aboutsummaryrefslogtreecommitdiff
path: root/drivers
AgeCommit message (Collapse)Author
2006-12-12Jon needs a new shift key.Dave Jones
Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-12-12kconfig: Standardize "depends" -> "depends on" in Kconfig filesRobert P. J. Day
Standardize the miniscule percentage of occurrences of "depends" in Kconfig files to "depends on", and update kconfig-language.txt to reflect that. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-12-12e100: replace kmalloc with kcallocYan Burman
Replace kmalloc+memset with kcalloc Signed-off-by: Yan Burman <burman.yan@gmail.com> Acked-By: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-12-12Fix small typo in drivers/serial/icom.cThomas Hisch
Signed-off-by: Thomas Hisch <t.hisch@gmail.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-12-12[PATCH] remove blk_queue_activity_fnBoaz Harrosh
While working on bidi support at struct request level I have found that blk_queue_activity_fn is actually never used. The only user is in ide-probe.c with this code: /* enable led activity for disk drives only */ if (drive->media == ide_disk && hwif->led_act) blk_queue_activity_fn(q, hwif->led_act, drive); And led_act is never initialized anywhere. (Looking back at older kernels it was used in the PPC arch, but was removed around 2.6.18) Unless it is all for future use off course. (this patch is against linux-2.6-block.git as off 2006/12/4) Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2006-12-11Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (32 commits) [NETPOLL]: Fix local_bh_enable() warning. [IPVS]: Make ip_vs_sync.c <= 80col wide. [IPVS]: Use msleep_interruptable() instead of ssleep() aka msleep() [HAMRADIO]: Fix baycom_epp.c compile failure. [DCCP]: Whitespace cleanups [DCCP] ccid3: Fixup some type conversions related to rtts [DCCP] ccid3: BUG-FIX - conversion errors [DCCP] ccid3: Reorder packet history source file [DCCP] ccid3: Reorder packet history header file [DCCP] ccid3: Make debug output consistent [DCCP] ccid3: Perform history operations only after packet has been sent [DCCP] ccid3: TX history - remove unused field [DCCP] ccid3: Shift window counter computation [DCCP] ccid3: Sanity-check RTT samples [DCCP] ccid3: Initialise RTT values [DCCP] ccid: Deprecate ccid_hc_tx_insert_options [DCCP]: Warn when discarding packet due to internal errors [DCCP]: Only deliver to the CCID rx side in charge [DCCP]: Simplify TFRC calculation [DCCP]: Debug timeval operations ...
2006-12-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (36 commits) [POWERPC] Generic BUG for powerpc [PPC] Fix compile failure do to introduction of PHY_POLL [POWERPC] Only export __mtdcr/__mfdcr if CONFIG_PPC_DCR is set [POWERPC] Remove old dcr.S [POWERPC] Fix SPU coredump code for max_fdset removal [POWERPC] Fix irq routing on some 32-bit PowerMacs [POWERPC] ps3: Add vuart support [POWERPC] Support ibm,dynamic-reconfiguration-memory nodes [POWERPC] dont allow pSeries_probe to succeed without initialising MMU [POWERPC] micro optimise pSeries_probe [POWERPC] Add SPURR SPR to sysfs [POWERPC] Add DSCR SPR to sysfs [POWERPC] Fix 440SPe CPU table entry [POWERPC] Add support for FP emulation for the e300c2 core [POWERPC] of_device_register: propagate device_create_file return code [POWERPC] Fix mmap of PCI resource with hack for X [POWERPC] iSeries: head_64.o needs to depend on lparmap.s [POWERPC] cbe_thermal: Fix initialization of sysfs attribute_group [POWERPC] Remove QE header files from lite5200.c [POWERPC] of_platform_make_bus_id(): make `magic' int ...
