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* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] cmpxchg: implement cmpxchg64()
[S390] xchg/cmpxchg: move to own header file
[S390] ccwgroup_driver: remove duplicate members
[S390] ccw_bus_type: make it static
[S390] ccw_driver: remove duplicate members
[S390] qdio: prevent handling of buffers if count is zero
[S390] setup: register bss section as resource
[S390] setup: simplify setup_resources()
[S390] wire up sys_syncfs
[S390] wire up sys_clock_adjtime
[S390] wire up sys_open_by_handle_at
[S390] wire up sys_name_to_handle_at
[S390] oprofile: disable hw sampling for CONFIG_32BIT
[S390] early: limit savesys cmd string handling
[S390] early: Fix possible overlapping data buffer
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Signed-off-by: Maxim Levitsky <[email protected]>
Acked-by: Alex Dubov <[email protected]>
Cc: FUJITA Tomonori <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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This is an off by one because strlen() doesn't count the null
terminator. We strcpy() these strings into an array of size
MAX_CONFIG_LEN.
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: Jason Wessel <[email protected]>
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Convert to the new irq chip functions and cleanup the name space.
[ Guennadi reported: irq_data_get_chip_data is undefined. Yes, I screwed up.
it needs to be irq_data_get_irq_chip_data ]
Signed-off-by: Thomas Gleixner <[email protected]>
Tested-by: Guennadi Liakhovetski <[email protected]>
Cc: Dan Williams <[email protected]>
LKML-Reference: <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6: (9356 commits)
[media] rc: update for bitop name changes
fs: simplify iget & friends
fs: pull inode->i_lock up out of writeback_single_inode
fs: rename inode_lock to inode_hash_lock
fs: move i_wb_list out from under inode_lock
fs: move i_sb_list out from under inode_lock
fs: remove inode_lock from iput_final and prune_icache
fs: Lock the inode LRU list separately
fs: factor inode disposal
fs: protect inode->i_state with inode->i_lock
lib, arch: add filter argument to show_mem and fix private implementations
SLUB: Write to per cpu data when allocating it
slub: Fix debugobjects with lockless fastpath
autofs4: Do not potentially dereference NULL pointer returned by fget() in autofs_dev_ioctl_setpipefd()
autofs4 - remove autofs4_lock
autofs4 - fix d_manage() return on rcu-walk
autofs4 - fix autofs4_expire_indirect() traversal
autofs4 - fix dentry leak in autofs4_expire_direct()
autofs4 - reinstate last used update on access
vfs - check non-mountpoint dentry might block in __follow_mount_rcu()
...
NOTE!
This merge commit was created to fix compilation error. The block
tree was merged upstream and removed the 'elv_queue_empty()'
function which the new 'mtdswap' driver is using. So a simple
merge of the mtd tree with upstream does not compile. And the
mtd tree has already be published, so re-basing it is not an option.
To fix this unfortunate situation, I had to merge upstream into the
mtd-2.6.git tree without committing, put the fixup patch on top of
this, and then commit this. The result is that we do not have commits
which do not compile.
In other words, this merge commit "merges" 3 things: the MTD tree, the
upstream tree, and the fixup patch.
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Fix the following compilation warning:
drivers/mtd/mtdswap.c: In function ‘mtdswap_pick_gc_eblk’:
drivers/mtd/mtdswap.c:859: warning: ‘idx’ may be used uninitialized in this function
drivers/mtd/mtdswap.c:859: note: ‘idx’ was declared here
Initialize idx to -1 because this value means "no tree choosen".
Signed-off-by: Artem Bityutskiy <[email protected]>
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As Artem Bityutskiy suggested: this option is controversial, as we
do not really have any prove it is useful. And it is too much to have
it as a config parameter. So, better kill it and let the real mtdswap
users decide whether it is needed or not.
Signed-off-by: Yang Ruirui<[email protected]>
Signed-off-by: Artem Bityutskiy <[email protected]>
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Fix the following compile failure:
drivers/media/rc/ite-cir.c: In function 'ite_decode_bytes':
drivers/media/rc/ite-cir.c:190: error: implicit declaration of function 'generic_find_next_le_bit'
drivers/media/rc/ite-cir.c:199: error: implicit declaration of function 'generic_find_next_zero_le_bit'
Caused by commit 620a32bba4a2 ("[media] rc: New rc-based ite-cir driver
for several ITE CIRs") interacting with commit c4945b9ed472
("asm-generic: rename generic little-endian bitops functions").
