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-rw-r--r--include/asm-s390/cache.h2
-rw-r--r--include/asm-s390/ccwdev.h77
-rw-r--r--include/asm-s390/ccwgroup.h32
-rw-r--r--include/asm-s390/cio.h288
-rw-r--r--include/asm-s390/cmb.h73
-rw-r--r--include/asm-s390/page.h3
-rw-r--r--include/asm-s390/pgtable.h13
-rw-r--r--include/asm-s390/s390_ext.h8
-rw-r--r--include/asm-s390/system.h24
-rw-r--r--include/asm-s390/zcrypt.h4
-rw-r--r--include/linux/blkdev.h14
-rw-r--r--include/linux/blktrace_api.h7
-rw-r--r--include/linux/gfs2_ondisk.h30
-rw-r--r--include/linux/kernel.h14
14 files changed, 354 insertions, 235 deletions
diff --git a/include/asm-s390/cache.h b/include/asm-s390/cache.h
index cdf431b061b..9b866816863 100644
--- a/include/asm-s390/cache.h
+++ b/include/asm-s390/cache.h
@@ -14,8 +14,6 @@
#define L1_CACHE_BYTES 256
#define L1_CACHE_SHIFT 8
-#define ARCH_KMALLOC_MINALIGN 8
-
#define __read_mostly __attribute__((__section__(".data.read_mostly")))
#endif
diff --git a/include/asm-s390/ccwdev.h b/include/asm-s390/ccwdev.h
index 1aeda27d5a8..066aa70518c 100644
--- a/include/asm-s390/ccwdev.h
+++ b/include/asm-s390/ccwdev.h
@@ -67,36 +67,55 @@ ccw_device_id_match(const struct ccw_device_id *array,
return NULL;
}
-/* The struct ccw device is our replacement for the globally accessible
- * ioinfo array. ioinfo will mutate into a subchannel device later.
+/**
+ * struct ccw_device - channel attached device
+ * @ccwlock: pointer to device lock
+ * @id: id of this device
+ * @drv: ccw driver for this device
+ * @dev: embedded device structure
+ * @online: online status of device
+ * @handler: interrupt handler
*
- * Reference: Documentation/s390/driver-model.txt */
+ * @handler is a member of the device rather than the driver since a driver
+ * can have different interrupt handlers for different ccw devices
+ * (multi-subchannel drivers).
+ */
struct ccw_device {
spinlock_t *ccwlock;
+/* private: */
struct ccw_device_private *private; /* cio private information */
- struct ccw_device_id id; /* id of this device, driver_info is
- set by ccw_find_driver */
- struct ccw_driver *drv; /* */
- struct device dev; /* */
+/* public: */
+ struct ccw_device_id id;
+ struct ccw_driver *drv;
+ struct device dev;
int online;
- /* This is sick, but a driver can have different interrupt handlers
- for different ccw_devices (multi-subchannel drivers)... */
void (*handler) (struct ccw_device *, unsigned long, struct irb *);
};
-/* Each ccw driver registers with the ccw root bus */
+/**
+ * struct ccw driver - device driver for channel attached devices
+ * @owner: owning module
+ * @ids: ids supported by this driver
+ * @probe: function called on probe
+ * @remove: function called on remove
+ * @set_online: called when setting device online
+ * @set_offline: called when setting device offline
+ * @notify: notify driver of device state changes
+ * @shutdown: called at device shutdown
+ * @driver: embedded device driver structure
+ * @name: device driver name
+ */
struct ccw_driver {
- struct module *owner; /* for automatic MOD_INC_USE_COUNT */
- struct ccw_device_id *ids; /* probe driver with these devs */
- int (*probe) (struct ccw_device *); /* ask driver to probe dev */
+ struct module *owner;
+ struct ccw_device_id *ids;
+ int (*probe) (struct ccw_device *);
void (*remove) (struct ccw_device *);
- /* device is no longer available */
int (*set_online) (struct ccw_device *);
int (*set_offline) (struct ccw_device *);
int (*notify) (struct ccw_device *, int);
- struct device_driver driver; /* higher level structure, don't init
- this from your driver */
+ void (*shutdown) (struct ccw_device *);
+ struct device_driver driver;
char *name;
};
@@ -124,36 +143,10 @@ extern void ccw_device_clear_options(struct ccw_device *, unsigned long);
/* Allow forced onlining of boxed devices. */
#define CCWDEV_ALLOW_FORCE 0x0008
-/*
- * ccw_device_start()
- *
- * Start a S/390 channel program. When the interrupt arrives, the
- * IRQ handler is called, either immediately, delayed (dev-end missing,
- * or sense required) or never (no IRQ handler registered).