2006-12-11[HAMRADIO]: Fix baycom_epp.c compile failure.Ralf Baechle
Fix foobar in 15b1c0e822f578306332d4f4c449250db5c5dceb and e8cc49bb0fdb9e18a99e6780073d1400ba2b0d1f patch series. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-11[ATM]: Ignore generated file pca200e_ecd.bin2Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-11[NET]: Fix WAN routers kconfig dependency.Randy Dunlap
Currently WAN router drivers can be built in-kernel while the register/unregister_wan_device interfaces are built as modules. This causes: drivers/built-in.o: In function `cycx_init': cycx_main.c:(.init.text+0x5c4b): undefined reference to `register_wan_device' drivers/built-in.o: In function `cycx_exit': cycx_main.c:(.exit.text+0x560): undefined reference to `unregister_wan_device' make: *** [.tmp_vmlinux1] Error 1 The problem is caused by tristate -> bool conversion (y or m => y), so convert WAN_ROUTER_DRIVERS to a tristate so that the correct dependency is preserved. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-11Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: AT91 MMC update for 2.6.19 mmc: Change SDHCI iomem error to a warning mmc: fix "prev->state: 2 != TASK_RUNNING??" problem on SD/MMC card removal AT91 MMC 5 : Minor cleanups AT91 MMC 4 : Interrupt handler cleanup AT91 MMC 3 : Move global mci_clk variable AT91 MMC 2 : Use platform resources AT91 MMC 1: Pass host structure.
2006-12-11[PATCH] smc91x: Kill off excessive versatile hooks.Paul Mundt
This looks like a result of too many auto-merges. The CONFIG_ARCH_VERSATILE case was handled a total of 6 times. This kills 5 of them. Signed-off-by: Paul Mundt <lethal@linux-sh.org> -- drivers/net/smc91x.h | 90 --------------------------------------------------- 1 file changed, 90 deletions(-) Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11[PATCH] myri10ge: update driver version to 1.1.0Brice Goglin
Update driver version to 1.1.0. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11[PATCH] myri10ge: fix big_bytes in case of vlan framesBrice Goglin
Fix sizing of big_bytes in the case of vlan frames. The 4 VLAN_HLEN bytes were omitted, leading to sizing the big buffer 4 bytes smaller than it should be. Due to how rx buffers are carved from pages, this was harmless for the common (9000, 1500) byte MTUs, but could lead to data corruption for some MTUs. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11[PATCH] myri10ge: Full vlan frame in small_bytesBrice Goglin
Receive full vlan frames into smalls when running with a jumbo MTU. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11[PATCH] myri10ge: drop contiguous skb routinesBrice Goglin
Drop the old routines that used the physically contigous skb now that we use the physical pages. And rename myri10ge_page_rx_done() to myri10ge_rx_done() as it was previously. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11[PATCH] myri10ge: switch to page-based skbBrice Goglin
Switch to physical page skb, by calling the new page-based allocation routines and using myri10ge_page_rx_done(). Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11[PATCH] myri10ge: add page-based skb routinesBrice Goglin
Add physical page skb allocation routines and page based rx_done, to be used by upcoming patches. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11[PATCH] myri10ge: indentation cleanupsBrice Goglin
Indentation cleanups to synchronize to our tree which is automatically indent'ed. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11[PATCH] chelsio: working NAPIStephen Hemminger
This driver tries to enable/disable NAPI at runtime, but does so in an unsafe manner, and the NAPI interrupt handling is a mess. Replace it with a compile time selected NAPI implementation. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11[PATCH] MACB: Use __raw register accessHaavard Skinnemoen
Since macb is a chip-internal device, use __raw_readl and __raw_writel instead of readl/writel. This will perform native-endian accesses, which is the right thing to do on both AVR32 and ARM devices. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11[PATCH] MACB: Use struct delayed_work instead of struct work_structHaavard Skinnemoen
The macb driver calls schedule_delayed_work() and friends, so we need to use a struct delayed_work along with it. The conversion was explained by David Howells on lkml Dec 5 2006: http://lkml.org/lkml/2006/12/5/269 Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11[PATCH] ucc_geth: Initialize mdio_lock.Scott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11[PATCH] ucc_geth: compilation error fixesScott Wood
