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2009-04-30x86: move per-cpu mmu_gathers to mm/init.cPekka Enberg
[ Impact: cleanup ] Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> LKML-Reference: <1240923650.1982.22.camel@penberg-laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-30x86: move max_pfn_mapped and max_low_pfn_mapped to setup.cPekka Enberg
This patch moves the max_pfn_mapped and max_low_pfn_mapped global variables to kernel/setup.c where they're initialized. [ Impact: cleanup ] Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> LKML-Reference: <1240923649.1982.21.camel@penberg-laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-21x86: unify noexec handlingPekka Enberg
This patch unifies noexec handling on 32-bit and 64-bit. [ Impact: cleanup ] Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> [ mingo@elte.hu: build fix ] LKML-Reference: <1240303167.771.69.camel@penberg-laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-21Merge branch 'linus' into x86/mmIngo Molnar
Merge reason: refresh the topic: there's been 290 non-merges commits upstream to arch/x86 alone. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-20Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM/Suspend: Introduce two new platform callbacks to avoid breakage
2009-04-20Merge branch 'drm-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: agp: zero pages before sending to userspace drm: check for minor master before allowing drop master. drm: set/clear is_master when master changed drm: clean dirty memory after device release drm: count reaches -1
2009-04-20Merge branch 'for-linus' of git://neil.brown.name/mdLinus Torvalds
* 'for-linus' of git://neil.brown.name/md: md: support bitmaps on RAID10 arrays larger then 2 terabytes md: update sync_completed and reshape_position even more often. md: improve usefulness and accuracy of sysfs file md/sync_completed. md: allow setting newly added device to 'in_sync' via sysfs. md: tiny md.h cleanups
2009-04-20FS-Cache: Add MAINTAINERS record for FS-Cache and CacheFilesDavid Howells
Add MAINTAINERS record for FS-Cache and CacheFiles. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-20FRV: Don't attempt to #include <linux/blk.h> as it doesn't existDavid Howells
Stop the FRV arch from attempting to #include <linux/blk.h> as it doesn't exist. Reported-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-20driver: dont update dev_name via device_add pathKay Sievers
notice one system /proc/iomem some entries missed the name for pci_devices it turns that dev->dev.kobj name is changed after device_add. for pci code: via acpi_pci_root_driver.ops.add (aka acpi_pci_root_add) ==> pci_acpi_scan_root is used to scan pci bus/device, and at the same time we read the resource for pci_dev in the pci_read_bases, we have res->name = pci_name(pci_dev); pci_name is calling dev_name. later via acpi_pci_root_driver.ops.start (aka acpi_pci_root_start) ==> pci_bus_add_device to add all pci_dev in kobj tree. pci_bus_add_device will call device_add. actually in device_add /* first, register with generic layer. */ error = kobject_add(&dev->kobj, dev->kobj.parent, "%s", dev_name(dev)); if (error) goto Error; will get one new name for that kobj, old name is freed. [Impact: fix corrupted names in /proc/iomem ] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-20md: support bitmaps on RAID10 arrays larger then 2 terabytesNeilBrown
.. and other arrays with components larger than 2 terabytes. We use a "long" rather than a "sector_t" in part of the bitmap size calculations, which is sad. Reported-by: "Mario 'BitKoenig' Holbe" <Mario.Holbe@TU-Ilmenau.DE> Signed-off-by: NeilBrown <neilb@suse.de>
2009-04-20agp: zero pages before sending to userspaceShaohua Li
AGP pages might be mapped into userspace finally, so the pages should be set to zero before userspace can use it. Otherwise there is potential information leakage. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-04-20drm: check for minor master before allowing drop master.Dave Airlie
When fast user switching a lot eventually we get to the point, where we were checking for the wrong thing in this function. Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-04-20drm: set/clear is_master when master changedJonas Bonn