- * Depending on the action taken, ccw_device_start() returns:
- * 0 - Success
- * -EBUSY - Device busy, or status pending
- * -ENODEV - Device not operational
- * -EINVAL - Device invalid for operation
- */
extern int ccw_device_start(struct ccw_device *, struct ccw1 *,
unsigned long, __u8, unsigned long);
-/*
- * ccw_device_start_timeout()
- *
- * This function notifies the device driver if the channel program has not
- * completed during the specified time. If a timeout occurs, the channel
- * program is terminated via xsch(), hsch() or csch().
- */
extern int ccw_device_start_timeout(struct ccw_device *, struct ccw1 *,
unsigned long, __u8, unsigned long, int);
-/*
- * ccw_device_start_key()
- * ccw_device_start_key_timeout()
- *
- * Same as ccw_device_start() and ccw_device_start_timeout(), except a
- * storage key != default key can be provided for the I/O.
- */
extern int ccw_device_start_key(struct ccw_device *, struct ccw1 *,
unsigned long, __u8, __u8, unsigned long);
extern int ccw_device_start_timeout_key(struct ccw_device *, struct ccw1 *,
diff --git a/include/asm-s390/ccwgroup.h b/include/asm-s390/ccwgroup.h
index 925b3ddfa14..7109c7cab87 100644
--- a/include/asm-s390/ccwgroup.h
+++ b/include/asm-s390/ccwgroup.h
@@ -4,19 +4,41 @@
struct ccw_device;
struct ccw_driver;
+/**
+ * struct ccwgroup_device - ccw group device
+ * @creator_id: unique number of the driver
+ * @state: online/offline state
+ * @count: number of attached slave devices
+ * @dev: embedded device structure
+ * @cdev: variable number of slave devices, allocated as needed
+ */
struct ccwgroup_device {
- unsigned long creator_id; /* unique number of the driver */
+ unsigned long creator_id;
enum {
CCWGROUP_OFFLINE,
CCWGROUP_ONLINE,
} state;
+/* private: */
atomic_t onoff;
struct mutex reg_mutex;
- unsigned int count; /* number of attached slave devices */
- struct device dev; /* master device */
- struct ccw_device *cdev[0]; /* variable number, allocate as needed */
+/* public: */
+ unsigned int count;
+ struct device dev;
+ struct ccw_device *cdev[0];
};
+/**
+ * struct ccwgroup_driver - driver for ccw group devices
+ * @owner: driver owner
+ * @name: driver name
+ * @max_slaves: maximum number of slave devices
+ * @driver_id: unique id
+ * @probe: function called on probe
+ * @remove: function called on remove
+ * @set_online: function called when device is set online
+ * @set_offline: function called when device is set offline
+ * @driver: embedded driver structure
+ */
struct ccwgroup_driver {
struct module *owner;
char *name;
@@ -28,7 +50,7 @@ struct ccwgroup_driver {
int (*set_online) (struct ccwgroup_device *);
int (*set_offline) (struct ccwgroup_device *);
- struct device_driver driver; /* this driver */
+ struct device_driver driver;
};
extern int ccwgroup_driver_register (struct ccwgroup_driver *cdriver);
diff --git a/include/asm-s390/cio.h b/include/asm-s390/cio.h
index 1982fb34416..2f08c16e44a 100644
--- a/include/asm-s390/cio.h
+++ b/include/asm-s390/cio.h
@@ -15,30 +15,50 @@
#define LPM_ANYPATH 0xff
#define __MAX_CSSID 0
-/*
- * subchannel status word
+/**
+ * struct scsw - subchannel status word
+ * @key: subchannel key
+ * @sctl: suspend control
+ * @eswf: esw format
+ * @cc: deferred condition code
+ * @fmt: format
+ * @pfch: prefetch
+ * @isic: initial-status interruption control
+ * @alcc: adress-limit checking control
+ * @ssi: supress-suspended interruption
+ * @zcc: zero condition code
+ * @ectl: extended control
+ * @pno: path not operational
+ * @res: reserved
+ * @fctl: function control
+ * @actl: activity control
