From 091d71e023557136e96f0e54f301497a3fc95dc3 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sat, 17 Jan 2009 00:10:45 +0100 Subject: PM: Fix compilation warning in kernel/power/main.c Reorder the code in kernel/power/main.c to fix compilation warning triggered by unsetting CONFIG_SUSPEND. Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- kernel/power/main.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/kernel/power/main.c b/kernel/power/main.c index 23998887397..b4d219016b6 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -57,16 +57,6 @@ int pm_notifier_call_chain(unsigned long val) #ifdef CONFIG_PM_DEBUG int pm_test_level = TEST_NONE; -static int suspend_test(int level) -{ - if (pm_test_level == level) { - printk(KERN_INFO "suspend debug: Waiting for 5 seconds.\n"); - mdelay(5000); - return 1; - } - return 0; -} - static const char * const pm_tests[__TEST_AFTER_LAST] = { [TEST_NONE] = "none", [TEST_CORE] = "core", @@ -125,14 +115,24 @@ static ssize_t pm_test_store(struct kobject *kobj, struct kobj_attribute *attr, } power_attr(pm_test); -#else /* !CONFIG_PM_DEBUG */ -static inline int suspend_test(int level) { return 0; } -#endif /* !CONFIG_PM_DEBUG */ +#endif /* CONFIG_PM_DEBUG */ #endif /* CONFIG_PM_SLEEP */ #ifdef CONFIG_SUSPEND +static int suspend_test(int level) +{ +#ifdef CONFIG_PM_DEBUG + if (pm_test_level == level) { + printk(KERN_INFO "suspend debug: Waiting for 5 seconds.\n"); + mdelay(5000); + return 1; + } +#endif /* !CONFIG_PM_DEBUG */ + return 0; +} + #ifdef CONFIG_PM_TEST_SUSPEND /* -- cgit v1.2.3 From 5d8b532af9e52ea89208f5ef31889f646e67ba28 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 16 Jan 2009 23:09:14 +0100 Subject: ACPI suspend: Fix compilation warnings in drivers/acpi/sleep.c Fix two compilation warnings in drivers/acpi/sleep.c, one triggered by unsetting CONFIG_SUSPEND and the other triggered by unsetting CONFIG_HIBERNATION, by moving some code under the appropriate #ifdefs . Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- arch/x86/kernel/acpi/sleep.c | 4 ++-- drivers/acpi/sleep.c | 51 ++++++++++++++++++++++---------------------- 2 files changed, 28 insertions(+), 27 deletions(-) diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index 707c1f6f95f..a60c1f3bcb8 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -156,11 +156,11 @@ static int __init acpi_sleep_setup(char *str) #ifdef CONFIG_HIBERNATION if (strncmp(str, "s4_nohwsig", 10) == 0) acpi_no_s4_hw_signature(); + if (strncmp(str, "s4_nonvs", 8) == 0) + acpi_s4_no_nvs(); #endif if (strncmp(str, "old_ordering", 12) == 0) acpi_old_suspend_ordering(); - if (strncmp(str, "s4_nonvs", 8) == 0) - acpi_s4_no_nvs(); str = strchr(str, ','); if (str != NULL) str += strspn(str, ", \t"); diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 7e3c609cbef..af85f5ba1be 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -90,31 +90,6 @@ void __init acpi_old_suspend_ordering(void) old_suspend_ordering = true; } -/* - * According to the ACPI specification the BIOS should make sure that ACPI is - * enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states. Still, - * some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI - * on such systems during resume. Unfortunately that doesn't help in - * particularly pathological cases in which SCI_EN has to be set directly on - * resume, although the specification states very clearly that this flag is - * owned by the hardware. The set_sci_en_on_resume variable will be set in such - * cases. - */ -static bool set_sci_en_on_resume; -/* - * The ACPI specification wants us to save NVS memory regions during hibernation - * and to restore them during the subsequent resume. However, it is not certain - * if this mechanism is going to work on all machines, so we allow the user to - * disable this mechanism using the 'acpi_sleep=s4_nonvs' kernel command line - * option. - */ -static bool s4_no_nvs; - -void __init acpi_s4_no_nvs(void) -{ - s4_no_nvs = true; -} - /** * acpi_pm_disable_gpes - Disable the GPEs. */ @@ -193,6 +168,18 @@ static void acpi_pm_end(void) #endif /* CONFIG_ACPI_SLEEP */ #ifdef CONFIG_SUSPEND +/* + * According to the ACPI specification the BIOS should make sure that ACPI is + * enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states. Still, + * some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI + * on such systems during resume. Unfortunately that doesn't help in + * particularly pathological cases in which SCI_EN has to be set directly on + * resume, although the specification states very clearly that this flag is + * owned by the hardware. The set_sci_en_on_resume variable will be set in such + * cases. + */ +static bool set_sci_en_on_resume; + extern void do_suspend_lowlevel(void); static u32 acpi_suspend_states[] = { @@ -396,6 +383,20 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { #endif /* CONFIG_SUSPEND */ #ifdef CONFIG_HIBERNATION +/* + * The ACPI specification wants us to save NVS memory regions during hibernation + * and to restore them during the subsequent resume. However, it is not certain + * if this mechanism is going to work on all machines, so we allow the user to + * disable this mechanism using the 'acpi_sleep=s4_nonvs' kernel command line + * option. + */ +static bool s4_no_nvs; + +void __init acpi_s4_no_nvs(void) +{ + s4_no_nvs = true; +} + static unsigned long s4_hardware_signature; static struct acpi_table_facs *facs; static bool nosigcheck; -- cgit v1.2.3 From 4312495f7db63d27ef52ec83dab55f14a8c43827 Mon Sep 17 00:00:00 2001 From: Tero Roponen Date: Sat, 17 Jan 2009 13:06:02 +0200 Subject: ACPI: Fix crash on ASUS laptops This patch fixes the crash I experienced in 2.6.29-rc2. Tested on ASUS M50vm. Signed-off-by: Tero Roponen Acked-by: Alexey Starikovskiy Signed-off-by: Len Brown --- drivers/acpi/ec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index a2b82c90a68..5c2f5d343be 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -982,7 +982,7 @@ int __init acpi_ec_ecdt_probe(void) saved_ec = kmalloc(sizeof(struct acpi_ec), GFP_KERNEL); if (!saved_ec) return -ENOMEM; - memcpy(&saved_ec, boot_ec, sizeof(saved_ec)); + memcpy(saved_ec, boot_ec, sizeof(*saved_ec)); /* fall through */ } /* This workaround is needed only on some broken machines, -- cgit v1.2.3 From 2b190e76def5233c542f6025b4a133b1d4bd1a37 Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Sat, 17 Jan 2009 15:51:27 +0100 Subject: panasonic-laptop: fix X[ ARRAY_SIZE(X) ] Ensure pcc->keymap[ ARRAY_SIZE(pcc->keymap) ] does not occur. Signed-off-by: Roel Kluin Signed-off-by: Len Brown --- drivers/platform/x86/panasonic-laptop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c index f30db367c82..c47a44dcb70 100644 --- a/drivers/platform/x86/panasonic-laptop.c +++ b/drivers/platform/x86/panasonic-laptop.c @@ -507,7 +507,7 @@ static void acpi_pcc_generate_keyinput(struct pcc_acpi *pcc) hkey_num = result & 0xf; - if (hkey_num < 0 || hkey_num > ARRAY_SIZE(pcc->keymap)) { + if (hkey_num < 0 || hkey_num >= ARRAY_SIZE(pcc->keymap)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "hotkey number out of range: %d\n", hkey_num)); -- cgit v1.2.3 From a9df80c5094ed2bac94f4a0d085651f44d549854 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Tue, 20 Jan 2009 16:17:40 +0100 Subject: eeepc-laptop: split eeepc_backlight_exit() eeepc_backlight_exit() was doing rfkill and input stuff, which is a nonsense. This patch add two specific exit functions, one for input and one for rfkill. Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 9d93cb971e5..66d611b225f 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -737,13 +737,21 @@ static void eeepc_backlight_exit(void) { if (eeepc_backlight_device) backlight_device_unregister(eeepc_backlight_device); - if (ehotk->inputdev) - input_unregister_device(ehotk->inputdev); + eeepc_backlight_device = NULL; +} + +static void eeepc_rfkill_exit(void) +{ if (ehotk->eeepc_wlan_rfkill) rfkill_unregister(ehotk->eeepc_wlan_rfkill); if (ehotk->eeepc_bluetooth_rfkill) rfkill_unregister(ehotk->eeepc_bluetooth_rfkill); - eeepc_backlight_device = NULL; +} + +static void eeepc_input_exit(void) +{ + if (ehotk->inputdev) + input_unregister_device(ehotk->inputdev); } static void eeepc_hwmon_exit(void) @@ -762,6 +770,8 @@ static void eeepc_hwmon_exit(void) static void __exit eeepc_laptop_exit(void) { eeepc_backlight_exit(); + eeepc_rfkill_exit(); + eeepc_input_exit(); eeepc_hwmon_exit(); acpi_bus_unregister_driver(&eeepc_hotk_driver); sysfs_remove_group(&platform_device->dev.kobj, @@ -865,6 +875,8 @@ fail_platform_driver: fail_hwmon: eeepc_backlight_exit(); fail_backlight: + eeepc_input_exit(); + eeepc_rfkill_exit(); return result; } -- cgit v1.2.3 From 1021e2119eb33a990a2b9ff1410805dd9bdf7997 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Tue, 20 Jan 2009 16:17:41 +0100 Subject: asus_acpi: Add R1F support Add R1F support Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/asus_acpi.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/asus_acpi.c b/drivers/platform/x86/asus_acpi.c index 1e74988c7b2..d63f26e666a 100644 --- a/drivers/platform/x86/asus_acpi.c +++ b/drivers/platform/x86/asus_acpi.c @@ -143,6 +143,7 @@ struct asus_hotk { S1300N, S5200N*/ A4S, /* Z81sp */ F3Sa, /* (Centrino) */ + R1F, END_MODEL } model; /* Models currently supported */ u16 event_count[128]; /* Count for each event TODO make this better */ @@ -420,7 +421,18 @@ static struct model_data model_conf[END_MODEL] = { .display_get = "\\ADVG", .display_set = "SDSP", }, - + { + .name = "R1F", + .mt_bt_switch = "BLED", + .mt_mled = "MLED", + .mt_wled = "WLED", + .mt_lcd_switch = "\\Q10", + .lcd_status = "\\GP06", + .brightness_set = "SPLV", + .brightness_get = "GPLV", + .display_set = "SDSP", + .display_get = "\\INFB" + } }; /* procdir we use */ @@ -1165,6 +1177,8 @@ static int asus_model_match(char *model) return W3V; else if (strncmp(model, "W5A", 3) == 0) return W5A; + else if (strncmp(model, "R1F", 3) == 0) + return R1F; else if (strncmp(model, "A4S", 3) == 0) return A4S; else if (strncmp(model, "F3Sa", 4) == 0) -- cgit v1.2.3 From 2a7dc0d8c60325e9bf820900bf919430e5a419ab Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Tue, 20 Jan 2009 16:17:42 +0100 Subject: asus-laptop: use generic netlink interface To be prepared for /proc/acpi/event removal we export events also through generic netlink interface. Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/asus-laptop.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 8fb8b359104..1b7a28c1da7 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -738,8 +738,9 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) lcd_blank(FB_BLANK_POWERDOWN); } - acpi_bus_generate_proc_event(hotk->device, event, - hotk->event_count[event % 128]++); + acpi_bus_generate_netlink_event(hotk->device->pnp.device_class, + dev_name(&hotk->device->dev), event, + hotk->event_count[event % 128]++); return; } -- cgit v1.2.3 From 034ce90a8d1051deaeb31bae7f26ff1440a5b988 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Tue, 20 Jan 2009 16:17:43 +0100 Subject: asus-laptop: hotkeys via the generic input interface This patch is based on eeepc-laptop.c and the patchs from Nicolas Trangez and Daniel Nascimento (mainly for the keymap). Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/asus-laptop.c | 155 ++++++++++++++++++++++++++++++++++++- 1 file changed, 154 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 1b7a28c1da7..53dbfb42062 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -46,6 +46,7 @@ #include #include #include +#include #define ASUS_LAPTOP_VERSION "0.42" @@ -181,6 +182,8 @@ struct asus_hotk { u8 light_level; //light sensor level u8 light_switch; //light sensor switch value u16 event_count[128]; //count for each event TODO make this better + struct input_dev *inputdev; + u16 *keycode_map; }; /* @@ -250,6 +253,37 @@ ASUS_LED(rled, "record"); ASUS_LED(pled, "phone"); ASUS_LED(gled, "gaming"); +struct key_entry { + char type; + u8 code; + u16 keycode; +}; + +enum { KE_KEY, KE_END }; + +static struct key_entry asus_keymap[] = { + {KE_KEY, 0x30, KEY_VOLUMEUP}, + {KE_KEY, 0x31, KEY_VOLUMEDOWN}, + {KE_KEY, 0x32, KEY_MUTE}, + {KE_KEY, 0x33, KEY_SWITCHVIDEOMODE}, + {KE_KEY, 0x34, KEY_SWITCHVIDEOMODE}, + {KE_KEY, 0x40, KEY_PREVIOUSSONG}, + {KE_KEY, 0x41, KEY_NEXTSONG}, + {KE_KEY, 0x43, KEY_STOP}, + {KE_KEY, 0x45, KEY_PLAYPAUSE}, + {KE_KEY, 0x50, KEY_EMAIL}, + {KE_KEY, 0x51, KEY_WWW}, + {KE_KEY, 0x5C, BTN_EXTRA}, /* Performance */ + {KE_KEY, 0x5D, KEY_WLAN}, + {KE_KEY, 0x61, KEY_SWITCHVIDEOMODE}, + {KE_KEY, 0x6B, BTN_TOUCH}, /* Lock Mouse */ + {KE_KEY, 0x82, KEY_CAMERA}, + {KE_KEY, 0x8A, KEY_TV}, + {KE_KEY, 0x95, KEY_MEDIA}, + {KE_KEY, 0x99, KEY_PHONE}, + {KE_END, 0}, +}; + /* * This function evaluates an ACPI method, given an int as parameter, the * method is searched within the scope of the handle, can be NULL. The output @@ -720,8 +754,68 @@ static ssize_t store_gps(struct device *dev, struct device_attribute *attr, return store_status(buf, count, NULL, GPS_ON); } +/* + * Hotkey functions + */ +static struct key_entry *asus_get_entry_by_scancode(int code) +{ + struct key_entry *key; + + for (key = asus_keymap; key->type != KE_END; key++) + if (code == key->code) + return key; + + return NULL; +} + +static struct key_entry *asus_get_entry_by_keycode(int code) +{ + struct key_entry *key; + + for (key = asus_keymap; key->type != KE_END; key++) + if (code == key->keycode && key->type == KE_KEY) + return key; + + return NULL; +} + +static int asus_getkeycode(struct input_dev *dev, int scancode, int *keycode) +{ + struct key_entry *key = asus_get_entry_by_scancode(scancode); + + if (key && key->type == KE_KEY) { + *keycode = key->keycode; + return 0; + } + + return -EINVAL; +} + +static int asus_setkeycode(struct input_dev *dev, int scancode, int keycode) +{ + struct key_entry *key; + int old_keycode; + + if (keycode < 0 || keycode > KEY_MAX) + return -EINVAL; + + key = asus_get_entry_by_scancode(scancode); + if (key && key->type == KE_KEY) { + old_keycode = key->keycode; + key->keycode = keycode; + set_bit(keycode, dev->keybit); + if (!asus_get_entry_by_keycode(old_keycode)) + clear_bit(old_keycode, dev->keybit); + return 0; + } + + return -EINVAL; +} + static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) { + static struct key_entry *key; + /* TODO Find a better way to handle events count. */ if (!hotk) return; @@ -742,7 +836,20 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) dev_name(&hotk->device->dev), event, hotk->event_count[event % 128]++); - return; + if (hotk->inputdev) { + key = asus_get_entry_by_scancode(event); + if (!key) + return ; + + switch (key->type) { + case KE_KEY: + input_report_key(hotk->inputdev, key->keycode, 1); + input_sync(hotk->inputdev); + input_report_key(hotk->inputdev, key->keycode, 0); + input_sync(hotk->inputdev); + break; + } + } } #define ASUS_CREATE_DEVICE_ATTR(_name) \ @@ -960,6 +1067,38 @@ static int asus_hotk_get_info(void) return AE_OK; } +static int asus_input_init(void) +{ + const struct key_entry *key; + int result; + + hotk->inputdev = input_allocate_device(); + if (!hotk->inputdev) { + printk(ASUS_INFO "Unable to allocate input device\n"); + return 0; + } + hotk->inputdev->name = "Asus Laptop extra buttons"; + hotk->inputdev->phys = ASUS_HOTK_FILE "/input0"; + hotk->inputdev->id.bustype = BUS_HOST; + hotk->inputdev->getkeycode = asus_getkeycode; + hotk->inputdev->setkeycode = asus_setkeycode; + + for (key = asus_keymap; key->type != KE_END; key++) { + switch (key->type) { + case KE_KEY: + set_bit(EV_KEY, hotk->inputdev->evbit); + set_bit(key->keycode, hotk->inputdev->keybit); + break; + } + } + result = input_register_device(hotk->inputdev); + if (result) { + printk(ASUS_INFO "Unable to register input device\n"); + input_free_device(hotk->inputdev); + } + return result; +} + static int asus_hotk_check(void) { int result = 0; @@ -1092,10 +1231,17 @@ static void asus_led_exit(void) ASUS_LED_UNREGISTER(gled); } +static void asus_input_exit(void) +{ + if (hotk->inputdev) + input_unregister_device(hotk->inputdev); +} + static void __exit asus_laptop_exit(void) { asus_backlight_exit(); asus_led_exit(); + asus_input_exit(); acpi_bus_unregister_driver(&asus_hotk_driver); sysfs_remove_group(&asuspf_device->dev.kobj, &asuspf_attribute_group); @@ -1217,6 +1363,10 @@ static int __init asus_laptop_init(void) printk(ASUS_INFO "Brightness ignored, must be controlled by " "ACPI video driver\n"); + result = asus_input_init(); + if (result) + goto fail_input; + result = asus_led_init(dev); if (result) goto fail_led; @@ -1256,6 +1406,9 @@ static int __init asus_laptop_init(void) asus_led_exit(); fail_led: + asus_input_exit(); + + fail_input: asus_backlight_exit(); fail_backlight: -- cgit v1.2.3 From 12d6f35b0ff1f446d465e95e9a2fe187263479ef Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Tue, 20 Jan 2009 16:17:44 +0100 Subject: asus-laptop: update Kconfig for input layer Update Kconfig, now asus-laptop use the input layer. Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 1a266d4ab5f..94363115a42 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -42,6 +42,7 @@ config ASUS_LAPTOP depends on LEDS_CLASS depends on NEW_LEDS depends on BACKLIGHT_CLASS_DEVICE + depends on INPUT ---help--- This is the new Linux driver for Asus laptops. It may also support some MEDION, JVC or VICTOR laptops. It makes all the extra buttons generate -- cgit v1.2.3 From ed6f44215374d94c35cbe98b582d004b9a3f5fbe Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Tue, 20 Jan 2009 16:17:45 +0100 Subject: asus-laptop: fix label indentation Fix the label indentation Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/asus-laptop.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 53dbfb42062..56af6cf385b 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -1184,7 +1184,7 @@ static int asus_hotk_add(struct acpi_device *device) /* GPS is on by default */ write_status(NULL, 1, GPS_ON); - end: +end: if (result) { kfree(hotk->name); kfree(hotk); @@ -1393,25 +1393,25 @@ static int __init asus_laptop_init(void) return 0; - fail_sysfs: +fail_sysfs: platform_device_del(asuspf_device); - fail_platform_device2: +fail_platform_device2: platform_device_put(asuspf_device); - fail_platform_device1: +fail_platform_device1: platform_driver_unregister(&asuspf_driver); - fail_platform_driver: +fail_platform_driver: asus_led_exit(); - fail_led: +fail_led: asus_input_exit(); - fail_input: +fail_input: asus_backlight_exit(); - fail_backlight: +fail_backlight: return result; } -- cgit v1.2.3 From b5f6f26550700445dcc125bbf75b9104e779d353 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Tue, 20 Jan 2009 16:17:46 +0100 Subject: eeepc-laptop: Add support for extended hotkeys Newer Eees have extra hotkeys above the function keys. This patch adds support for sending them through the input layer. Signed-off-by: Matthew Garrett Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 66d611b225f..d153871fd5a 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -161,6 +161,10 @@ static struct key_entry eeepc_keymap[] = { {KE_KEY, 0x13, KEY_MUTE }, {KE_KEY, 0x14, KEY_VOLUMEDOWN }, {KE_KEY, 0x15, KEY_VOLUMEUP }, + {KE_KEY, 0x1a, KEY_COFFEE }, + {KE_KEY, 0x1b, KEY_ZOOM }, + {KE_KEY, 0x1c, KEY_PROG2 }, + {KE_KEY, 0x1d, KEY_PROG3 }, {KE_KEY, 0x30, KEY_SWITCHVIDEOMODE }, {KE_KEY, 0x31, KEY_SWITCHVIDEOMODE }, {KE_KEY, 0x32, KEY_SWITCHVIDEOMODE }, -- cgit v1.2.3 From c9ddf8fede1271bde0a512fa94f77c4cb1ef4040 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Tue, 20 Jan 2009 16:17:47 +0100 Subject: eeepc-laptop: Check return values from rfkill_register Error out if rfkill registration fails, and also set the default system state appropriately on boot Signed-off-by: Matthew Garrett Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 51 +++++++++++++++++++++++++++---------- 1 file changed, 37 insertions(+), 14 deletions(-) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index d153871fd5a..21e5206ed28 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -562,7 +562,7 @@ static int eeepc_hotk_add(struct acpi_device *device) ehotk->device = device; result = eeepc_hotk_check(); if (result) - goto end; + goto ehotk_fail; status = acpi_install_notify_handler(ehotk->handle, ACPI_SYSTEM_NOTIFY, eeepc_hotk_notify, ehotk); if (ACPI_FAILURE(status)) @@ -573,18 +573,25 @@ static int eeepc_hotk_add(struct acpi_device *device) RFKILL_TYPE_WLAN); if (!ehotk->eeepc_wlan_rfkill) - goto end; + goto wlan_fail; ehotk->eeepc_wlan_rfkill->name = "eeepc-wlan"; ehotk->eeepc_wlan_rfkill->toggle_radio = eeepc_wlan_rfkill_set; ehotk->eeepc_wlan_rfkill->get_state = eeepc_wlan_rfkill_state; - if (get_acpi(CM_ASL_WLAN) == 1) + if (get_acpi(CM_ASL_WLAN) == 1) { ehotk->eeepc_wlan_rfkill->state = RFKILL_STATE_UNBLOCKED; - else + rfkill_set_default(RFKILL_TYPE_WLAN, + RFKILL_STATE_UNBLOCKED); + } else { ehotk->eeepc_wlan_rfkill->state = RFKILL_STATE_SOFT_BLOCKED; - rfkill_register(ehotk->eeepc_wlan_rfkill); + rfkill_set_default(RFKILL_TYPE_WLAN, + RFKILL_STATE_SOFT_BLOCKED); + } + result = rfkill_register(ehotk->eeepc_wlan_rfkill); + if (result) + goto wlan_fail; } if (get_acpi(CM_ASL_BLUETOOTH) != -1) { @@ -592,27 +599,43 @@ static int eeepc_hotk_add(struct acpi_device *device) rfkill_allocate(&device->dev, RFKILL_TYPE_BLUETOOTH); if (!ehotk->eeepc_bluetooth_rfkill) - goto end; + goto bluetooth_fail; ehotk->eeepc_bluetooth_rfkill->name = "eeepc-bluetooth"; ehotk->eeepc_bluetooth_rfkill->toggle_radio = eeepc_bluetooth_rfkill_set; ehotk->eeepc_bluetooth_rfkill->get_state = eeepc_bluetooth_rfkill_state; - if (get_acpi(CM_ASL_BLUETOOTH) == 1) + if (get_acpi(CM_ASL_BLUETOOTH) == 1) { ehotk->eeepc_bluetooth_rfkill->state = RFKILL_STATE_UNBLOCKED; - else + rfkill_set_default(RFKILL_TYPE_BLUETOOTH, + RFKILL_STATE_UNBLOCKED); + } else { ehotk->eeepc_bluetooth_rfkill->state = RFKILL_STATE_SOFT_BLOCKED; - rfkill_register(ehotk->eeepc_bluetooth_rfkill); - } + rfkill_set_default(RFKILL_TYPE_BLUETOOTH, + RFKILL_STATE_SOFT_BLOCKED); + } - end: - if (result) { - kfree(ehotk); - ehotk = NULL; + result = rfkill_register(ehotk->eeepc_bluetooth_rfkill); + if (result) + goto bluetooth_fail; } + return 0; + + bluetooth_fail: + if (ehotk->eeepc_bluetooth_rfkill) + rfkill_free(ehotk->eeepc_bluetooth_rfkill); + rfkill_unregister(ehotk->eeepc_wlan_rfkill); + ehotk->eeepc_wlan_rfkill = NULL; + wlan_fail: + if (ehotk->eeepc_wlan_rfkill) + rfkill_free(ehotk->eeepc_wlan_rfkill); + ehotk_fail: + kfree(ehotk); + ehotk = NULL; + return result; } -- cgit v1.2.3 From 5740294ca3a9b113fe146f2826effb69ca50008d Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Tue, 20 Jan 2009 16:17:48 +0100 Subject: eeepc-laptop: Implement rfkill hotplugging in eeepc-laptop The Eee implements rfkill by logically unplugging the wireless card from the PCI bus. Despite sending ACPI notifications, this does not appear to be implemented using standard ACPI hotplug - nor does the firmware provide the _OSC method required to support native PCIe hotplug. The only sensible choice appears to be to handle the hotplugging directly in the eeepc-laptop driver. Tested successfully on a 700, 900 and 901. Signed-off-by: Matthew Garrett Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 83 +++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 21e5206ed28..66655d2b4ce 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -30,6 +30,7 @@ #include #include #include +#include #define EEEPC_LAPTOP_VERSION "0.1" @@ -517,6 +518,41 @@ static void notify_brn(void) bd->props.brightness = read_brightness(bd); } +static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) +{ + struct pci_dev *dev; + struct pci_bus *bus = pci_find_bus(0, 1); + + if (event != ACPI_NOTIFY_BUS_CHECK) + return; + + if (!bus) { + printk(EEEPC_WARNING "Unable to find PCI bus 1?