Fix compilation failures when building the ucc_geth driver with spinlock debugging. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-11AT91 MMC update for 2.6.19Andrew Victor
The driver is usable on the newer SAM9 processors so replace all text references to AT91RM9200 with just AT91. The controller bug where all the words are byte-swapped is fixed on the AT91SAM9 processors. The byte-swapping work-around therefore only needs to be done if cpu_is_at91rm9200(). [Original patch from Wojtek Kaniewski] The AT91RM9200 and AT91SAM9260 processors support two MMC/SD slots - the slot which is connected is now passed via the platform_data and the correct slot selected in the AT91_MCI_SDCR register. The driver should not be calling at91_set_gpio_output() since the VCC pin should have already been configured as an output in the processor/board setup code. The driver should call at91_set_gpio_value(). Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11mmc: Change SDHCI iomem error to a warningPierre Ossman
Some controllers report an invalid iomem size, but seem to work correctly anyway. Change our current error to just a warning and hope it doesn't cause too much problems. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11mmc: fix "prev->state: 2 != TASK_RUNNING??" problem on SD/MMC card removalVitaly Wool
Currently on SD/MMC card removal the system exhibits the following message (the platform is ARM Versatile): prev->state: 2 != TASK_RUNNING?? mmcqd/762[CPU#0]: BUG in __schedule at linux-2.6/kernel/sched.c:3826 (akpm: someone tried to fix this, but it's still wrong) Signed-off-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11AT91 MMC 5 : Minor cleanupsAndrew Victor
A number of small cleanups to the AT91RM9200 MMC driver: - fix warnings generated by pr_debug(). - prepend "AT91 MMC:" to printk() messages. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11AT91 MMC 4 : Interrupt handler cleanupAndrew Victor
This patch simplifies the AT91RM9200 MMC interrupt handler code so that it doesn't re-read the Interrupt Status and Interrupt Mask registers multiple times. Also defined AT91_MCI_ERRORS instead of using the hard-coded 0xffff0000. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11AT91 MMC 3 : Move global mci_clk variableAndrew Victor
Move the global 'mci_clk' variable into the local 'at91mci_host' structure. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11AT91 MMC 2 : Use platform resourcesAndrew Victor
Use the I/O base-address and IRQ passed to the driver via the platform_device resources instead of using hardcoded values. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11AT91 MMC 1: Pass host structure.Andrew Victor
The I/O base address is now stored in the 'at91mci_host' structure. We therefore have to pass this structure to at91_mci_read() and at91_mci_write(). Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2006-12-11[POWERPC] ps3: Add vuart supportGeoff Levand
Adds support for the PS3 virtual UART (vuart). The vuart provides a bi-directional byte stream data link between logical partitions. This is needed for the ps3 graphics driver and the ps3 power control support to be able to communicate with the lv1 policy module. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-10[CRYPTO] dm-crypt: Select CRYPTO_CBCHerbert Xu
As CBC is the default chaining method for cryptoloop, we should select it from cryptoloop to ease the transition. Spotted by Rene Herman. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10Merge branch 'master' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (132 commits) V4L/DVB 4949b: Fix container_of pointer retreival V4L/DVB (4949a): Fix INIT_WORK V4L/DVB (4949): Cxusb: codingstyle cleanups V4L/DVB (4948): Cxusb: Convert tuner functions to use dvb_pll_attach V4L/DVB (4947): Cx88: trivial cleanups V4L/DVB (4946): Cx88: Move cx88_dvb_bus_ctrl out of the card-specific area V4L/DVB (4945): Cx88: consolidate cx22702_config structs V4L/DVB (4944): Cx88: Convert DViCO FusionHDTV Hybrid to use dvb_pll_attach V4L/DVB (4943): Cx88: cleanup dvb_pll_attach for lgdt3302 tuners V4L/DVB (4953): Usbvision minor fixes V4L/DVB (4951): Add version.h, since it is required for VIDIOC_QUERYCAP V4L/DVB (4940): Or51211: Changed SNR and signal strength calculations V4L/DVB (4939): Or51132: Changed SNR and signal strength reporting V4L/DVB (4938): Cx88: Convert lgdt3302 tuning function to use dvb_pll_attach V4L/DVB (4941): Remove LINUX_VERSION_CODE and fix identations V4L/DVB (4942): Whitespace cleanups V4L/DVB (4937): Usbvision cleanup and code reorganization V4L/DVB (4936): Make MT4049FM5 tuner to set FM Gain to Normal V4L/DVB (4935): Added the capability of selecting fm gain by tuner V4L/DVB (4934): Usbvision radio requires GainNormal at e register ...