+ * @stctl: status control
+ * @cpa: channel program address
+ * @dstat: device status
+ * @cstat: subchannel status
+ * @count: residual count
*/
struct scsw {
- __u32 key : 4; /* subchannel key */
- __u32 sctl : 1; /* suspend control */
- __u32 eswf : 1; /* ESW format */
- __u32 cc : 2; /* deferred condition code */
- __u32 fmt : 1; /* format */
- __u32 pfch : 1; /* prefetch */
- __u32 isic : 1; /* initial-status interruption control */
- __u32 alcc : 1; /* address-limit checking control */
- __u32 ssi : 1; /* supress-suspended interruption */
- __u32 zcc : 1; /* zero condition code */
- __u32 ectl : 1; /* extended control */
- __u32 pno : 1; /* path not operational */
- __u32 res : 1; /* reserved */
- __u32 fctl : 3; /* function control */
- __u32 actl : 7; /* activity control */
- __u32 stctl : 5; /* status control */
- __u32 cpa; /* channel program address */
- __u32 dstat : 8; /* device status */
- __u32 cstat : 8; /* subchannel status */
- __u32 count : 16; /* residual count */
+ __u32 key : 4;
+ __u32 sctl : 1;
+ __u32 eswf : 1;
+ __u32 cc : 2;
+ __u32 fmt : 1;
+ __u32 pfch : 1;
+ __u32 isic : 1;
+ __u32 alcc : 1;
+ __u32 ssi : 1;
+ __u32 zcc : 1;
+ __u32 ectl : 1;
+ __u32 pno : 1;
+ __u32 res : 1;
+ __u32 fctl : 3;
+ __u32 actl : 7;
+ __u32 stctl : 5;
+ __u32 cpa;
+ __u32 dstat : 8;
+ __u32 cstat : 8;
+ __u32 count : 16;
} __attribute__ ((packed));
#define SCSW_FCTL_CLEAR_FUNC 0x1
@@ -110,11 +130,22 @@ struct scsw {
#define SNS2_ENV_DATA_PRESENT 0x10
#define SNS2_INPRECISE_END 0x04
+/**
+ * struct ccw1 - channel command word
+ * @cmd_code: command code
+ * @flags: flags, like IDA adressing, etc.
+ * @count: byte count
+ * @cda: data address
+ *
+ * The ccw is the basic structure to build channel programs that perform
+ * operations with the device or the control unit. Only Format-1 channel
+ * command words are supported.
+ */
struct ccw1 {
- __u8 cmd_code; /* command code */
- __u8 flags; /* flags, like IDA addressing, etc. */
- __u16 count; /* byte count */
- __u32 cda; /* data address */
+ __u8 cmd_code;
+ __u8 flags;
+ __u16 count;
+ __u32 cda;
} __attribute__ ((packed,aligned(8)));
#define CCW_FLAG_DC 0x80
@@ -140,102 +171,162 @@ struct ccw1 {
#define SENSE_MAX_COUNT 0x20
+/**
+ * struct erw - extended report word
+ * @res0: reserved
+ * @auth: authorization check
+ * @pvrf: path-verification-required flag
+ * @cpt: channel-path timeout
+ * @fsavf: failing storage address validity flag
+ * @cons: concurrent sense
+ * @scavf: secondary ccw address validity flag
+ * @fsaf: failing storage address format
+ * @scnt: sense count, if @cons == %1
+ * @res16: reserved
+ */
struct erw {
- __u32 res0 : 3; /* reserved */
- __u32 auth : 1; /* Authorization check */
- __u32 pvrf : 1; /* path-verification-required flag */
- __u32 cpt : 1; /* channel-path timeout */
- __u32 fsavf : 1; /* Failing storage address validity flag */
- __u32 cons : 1; /* concurrent-sense */
- __u32 scavf : 1; /* Secondary ccw address validity flag */
- __u32 fsaf : 1; /* Failing storage address format */
- __u32 scnt : 6; /* sense count if cons == 1 */
- __u32 res16 : 16; /* reserved */
+ __u32 res0 : 3;
+ __u32 auth : 1;
+ __u32 pvrf : 1;
+ __u32 cpt : 1;
+ __u32 fsavf : 1;
+ __u32 cons : 1;
+ __u32 scavf : 1;
+ __u32 fsaf : 1;
+ __u32 scnt : 6;
+ __u32 res16 : 16;
} __attribute__ ((packed));
-/*
- * subchannel logout area
+/**
+ * struct sublog - subchannel logout area
+ * @res0: reserved
+ * @esf: extended status flags
+ * @lpum: last path used mask
+ * @arep: ancillary report
+ * @fvf: field-validity flags