\n"); + return; + } + + if (get_acpi(CM_ASL_WLAN) == 1) { + dev = pci_get_slot(bus, 0); + if (dev) { + /* Device already present */ + pci_dev_put(dev); + return; + } + dev = pci_scan_single_device(bus, 0); + if (dev) { + pci_bus_assign_resources(bus); + if (pci_bus_add_device(dev)) + printk(EEEPC_ERR "Unable to hotplug wifi\n"); + } + } else { + dev = pci_get_slot(bus, 0); + if (dev) { + pci_remove_bus_device(dev); + pci_dev_put(dev); + } + } +} + static void eeepc_hotk_notify(acpi_handle handle, u32 event, void *data) { static struct key_entry *key; @@ -543,6 +579,45 @@ static void eeepc_hotk_notify(acpi_handle handle, u32 event, void *data) } } +static int eeepc_register_rfkill_notifier(char *node) +{ + acpi_status status = AE_OK; + acpi_handle handle; + + status = acpi_get_handle(NULL, node, &handle); + + if (ACPI_SUCCESS(status)) { + status = acpi_install_notify_handler(handle, + ACPI_SYSTEM_NOTIFY, + eeepc_rfkill_notify, + NULL); + if (ACPI_FAILURE(status)) + printk(EEEPC_WARNING + "Failed to register notify on %s\n", node); + } else + return -ENODEV; + + return 0; +} + +static void eeepc_unregister_rfkill_notifier(char *node) +{ + acpi_status status = AE_OK; + acpi_handle handle; + + status = acpi_get_handle(NULL, node, &handle); + + if (ACPI_SUCCESS(status)) { + status = acpi_remove_notify_handler(handle, + ACPI_SYSTEM_NOTIFY, + eeepc_rfkill_notify); + if (ACPI_FAILURE(status)) + printk(EEEPC_ERR + "Error removing rfkill notify handler %s\n", + node); + } +} + static int eeepc_hotk_add(struct acpi_device *device) { acpi_status status = AE_OK; @@ -622,6 +697,10 @@ static int eeepc_hotk_add(struct acpi_device *device) if (result) goto bluetooth_fail; } + + eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6"); + eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7"); + return 0; bluetooth_fail: @@ -649,6 +728,10 @@ static int eeepc_hotk_remove(struct acpi_device *device, int type) eeepc_hotk_notify); if (ACPI_FAILURE(status)) printk(EEEPC_ERR "Error removing notify handler\n"); + + eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6"); + eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7"); + kfree(ehotk); return 0; } -- cgit v1.2.3 From 2b25c9f01aa58d48129b2f93748dfb5d1f7ab0a2 Mon Sep 17 00:00:00 2001 From: Corentin Chary Date: Tue, 20 Jan 2009 16:17:49 +0100 Subject: eeepc-laptop: use netlink interface To be prepared for /proc/acpi/event removal we export events also through generic netlink interface. Signed-off-by: Corentin Chary Signed-off-by: Len Brown --- drivers/platform/x86/eeepc-laptop.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index 66655d2b4ce..4348d9909bb 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -560,8 +560,9 @@ static void eeepc_hotk_notify(acpi_handle handle, u32 event, void *data) return; if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX) notify_brn(); - acpi_bus_generate_proc_event(ehotk->device, event, - ehotk->event_count[event % 128]++); + acpi_bus_generate_netlink_event(ehotk->device->pnp.device_class, + dev_name(&ehotk->device->dev), event, + ehotk->event_count[event % 128]++); if (ehotk->inputdev) { key = eepc_get_entry_by_scancode(event); if (key) { -- cgit v1.2.3 From 19d00cc196a3a66fd074f62b39d219f743b92338 Mon Sep 17 00:00:00 2001 From: Wang Cong Date: Wed, 21 Jan 2009 10:49:16 -0500 Subject: Btrfs: cleanup fs/btrfs/super.c::btrfs_control_ioctl() - Remove the unused local variable 'len'; - Check return value of kmalloc(). Signed-off-by: Wang Cong Signed-off-by: Chris Mason --- fs/btrfs/super.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 92c9b543def..795b6246bcd 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -583,17 +583,18 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd, struct btrfs_ioctl_vol_args *vol; struct btrfs_fs_devices *fs_devices; int ret = -ENOTTY; - int len; if (!capable(CAP_SYS_ADMIN)) return -EPERM; vol = kmalloc(sizeof(*vol), GFP_KERNEL); + if (!vol) + return -ENOMEM; + if (copy_from_user(vol, (void __user *)arg, sizeof(*vol))) { ret = -EFAULT; goto out; } - len = strnlen(vol->name, BTRFS_PATH_NAME_MAX); switch (cmd) { case BTRFS_IOC_SCAN_DEV: -- cgit v1.2.3 From eb1eb04fdfbd9e1c9c40d072ab1b82fe593eeb0f Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Wed, 21 Jan 2009 10:49:16 -0500 Subject: Btrfs: MAINTAINERS entry Signed-off-by: Chris Mason --- MAINTAINERS | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index fbc8fa58d56..e1b74261260 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1021,6 +1021,14 @@ M: mb@bu3sch.de W: http://bu3sch.de/btgpio.php S: Maintained +BTRFS FILE SYSTEM +P: Chris Mason +M: chris.mason@oracle.com +L: linux-btrfs@vger.kernel.org +W: http://btrfs.wiki.kernel.org/ +T: git kernel.org:/pub/scm/linux/kernel/git/mason/btrfs-unstable.git +S: Maintained + BTTV VIDEO4LINUX DRIVER P: Mauro Carvalho Chehab M: mchehab@infradead.org -- cgit v1.2.3 From 070604040b86511cc2df0f25f98e26c5529bd928 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 21 Jan 2009 10:49:16 -0500 Subject: Btrfs: cleanup xattr code Andrew's review of the xattr code revealed some minor issues that this patch addresses. Just an error return fix, got rid of a useless statement and commented one of the trickier parts of __btrfs_getxattr. Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/xattr.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c index 7f332e27089..b4fa5f4b6ad 100644 --- a/fs/btrfs/xattr.c +++ b/fs/btrfs/xattr.c @@ -45,9 +45,12 @@ ssize_t __btrfs_getxattr(struct inode *inode, const char *name, /* lookup the xattr by name */ di = btrfs_lookup_xattr(NULL, root, path, inode->i_ino, name, strlen(name), 0); - if (!di || IS_ERR(di)) { + if (!di) { ret = -ENODATA; goto out; + } else if (IS_ERR(di)) { + ret = PTR_ERR(di); + goto out; } leaf = path->nodes[0]; @@ -62,6 +65,14 @@ ssize_t __btrfs_getxattr(struct inode *inode, const char *name, ret = -ERANGE; goto out; } + + /* + * The way things are packed into the leaf is like this + * |struct btrfs_dir_item|name|data| + * where name is the xattr name, so security.foo, and data is the + * content of the xattr. data_ptr points to the location in memory + * where the data starts in the in memory leaf + */ data_ptr = (unsigned long)((char *)(di + 1) + btrfs_dir_name_len(leaf, di)); read_extent_buffer(leaf, buffer, data_ptr, @@ -176,7 +187,6 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size) ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); if (ret < 0) goto err; - ret = 0; advance = 0; while (1) { leaf = path->nodes[0]; -- cgit v1.2.3 From 7eaebe7d503c3ef240ac7b3efc5433fe647c0298 Mon Sep 17 00:00:00 2001 From: Huang Weiyi Date: Wed, 21 Jan 2009 10:49:16 -0500 Subject: Btrfs: removed unused #include 's Removed unused #include 's in btrfs Signed-off-by: Huang Weiyi Signed-off-by: Chris Mason --- fs/btrfs/async-thread.c | 1 - fs/btrfs/compression.c | 1 - fs/btrfs/disk-io.c | 1 - fs/btrfs/extent-tree.c | 1 - fs/btrfs/extent_io.c | 1 - fs/btrfs/extent_map.c | 1 - fs/btrfs/file.c | 1 - fs/btrfs/inode.c | 1 - fs/btrfs/ioctl.c | 1 - fs/btrfs/super.c | 1 - fs/btrfs/volumes.c | 1 - 11 files changed, 11 deletions(-) diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c index 8e2fec05dbe..d5f4e94f2ca 100644 --- a/fs/btrfs/async-thread.c +++ b/fs/btrfs/async-thread.c @@ -16,7 +16,6 @@ * Boston, MA 021110-1307, USA. */ -#include #include #include #include diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index ee848d8585d..ab07627084f 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -32,7 +32,6 @@ #include #include #include -#include #include #include "compat.h" #include "ctree.h" diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 81a313874ae..37e12f62039 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -16,7 +16,6 @@ * Boston, MA 021110-1307, USA. */ -#include #include #include #include diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 293da650873..cdc961e7556 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -19,7 +19,6 @@ #include #include #include -#include #include "compat.h" #include "hash.h" #include "crc32c.h" diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index e086d407f1f..c9446d4840e 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -9,7 +9,6 @@ #include #include #include -#include #include #include #include "extent_io.h" diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index 4a83e33ada3..50da69da20c 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -3,7 +3,6 @@ #include #include #include -#include #include #include "extent_map.h" diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 90268334145..fbcbf43f511 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -29,7 +29,6 @@ #include #include #include -#include #include "ctree.h" #include "disk-io.h" #include "transaction.h" diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 8adfe059ab4..44dbd550c4b 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -34,7 +34,6 @@ #include #include #include -#include #include #include #include diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index c2aa33e3feb..988fdc8b49e 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -38,7 +38,6 @@ #include #include #include -#include #include #include #include "compat.h" diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 795b6246bcd..4c0b7569ba5 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -37,7 +37,6 @@ #include #include #include -#include #include "compat.h" #include "ctree.h" #include "disk-io.h" diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 3451e1cca2b..f6e1fc55104 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -20,7 +20,6 @@ #include #include #include -#include #include #include "compat.h" #include "ctree.h" -- cgit v1.2.3 From 119e10cf1b2f6a6cafff74f32373d631489f54c2 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 21 Jan 2009 10:49:16 -0500 Subject: Btrfs: Remove extra KERN_INFO in the middle of a line The "devid transid " printk in btrfs_scan_one_device() actually follows another printk that doesn't end in a newline (since the intention is for the two printks to make one line of output), so the KERN_INFO just ends up messing up the output: device label exp <6>devid 1 transid 9 /dev/sda5 Fix this by changing the extra KERN_INFO to KERN_CONT. Signed-off-by: Roland Dreier Signed-off-by: Chris Mason --- fs/btrfs/volumes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index f6e1fc55104..397c8db1bc2 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -577,7 +577,7 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder, *(unsigned long long *)disk_super->fsid, *(unsigned long long *)(disk_super->fsid + 8)); } - printk(KERN_INFO "devid %llu transid %llu %s\n", + printk(KERN_CONT "devid %llu transid %llu %s\n", (unsigned long long)devid, (unsigned long long)transid, path); ret = device_list_add(path, disk_super, devid, fs_devices_ret); -- cgit v1.2.3 From 57506d50ed6db7b0e7ddc9845e86e81f140983d5 Mon Sep 17 00:00:00 2001 From: Qinghuang Feng Date: Wed, 21 Jan 2009 10:49:16 -0500 Subject: Btrfs: check return value for kthread_run() correctly kthread_run() returns the kthread or ERR_PTR(-ENOMEM), not NULL. Signed-off-by: Qinghuang Feng Signed-off-by: Chris Mason --- fs/btrfs/disk-io.