Signed-off-by: Stephen Rothwell <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Commit ddd588b5dd55 ("oom: suppress nodes that are not allowed from
meminfo on oom kill") moved lib/show_mem.o out of lib/lib.a, which
resulted in build warnings on all architectures that implement their own
versions of show_mem():
lib/lib.a(show_mem.o): In function `show_mem':
show_mem.c:(.text+0x1f4): multiple definition of `show_mem'
arch/sparc/mm/built-in.o:(.text+0xd70): first defined here
The fix is to remove __show_mem() and add its argument to show_mem() in
all implementations to prevent this breakage.
Architectures that implement their own show_mem() actually don't do
anything with the argument yet, but they could be made to filter nodes
that aren't allowed in the current context in the future just like the
generic implementation.
Reported-by: Stephen Rothwell <[email protected]>
Reported-by: James Bottomley <[email protected]>
Suggested-by: Andrew Morton <[email protected]>
Signed-off-by: David Rientjes <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/vblank: update recently added vbl interface to be more future proof.
drm radeon: Return -EINVAL on wrong pm sysfs access
drm/radeon/kms: fix hardcoded EDID handling
Revert "drm/i915: Don't save/restore hardware status page address register"
drm/i915: Avoid unmapping pages from a NULL address space
drm/i915: Fix use after free within tracepoint
drm/i915: Restore missing command flush before interrupt on BLT ring
drm/i915: Disable pagefaults along execbuffer relocation fast path
drm/i915: Fix computation of pitch for dumb bo creator
drm/i915: report correct render clock frequencies on SNB
drm/i915/dp: Correct the order of deletion for ghost eDP devices
drm/i915: Fix tiling corruption from pipelined fencing
drm/i915: Re-enable self-refresh
drm/i915: Prevent racy removal of request from client list
drm/i915: skip redundant operations whilst enabling pipes and planes
drm/i915: Remove surplus POSTING_READs before wait_for_vblank
drm/radeon/kms: prefer legacy pll algo for tv-out
drm: check for modesetting on modeset ioctls
drm/kernel: vblank wait on crtc > 1
drm: Fix use-after-free in drm_gem_vm_close()
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Commit 1765a575334f ("net: make dev->master general") introduced a
test of an uninitialized netdev. Fix the code so the intended netdev
is tested.
Signed-off-by: Roland Dreier <[email protected]>
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Fix section mismatch warning by renaming the pci_driver variable to a
recognized (whitelisted) name.
WARNING: drivers/net/pch_gbe/pch_gbe.o(.data+0x1f8): Section mismatch in reference from the variable pch_gbe_pcidev to the variable .devinit.rodata:pch_gbe_pcidev_id
The variable pch_gbe_pcidev references
the variable __devinitconst pch_gbe_pcidev_id
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Converted with coccinelle.
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Grant Likely <[email protected]>
LKML-Reference: <[email protected]>
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Converted with coccinelle.
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Grant Likely <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
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gpiolib plus two gpio implementations in arm fiddle in the guts of
irq_desc in a racy and buggy way. Remove the stuff. I already told the
gpio folks that we can provide that information in a proper way if
necessary.
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Grant Likely <[email protected]>
LKML-Reference: <[email protected]>
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Avoiding abuse of ethtool_drvinfo.driver field.
HW specific info can be retrieved using lspci.
Signed-off-by: Yevgeny Petrilin <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
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* 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block: (65 commits)
Documentation/iostats.txt: bit-size reference etc.
cfq-iosched: removing unnecessary think time checking
cfq-iosched: Don't clear queue stats when preempt.
blk-throttle: Reset group slice when limits are changed
blk-cgroup: Only give unaccounted_time under debug
cfq-iosched: Don't set active queue in preempt
block: fix non-atomic access to genhd inflight structures
block: attempt to merge with existing requests on plug flush
block: NULL dereference on error path in __blkdev_get()
cfq-iosched: Don't update group weights when on service tree
fs: assign sb->s_bdi to default_backing_dev_info if the bdi is going away
block: Require subsystems to explicitly allocate bio_set integrity mempool
jbd2: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging
jbd: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging
fs: make fsync_buffers_list() plug
mm: make generic_writepages() use plugging
blk-cgroup: Add unaccounted time to timeslice_used.
block: fixup plugging stubs for !CONFIG_BLOCK
block: remove obsolete comments for blkdev_issue_zeroout.
blktrace: Use rq->cmd_flags directly in blk_add_trace_rq.
...