+ * @sacc: storage access code
+ * @termc: termination code
+ * @devsc: device-status check
+ * @serr: secondary error
+ * @ioerr: i/o-error alert
+ * @seqc: sequence code
*/
struct sublog {
- __u32 res0 : 1; /* reserved */
- __u32 esf : 7; /* extended status flags */
- __u32 lpum : 8; /* last path used mask */
- __u32 arep : 1; /* ancillary report */
- __u32 fvf : 5; /* field-validity flags */
- __u32 sacc : 2; /* storage access code */
- __u32 termc : 2; /* termination code */
- __u32 devsc : 1; /* device-status check */
- __u32 serr : 1; /* secondary error */
- __u32 ioerr : 1; /* i/o-error alert */
- __u32 seqc : 3; /* sequence code */
+ __u32 res0 : 1;
+ __u32 esf : 7;
+ __u32 lpum : 8;
+ __u32 arep : 1;
+ __u32 fvf : 5;
+ __u32 sacc : 2;
+ __u32 termc : 2;
+ __u32 devsc : 1;
+ __u32 serr : 1;
+ __u32 ioerr : 1;
+ __u32 seqc : 3;
} __attribute__ ((packed));
-/*
- * Format 0 Extended Status Word (ESW)
+/**
+ * struct esw0 - Format 0 Extended Status Word (ESW)
+ * @sublog: subchannel logout
+ * @erw: extended report word
+ * @faddr: failing storage address
+ * @saddr: secondary ccw address
*/
struct esw0 {
- struct sublog sublog; /* subchannel logout */
- struct erw erw; /* extended report word */
- __u32 faddr[2]; /* failing storage address */
- __u32 saddr; /* secondary ccw address */
+ struct sublog sublog;
+ struct erw erw;
+ __u32 faddr[2];
+ __u32 saddr;
} __attribute__ ((packed));
-/*
- * Format 1 Extended Status Word (ESW)
+/**
+ * struct esw1 - Format 1 Extended Status Word (ESW)
+ * @zero0: reserved zeros
+ * @lpum: last path used mask
+ * @zero16: reserved zeros
+ * @erw: extended report word
+ * @zeros: three fullwords of zeros
*/
struct esw1 {
- __u8 zero0; /* reserved zeros */
- __u8 lpum; /* last path used mask */
- __u16 zero16; /* reserved zeros */
- struct erw erw; /* extended report word */
- __u32 zeros[3]; /* 2 fullwords of zeros */
+ __u8 zero0;
+ __u8 lpum;
+ __u16 zero16;
+ struct erw erw;
+ __u32 zeros[3];
} __attribute__ ((packed));
-/*
- * Format 2 Extended Status Word (ESW)
+/**
+ * struct esw2 - Format 2 Extended Status Word (ESW)
+ * @zero0: reserved zeros
+ * @lpum: last path used mask
+ * @dcti: device-connect-time interval
+ * @erw: extended report word
+ * @zeros: three fullwords of zeros
*/
struct esw2 {
- __u8 zero0; /* reserved zeros */
- __u8 lpum; /* last path used mask */
- __u16 dcti; /* device-connect-time interval */
- struct erw erw; /* extended report word */
- __u32 zeros[3]; /* 2 fullwords of zeros */
+ __u8 zero0;
+ __u8 lpum;
+ __u16 dcti;
+ struct erw erw;
+ __u32 zeros[3];
} __attribute__ ((packed));
-/*
- * Format 3 Extended Status Word (ESW)
+/**
+ * struct esw3 - Format 3 Extended Status Word (ESW)
+ * @zero0: reserved zeros
+ * @lpum: last path used mask
+ * @res: reserved
+ * @erw: extended report word
+ * @zeros: three fullwords of zeros
*/
struct esw3 {
- __u8 zero0; /* reserved zeros */
- __u8 lpum; /* last path used mask */
- __u16 res; /* reserved */
- struct erw erw; /* extended report word */
- __u32 zeros[3]; /* 2 fullwords of zeros */
+ __u8 zero0;
+ __u8 lpum;
+ __u16 res;
+ struct erw erw;
+ __u32 zeros[3];
} __attribute__ ((packed));
-/*
- * interruption response block
+/**
+ * struct irb - interruption response block
+ * @scsw: subchannel status word
+ * @esw: extened status word, 4 formats
+ * @ecw: extended control word
+ *
+ * The irb that is handed to the device driver when an interrupt occurs. For
+ * solicited interrupts, the common I/O layer already performs checks whether
+ * a field is valid; a field not being valid is always passed as %0.