2006-12-10[PATCH] kvm: userspace interfaceAvi Kivity
web site: http://kvm.sourceforge.net mailing list: kvm-devel@lists.sourceforge.net (http://lists.sourceforge.net/lists/listinfo/kvm-devel) The following patchset adds a driver for Intel's hardware virtualization extensions to the x86 architecture. The driver adds a character device (/dev/kvm) that exposes the virtualization capabilities to userspace. Using this driver, a process can run a virtual machine (a "guest") in a fully virtualized PC containing its own virtual hard disks, network adapters, and display. Using this driver, one can start multiple virtual machines on a host. Each virtual machine is a process on the host; a virtual cpu is a thread in that process. kill(1), nice(1), top(1) work as expected. In effect, the driver adds a third execution mode to the existing two: we now have kernel mode, user mode, and guest mode. Guest mode has its own address space mapping guest physical memory (which is accessible to user mode by mmap()ing /dev/kvm). Guest mode has no access to any I/O devices; any such access is intercepted and directed to user mode for emulation. The driver supports i386 and x86_64 hosts and guests. All combinations are allowed except x86_64 guest on i386 host. For i386 guests and hosts, both pae and non-pae paging modes are supported. SMP hosts and UP guests are supported. At the moment only Intel hardware is supported, but AMD virtualization support is being worked on. Performance currently is non-stellar due to the naive implementation of the mmu virtualization, which throws away most of the shadow page table entries every context switch. We plan to address this in two ways: - cache shadow page tables across tlb flushes - wait until AMD and Intel release processors with nested page tables Currently a virtual desktop is responsive but consumes a lot of CPU. Under Windows I tried playing pinball and watching a few flash movies; with a recent CPU one can hardly feel the virtualization. Linux/X is slower, probably due to X being in a separate process. In addition to the driver, you need a slightly modified qemu to provide I/O device emulation and the BIOS. Caveats (akpm: might no longer be true): - The Windows install currently bluescreens due to a problem with the virtual APIC. We are working on a fix. A temporary workaround is to use an existing image or install through qemu - Windows 64-bit does not work. That's also true for qemu, so it's probably a problem with the device model. [bero@arklinux.org: build fix] [simon.kagstrom@bth.se: build fix, other fixes] [uril@qumranet.com: KVM: Expose interrupt bitmap] [akpm@osdl.org: i386 build fix] [mingo@elte.hu: i386 fixes] [rdreier@cisco.com: add log levels to all printks] [randy.dunlap@oracle.com: Fix sparse NULL and C99 struct init warnings] [anthony@codemonkey.ws: KVM: AMD SVM: 32-bit host support] Signed-off-by: Yaniv Kamay <yaniv@qumranet.com> Signed-off-by: Avi Kivity <avi@qumranet.com> Cc: Simon Kagstrom <simon.kagstrom@bth.se> Cc: Bernhard Rosenkraenzer <bero@arklinux.org> Signed-off-by: Uri Lublin <uril@qumranet.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Anthony Liguori <anthony@codemonkey.ws> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] clocksource: small cleanupDaniel Walker
Mostly changing alignment. Just some general cleanup. [akpm@osdl.org: build fix] Signed-off-by: Daniel Walker <dwalker@mvista.com> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] md: assorted md and raid1 one-linersNeilBrown
Fix few bugs that meant that: - superblocks weren't alway written at exactly the right time (this could show up if the array was not written to - writting to the array causes lots of superblock updates and so hides these errors). - restarting device recovery after a clean shutdown (version-1 metadata only) didn't work as intended (or at all). 1/ Ensure superblock is updated when a new device is added. 2/ Remove an inappropriate test on MD_RECOVERY_SYNC in md_do_sync. The body of this if takes one of two branches depending on whether MD_RECOVERY_SYNC is set, so testing it in the clause of the if is wrong. 3/ Flag superblock for updating after a resync/recovery finishes. 4/ If we find the neeed to restart a recovery in the middle (version-1 metadata only) make sure a full recovery (not just as guided by bitmaps) does get done. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] md: return a non-zero error to bi_end_io as appropriate in raid5NeilBrown
Currently raid5 depends on clearing the BIO_UPTODATE flag to signal an error to higher levels. While this should be sufficient, it is safer to explicitly set the error code as well - less room for confusion. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] md: remove some old ifdefed-out code from raid5.cNeilBrown
