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is_under() will DTRT anyway. And yes, is_subdir() behaviour
is intentional.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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AFAICS, we have a subtle bug there: if we have crossed mountpoint
*and* it got mount --move'd away, we'll be holding only one
reference to fs containing dentry - exp->ex_path.mnt. IOW, we
ought to dput() before exp_put().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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We shouldn't just touch the namespace of current process
Caught-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Missing conversion from kernel to userland dev_t; this sucker
breaks as soon as we get sufficiently many autofs mounts for
new_encode_dev(s_dev) != s_dev.
Note: this is the minimal fix.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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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
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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
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* '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
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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>
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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>
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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>
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.. 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>
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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>
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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>
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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>
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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>
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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>
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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>
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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
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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
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* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
kbuild: introduce subdir-ccflags-y
kbuild: support include/generated
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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>
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<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>
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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>
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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>
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This is the example lguest launcher binary.
Signed-off-by: Matt Kraai <kraai@ftbfs.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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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
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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
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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>
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* fix/misc:
ALSA: MAINTAINERS - Update SOUND
ALSA: emu10k1 - off by 1 in snd_emu10k1_wait()
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* fix/intel8x0:
ALSA: Intel8x0: Add hp_only quirk for SSID 0x1028016a (Dell Inspiron 8600)
ALSA: Intel8x0: Remove conflicting quirk for SSID 0x103c0934
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* 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
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* 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
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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>
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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>
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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>
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* 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
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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
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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
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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
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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>
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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>
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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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