The variable is_master is being used to track the drm_file that is currently master, so its value needs to be updated accordingly when the master is changed. Signed-off-by: Jonas Bonn <jonas@southpole.se> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-04-20drm: clean dirty memory after device releaseMa Ling
In current code we register/unregister connector object by drm_sysfs_connector_add/remove function. However under some cases, we need to dynamically register or unregister device multiple times, so we have to go through register -> unregister ->register routine. Because after device_unregister function our memory is dirty, we need to do clean operation in order to re-register the device, otherwise the system will crash. The patch intends to clean device after device release. Signed-off-by: Ma Ling <ling.ma@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-04-20drm: count reaches -1Roel Kluin
With a postfix decrement in the test count will reach -1 rather than 0, subsequent tests fail. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-04-19PM/Suspend: Introduce two new platform callbacks to avoid breakageRafael J. Wysocki
Commit 900af0d973856d6feb6fc088c2d0d3fde57707d3 (PM: Change suspend code ordering) changed the ordering of suspend code in such a way that the platform .prepare() callback is now executed after the device drivers' late suspend callbacks have run. Unfortunately, this turns out to break ARM platforms that need to talk via I2C to power control devices during the .prepare() callback. For this reason introduce two new platform suspend callbacks, .prepare_late() and .wake(), that will be called just prior to disabling non-boot CPUs and right after bringing them back on line, respectively, and use them instead of .prepare() and .finish() for ACPI suspend. Make the PM core execute the .prepare() and .finish() platform suspend callbacks where they were executed previously (that is, right after calling the regular suspend methods provided by device drivers and right before executing their regular resume methods, respectively). It is not necessary to make analogous changes to the hibernation code and data structures at the moment, because they are only used by ACPI platforms. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Len Brown <len.brown@intel.com>
2009-04-19Merge ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest-and-virtio * git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest-and-virtio: lguest: document 32-bit and PAE requirements lguest: tell git to ignore Documentation/lguest/lguest virtio: fix suspend when using virtio_balloon lguest: fix guest crash on non-linear addresses in gdt pvops lguest: fix crash on vmlinux images
2009-04-19Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Set function_id only on FG nodes ALSA: MAINTAINERS - Update SOUND ALSA: emu10k1 - off by 1 in snd_emu10k1_wait() ASoC: OMAP: Fix FS polarity in OSK5912 machine driver ASoC: OMAP: Fix DSP_B format in OMAP McBSP DAI driver ASoC: Fix include build error in s3c2412-i2s.c ASoC: Fix s3c-i2s-v2.c snd_soc_dai changes ASoC: s3c-i2s-v2.c fix for s3c_i2sv2_iis_calc_rate ASoC: Fix jive_wm8750.c build problems ASoC: pxa-ssp: allow setting of dai format 0 ALSA: hda - Add upper-limit of mixer amp for AD1884A-laptop model, too ALSA: hda - Fix headphone-detection on some machines with STAC/IDT codecs ALSA: Intel8x0: Add hp_only quirk for SSID 0x1028016a (Dell Inspiron 8600) ALSA: Intel8x0: Remove conflicting quirk for SSID 0x103c0934 ALSA: hda_intel.c - Consolidate bitfields
2009-04-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixesLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes: kbuild: introduce subdir-ccflags-y kbuild: support include/generated
2009-04-19Revert "console ASCII glyph 1:1 mapping"Samuel Thibault
This reverts commit 1c55f18717304100a5f624c923f7cb6511b4116d. Ingo Brueckl was assuming that reverting to 1:1 mapping for chars >= 128 was not useful, but it happens to be: due to the limitations of the Linux console, when a blind user wants to read BIG5 on it, he has no other way than loading a font without SFM and let the 1:1 mapping permit the screen reader to get the BIG5 encoding. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-19<linux/seccomp.h> needs to include <linux/errno.h>.Ralf Baechle