+ * If a unit check occured, @ecw may contain sense data; this is retrieved
+ * by the common I/O layer itself if the device doesn't support concurrent
+ * sense (so that the device driver never needs to perform basic sene itself).
+ * For unsolicited interrupts, the irb is passed as-is (expect for sense data,
+ * if applicable).
*/
struct irb {
- struct scsw scsw; /* subchannel status word */
- union { /* extended status word, 4 formats */
+ struct scsw scsw;
+ union {
struct esw0 esw0;
struct esw1 esw1;
struct esw2 esw2;
struct esw3 esw3;
} esw;
- __u8 ecw[32]; /* extended control word */
+ __u8 ecw[32];
} __attribute__ ((packed,aligned(4)));
-/*
- * command information word (CIW) layout
+/**
+ * struct ciw - command information word (CIW) layout
+ * @et: entry type
+ * @reserved: reserved bits
+ * @ct: command type
+ * @cmd: command code
+ * @count: command count
*/
struct ciw {
- __u32 et : 2; /* entry type */
- __u32 reserved : 2; /* reserved */
- __u32 ct : 4; /* command type */
- __u32 cmd : 8; /* command */
- __u32 count : 16; /* coun */
+ __u32 et : 2;
+ __u32 reserved : 2;
+ __u32 ct : 4;
+ __u32 cmd : 8;
+ __u32 count : 16;
} __attribute__ ((packed));
#define CIW_TYPE_RCD 0x0 /* read configuration data */
@@ -258,11 +349,32 @@ struct ciw {
/* Sick revalidation of device. */
#define CIO_REVALIDATE 0x0008
+/**
+ * struct ccw_dev_id - unique identifier for ccw devices
+ * @ssid: subchannel set id
+ * @devno: device number
+ *
+ * This structure is not directly based on any hardware structure. The
+ * hardware identifies a device by its device number and its subchannel,
+ * which is in turn identified by its id. In order to get a unique identifier
+ * for ccw devices across subchannel sets, @struct ccw_dev_id has been
+ * introduced.
+ */
struct ccw_dev_id {
u8 ssid;
u16 devno;
};
+/**
+ * ccw_device_id_is_equal() - compare two ccw_dev_ids
+ * @dev_id1: a ccw_dev_id
+ * @dev_id2: another ccw_dev_id
+ * Returns:
+ * %1 if the two structures are equal field-by-field,
+ * %0 if not.
+ * Context:
+ * any
+ */
static inline int ccw_dev_id_is_equal(struct ccw_dev_id *dev_id1,
struct ccw_dev_id *dev_id2)
{
diff --git a/include/asm-s390/cmb.h b/include/asm-s390/cmb.h
index 021e7c3223e..50196857d27 100644
--- a/include/asm-s390/cmb.h
+++ b/include/asm-s390/cmb.h
@@ -1,29 +1,29 @@
#ifndef S390_CMB_H
#define S390_CMB_H
/**
- * struct cmbdata -- channel measurement block data for user space
+ * struct cmbdata - channel measurement block data for user space
+ * @size: size of the stored data
+ * @elapsed_time: time since last sampling
+ * @ssch_rsch_count: number of ssch and rsch
+ * @sample_count: number of samples
+ * @device_connect_time: time of device connect
+ * @function_pending_time: time of function pending
+ * @device_disconnect_time: time of device disconnect
+ * @control_unit_queuing_time: time of control unit queuing
+ * @device_active_only_time: time of device active only
+ * @device_busy_time: time of device busy (ext. format)
+ * @initial_command_response_time: initial command response time (ext. format)
*
- * @size: size of the stored data
- * @ssch_rsch_count: XXX
- * @sample_count:
- * @device_connect_time:
- * @function_pending_time:
- * @device_disconnect_time:
- * @control_unit_queuing_time:
- * @device_active_only_time:
- * @device_busy_time:
- * @initial_command_response_time:
- *
- * all values are stored as 64 bit for simplicity, especially
+ * All values are stored as 64 bit for simplicity, especially
* in 32 bit emulation mode. All time values are normalized to
* nanoseconds.