There are some vestiges of old code that was used for bypassing the stripe cache on reads in raid5.c. This was never updated after the change from buffer_heads to bios, but was left as a reminder. That functionality has nowe been implemented in a completely different way, so the old code can go. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] MD: conditionalize some codeJeff Garzik
The autorun code is only used if this module is built into the static kernel image. Adjust #ifdefs accordingly. Signed-off-by: Jeff Garzik <jeff@garzik.org> Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] md: fix innocuous bug in raid6 stripe_to_pdidxNeilBrown
stripe_to_pdidx finds the index of the parity disk for a given stripe. It assumes raid5 in that it uses "disks-1" to determine the number of data disks. This is incorrect for raid6 but fortunately the two usages cancel each other out. The only way that 'data_disks' affects the calculation of pd_idx in raid5_compute_sector is when it is divided into the sector number. But as that sector number is calculated by multiplying in the wrong value of 'data_disks' the division produces the right value. So it is innocuous but needs to be fixed. Also change the calculation of raid_disks in compute_blocknr to make it more obviously correct (it seems at first to always use disks-1 too). Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] md: enable bypassing cache for readsRaz Ben-Jehuda(caro)
Call the chunk_aligned_read where appropriate. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] md: allow reads that have bypassed the cache to be retried on failureRaz Ben-Jehuda(caro)
If a bypass-the-cache read fails, we simply try again through the cache. If it fails again it will trigger normal recovery precedures. update 1: From: NeilBrown <neilb@suse.de> 1/ chunk_aligned_read and retry_aligned_read assume that data_disks == raid_disks - 1 which is not true for raid6. So when an aligned read request bypasses the cache, we can get the wrong data. 2/ The cloned bio is being used-after-free in raid5_align_endio (to test BIO_UPTODATE). 3/ We forgot to add rdev->data_offset when submitting a bio for aligned-read 4/ clone_bio calls blk_recount_segments and then we change bi_bdev, so we need to invalidate the segment counts. 5/ We don't de-reference the rdev when the read completes. This means we need to record the rdev to so it is still available in the end_io routine. Fortunately bi_next in the original bio is unused at this point so we can stuff it in there. 6/ We leak a cloned bio if the target rdev is not usable. From: NeilBrown <neilb@suse.de> update 2: 1/ When aligned requests fail (read error) they need to be retried via the normal method (stripe cache). As we cannot be sure that we can process a single read in one go (we may not be able to allocate all the stripes needed) we store a bio-being-retried and a list of bioes-that-still-need-to-be-retried. When find a bio that needs to be retried, we should add it to the list, not to single-bio... 2/ We were never incrementing 'scnt' when resubmitting failed aligned requests. [akpm@osdl.org: build fix] Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] md: handle bypassing the read cache (assuming nothing fails)Raz Ben-Jehuda(caro)
Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] md: define raid5_mergeable_bvecRaz Ben-Jehuda(caro)
This will encourage read request to be on only one device, so we will often be able to bypass the cache for read requests. Signed-off-by: Neil Brown <neilb@suse.de> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] md: tidy up device-change notification when an md array is stoppedNeilBrown
An md array can be stopped leaving all the setting still in place, or it can torn down and destroyed. set_capacity and other change notifications only happen in the latter case, but should happen in both. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] Fbdev driver for IBM GXT4500P videocardsPaul Mackerras
This is an fbdev driver for the IBM GXT4500P display card found in some IBM System P (pSeries) machines. These cards have hardware 2D and 3D capabilities, but the driver does not use them; it just exports a dumb framebuffer. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: James Simmons <jsimmons@infradead.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] ide-cd: Handle strange interrupt on the Intel ESB2Alan Cox
The ESB2 appears to emit spurious DMA interrupts when configured for native mode and handling ATAPI devices. Stratus were able to pin this bug down and produce a patch. This is a rework which applies the fixup only to the ESB2 (for now). We can apply it to other chips later if the same problem is found. This code has been tested and confirmed to fix the problem on the tested systems. Signed-off-by: Alan Cox <alan@redhat.com> (Most of the hard work done by Stratus however) Cc: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10[PATCH] Don't build some broken ISDN drivers on big endian MIPSRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>