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 37e12f62039..0d8ccd625ba 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1739,13 +1739,13 @@ struct btrfs_root *open_ctree(struct super_block *sb, fs_info->system_alloc_profile = fs_info->metadata_alloc_profile; fs_info->cleaner_kthread = kthread_run(cleaner_kthread, tree_root, "btrfs-cleaner"); - if (!fs_info->cleaner_kthread) + if (IS_ERR(fs_info->cleaner_kthread)) goto fail_csum_root; fs_info->transaction_kthread = kthread_run(transaction_kthread, tree_root, "btrfs-transaction"); - if (!fs_info->transaction_kthread) + if (IS_ERR(fs_info->transaction_kthread)) goto fail_cleaner; if (btrfs_super_log_root(disk_super) != 0) { -- cgit v1.2.3 From c6e308713a47527f88a277ee95b7c5d1db80f77b Mon Sep 17 00:00:00 2001 From: Qinghuang Feng Date: Wed, 21 Jan 2009 10:59:08 -0500 Subject: Btrfs: simplify iteration codes Merge list_for_each* and list_entry to list_for_each_entry* Signed-off-by: Qinghuang Feng Signed-off-by: Chris Mason --- fs/btrfs/disk-io.c | 15 ++++----------- fs/btrfs/extent-tree.c | 8 ++------ fs/btrfs/inode.c | 5 ++--- fs/btrfs/ordered-data.c | 4 +--- fs/btrfs/transaction.c | 4 +--- fs/btrfs/volumes.c | 35 +++++++++-------------------------- 6 files changed, 19 insertions(+), 52 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 0d8ccd625ba..26a18779e84 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1135,7 +1135,6 @@ static int btrfs_congested_fn(void *congested_data, int bdi_bits) { struct btrfs_fs_info *info = (struct btrfs_fs_info *)congested_data; int ret = 0; - struct list_head *cur; struct btrfs_device *device; struct backing_dev_info *bdi; #if 0 @@ -1143,8 +1142,7 @@ static int btrfs_congested_fn(void *congested_data, int bdi_bits) btrfs_congested_async(info, 0)) return 1; #endif - list_for_each(cur, &info->fs_devices->devices) { - device = list_entry(cur, struct btrfs_device, dev_list); + list_for_each_entry(device, &info->fs_devices->devices, dev_list) { if (!device->bdev) continue; bdi = blk_get_backing_dev_info(device->bdev); @@ -1162,13 +1160,11 @@ static int btrfs_congested_fn(void *congested_data, int bdi_bits) */ static void __unplug_io_fn(struct backing_dev_info *bdi, struct page *page) { - struct list_head *cur; struct btrfs_device *device; struct btrfs_fs_info *info; info = (struct btrfs_fs_info *)bdi->unplug_io_data; - list_for_each(cur, &info->fs_devices->devices) { - device = list_entry(cur, struct btrfs_device, dev_list); + list_for_each_entry(device, &info->fs_devices->devices, dev_list) { if (!device->bdev) continue; @@ -1994,7 +1990,6 @@ static int write_dev_supers(struct btrfs_device *device, int write_all_supers(struct btrfs_root *root, int max_mirrors) { - struct list_head *cur; struct list_head *head = &root->fs_info->fs_devices->devices; struct btrfs_device *dev; struct btrfs_super_block *sb; @@ -2010,8 +2005,7 @@ int write_all_supers(struct btrfs_root *root, int max_mirrors) sb = &root->fs_info->super_for_commit; dev_item = &sb->dev_item; - list_for_each(cur, head) { - dev = list_entry(cur, struct btrfs_device, dev_list); + list_for_each_entry(dev, head, dev_list) { if (!dev->bdev) { total_errors++; continue; @@ -2044,8 +2038,7 @@ int write_all_supers(struct btrfs_root *root, int max_mirrors) } total_errors = 0; - list_for_each(cur, head) { - dev = list_entry(cur, struct btrfs_device, dev_list); + list_for_each_entry(dev, head, dev_list) { if (!dev->bdev) continue; if (!dev->in_fs_metadata || !dev->writeable) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index cdc961e7556..a4e36c38b81 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -325,10 +325,8 @@ static struct btrfs_space_info *__find_space_info(struct btrfs_fs_info *info, u64 flags) { struct list_head *head = &info->space_info; - struct list_head *cur; struct btrfs_space_info *found; - list_for_each(cur, head) { - found = list_entry(cur, struct btrfs_space_info, list); + list_for_each_entry(found, head, list) { if (found->flags == flags) return found; } @@ -3013,7 +3011,6 @@ loop_check: static void dump_space_info(struct btrfs_space_info *info, u64 bytes) { struct btrfs_block_group_cache *cache; - struct list_head *l; printk(KERN_INFO "space_info has %llu free, is %sfull\n", (unsigned long long)(info->total_bytes - info->bytes_used - @@ -3021,8 +3018,7 @@ static void dump_space_info(struct btrfs_space_info *info, u64 bytes) (info->full) ? "" : "not "); down_read(&info->groups_sem); - list_for_each(l, &info->block_groups) { - cache = list_entry(l, struct btrfs_block_group_cache, list); + list_for_each_entry(cache, &info->block_groups, list) { spin_lock(&cache->lock); printk(KERN_INFO "block group %llu has %llu bytes, %llu used " "%llu pinned %llu reserved\n", diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 44dbd550c4b..45cf03ee1bc 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1323,12 +1323,11 @@ static noinline int add_pending_csums(struct btrfs_trans_handle *trans, struct inode *inode, u64 file_offset, struct list_head *list) { - struct list_head *cur; struct btrfs_ordered_sum *sum; btrfs_set_trans_block_group(trans, inode); - list_for_each(cur, list) { - sum = list_entry(cur, struct btrfs_ordered_sum, list); + + list_for_each_entry(sum, list, list) { btrfs_csum_file_blocks(trans, BTRFS_I(inode)->root->fs_info->csum_root, sum); } diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index a2094017027..77c2411a5f0 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -613,7 +613,6 @@ int btrfs_find_ordered_sum(struct inode *inode, u64 offset, u64 disk_bytenr, struct btrfs_sector_sum *sector_sums; struct btrfs_ordered_extent *ordered; struct btrfs_ordered_inode_tree *tree = &BTRFS_I(inode)->ordered_tree; - struct list_head *cur; unsigned long num_sectors; unsigned long i; u32 sectorsize = BTRFS_I(inode)->root->sectorsize; @@ -624,8 +623,7 @@ int btrfs_find_ordered_sum(struct inode *inode, u64 offset, u64 disk_bytenr, return 1; mutex_lock(&tree->mutex); - list_for_each_prev(cur, &ordered->list) { - ordered_sum = list_entry(cur, struct btrfs_ordered_sum, list); + list_for_each_entry_reverse(ordered_sum, &ordered->list, list) { if (disk_bytenr >= ordered_sum->bytenr) { num_sectors = ordered_sum->len / sectorsize; sector_sums = ordered_sum->sums; diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 8a08f944334..919172de5c9 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -852,11 +852,9 @@ static noinline int create_pending_snapshots(struct btrfs_trans_handle *trans, { struct btrfs_pending_snapshot *pending; struct list_head *head = &trans->transaction->pending_snapshots; - struct list_head *cur; int ret; - list_for_each(cur, head) { - pending = list_entry(cur, struct btrfs_pending_snapshot, list); + list_for_each_entry(pending, head, list) { ret = create_pending_snapshot(trans, fs_info, pending); BUG_ON(ret); } diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 397c8db1bc2..fd0bedb07a6 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -103,10 +103,8 @@ static noinline struct btrfs_device *__find_device(struct list_head *head, u64 devid, u8 *uuid) { struct btrfs_device *dev; - struct list_head *cur; - list_for_each(cur, head) { - dev = list_entry(cur, struct btrfs_device, dev_list); + list_for_each_entry(dev, head, dev_list) { if (dev->devid == devid && (!uuid || !memcmp(dev->uuid, uuid, BTRFS_UUID_SIZE))) { return dev; @@ -117,11 +115,9 @@ static noinline struct btrfs_device *__find_device(struct list_head *head, static noinline struct btrfs_fs_devices *find_fsid(u8 *fsid) { - struct list_head *cur; struct btrfs_fs_devices *fs_devices; - list_for_each(cur, &fs_uuids) { - fs_devices = list_entry(cur, struct btrfs_fs_devices, list); + list_for_each_entry(fs_devices, &fs_uuids, list) { if (memcmp(fsid, fs_devices->fsid, BTRFS_FSID_SIZE) == 0) return fs_devices; } @@ -344,14 +340,11 @@ error: int btrfs_close_extra_devices(struct btrfs_fs_devices *fs_devices) { - struct list_head *tmp; - struct list_head *cur; - struct btrfs_device *device; + struct btrfs_device *device, *next; mutex_lock(&uuid_mutex); again: - list_for_each_safe(cur, tmp, &fs_devices->devices) { - device = list_entry(cur, struct btrfs_device, dev_list); + list_for_each_entry_safe(device, next, &fs_devices->devices, dev_list) { if (device->in_fs_metadata) continue; @@ -382,14 +375,12 @@ again: static int __btrfs_close_devices(struct btrfs_fs_devices *fs_devices) { - struct list_head *cur; struct btrfs_device *device; if (--fs_devices->opened > 0) return 0; - list_for_each(cur, &fs_devices->devices) { - device = list_entry(cur, struct btrfs_device, dev_list); + list_for_each_entry(device, &fs_devices->devices, dev_list) { if (device->bdev) { close_bdev_exclusive(device->bdev, device->mode); fs_devices->open_devices--; @@ -438,7 +429,6 @@ static int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices, { struct block_device *bdev; struct list_head *head = &fs_devices->devices; - struct list_head *cur; struct btrfs_device *device; struct block_device *latest_bdev = NULL; struct buffer_head *bh; @@ -449,8 +439,7 @@ static int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices, int seeding = 1; int ret = 0; - list_for_each(cur, head) { - device = list_entry(cur, struct btrfs_device, dev_list); + list_for_each_entry(device, head, dev_list) { if (device->bdev) continue; if (!device->name) @@ -1016,14 +1005,12 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) } if (strcmp(device_path, "missing") == 0) { - struct list_head *cur; struct list_head *devices; struct btrfs_device *tmp; device = NULL; devices = &root->fs_info->fs_devices->devices; - list_for_each(cur, devices) { - tmp = list_entry(cur, struct btrfs_device, dev_list); + list_for_each_entry(tmp, devices, dev_list) { if (tmp->in_fs_metadata && !tmp->bdev) { device = tmp; break; @@ -1279,7 +1266,6 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) struct btrfs_trans_handle *trans; struct btrfs_device *device; struct block_device *bdev; - struct list_head *cur; struct list_head *devices; struct super_block *sb = root->fs_info->sb; u64 total_bytes; @@ -1303,8 +1289,7 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) mutex_lock(&root->fs_info->volume_mutex); devices = &root->fs_info->fs_devices->devices; - list_for_each(cur, devices) { - device = list_entry(cur, struct btrfs_device, dev_list); + list_for_each_entry(device, devices, dev_list) { if (device->bdev == bdev) { ret = -EEXIST; goto error; @@ -1703,7 +1688,6 @@ static u64 div_factor(u64 num, int factor) int btrfs_balance(struct btrfs_root *dev_root) { int ret; - struct list_head *cur; struct list_head *devices = &dev_root->fs_info->fs_devices->devices; struct btrfs_device *device; u64 old_size; @@ -1722,8 +1706,7 @@ int btrfs_balance(struct btrfs_root *dev_root) dev_root = dev_root->fs_info->dev_root; /* step one make some room on all the devices */ - list_for_each(cur, devices) { - device = list_entry(cur, struct btrfs_device, dev_list); + list_for_each_entry(device, devices, dev_list) { old_size = device->total_bytes; size_to_free = div_factor(old_size, 1); size_to_free = min(size_to_free, (u64)1 * 1024 * 1024); -- cgit v1.2.3 From 3dfdb9348ada18c74c39b9ae7b115e0594792281 Mon Sep 17 00:00:00 2001 From: Yan Zheng Date: Wed, 21 Jan 2009 10:49:16 -0500 Subject: Btrfs: fix locking issue in btrfs_remove_block_group We should hold the block_group_cache_lock while modifying the block groups red-black tree. Thank you, Signed-off-by: Yan Zheng --- fs/btrfs/extent-tree.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a4e36c38b81..3bed6a7e4b2 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -5952,9 +5952,11 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, path = btrfs_alloc_path(); BUG_ON(!path); - btrfs_remove_free_space_cache(block_group); + spin_lock(&root->fs_info->block_group_cache_lock); rb_erase(&block_group->cache_node, &root->fs_info->block_group_cache_tree); + spin_unlock(&root->fs_info->block_group_cache_lock); + btrfs_remove_free_space_cache(block_group); down_write(&block_group->space_info->groups_sem); list_del(&block_group->list); up_write(&block_group->space_info->groups_sem); -- cgit v1.2.3 From 5a7be515b1f4569aac601170fc681741434cca92 Mon Sep 17 00:00:00 2001 From: Yan Zheng Date: Wed, 21 Jan 2009 10:49:16 -0500 Subject: Btrfs: Fix infinite loop in btrfs_extent_post_op btrfs_extent_post_op calls finish_current_insert and del_pending_extents. They both may enter infinite loops. finish_current_insert enters infinite loop if it only finds some backrefs to update. The fix is to check for pending backref updates before restarting the loop. The infinite loop in del_pending_extents is due to a the skipped variable not being properly reset before looping around. Signed-off-by: Yan Zheng --- fs/btrfs/extent-tree.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 3bed6a7e4b2..aeaec84ebed 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2156,7 +2156,8 @@ again: ret = find_first_extent_bit(&info->extent_ins, search, &start, &end, EXTENT_WRITEBACK); if (ret) { - if (skipped && all && !num_inserts) { + if (skipped && all && !num_inserts && + list_empty(&update_list)) { skipped = 0; search = 0; continue; @@ -2544,6 +2545,7 @@ again: if (ret) { if (all && skipped && !nr) { search = 0; + skipped = 0; continue; } mutex_unlock(&info->extent_ins_mutex); -- cgit v1.2.3 From 653249ff9aea51e1ace6bd437389f06e2b84393f Mon Sep 17 00:00:00 2001 From: Huang Weiyi Date: Wed, 21 Jan 2009 10:49:16 -0500 Subject: Btrfs: remove duplicated #include Removed duplicated #include "compat.h"in fs/btrfs/extent-tree.c Signed-off-by: Huang Weiyi Signed-off-by: Chris Mason --- fs/btrfs/extent-tree.