* Currently, two formats are known, which differ by the size of
* this structure, i.e. the last two members are only set when
* the extended channel measurement facility (first shipped in
* z990 machines) is activated.
- * Potentially, more fields could be added, which results in a
+ * Potentially, more fields could be added, which would result in a
* new ioctl number.
- **/
+ */
struct cmbdata {
__u64 size;
__u64 elapsed_time;
@@ -41,53 +41,18 @@ struct cmbdata {
};
/* enable channel measurement */
-#define BIODASDCMFENABLE _IO(DASD_IOCTL_LETTER,32)
+#define BIODASDCMFENABLE _IO(DASD_IOCTL_LETTER, 32)
/* enable channel measurement */
-#define BIODASDCMFDISABLE _IO(DASD_IOCTL_LETTER,33)
+#define BIODASDCMFDISABLE _IO(DASD_IOCTL_LETTER, 33)
/* read channel measurement data */
-#define BIODASDREADALLCMB _IOWR(DASD_IOCTL_LETTER,33,struct cmbdata)
+#define BIODASDREADALLCMB _IOWR(DASD_IOCTL_LETTER, 33, struct cmbdata)
#ifdef __KERNEL__
struct ccw_device;
-/**
- * enable_cmf() - switch on the channel measurement for a specific device
- * @cdev: The ccw device to be enabled
- * returns 0 for success or a negative error value.
- *
- * Context:
- * non-atomic
- **/
extern int enable_cmf(struct ccw_device *cdev);
-
-/**
- * disable_cmf() - switch off the channel measurement for a specific device
- * @cdev: The ccw device to be disabled
- * returns 0 for success or a negative error value.
- *
- * Context:
- * non-atomic
- **/
extern int disable_cmf(struct ccw_device *cdev);
-
-/**
- * cmf_read() - read one value from the current channel measurement block
- * @cmf: the channel to be read
- * @index: the name of the value that is read
- *
- * Context:
- * any
- **/
-
extern u64 cmf_read(struct ccw_device *cdev, int index);
-/**
- * cmf_readall() - read one value from the current channel measurement block
- * @cmf: the channel to be read
- * @data: a pointer to a data block that will be filled
- *
- * Context:
- * any
- **/
-extern int cmf_readall(struct ccw_device *cdev, struct cmbdata*data);
+extern int cmf_readall(struct ccw_device *cdev, struct cmbdata *data);
#endif /* __KERNEL__ */
#endif /* S390_CMB_H */
diff --git a/include/asm-s390/page.h b/include/asm-s390/page.h
index f326451ed6e..ceec3826a67 100644
--- a/include/asm-s390/page.h
+++ b/include/asm-s390/page.h
@@ -9,11 +9,12 @@
#ifndef _S390_PAGE_H
#define _S390_PAGE_H
+#include <linux/const.h>
#include <asm/types.h>
/* PAGE_SHIFT determines the page size */
#define PAGE_SHIFT 12
-#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
#define PAGE_DEFAULT_ACC 0
#define PAGE_DEFAULT_KEY (PAGE_DEFAULT_ACC << 4)
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h
index 3208dc6c412..39bb5192dc3 100644
--- a/include/asm-s390/pgtable.h
+++ b/include/asm-s390/pgtable.h
@@ -107,11 +107,18 @@ extern char empty_zero_page[PAGE_SIZE];
* any out-of-bounds memory accesses will hopefully be caught.
* The vmalloc() routines leaves a hole of 4kB between each vmalloced
* area for the same reason. ;)
+ * vmalloc area starts at 4GB to prevent syscall table entry exchanging
+ * from modules.