<linux/seccomp.h> uses EINVAL so should include <linux/errno.h>. This fixes a build error on 64-bit MIPS if CONFIG_SECCOMP is disabled. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-19Don't set relatime when noatime is specifiedAndi Kleen
Since commit 0a1c01c9477602ee8b44548a9405b2c1d587b5a2 ("Make relatime default") when a file system is mounted explicitely with noatime it gets both the MNT_RELATIME and MNT_NOATIME bits set. This shows up like this in /proc/mounts: /dev/xxx /yyy ext3 rw,noatime,relatime,errors=continue,data=writeback 0 0 That looks strange. The VFS uses noatime in this case, but both flags are set. So it's more a cosmetic issue, but still better to fix. Cc: mjg@redhat.com Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-19lguest: document 32-bit and PAE requirementsRusty Russell
Robert noted that we don't actually document that lguest is 32-bit only, nor that PAE must be off (CONFIG_PAE is now prompted for if HIGHMEM is set to "off). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: lguest@ozlabs.org Cc: "Robert P. J. Day" <rpjday@crashcourse.ca>
2009-04-19lguest: tell git to ignore Documentation/lguest/lguestMatt Kraai
This is the example lguest launcher binary. Signed-off-by: Matt Kraai <kraai@ftbfs.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-04-19virtio: fix suspend when using virtio_balloonMarcelo Tosatti
Break out of wait_event_interruptible() if freezing has been requested, in the vballoon thread. Without this change vballoon refuses to stop and the system can't suspend. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: stable@kernel.org
2009-04-19lguest: fix guest crash on non-linear addresses in gdt pvopsRusty Russell
Fixes guest crash 'lguest: bad read address 0x4800000 len 256' The new per-cpu allocator ends up handing a non-linear address to write_gdt_entry. We do __pa() on it, and hand it to the host, which kills us. I've long wanted to make the hypercall "LOAD_GDT_ENTRY" to match the IDT code, but had no pressing reason until now. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: lguest@ozlabs.org
2009-04-19lguest: fix crash on vmlinux imagesMatias Zabaljauregui
Typical message: 'lguest: unhandled trap 6 at 0x418726 (0x0)' vmlinux guests were broken by 4cd8b5e2a159f18a1507f1187b44a1acbfa6341b 'lguest: use KVM hypercalls', which rewrites guest text from kvm hypercalls to trap 31. The Launcher mmaps the kernel image. The Guest executes and immediately faults in the first text page (read-only). Then it hits a hypercall, and we rewrite that hypercall, causing a copy-on-write. But the Guest pagetables still refer to the old page: we fault again, but as Host we see the hypercall already rewritten, and pass the fault back to the Guest. The Guest hasn't set up an IDT yet, so we kill it. This doesn't happen with bzImages: they unpack themselves and so the text pages are already read-write. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Tested-by: Patrick McHardy <kaber@trash.net>
2009-04-19Merge branch 'fix/misc' into for-linusTakashi Iwai
* fix/misc: ALSA: MAINTAINERS - Update SOUND ALSA: emu10k1 - off by 1 in snd_emu10k1_wait()
2009-04-19Merge branch 'fix/intel8x0' into for-linusTakashi Iwai
* fix/intel8x0: ALSA: Intel8x0: Add hp_only quirk for SSID 0x1028016a (Dell Inspiron 8600) ALSA: Intel8x0: Remove conflicting quirk for SSID 0x103c0934
2009-04-19Merge branch 'fix/hda' into for-linusTakashi Iwai
* fix/hda: ALSA: hda - Set function_id only on FG nodes ALSA: hda - Add upper-limit of mixer amp for AD1884A-laptop model, too ALSA: hda - Fix headphone-detection on some machines with STAC/IDT codecs ALSA: hda_intel.c - Consolidate bitfields
2009-04-19Merge branch 'fix/asoc' into for-linusTakashi Iwai
* fix/asoc: ASoC: OMAP: Fix FS polarity in OSK5912 machine driver ASoC: OMAP: Fix DSP_B format in OMAP McBSP DAI driver ASoC: Fix include build error in s3c2412-i2s.c ASoC: Fix s3c-i2s-v2.c snd_soc_dai changes ASoC: s3c-i2s-v2.c fix for s3c_i2sv2_iis_calc_rate ASoC: Fix jive_wm8750.c build problems ASoC: pxa-ssp: allow setting of dai format 0