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index aeaec84ebed..c643433629a 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -29,7 +29,6 @@ #include "volumes.h" #include "locking.h" #include "ref-cache.h" -#include "compat.h" #define PENDING_EXTENT_INSERT 0 #define PENDING_EXTENT_DELETE 1 -- cgit v1.2.3 From 95029d7d598babf62276d9006e575992b1333ba5 Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Wed, 21 Jan 2009 10:49:16 -0500 Subject: Btrfs: change/remove typedef Change one typedef to a regular enum, and remove an unused one. Signed-off-by: Jan Engelhardt Signed-off-by: Chris Mason --- fs/btrfs/ctree.h | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index eee060f8811..e1fec636f37 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -454,17 +454,11 @@ struct btrfs_timespec { __le32 nsec; } __attribute__ ((__packed__)); -typedef enum { +enum btrfs_compression_type { BTRFS_COMPRESS_NONE = 0, BTRFS_COMPRESS_ZLIB = 1, BTRFS_COMPRESS_LAST = 2, -} btrfs_compression_type; - -/* we don't understand any encryption methods right now */ -typedef enum { - BTRFS_ENCRYPTION_NONE = 0, - BTRFS_ENCRYPTION_LAST = 1, -} btrfs_encryption_type; +}; struct btrfs_inode_item { /* nfs style generation number */ -- cgit v1.2.3 From 86288a198d8e4e8411ff02f9ab848245e8f11257 Mon Sep 17 00:00:00 2001 From: Yan Zheng Date: Wed, 21 Jan 2009 10:49:16 -0500 Subject: Btrfs: fix stop searching test in replace_one_extent replace_one_extent searches tree leaves for references to a given extent. It stops searching if it goes beyond the last possible position. The last possible position is computed by adding the starting offset of a found file extent to the full size of the extent. The code uses physical size of the extent as the full size. This is incorrect when compression is used. The fix is get the full size from ram_bytes field of file extent item. Signed-off-by: Yan Zheng --- fs/btrfs/extent-tree.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index c643433629a..1d7f043152b 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4440,7 +4440,7 @@ static noinline int replace_one_extent(struct btrfs_trans_handle *trans, u64 lock_end = 0; u64 num_bytes; u64 ext_offset; - u64 first_pos; + u64 search_end = (u64)-1; u32 nritems; int nr_scaned = 0; int extent_locked = 0; @@ -4448,7 +4448,6 @@ static noinline int replace_one_extent(struct btrfs_trans_handle *trans, int ret; memcpy(&key, leaf_key, sizeof(key)); - first_pos = INT_LIMIT(loff_t) - extent_key->offset; if (ref_path->owner_objectid != BTRFS_MULTIPLE_OBJECTIDS) { if (key.objectid < ref_path->owner_objectid || (key.objectid == ref_path->owner_objectid && @@ -4497,7 +4496,7 @@ next: if ((key.objectid > ref_path->owner_objectid) || (key.objectid == ref_path->owner_objectid && key.type > BTRFS_EXTENT_DATA_KEY) || - (key.offset >= first_pos + extent_key->offset)) + key.offset >= search_end) break; } @@ -4530,8 +4529,10 @@ next: num_bytes = btrfs_file_extent_num_bytes(leaf, fi); ext_offset = btrfs_file_extent_offset(leaf, fi); - if (first_pos > key.offset - ext_offset) - first_pos = key.offset - ext_offset; + if (search_end == (u64)-1) { + search_end = key.offset - ext_offset + + btrfs_file_extent_ram_bytes(leaf, fi); + } if (!extent_locked) { lock_start = key.offset; @@ -4720,7 +4721,7 @@ next: } skip: if (ref_path->owner_objectid != BTRFS_MULTIPLE_OBJECTIDS && - key.offset >= first_pos + extent_key->offset) + key.offset >= search_end) break; cond_resched(); -- cgit v1.2.3 From 7e6628544abad773222d8b177f738ac2db1859de Mon Sep 17 00:00:00 2001 From: Qinghuang Feng Date: Wed, 21 Jan 2009 10:49:16 -0500 Subject: Btrfs: open_ctree() error handling can oops on fs_info a bug in open_ctree: struct btrfs_root *open_ctree(..) { .... if (!extent_root || !tree_root || !fs_info || !chunk_root || !dev_root || !csum_root) { err = -ENOMEM; goto fail; //When code flow goes to "fail", fs_info may be NULL or uninitialized. } .... fail: btrfs_close_devices(fs_info->fs_devices);// ! btrfs_mapping_tree_free(&fs_info->mapping_tree);// ! kfree(extent_root); kfree(tree_root); bdi_destroy(&fs_info->bdi);// ! ... ) Signed-off-by: Qinghuang Feng Signed-off-by: Chris Mason --- fs/btrfs/disk-io.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 26a18779e84..3cf17257f89 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1823,13 +1823,14 @@ fail_sb_buffer: fail_iput: invalidate_inode_pages2(fs_info->btree_inode->i_mapping); iput(fs_info->btree_inode); -fail: + btrfs_close_devices(fs_info->fs_devices); btrfs_mapping_tree_free(&fs_info->mapping_tree); + bdi_destroy(&fs_info->bdi); +fail: kfree(extent_root); kfree(tree_root); - bdi_destroy(&fs_info->bdi); kfree(fs_info); kfree(chunk_root); kfree(dev_root); -- cgit v1.2.3 From 7237f1833601dcc435a64176c2c347ec4bd959f9 Mon Sep 17 00:00:00 2001 From: Yan Zheng Date: Wed, 21 Jan 2009 12:54:03 -0500 Subject: Btrfs: fix tree logs parallel sync To improve performance, btrfs_sync_log merges tree log sync requests. But it wrongly merges sync requests for different tree logs. If multiple tree logs are synced at the same time, only one of them actually gets synced. This patch has following changes to fix the bug: Move most tree log related fields in btrfs_fs_info to btrfs_root. This allows merging sync requests separately for each tree log. Don't insert root item into the log root tree immediately after log tree is allocated. Root item for log tree is inserted when log tree get synced for the first time. This allows syncing the log root tree without first syncing all log trees. At tree-log sync, btrfs_sync_log first sync the log tree; then updates corresponding root item in the log root tree; sync the log root tree; then update the super block. Signed-off-by: Yan Zheng --- fs/btrfs/ctree.h | 13 +- fs/btrfs/disk-io.c | 79 +++++++++-- fs/btrfs/disk-io.h | 2 + fs/btrfs/extent-tree.c | 10 +- fs/btrfs/file.c | 4 +- fs/btrfs/tree-log.c | 350 +++++++++++++++++++++++-------------------------- 6 files changed, 248 insertions(+), 210 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index e1fec636f37..de103a8a815 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -695,9 +695,7 @@ struct btrfs_fs_info { struct btrfs_transaction *running_transaction; wait_queue_head_t transaction_throttle; wait_queue_head_t transaction_wait; - wait_queue_head_t async_submit_wait; - wait_queue_head_t tree_log_wait; struct btrfs_super_block super_copy; struct btrfs_super_block super_for_commit; @@ -724,10 +722,6 @@ struct btrfs_fs_info { atomic_t async_submit_draining; atomic_t nr_async_bios; atomic_t async_delalloc_pages; - atomic_t tree_log_writers; - atomic_t tree_log_commit; - unsigned long tree_log_batch; - u64 tree_log_transid; /* * this is used by the balancing code to wait for all the pending @@ -827,7 +821,14 @@ struct btrfs_root { struct kobject root_kobj; struct completion kobj_unregister; struct mutex objectid_mutex; + struct mutex log_mutex; + wait_queue_head_t log_writer_wait; + wait_queue_head_t log_commit_wait[2]; + atomic_t log_writers; + atomic_t log_commit[2]; + unsigned long log_transid; + unsigned long log_batch; u64 objectid; u64 last_trans; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 3cf17257f89..7feac5a475e 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -849,6 +849,14 @@ static int __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize, spin_lock_init(&root->list_lock); mutex_init(&root->objectid_mutex); mutex_init(&root->log_mutex); + init_waitqueue_head(&root->log_writer_wait); + init_waitqueue_head(&root->log_commit_wait[0]); + init_waitqueue_head(&root->log_commit_wait[1]); + atomic_set(&root->log_commit[0], 0); + atomic_set(&root->log_commit[1], 0); + atomic_set(&root->log_writers, 0); + root->log_batch = 0; + root->log_transid = 0; extent_io_tree_init(&root->dirty_log_pages, fs_info->btree_inode->i_mapping, GFP_NOFS); @@ -933,15 +941,16 @@ int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans, return 0; } -int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans, - struct btrfs_fs_info *fs_info) +static struct btrfs_root *alloc_log_tree(struct btrfs_trans_handle *trans, + struct btrfs_fs_info *fs_info) { struct btrfs_root *root; struct btrfs_root *tree_root = fs_info->tree_root; + struct extent_buffer *leaf; root = kzalloc(sizeof(*root), GFP_NOFS); if (!root) - return -ENOMEM; + return ERR_PTR(-ENOMEM); __setup_root(tree_root->nodesize, tree_root->leafsize, tree_root->sectorsize, tree_root->stripesize, @@ -950,12 +959,23 @@ int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans, root->root_key.objectid = BTRFS_TREE_LOG_OBJECTID; root->root_key.type = BTRFS_ROOT_ITEM_KEY; root->root_key.offset = BTRFS_TREE_LOG_OBJECTID; + /* + * log trees do not get reference counted because they go away + * before a real commit is actually done. They do store pointers + * to file data extents, and those reference counts still get + * updated (along with back refs to the log tree). + */ root->ref_cows = 0; - root->node = btrfs_alloc_free_block(trans, root, root->leafsize, - 0, BTRFS_TREE_LOG_OBJECTID, - trans->transid, 0, 0, 0); + leaf = btrfs_alloc_free_block(trans, root, root->leafsize, + 0, BTRFS_TREE_LOG_OBJECTID, + trans->transid, 0, 0, 0); + if (IS_ERR(leaf)) { + kfree(root); + return ERR_CAST(leaf); + } + root->node = leaf; btrfs_set_header_nritems(root->node, 0); btrfs_set_header_level(root->node, 0); btrfs_set_header_bytenr(root->node, root->node->start); @@ -967,7 +987,48 @@ int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans, BTRFS_FSID_SIZE); btrfs_mark_buffer_dirty(root->node); btrfs_tree_unlock(root->node); - fs_info->log_root_tree = root; + return root; +} + +int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans, + struct btrfs_fs_info *fs_info) +{ + struct btrfs_root *log_root; + + log_root = alloc_log_tree(trans, fs_info); + if (IS_ERR(log_root)) + return PTR_ERR(log_root); + WARN_ON(fs_info->log_root_tree); + fs_info->log_root_tree = log_root; + return 0; +} + +int btrfs_add_log_tree(struct btrfs_trans_handle *trans, + struct btrfs_root *root) +{ + struct btrfs_root *log_root; + struct btrfs_inode_item *inode_item; + + log_root = alloc_log_tree(trans, root->fs_info); + if (IS_ERR(log_root)) + return PTR_ERR(log_root); + + log_root->last_trans = trans->transid; + log_root->root_key.offset = root->root_key.objectid; + + inode_item = &log_root->root_item.inode; + inode_item->generation = cpu_to_le64(1); + inode_item->size = cpu_to_le64(3); + inode_item->nlink = cpu_to_le32(1); + inode_item->nbytes = cpu_to_le64(root->leafsize); + inode_item->mode = cpu_to_le32(S_IFDIR | 0755); + + btrfs_set_root_bytenr(&log_root->root_item, log_root->node->start); + btrfs_set_root_generation(&log_root->root_item, trans->transid); + + WARN_ON(root->log_root); + root->log_root = log_root; + root->log_transid = 0; return 0; } @@ -1530,10 +1591,6 @@ struct btrfs_root *open_ctree(struct super_block *sb, init_waitqueue_head(&fs_info->transaction_throttle); init_waitqueue_head(&fs_info->transaction_wait); init_waitqueue_head(&fs_info->async_submit_wait); - init_waitqueue_head(&fs_info->tree_log_wait); - atomic_set(&fs_info->tree_log_commit, 0); - atomic_set(&fs_info->tree_log_writers, 0); - fs_info->tree_log_transid = 0; __setup_root(4096, 4096, 4096, 4096, tree_root, fs_info, BTRFS_ROOT_TREE_OBJECTID); diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index c0ff404c31b..494a56eb298 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -98,5 +98,7 @@ int btrfs_free_log_root_tree(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info); int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info); +int btrfs_add_log_tree(struct btrfs_trans_handle *trans, + struct btrfs_root *root); int btree_lock_page_hook(struct page *page); #endif diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 1d7f043152b..3b26f098094 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2698,13 +2698,9 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, /* if