*/
extern unsigned long vmalloc_end;
-#define VMALLOC_OFFSET (8*1024*1024)
-#define VMALLOC_START (((unsigned long) high_memory + VMALLOC_OFFSET) \
- & ~(VMALLOC_OFFSET-1))
+
+#ifdef CONFIG_64BIT
+#define VMALLOC_ADDR (max(0x100000000UL, (unsigned long) high_memory))
+#else
+#define VMALLOC_ADDR ((unsigned long) high_memory)
+#endif
+#define VMALLOC_OFFSET (8*1024*1024)
+#define VMALLOC_START ((VMALLOC_ADDR + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
#define VMALLOC_END vmalloc_end
/*
diff --git a/include/asm-s390/s390_ext.h b/include/asm-s390/s390_ext.h
index 1e72362cad7..2afc060266a 100644
--- a/include/asm-s390/s390_ext.h
+++ b/include/asm-s390/s390_ext.h
@@ -5,7 +5,7 @@
* include/asm-s390/s390_ext.h
*
* S390 version
- * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Copyright IBM Corp. 1999,2007
* Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com),
* Martin Schwidefsky (schwidefsky@de.ibm.com)
*/
@@ -14,15 +14,11 @@
typedef void (*ext_int_handler_t)(__u16 code);
-/*
- * Warning: if you change ext_int_info_t you have to change the
- * external interrupt handler in entry.S too.
- */
typedef struct ext_int_info_t {
struct ext_int_info_t *next;
ext_int_handler_t handler;
__u16 code;
-} __attribute__ ((packed)) ext_int_info_t;
+} ext_int_info_t;
extern ext_int_info_t *ext_int_hash[];
diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h
index 64a3cd05cae..d866d338555 100644
--- a/include/asm-s390/system.h
+++ b/include/asm-s390/system.h
@@ -130,6 +130,8 @@ extern void pfault_fini(void);
__ret; \
})
+extern void __xchg_called_with_bad_pointer(void);
+
static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
{
unsigned long addr, old;
@@ -150,8 +152,7 @@ static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
: "=&d" (old), "=m" (*(int *) addr)
: "d" (x << shift), "d" (~(255 << shift)), "a" (addr),
"m" (*(int *) addr) : "memory", "cc", "0");
- x = old >> shift;
- break;
+ return old >> shift;
case 2:
addr = (unsigned long) ptr;
shift = (2 ^ (addr & 2)) << 3;
@@ -166,8 +167,7 @@ static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
: "=&d" (old), "=m" (*(int *) addr)
: "d" (x << shift), "d" (~(65535 << shift)), "a" (addr),
"m" (*(int *) addr) : "memory", "cc", "0");
- x = old >> shift;
- break;
+ return old >> shift;
case 4:
asm volatile(
" l %0,0(%3)\n"
@@ -176,8 +176,7 @@ static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
: "=&d" (old), "=m" (*(int *) ptr)
: "d" (x), "a" (ptr), "m" (*(int *) ptr)
: "memory", "cc");
- x = old;
- break;
+ return old;
#ifdef __s390x__
case 8:
asm volatile(
@@ -187,11 +186,11 @@ static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
: "=&d" (old), "=m" (*(long *) ptr)
: "d" (x), "a" (ptr), "m" (*(long *) ptr)
: "memory", "cc");
- x = old;
- break;
+ return old;
#endif /* __s390x__ */
- }
- return x;
+ }
+ __xchg_called_with_bad_pointer();
+ return x;
}
/*
@@ -206,6 +205,8 @@ static inline unsigned long __xchg(unsigned long x, void * ptr, int size)
((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),\
(unsigned long)(n),sizeof(*(ptr))))
+extern void __cmpxchg_called_with_bad_pointer(void);
+
static inline unsigned long
__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
{
@@ -270,7 +271,8 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
return prev;
#endif /* __s390x__ */
}
- return old;
+ __cmpxchg_called_with_bad_pointer();
+ return old;
}
/*
diff --git a/include/asm-s390/zcrypt.h b/include/asm-s390/zcrypt.h
index b90e55888a5..a5dada61775 100644
--- a/include/asm-s390/zcrypt.h
+++ b/include/asm-s390/zcrypt.h
@@ -91,7 +91,7 @@ struct ica_rsa_modexpo_crt {