2009-04-19kbuild: introduce subdir-ccflags-ySam Ravnborg
Following patch introduce support for setting options to gcc that has effect for current directory and all subdirectories. The typical use case are an architecture or a subsystem that decide to cover all files with -Werror. Today alpha, mips and sparc uses -Werror in almost all their Makefile- with subdir-ccflag-y it is now simpler to do so as only the top-level directories needs to be covered. Likewise if we decide to cover a full subsystem such as net/ with -Werror this is done by adding a single line to net/Makefile. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de>
2009-04-19kbuild: support include/generatedSam Ravnborg
We need a location for generated files. Today they are spread over several places and bringing them together to a common place makes it obvious hat is generated and what isreal files. Al Viro originally suggested: include/gen Linus suggested to spell it out. This patch implement support for include/generated All files in include/generated are ignored by git. include/generated is removed during "make mrproper". With this we are ready to implement support for include/generated in the various architctures and in the base kernel. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-18Remove 'recurse into child resources' logic from 'reserve_region_with_split()'Linus Torvalds
This function is not actually used right now, since the original use case for it was done with insert_resource_expand_to_fit() instead. However, we now have another usage case that wants to basically do a "reserve IO resource, splitting around existing resources", however that one doesn't actually want the "recurse into the conflicting resource" logic at all. And since recursing into the conflicting resource was the most complex part, and isn't wanted, just remove it. Maybe we'll some day want both versions, but we can just resurrect the logic then. Tested-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: when renaming don't try to unlink negative dentry cifs: remove unneeded bcc_ptr update in CIFSTCon cifs: add cFYI messages with some of the saved strings from ssetup/tcon cifs: fix buffer size for tcon->nativeFileSystem field cifs: fix unicode string area word alignment in session setup [CIFS] Fix build break caused by change to new current_umask helper function [CIFS] Fix sparse warnings [CIFS] Add support for posix open during lookup cifs: no need to use rcu_assign_pointer on immutable keys cifs: remove dnotify thread code [CIFS] remove some build warnings cifs: vary timeout on writes past EOF based on offset (try #5) [CIFS] Fix build break from recent DFS patch when DFS support not enabled Remote DFS root support. [CIFS] Endian convert UniqueId when reporting inode numbers from server files cifs: remove some pointless conditionals before kfree() cifs: flush data on any setattr
2009-04-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: cs5536: define dma_sff_read_status() method ide: fix barriers support ide: Remove void casts hpt366: use ATA_DMA_* constants hpt366: fix HPT370 DMA timeouts
2009-04-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: Smack: check for SMACK xattr validity in smack_inode_setxattr
2009-04-18doc: fix kernel-parameters.txt mistaken deletionsRandy Dunlap
Re-add missing kernel-parameters documentation that was accidentally deleted in commit 0cb55ad2. Thanks to Ingo and Weidong Han for the heads-up on this. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> cc: Ingo Molnar <mingo@elte.hu> cc: Len Brown <lenb@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-18PM/Hibernate: Fix memory shrinkingRafael J. Wysocki
Commit d979677c4c0 ("mm: shrink_all_memory(): use sc.nr_reclaimed") broke the memory shrinking used by hibernation, becuse it did not update shrink_all_zones() in accordance with the other changes it made. Fix this by making shrink_all_zones() update sc->nr_reclaimed instead of overwriting its value. This fixes http://bugzilla.kernel.org/show_bug.cgi?id=13058 Reported-and-tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-18cs5536: define dma_sff_read_status() methodSergei Shtylyov