metadata always pin */ if (owner_objectid < BTRFS_FIRST_FREE_OBJECTID) { if (root->root_key.objectid == BTRFS_TREE_LOG_OBJECTID) { - struct btrfs_block_group_cache *cache; - - /* btrfs_free_reserved_extent */ - cache = btrfs_lookup_block_group(root->fs_info, bytenr); - BUG_ON(!cache); - btrfs_add_free_space(cache, bytenr, num_bytes); - put_block_group(cache); + mutex_lock(&root->fs_info->pinned_mutex); + btrfs_update_pinned_extents(root, bytenr, num_bytes, 1); + mutex_unlock(&root->fs_info->pinned_mutex); update_reserved_extents(root, bytenr, num_bytes, 0); return 0; } diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index fbcbf43f511..3e8023efaff 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1214,10 +1214,10 @@ int btrfs_sync_file(struct file *file, struct dentry *dentry, int datasync) } mutex_unlock(&root->fs_info->trans_mutex); - root->fs_info->tree_log_batch++; + root->log_batch++; filemap_fdatawrite(inode->i_mapping); btrfs_wait_ordered_range(inode, 0, (u64)-1); - root->fs_info->tree_log_batch++; + root->log_batch++; /* * ok we haven't committed the transaction yet, lets do a commit diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index d81cda2e077..4f26f3ed0c8 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -77,104 +77,6 @@ static int link_to_fixup_dir(struct btrfs_trans_handle *trans, * and once to do all the other items. */ -/* - * btrfs_add_log_tree adds a new per-subvolume log tree into the - * tree of log tree roots. This must be called with a tree log transaction - * running (see start_log_trans). - */ -static int btrfs_add_log_tree(struct btrfs_trans_handle *trans, - struct btrfs_root *root) -{ - struct btrfs_key key; - struct btrfs_root_item root_item; - struct btrfs_inode_item *inode_item; - struct extent_buffer *leaf; - struct btrfs_root *new_root = root; - int ret; - u64 objectid = root->root_key.objectid; - - leaf = btrfs_alloc_free_block(trans, root, root->leafsize, 0, - BTRFS_TREE_LOG_OBJECTID, - trans->transid, 0, 0, 0); - if (IS_ERR(leaf)) { - ret = PTR_ERR(leaf); - return ret; - } - - btrfs_set_header_nritems(leaf, 0); - btrfs_set_header_level(leaf, 0); - btrfs_set_header_bytenr(leaf, leaf->start); - btrfs_set_header_generation(leaf, trans->transid); - btrfs_set_header_owner(leaf, BTRFS_TREE_LOG_OBJECTID); - - write_extent_buffer(leaf, root->fs_info->fsid, - (unsigned long)btrfs_header_fsid(leaf), - BTRFS_FSID_SIZE); - btrfs_mark_buffer_dirty(leaf); - - inode_item = &root_item.inode; - memset(inode_item, 0, sizeof(*inode_item)); - inode_item->generation = cpu_to_le64(1); - inode_item->size = cpu_to_le64(3); - inode_item->nlink = cpu_to_le32(1); - inode_item->nbytes = cpu_to_le64(root->leafsize); - inode_item->mode = cpu_to_le32(S_IFDIR | 0755); - - btrfs_set_root_bytenr(&root_item, leaf->start); - btrfs_set_root_generation(&root_item, trans->transid); - btrfs_set_root_level(&root_item, 0); - btrfs_set_root_refs(&root_item, 0); - btrfs_set_root_used(&root_item, 0); - - memset(&root_item.drop_progress, 0, sizeof(root_item.drop_progress)); - root_item.drop_level = 0; - - btrfs_tree_unlock(leaf); - free_extent_buffer(leaf); - leaf = NULL; - - btrfs_set_root_dirid(&root_item, 0); - - key.objectid = BTRFS_TREE_LOG_OBJECTID; - key.offset = objectid; - btrfs_set_key_type(&key, BTRFS_ROOT_ITEM_KEY); - ret = btrfs_insert_root(trans, root->fs_info->log_root_tree, &key, - &root_item); - if (ret) - goto fail; - - new_root = btrfs_read_fs_root_no_radix(root->fs_info->log_root_tree, - &key); - BUG_ON(!new_root); - - WARN_ON(root->log_root); - root->log_root = new_root; - - /* - * log trees do not get reference counted because they go away - * before a real commit is actually done. They do store pointers - * to file data extents, and those reference counts still get - * updated (along with back refs to the log tree). - */ - new_root->ref_cows = 0; - new_root->last_trans = trans->transid; - - /* - * we need to make sure the root block for this new tree - * is marked as dirty in the dirty_log_pages tree. This - * is how it gets flushed down to disk at tree log commit time. - * - * the tree logging mutex keeps others from coming in and changing - * the new_root->node, so we can safely access it here - */ - set_extent_dirty(&new_root->dirty_log_pages, new_root->node->start, - new_root->node->start + new_root->node->len - 1, - GFP_NOFS); - -fail: - return ret; -} - /* * start a sub transaction and setup the log tree * this increments the log tree writer count to make the people @@ -184,6 +86,14 @@ static int start_log_trans(struct btrfs_trans_handle *trans, struct btrfs_root *root) { int ret; + + mutex_lock(&root->log_mutex); + if (root->log_root) { + root->log_batch++; + atomic_inc(&root->log_writers); + mutex_unlock(&root->log_mutex); + return 0; + } mutex_lock(&root->fs_info->tree_log_mutex); if (!root->fs_info->log_root_tree) { ret = btrfs_init_log_root_tree(trans, root->fs_info); @@ -193,9 +103,10 @@ static int start_log_trans(struct btrfs_trans_handle *trans, ret = btrfs_add_log_tree(trans, root); BUG_ON(ret); } - atomic_inc(&root->fs_info->tree_log_writers); - root->fs_info->tree_log_batch++; mutex_unlock(&root->fs_info->tree_log_mutex); + root->log_batch++; + atomic_inc(&root->log_writers); + mutex_unlock(&root->log_mutex); return 0; } @@ -212,13 +123,12 @@ static int join_running_log_trans(struct btrfs_root *root) if (!root->log_root) return -ENOENT; - mutex_lock(&root->fs_info->tree_log_mutex); + mutex_lock(&root->log_mutex); if (root->log_root) { ret = 0; - atomic_inc(&root->fs_info->tree_log_writers); - root->fs_info->tree_log_batch++; + atomic_inc(&root->log_writers); } - mutex_unlock(&root->fs_info->tree_log_mutex); + mutex_unlock(&root->log_mutex); return ret; } @@ -228,10 +138,11 @@ static int join_running_log_trans(struct btrfs_root *root) */ static int end_log_trans(struct btrfs_root *root) { - atomic_dec(&root->fs_info->tree_log_writers); - smp_mb(); - if (waitqueue_active(&root->fs_info->tree_log_wait)) - wake_up(&root->fs_info->tree_log_wait); + if (atomic_dec_and_test(&root->log_writers)) { + smp_mb(); + if (waitqueue_active(&root->log_writer_wait)) + wake_up(&root->log_writer_wait); + } return 0; } @@ -1902,26 +1813,65 @@ static int walk_log_tree(struct btrfs_trans_handle *trans, } } btrfs_free_path(path); - if (wc->free) - free_extent_buffer(log->node); return ret; } -static int wait_log_commit(struct btrfs_root *log) +/* + * helper function to update the item for a given subvolumes log root + * in the tree of log roots + */ +static int update_log_root(struct btrfs_trans_handle *trans, + struct btrfs_root *log) +{ + int ret; + + if (log->log_transid == 1) { + /* insert root item on the first sync */ + ret = btrfs_insert_root(trans, log->fs_info->log_root_tree, + &log->root_key, &log->root_item); + } else { + ret = btrfs_update_root(trans, log->fs_info->log_root_tree, + &log->root_key, &log->root_item); + } + return ret; +} + +static int wait_log_commit(struct btrfs_root *root, unsigned long transid) { DEFINE_WAIT(wait); - u64 transid = log->fs_info->tree_log_transid; + int index = transid % 2; + /* + * we only allow two pending log transactions at a time, + * so we know that if ours is more than 2 older than the + * current transaction, we're done + */ do { - prepare_to_wait(&log->fs_info->tree_log_wait, &wait, - TASK_UNINTERRUPTIBLE); - mutex_unlock(&log->fs_info->tree_log_mutex); - if (atomic_read(&log->fs_info->tree_log_commit)) + prepare_to_wait(&root->log_commit_wait[index], + &wait, TASK_UNINTERRUPTIBLE); + mutex_unlock(&root->log_mutex); + if (root->log_transid < transid + 2 && + atomic_read(&root->log_commit[index])) schedule(); - finish_wait(&log->fs_info->tree_log_wait, &wait); - mutex_lock(&log->fs_info->tree_log_mutex); - } while (transid == log->fs_info->tree_log_transid && - atomic_read(&log->fs_info->tree_log_commit)); + finish_wait(&root->log_commit_wait[index], &wait); + mutex_lock(&root->log_mutex); + } while (root->log_transid < transid + 2 && + atomic_read(&root->log_commit[index])); + return 0; +} + +static int wait_for_writer(struct btrfs_root *root) +{ + DEFINE_WAIT(wait); + while (atomic_read(&root->log_writers)) { + prepare_to_wait(&root->log_writer_wait, + &wait, TASK_UNINTERRUPTIBLE); + mutex_unlock(&root->log_mutex); + if (atomic_read(&root->log_writers)) + schedule(); + mutex_lock(&root->log_mutex); + finish_wait(&root->log_writer_wait, &wait); + } return 0; } @@ -1933,57 +1883,114 @@ static int wait_log_commit(struct btrfs_root *log) int btrfs_sync_log(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + int index1; + int index2; int ret; - unsigned long batch; struct btrfs_root *log = root->log_root; + struct btrfs_root *log_root_tree = root->fs_info->log_root_tree; - mutex_lock(&log->fs_info->tree_log_mutex); - if (atomic_read(&log->fs_info->tree_log_commit)) { - wait_log_commit(log); - goto out; + mutex_lock(&root->log_mutex); + index1 = root->log_transid % 2; + if (atomic_read(&root->log_commit[index1])) { + wait_log_commit(root, root->log_transid); + mutex_unlock(&root->log_mutex); + return 0; } - atomic_set(&log->fs_info->tree_log_commit, 1); + atomic_set(&root->log_commit[index1], 1); + + /* wait for previous tree log sync to complete */ + if (atomic_read(&root->log_commit[(index1 + 1) % 2])) + wait_log_commit(root, root->log_transid - 1); while (1) { - batch = log->fs_info->tree_log_batch; - mutex_unlock(&log->fs_info->tree_log_mutex); + unsigned long batch = root->log_batch; + mutex_unlock(&root->log_mutex); schedule_timeout_uninterruptible(1); - mutex_lock(&log->fs_info->tree_log_mutex); - - while (atomic_read(&log->fs_info->tree_log_writers)) { - DEFINE_WAIT(wait); - prepare_to_wait(&log->fs_info->tree_log_wait, &wait, - TASK_UNINTERRUPTIBLE); - mutex_unlock(&log->fs_info->tree_log_mutex); - if (atomic_read(&log->fs_info->tree_log_writers)) - schedule(); - mutex_lock(&log->fs_info->tree_log_mutex); - finish_wait(&log->fs_info->tree_log_wait, &wait); - } - if (batch == log->fs_info->tree_log_batch) + mutex_lock(&root->log_mutex); + wait_for_writer(root); + if (batch == root->log_batch) break; } ret = btrfs_write_and_wait_marked_extents(log, &log->dirty_log_pages); BUG_ON(ret); - ret = btrfs_write_and_wait_marked_extents(root->fs_info->log_root_tree, - &root->fs_info->log_root_tree->dirty_log_pages); + + btrfs_set_root_bytenr(&log->root_item, log->node->start); + btrfs_set_root_generation(&log->root_item, trans->transid); + btrfs_set_root_level(&log->root_item, btrfs_header_level(log->node)); + + root->log_batch = 0; + root->log_transid++; + log->log_transid = root->log_transid; + smp_mb(); + /* + * log tree has been flushed to disk, new modifications of + * the log will be written to new positions. so it's safe to + * allow log writers to go in. + */ + mutex_unlock(&root->log_mutex); + + mutex_lock(&log_root_tree->log_mutex); + log_root_tree->log_batch++; + atomic_inc(&log_root_tree->log_writers); + mutex_unlock(&log_root_tree->log_mutex); + + ret = update_log_root(trans, log); + BUG_ON(ret); + + mutex_lock(&log_root_tree->log_mutex); + if (atomic_dec_and_test(&log_root_tree->log_writers)) { + smp_mb(); + if (waitqueue_active(&log_root_tree->log_writer_wait)) + wake_up(&log_root_tree->log_writer_wait); + } + + index2 = log_root_tree->log_transid % 2; + if (atomic_read(&log_root_tree->log_commit[index2])) { + wait_log_commit(log_root_tree, log_root_tree->log_transid); + mutex_unlock(&log_root_tree->log_mutex); + goto out; + } + atomic_set(&log_root_tree->log_commit[index2], 1); + + if (atomic_read(&log_root_tree->log_commit[(index2 + 1) % 2])) + wait_log_commit(log_root_tree, log_root_tree->log_transid - 1); + + wait_for_writer(log_root_tree); + + ret = btrfs_write_and_wait_marked_extents(log_root_tree, + &log_root_tree->dirty_log_pages); BUG_ON(ret); btrfs_set_super_log_root(&root->fs_info->super_for_commit, - log->fs_info->log_root_tree->node->start); + log_root_tree->node->start); btrfs_set_super_log_root_level(&root->fs_info->super_for_commit, - btrfs_header_level(log->fs_info->log_root_tree->node)); + btrfs_header_level(log_root_tree->node)); + + log_root_tree->log_batch = 0; + log_root_tree->log_transid++; + smp_mb(); + + mutex_unlock(&log_root_tree->log_mutex); + + /* + * nobody else is going to jump in and write the the ctree + * super here because the log_commit atomic below is protecting + * us. We must be called with a transaction handle pinning + * the running transaction open, so a full commit can't hop + * in and cause problems either. + */ + write_ctree_super(trans, root->fs_info->tree_root, 2); - write_ctree_super(trans, log->fs_info->tree_root, 2); - log->fs_info->tree_log_transid++; - log->fs_info->tree_log_batch = 0; - atomic_set(&log->fs_info->tree_log_commit, 0); + atomic_set(&log_root_tree->log_commit[index2], 0); smp_mb(); - if (waitqueue_active(&log->fs_info->tree_log_wait)) - wake_up(&log->fs_info->tree_log_wait); + if (waitqueue_active(&log_root_tree->log_commit_wait[index2])) + wake_up(&log_root_tree->log_commit_wait[index2]); out: - mutex_unlock(&log->fs_info->tree_log_mutex); + atomic_set(&root->log_commit[index1], 0); + smp_mb(); + if (waitqueue_active(&root->log_commit_wait[index1])) + wake_up(&root->log_commit_wait[index1]); return 0; } @@ -2019,37 +2026,17 @@ int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root) start, end, GFP_NOFS); } - log = root->log_root; - ret = btrfs_del_root(trans, root->fs_info->log_root_tree, - &log->root_key); - BUG_ON(ret); + if (log->log_transid > 0) { + ret = btrfs_del_root(trans, root->fs_info->log_root_tree, + &log->root_key); + BUG_ON(ret); + } root->log_root = NULL; - kfree(root->log_root); + free_extent_buffer(log->node); + kfree(log); return 0; } -/* - * helper function to update the item for a given subvolumes log root - * in the tree of log roots - */ -static int update_log_root(struct btrfs_trans_handle *trans, - struct btrfs_root *log) -{ - u64 bytenr = btrfs_root_bytenr(&log->root_item); - int ret; - - if (log->node->start == bytenr) - return 0; - - btrfs_set_root_bytenr(&log->root_item, log->node->start); - btrfs_set_root_generation(&log->root_item, trans->transid); - btrfs_set_root_level(&log->root_item, btrfs_header_level(log->node)); - ret = btrfs_update_root(trans, log->fs_info->log_root_tree, - &log->root_key, &log->root_item); - BUG_ON(ret); - return ret; -} - /* * If both a file and directory are logged, and unlinks or renames are * mixed in, we have a few interesting corners: @@ -2711,11 +2698,6 @@ next_slot: btrfs_free_path(path); btrfs_free_path(dst_path); - - mutex_lock(&root->fs_info->tree_log_mutex); - ret = update_log_root(trans, log); - BUG_ON(ret); - mutex_unlock(&root->fs_info->tree_log_mutex); out: return 0; } -- cgit v1.2.3 From 35054394c4b3cecd52577c2662c84da1f3e73525 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Wed, 21 Jan 2009 13:11:13 -0500 Subject: Btrfs: stop providing a bmap operation to avoid swapfile corruptions Swapfiles use bmap to build a list of extents belonging to the file, and they assume these extents won't change over the life of the file. They also use resulting list to do IO directly to the block device. This causes problems for btrfs in a few ways: btrfs returns logical block numbers through bmap, and these are not suitable for IO. They might translate to different devices, raid etc. COW means that file block mappings are going to change frequently. Using swapfiles on btrfs will lead to corruption, so we're avoiding the problem for now by dropping bmap support entirely. A later commit will add fiemap support for people that really want to know how a file is laid out. Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 45cf03ee1bc..2e25d698bab 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4156,11 +4156,6 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb, return -EINVAL; } -static sector_t btrfs_bmap(struct address_space *mapping, sector_t iblock) -{ - return extent_bmap(mapping, iblock, btrfs_get_extent); -} - int btrfs_readpage(struct file *file, struct page *page) { struct extent_io_tree *tree; @@ -4985,13 +4980,24 @@ static struct extent_io_ops btrfs_extent_io_ops = { .clear_bit_hook = btrfs_clear_bit_hook, }; +/* + * btrfs doesn't support the bmap operation because swapfiles + * use bmap to make a mapping of extents in the file. They assume + * these extents won't change over the life of the file and they + * use the bmap result to do IO directly to the drive. + * + * the btrfs bmap call would return logical addresses that aren't + * suitable for IO and they also will change frequently as COW + * operations happen. So, swapfile + btrfs == corruption. + * + * For now we're avoiding this by dropping bmap. + */ static struct address_space_operations btrfs_aops = { .readpage = btrfs_readpage, .writepage = btrfs_writepage, .writepages = btrfs_writepages, .readpages = btrfs_readpages, .sync_page = block_sync_page, - .bmap = btrfs_bmap, .direct_IO = btrfs_direct_IO, .invalidatepage = btrfs_invalidatepage, .releasepage = btrfs_releasepage, -- cgit v1.2.3 From 1506fcc8189cdd4b95e06df7845a09f18b4526a6 Mon Sep 17 00:00:00 2001 From: Yehuda Sadeh Date: Wed, 21 Jan 2009 14:39:14 -0500 Subject: Btrfs: fiemap support Now that bmap support is gone, this is the only way to get extent mappings for userland. These are still not valid for IO, but they can tell us if a file has holes or how much fragmentation there is. Signed-off-by: Yehuda Sadeh --- fs/btrfs/extent_io.c | 92 ++++++++++++++++++++++++++++++++++++++++++++++++++++ fs/btrfs/extent_io.h | 2 ++ fs/btrfs/inode.c | 7 ++++ 3 files changed, 101 insertions(+) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index c9446d4840e..a3b0676403f 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2854,6 +2854,98 @@ out: return sector; } +int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, + __u64 start, __u64 len, get_extent_t *get_extent) +{ + int ret; + u64 off = start; + u64 max = start + len; + u32 flags = 0; + u64 disko = 0; + struct extent_map *em = NULL; + int end = 0; + u64 em_start = 0, em_len = 0; + unsigned long emflags; + ret = 0; + + if (len == 0) + return -EINVAL; + + lock_extent(&BTRFS_I(inode)->io_tree, start, start + len, + GFP_NOFS); + em = get_extent(inode, NULL, 0, off, max - off, 0); + if (!em) + goto out; + if (IS_ERR(em)) { + ret = PTR_ERR(em); + goto out; + } + while (!end) { + off = em->start + em->len; + if (off >= max) + end = 1; + + em_start = em->start; + em_len = em->len; + + disko = 0; + flags = 0; + + switch (em->block_start) { + case EXTENT_MAP_LAST_BYTE: + end = 1; + flags |= FIEMAP_EXTENT_LAST; + break; + case EXTENT_MAP_HOLE: + flags |= FIEMAP_EXTENT_UNWRITTEN; + break; + case EXTENT_MAP_INLINE: + flags |= (FIEMAP_EXTENT_DATA_INLINE | + FIEMAP_EXTENT_NOT_ALIGNED); + break; + case EXTENT_MAP_DELALLOC: + flags |= (FIEMAP_EXTENT_DELALLOC | + FIEMAP_EXTENT_UNKNOWN); + break; + default: + disko = em->block_start; + break; + } + if (test_bit(EXTENT_FLAG_COMPRESSED, &em->flags)) + flags |= FIEMAP_EXTENT_ENCODED; + + emflags = em->flags; + free_extent_map(em); + em = NULL; + + if (!end) { + em = get_extent(inode, NULL, 0, off, max - off, 0); + if (!em) + goto out; + if (IS_ERR(em)) { + ret = PTR_ERR(em); + goto out; + } + emflags = em->flags; + } + if (test_bit(EXTENT_FLAG_VACANCY, &emflags)) { + flags |= FIEMAP_EXTENT_LAST; + end = 1; + } + + ret = fiemap_fill_next_extent(fieinfo, em_start, disko, + em_len, flags); + if (ret) + goto out_free; + } +out_free: + free_extent_map(em); +out: + unlock_extent(&BTRFS_I(inode)->io_tree, start, start + len, + GFP_NOFS); + return ret; +} + static inline struct page *extent_buffer_page(struct extent_buffer *eb, unsigned long i) { diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index c5b483a7913..e80c6d96b31 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -193,6 +193,8 @@ int extent_commit_write(struct extent_io_tree *tree, unsigned from, unsigned to); sector_t extent_bmap(struct address_space *mapping, sector_t iblock, get_extent_t *get_extent); +int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, + __u64 start, __u64 len, get_extent_t *get_extent); int set_range_dirty(struct extent_io_tree *tree, u64 start, u64 end); int set_state_private(struct extent_io_tree *tree, u64 start, u64 private); int get_state_private(struct extent_io_tree *tree, u64 start, u64 *private); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 2e25d698bab..288c2cdc754 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4156,6 +4156,12 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb, return -EINVAL; } +static int btrfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, + __u64 start, __u64 len) +{ + return extent_fiemap(inode, fieinfo, start, len, btrfs_get_extent); +} + int btrfs_readpage(struct file *file, struct page *page) { struct extent_io_tree *tree; @@ -5021,6 +5027,7 @@ static struct inode_operations btrfs_file_inode_operations = { .removexattr = btrfs_removexattr, .permission = btrfs_permission, .fallocate = btrfs_fallocate, + .fiemap = btrfs_fiemap, }; static struct inode_operations btrfs_special_inode_operations = { .getattr = btrfs_getattr, -- cgit v1.2.3 From a717531942f488209dded30f6bc648167bcefa72 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 22 Jan 2009 09:23:10 -0500 Subject: Btrfs: do less aggressive btree readahead Just before reading a leaf, btrfs scans the node for blocks that are close by and reads them too. It tries to build up a large window of IO looking for blocks that are within a max distance from the top and bottom of the IO window. This patch changes things to just look for blocks within 64k of the target block. It will trigger less IO and make for lower latencies on the read size. Signed-off-by: Chris Mason --- fs/btrfs/ctree.c | 21 +++++---------------- 1 file changed, 5 insertions(+), 16 deletions(-) diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 9e46c077681..2603ee539b7 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1210,8 +1210,7 @@ static noinline void reada_for_search(struct btrfs_root *root, struct btrfs_disk_key disk_key; u32 nritems; u64 search; - u64 lowest_read; - u64 highest_read; + u64 target; u64 nread = 0; int direction = path->reada; struct extent_buffer *eb; @@ -1235,8 +1234,7 @@ static noinline void reada_for_search(struct btrfs_root *root, return; } - highest_read = search; - lowest_read = search; + target = search; nritems = btrfs_header_nritems(node); nr = slot; @@ -1256,24 +1254,15 @@ static noinline void reada_for_search(struct btrfs_root *root, break; } search = btrfs_node_blockptr(node, nr); - if ((search >= lowest_read && search <= highest_read) || - (search < lowest_read && lowest_read - search <= 16384) || - (search > highest_read && search - highest_read <= 16384)) { + if ((search <= target && target - search <= 65536) || + (search > target && search - target <= 65536)) { readahead_tree_block(root, search, blocksize, btrfs_node_ptr_generation(node, nr)); nread += blocksize; } nscan++; - if (path->reada < 2 && (nread > (64 * 1024) || nscan > 32)) + if ((nread > 65536 || nscan > 32)) break; - - if (nread > (256 * 1024) || nscan > 128) - break; - - if (search < lowest_read) - lowest_read = search; - if (search > highest_read) - highest_read = search; } } -- cgit v1.2.3 From a2b7b01c072435b7832ab392167545a1b38cabc3 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 28 Jan 2009 12:47:15 -0500 Subject: ACPI: remove locking from PM1x_STS register reads PM1a_STS and PM1b_STS are twins that get OR'd together on reads, and all writes are repeated to both. The fields in PM1x_STS are single bits only, there are no multi-bit fields. So it is not necessary to lock PM1x_STS reads against writes because it is impossible to read an intermediate value of a single bit. It will either be 0 or 1, even if a write is in progress during the read. Reads are asynchronous to writes no matter if a lock is used or not. Signed-off-by: Len Brown --- drivers/acpi/processor_idle.