* VUD block
* key block
*/
-struct ica_CPRBX {
+struct CPRBX {
unsigned short cprb_len; /* CPRB length 220 */
unsigned char cprb_ver_id; /* CPRB version id. 0x02 */
unsigned char pad_000[3]; /* Alignment pad bytes */
@@ -130,7 +130,7 @@ struct ica_CPRBX {
unsigned char cntrl_domain[4];/* Control domain */
unsigned char S390enf_mask[4];/* S/390 enforcement mask */
unsigned char pad_004[36]; /* reserved */
-};
+} __attribute__((packed));
/**
* xcRB
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 95be0ac57e7..5ed888b04b2 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -20,20 +20,6 @@
#include <asm/scatterlist.h>
-#ifdef CONFIG_LBD
-# include <asm/div64.h>
-# define sector_div(a, b) do_div(a, b)
-#else
-# define sector_div(n, b)( \
-{ \
- int _res; \
- _res = (n) % (b); \
- (n) /= (b); \
- _res; \
-} \
-)
-#endif
-
struct scsi_ioctl_command;
struct request_queue;
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index 2e105a12fe2..7e11d23ac36 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -290,12 +290,7 @@ static inline void blk_add_trace_remap(struct request_queue *q, struct bio *bio,
#define blk_add_trace_generic(q, rq, rw, what) do { } while (0)
#define blk_add_trace_pdu_int(q, what, bio, pdu) do { } while (0)
#define blk_add_trace_remap(q, bio, dev, f, t) do {} while (0)
-static inline int do_blk_trace_setup(struct request_queue *q,
- struct block_device *bdev,
- struct blk_user_trace_setup *buts)
-{
- return 0;
-}
+#define do_blk_trace_setup(q, bdev, buts) (-ENOTTY)
#endif /* CONFIG_BLK_DEV_IO_TRACE */
#endif /* __KERNEL__ */
#endif
diff --git a/include/linux/gfs2_ondisk.h b/include/linux/gfs2_ondisk.h
index a44a6a078f0..c3c19f926e6 100644
--- a/include/linux/gfs2_ondisk.h
+++ b/include/linux/gfs2_ondisk.h
@@ -170,6 +170,33 @@ struct gfs2_rgrp {
};
/*
+ * quota linked list: user quotas and group quotas form two separate
+ * singly linked lists. ll_next stores uids or gids of next quotas in the
+ * linked list.
+
+Given the uid/gid, how to calculate the quota file offsets for the corresponding
+gfs2_quota structures on disk:
+
+for user quotas, given uid,
+offset = uid * sizeof(struct gfs2_quota);
+
+for group quotas, given gid,
+offset = (gid * sizeof(struct gfs2_quota)) + sizeof(struct gfs2_quota);
+
+
+ uid:0 gid:0 uid:12 gid:12 uid:17 gid:17 uid:5142 gid:5142
++-------+-------+ +-------+-------+ +-------+- - - -+ +- - - -+-------+
+| valid | valid | :: | valid | valid | :: | valid | inval | :: | inval | valid |
++-------+-------+ +-------+-------+ +-------+- - - -+ +- - - -+-------+
+next:12 next:12 next:17 next:5142 next:NULL next:NULL
+ | | | | |<-- user quota list |
+ \______|___________/ \______|___________/ group quota list -->|
+ | | |
+ \__________________/ \_______________________________________/
+
+*/
+
+/*
* quota structure
*/
@@ -177,7 +204,8 @@ struct gfs2_quota {
__be64 qu_limit;
__be64 qu_warn;
__be64 qu_value;
- __u8 qu_reserved[64];
+ __be32 qu_ll_next; /* location of next quota in list */
+ __u8 qu_reserved[60];
};
/*
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 47160fe378c..d9725a28a26 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -42,6 +42,20 @@ extern const char linux_proc_banner[];
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
+#ifdef CONFIG_LBD
+# include <asm/div64.h>
+# define sector_div(a, b) do_div(a, b)
+#else
+# define sector_div(n, b)( \
+{ \
+ int _res; \
+ _res = (n) % (b); \
+ (n) /= (b); \
+ _res; \
+} \
+)
+#endif
+
/**
* upper_32_bits - return bits 32-63 of a number
* @n: the number we're accessing
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 02:19:51 +0000