The driver somehow got merged with the initializer for the dma_sff_read_status() method missing which caused kernel panic on bootup. This should fix the kernel.org bug #13026... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Reported-by: Arnd Hannemann <hannemann@nets.rwth-aachen.de> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-04-18ide: fix barriers supportBartlomiej Zolnierkiewicz
Freeing non-slab objects is bad and results in an oops. Fix it. Reported-and-tested-by: Andrew Price <andy@andrewprice.me.uk> Cc: Theodore Tso <tytso@mit.edu> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-04-18ide: Remove void castsJack Stone
Remove uneeded void casts Signed-off-by: Jack Stone <jwjstone@fastmail.fm> Cc: jeff@garzik.org Cc: kernel-janitors@vger.kernel.org Cc: Jack Stone <jwjstone@fastmail.fm> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-04-18hpt366: use ATA_DMA_* constantsSergei Shtylyov
Use ATA_DMA_* constants instead of the bare numbers for the BMIDE register bits. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-04-18hpt366: fix HPT370 DMA timeoutsSergei Shtylyov
The big driver change in 2.4.19-rc1 introduced a regression for many HPT370[A] chips -- DMA stopped to work completely, only causing endless timeouts... The culprit has been identified (at last!): it turned to be the code resetting the DMA state machine before each transfer. Stop doing it now as this counter- measure has clearly caused more harm than good. This should fix the kernel.org bug #7703. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-04-18Smack: check for SMACK xattr validity in smack_inode_setxattrEtienne Basset
the following patch moves checks for SMACK xattr validity from smack_inode_post_setxattr (which cannot return an error to the user) to smack_inode_setxattr (which can return an error). Signed-off-by: Etienne Basset <etienne.basset@numericable.fr> Acked-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: James Morris <jmorris@namei.org>
2009-04-17Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] fix build error on drivers/ata/pata_legacy.c pata_via: Cache and rewrite the device bit sata_mv: workaround for multi_count errata sata24 sata_mv: tidy up qc->tf usage in qc_prep() functions
2009-04-17[libata] fix build error on drivers/ata/pata_legacy.cZhenwen Xu
fix those errors: drivers/ata/pata_legacy.c: In function ‘pdc_data_xfer_vlb’: drivers/ata/pata_legacy.c:289: error: ‘ap’ undeclared (first use in this function) drivers/ata/pata_legacy.c:289: error: (Each undeclared identifier is reported only once drivers/ata/pata_legacy.c:289: error: for each function it appears in.) drivers/ata/pata_legacy.c: At top level: drivers/ata/pata_legacy.c:869: error: ‘ATA_PFLAG_PIO32_CHANGE’ undeclared here (not in a +function) make[2]: *** [drivers/ata/pata_legacy.o] Error 1 make[1]: *** [drivers/ata] Error 2 Signed-off-by: Zhenwen Xu <helight.xu@gmail.com> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-04-17pata_via: Cache and rewrite the device bitAlan Cox
Some VIA chipsets will reset the DEV bit after IEN changes on ctl. Our optimised write path avoids doing this but we need to remove the optimisation on these devices. [Identified and some original patches proposed by Josehn Chan @ VIA but discussion then all ground to a halt so given a test case I dug it back out] Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk Tested-by: Christoph Bisping (bug #13086) Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-04-17sata_mv: workaround for multi_count errata sata24Mark Lord
Workaround for errata SATA#24 in sata_mv. This errata affects WRITE_MULTI* commands when the device multi_count produces a DRQ block size >= 4Kbytes. We work around it here by converting such operations into ordinary PIO_WRITEs instead. Note that this might result in a PIO FUA write unavoidably being converted into a non-FUA write. In practice, any system using FUA is also going to be using DMA rather than PIO, so this shouldn't affect anyone in the real world. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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