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 66a9d814556..ae0010821ce 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -447,7 +447,7 @@ static void acpi_processor_idle(void) pr->power.bm_activity <<= diff; - acpi_get_register(ACPI_BITREG_BUS_MASTER_STATUS, &bm_status); + acpi_get_register_unlocked(ACPI_BITREG_BUS_MASTER_STATUS, &bm_status); if (bm_status) { pr->power.bm_activity |= 0x1; acpi_set_register(ACPI_BITREG_BUS_MASTER_STATUS, 1); @@ -1383,7 +1383,7 @@ static int acpi_idle_bm_check(void) { u32 bm_status = 0; - acpi_get_register(ACPI_BITREG_BUS_MASTER_STATUS, &bm_status); + acpi_get_register_unlocked(ACPI_BITREG_BUS_MASTER_STATUS, &bm_status); if (bm_status) acpi_set_register(ACPI_BITREG_BUS_MASTER_STATUS, 1); /* -- cgit v1.2.3 From 89f135d8b53bcccafd91a075366d2704ba257cf3 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Wed, 28 Jan 2009 15:34:27 -0500 Subject: Btrfs: fix readdir on 32 bit machines After btrfs_readdir has gone through all the directory items, it sets the directory f_pos to the largest possible int. This way applications that mix readdir with creating new files don't end up in an endless loop finding the new directory items as they go. It was a workaround for a bug in git, but the assumption was that if git could make this looping mistake than it would be a common problem. The largest possible int chosen was INT_LIMIT(typeof(file->f_pos), and it is possible for that to be a larger number than 32 bit glibc expects to come out of readdir. This patches switches that to INT_LIMIT(off_t), which should keep applications happy on 32 and 64 bit machines. Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 288c2cdc754..2bb65e9b144 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3263,7 +3263,7 @@ skip: /* Reached end of directory/root. Bump pos past the last item. */ if (key_type == BTRFS_DIR_INDEX_KEY) - filp->f_pos = INT_LIMIT(typeof(filp->f_pos)); + filp->f_pos = INT_LIMIT(off_t); else filp->f_pos++; nopos: -- cgit v1.2.3 From 31878dd86b7df9a147f5e6cc6e07092b4308782b Mon Sep 17 00:00:00 2001 From: Len Brown Date: Wed, 28 Jan 2009 18:28:09 -0500 Subject: ACPI: remove BM_RLD access from idle entry path It is true that BM_RLD needs to be set to enable bus master activity to wake an older chipset (eg PIIX4) from C3. This is contrary to the erroneous wording the ACPI 2.0, 3.0 specifications that suggests that BM_RLD is an indicator rather than a control bit. ACPI 1.0's correct wording should be restored in ACPI 4.0: http://www.acpica.org/bugzilla/show_bug.cgi?id=689 But the kernel should not have to clear BM_RLD when entering a non C3-type state just to set it again when entering a C3-type C-state. We should be able to set BM_RLD at boot time and leave it alone -- removing the overhead of accessing this IO register from the idle entry path. Signed-off-by: Len Brown --- drivers/acpi/processor_idle.c | 57 +++++++------------------------------------ 1 file changed, 9 insertions(+), 48 deletions(-) diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index ae0010821ce..7eab733ae96 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -241,26 +241,6 @@ acpi_processor_power_activate(struct acpi_processor *pr, old->promotion.count = 0; new->demotion.count = 0; - /* Cleanup from old state. */ - if (old) { - switch (old->type) { - case ACPI_STATE_C3: - /* Disable bus master reload */ - if (new->type != ACPI_STATE_C3 && pr->flags.bm_check) - acpi_set_register(ACPI_BITREG_BUS_MASTER_RLD, 0); - break; - } - } - - /* Prepare to use new state. */ - switch (new->type) { - case ACPI_STATE_C3: - /* Enable bus master reload */ - if (old->type != ACPI_STATE_C3 && pr->flags.bm_check) - acpi_set_register(ACPI_BITREG_BUS_MASTER_RLD, 1); - break; - } - pr->power.state = new; return; @@ -1121,7 +1101,6 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr, " for C3 to be enabled on SMP systems\n")); return; } - acpi_set_register(ACPI_BITREG_BUS_MASTER_RLD, 0); } /* @@ -1137,6 +1116,15 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr, #else cx->latency_ticks = cx->latency; #endif + /* + * On older chipsets, BM_RLD needs to be set + * in order for Bus Master activity to wake the + * system from C3. Newer chipsets handle DMA + * during C3 automatically and BM_RLD is a NOP. + * In either case, the proper way to + * handle BM_RLD is to set it and leave it set. + */ + acpi_set_register(ACPI_BITREG_BUS_MASTER_RLD, 1); return; } @@ -1399,25 +1387,6 @@ static int acpi_idle_bm_check(void) return bm_status; } -/** - * acpi_idle_update_bm_rld - updates the BM_RLD bit depending on target state - * @pr: the processor - * @target: the new target state - */ -static inline void acpi_idle_update_bm_rld(struct acpi_processor *pr, - struct acpi_processor_cx *target) -{ - if (pr->flags.bm_rld_set && target->type != ACPI_STATE_C3) { - acpi_set_register(ACPI_BITREG_BUS_MASTER_RLD, 0); - pr->flags.bm_rld_set = 0; - } - - if (!pr->flags.bm_rld_set && target->type == ACPI_STATE_C3) { - acpi_set_register(ACPI_BITREG_BUS_MASTER_RLD, 1); - pr->flags.bm_rld_set = 1; - } -} - /** * acpi_idle_do_entry - a helper function that does C2 and C3 type entry * @cx: cstate data @@ -1473,9 +1442,6 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev, return 0; } - if (pr->flags.bm_check) - acpi_idle_update_bm_rld(pr, cx); - t1 = inl(acpi_gbl_FADT.xpm_timer_block.address); acpi_idle_do_entry(cx); t2 = inl(acpi_gbl_FADT.xpm_timer_block.address); @@ -1527,9 +1493,6 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, */ acpi_state_timer_broadcast(pr, cx, 1); - if (pr->flags.bm_check) - acpi_idle_update_bm_rld(pr, cx); - if (cx->type == ACPI_STATE_C3) ACPI_FLUSH_CPU_CACHE(); @@ -1621,8 +1584,6 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, */ acpi_state_timer_broadcast(pr, cx, 1); - acpi_idle_update_bm_rld(pr, cx); - /* * disable bus master * bm_check implies we need ARB_DIS -- cgit v1.2.3 From 334d99072d2b740fa3e0d14e1ac1126805dda2ef Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 22 Jan 2009 00:18:05 +0000 Subject: sh: mach-migor: Enable ov772x and tw9910 in defconfig. This patch updates the Migo-R defconfig to include ov772x camera and tw9910 video driver Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt --- arch/sh/configs/migor_defconfig | 42 ++++++++++++++++++++++++++++++++--------- 1 file changed, 33 insertions(+), 9 deletions(-) diff --git a/arch/sh/configs/migor_defconfig b/arch/sh/configs/migor_defconfig index 7758263514b..678576796bd 100644 --- a/arch/sh/configs/migor_defconfig +++ b/arch/sh/configs/migor_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.28 -# Fri Jan 9 17:09:35 2009 +# Linux kernel version: 2.6.29-rc1 +# Thu Jan 22 09:16:16 2009 # CONFIG_SUPERH=y CONFIG_SUPERH32=y @@ -45,8 +45,12 @@ CONFIG_SYSVIPC_SYSCTL=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_CGROUPS is not set # CONFIG_GROUP_SCHED is not set + +# +# Control Group support +# +# CONFIG_CGROUPS is not set CONFIG_SYSFS_DEPRECATED=y CONFIG_SYSFS_DEPRECATED_V2=y # CONFIG_RELAY is not set @@ -389,6 +393,7 @@ CONFIG_WIRELESS_EXT=y CONFIG_WIRELESS_EXT_SYSFS=y # CONFIG_LIB80211 is not set # CONFIG_MAC80211 is not set +# CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -411,6 +416,7 @@ CONFIG_MTD=y # CONFIG_MTD_DEBUG is not set CONFIG_MTD_CONCAT=y CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_TESTS is not set # CONFIG_MTD_REDBOOT_PARTS is not set CONFIG_MTD_CMDLINE_PARTS=y # CONFIG_MTD_AR7_PARTS is not set @@ -458,9 +464,7 @@ CONFIG_MTD_CFI_UTIL=y # # CONFIG_MTD_COMPLEX_MAPPINGS is not set CONFIG_MTD_PHYSMAP=y -CONFIG_MTD_PHYSMAP_START=0xffffffff -CONFIG_MTD_PHYSMAP_LEN=0 -CONFIG_MTD_PHYSMAP_BANKWIDTH=0 +# CONFIG_MTD_PHYSMAP_COMPAT is not set # CONFIG_MTD_PLATRAM is not set # @@ -487,6 +491,12 @@ CONFIG_MTD_NAND_IDS=y CONFIG_MTD_NAND_PLATFORM=y # CONFIG_MTD_ONENAND is not set +# +# LPDDR flash memory drivers +# +# CONFIG_MTD_LPDDR is not set +# CONFIG_MTD_QINFO_PROBE is not set + # # UBI - Unsorted block images # @@ -587,6 +597,10 @@ CONFIG_SMC91X=y # CONFIG_WLAN_PRE80211 is not set # CONFIG_WLAN_80211 is not set # CONFIG_IWLWIFI_LEDS is not set + +# +# Enable WiMAX (Networking options) to see the WiMAX drivers +# # CONFIG_WAN is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set @@ -761,6 +775,7 @@ CONFIG_SSB_POSSIBLE=y # CONFIG_PMIC_DA903X is not set # CONFIG_MFD_WM8400 is not set # CONFIG_MFD_WM8350_I2C is not set +# CONFIG_MFD_PCF50633 is not set # CONFIG_REGULATOR is not set # @@ -806,9 +821,9 @@ CONFIG_SOC_CAMERA=y # CONFIG_SOC_CAMERA_MT9M111 is not set # CONFIG_SOC_CAMERA_MT9T031 is not set # CONFIG_SOC_CAMERA_MT9V022 is not set -# CONFIG_SOC_CAMERA_TW9910 is not set -CONFIG_SOC_CAMERA_PLATFORM=y -# CONFIG_SOC_CAMERA_OV772X is not set +CONFIG_SOC_CAMERA_TW9910=y +# CONFIG_SOC_CAMERA_PLATFORM is not set +CONFIG_SOC_CAMERA_OV772X=y CONFIG_VIDEO_SH_MOBILE_CEU=y # CONFIG_RADIO_ADAPTERS is not set # CONFIG_DAB is not set @@ -866,11 +881,13 @@ CONFIG_USB_GADGET_SELECTED=y # CONFIG_USB_GADGET_PXA25X is not set # CONFIG_USB_GADGET_PXA27X is not set # CONFIG_USB_GADGET_S3C2410 is not set +# CONFIG_USB_GADGET_IMX is not set CONFIG_USB_GADGET_M66592=y CONFIG_USB_M66592=y CONFIG_SUPERH_BUILT_IN_M66592=y # CONFIG_USB_GADGET_AMD5536UDC is not set # CONFIG_USB_GADGET_FSL_QE is not set +# CONFIG_USB_GADGET_CI13XXX is not set # CONFIG_USB_GADGET_NET2280 is not set # CONFIG_USB_GADGET_GOKU is not set # CONFIG_USB_GADGET_DUMMY_HCD is not set @@ -883,6 +900,11 @@ CONFIG_USB_G_SERIAL=y # CONFIG_USB_MIDI_GADGET is not set # CONFIG_USB_G_PRINTER is not set # CONFIG_USB_CDC_COMPOSITE is not set + +# +# OTG and related infrastructure +# +# CONFIG_USB_GPIO_VBUS is not set # CONFIG_MMC is not set # CONFIG_MEMSTICK is not set # CONFIG_NEW_LEDS is not set @@ -961,6 +983,7 @@ CONFIG_UIO_PDRV_GENIRQ=y CONFIG_FILE_LOCKING=y # CONFIG_XFS_FS is not set # CONFIG_OCFS2_FS is not set +# CONFIG_BTRFS_FS is not set # CONFIG_DNOTIFY is not set # CONFIG_INOTIFY is not set # CONFIG_QUOTA is not set @@ -1004,6 +1027,7 @@ CONFIG_MISC_FILESYSTEMS=y # CONFIG_EFS_FS is not set # CONFIG_JFFS2_FS is not set # CONFIG_CRAMFS is not set +# CONFIG_SQUASHFS is not set # CONFIG_VXFS_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_OMFS_FS is not set -- cgit v1.2.3 From 86746284e20411c66e25bddac391ba821560522b Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 22 Jan 2009 00:33:21 +0000 Subject: sh: ap325rxa: control camera power toggling. Signed-off-by: Kuninori Morimoto Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/boards/board-ap325rxa.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c index caf4c33f4e8..72da416f616 100644 --- a/arch/sh/boards/board-ap325rxa.c +++ b/arch/sh/boards/board-ap325rxa.c @@ -216,6 +216,12 @@ static struct platform_device lcdc_device = { }, }; +static void camera_power(int val) +{ + gpio_set_value(GPIO_PTZ5, val); /* RST_CAM/RSTB */ + mdelay(10); +} + #ifdef CONFIG_I2C static unsigned char camera_ncm03j_magic[] = { @@ -245,9 +251,11 @@ static int camera_set_capture(struct soc_camera_platform_info *info, int ret = 0; int i; + camera_power(0); if (!enable) return 0; /* no disable for now */ + camera_power(1); for (i = 0; i < ARRAY_SIZE(camera_ncm03j_magic); i += 2) { u_int8_t buf[8]; @@ -426,7 +434,7 @@ static int __init ap325rxa_devices_setup(void) gpio_request(GPIO_PTZ6, NULL); gpio_direction_output(GPIO_PTZ6, 0); /* STBY_CAM */ gpio_request(GPIO_PTZ5, NULL); - gpio_direction_output(GPIO_PTZ5, 1); /* RST_CAM */ + gpio_direction_output(GPIO_PTZ5, 0); /* RST_CAM */ gpio_request(GPIO_PTZ4, NULL); gpio_direction_output(GPIO_PTZ4, 0); /* SADDR */ -- cgit v1.2.3 From 7a65d245fa32d937409e2fc30bb24a85488090de Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Thu, 22 Jan 2009 00:38:31 +0000 Subject: sh: ap325rxa: Add ov772x support. This patch add ov772x camera settings to ap325, Old camera is still supported. And it will be 2nd camera if you select ov772x and soc_camera_platform in same time. Signed-off-by: Kuninori Morimoto Signed-off-by: Magnus Damm Signed-off-by: Paul Mundt --- arch/sh/boards/board-ap325rxa.c | 53 ++++++++++++++++++++++++++++++++++++++--- 1 file changed, 50 insertions(+), 3 deletions(-) diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c index 72da416f616..7c35787d29b 100644 --- a/arch/sh/boards/board-ap325rxa.c +++ b/arch/sh/boards/board-ap325rxa.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include