Fix up conflicts in fs/{aio.c,super.c}
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Fix build alloc_thread_info_node function
sh: Fix ptrace hw_breakpoint handling
sh: Fix ptrace fpu state initialisation
sh: Re-enable GENERIC_HARDIRQS_NO_DEPRECATED.
sh: pmb: Use struct syscore_ops instead of sysdevs
sh: Use struct syscore_ops instead of sysdevs
sh: Conver to asm-generic/sizes.h.
sh: wire up sys_syncfs.
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: cdc-acm: fix potential null-pointer dereference on disconnect
USB: cdc-acm: fix potential null-pointer dereference
USB: cdc-acm: fix memory corruption / panic
USB: Fix 'bad dma' problem on WDM device disconnect
usb: wwan: fix compilation without CONFIG_PM_RUNTIME
USB: uss720 fixup refcount position
usb: musb: blackfin: fix typo in new bfin_musb_vbus_status func
usb: musb: blackfin: fix typo in new dev_pm_ops struct
usb: musb: blackfin: fix typo in platform driver name
usb: musb: Fix for merge issue
ehci-hcd: Bug fix: don't set a QH's Halt bit
USB: Do not pass negative length to snoop_urb()
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (442 commits)
[media] videobuf2-dma-contig: make cookie() return a pointer to dma_addr_t
[media] sh_mobile_ceu_camera: Do not call vb2's mem_ops directly
[media] V4L: soc-camera: explicitly require V4L2_BUF_TYPE_VIDEO_CAPTURE
[media] v4l: soc-camera: Store negotiated buffer settings
[media] rc: interim support for 32-bit NEC-ish scancodes
[media] mceusb: topseed 0x0011 needs gen3 init for tx to work
[media] lirc_zilog: error out if buffer read bytes != chunk size
[media] lirc: silence some compile warnings
[media] hdpvr: use same polling interval as other OS
[media] ir-kbd-i2c: pass device code w/key in hauppauge case
[media] rc/keymaps: Remove the obsolete rc-rc5-tv keymap
[media] remove the old RC_MAP_HAUPPAUGE_NEW RC map
[media] rc/keymaps: Rename Hauppauge table as rc-hauppauge
[media] rc-rc5-hauppauge-new: Fix Hauppauge Grey mapping
[media] rc-rc5-hauppauge-new: Add support for the old Black RC
[media] rc-rc5-hauppauge-new: Add the old control to the table
[media] rc-winfast: Fix the keycode tables
[media] a800: Fix a few wrong IR key assignments
[media] opera1: Use multimedia keys instead of an app-specific mapping
[media] dw2102: Use multimedia keys instead of an app-specific mapping
...
Fix up trivial conflicts (remove/modify and some real conflicts) in:
arch/arm/mach-omap2/devices.c
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/dabusb/dabusb.c
drivers/staging/dabusb/dabusb.h
drivers/staging/easycap/easycap_ioctl.c
drivers/staging/usbvideo/usbvideo.c
drivers/staging/usbvideo/vicam.c
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* 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6:
spi/pl022: Add loopback support for the SPI on 5500
spi/omap_mcspi: Fix broken last word xfer
of/flattree: minor cleanups
dt: eliminate OF_NO_DEEP_PROBE and test for NULL match table
dt: protect against NULL matches passed to of_match_node()
dt: Refactor of_platform_bus_probe()
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6
* 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6:
intel_idle: Rename cpuidle states
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (42 commits)
ACPI: minor printk format change in acpi_pad
ACPI: make acpi_pad /sys output more readable
ACPICA: Update version to 20110316
ACPICA: Header support for SLIC table
ACPI: Make sure the FADT is at least rev 2 before using the reset register
ACPI: Bug compatibility for Windows on the ACPI reboot vector
ACPICA: Fix access width for reset vector
ACPI battery: fribble sysfs files from a resume notifier
ACPI button: remove unused procfs I/F
ACPI, APEI, Add PCIe AER error information printing support
PCIe, AER, use pre-generated prefix in error information printing
ACPI, APEI, Add ERST record ID cache
ACPI: Use syscore_ops instead of sysdev class and sysdev
ACPI: Remove the unused EC sysdev class
ACPI: use __cpuinit for the acpi_processor_set_pdc() call tree
ACPI: use __init where possible in processor driver
Thermal_Framework-Fix_crash_during_hwmon_unregister
ACPICA: Update version to 20110211.
ACPICA: Add mechanism to defer _REG methods for some installed handlers
ACPICA: Add support for FunctionalFixedHW in acpi_ut_get_region_name
...
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* 'for-linus' of git://git.infradead.org/ubi-2.6:
UBIFS: fix assertion warning and refine comments
UBIFS: kill CONFIG_UBIFS_FS_DEBUG_CHKS
UBIFS: use GFP_NOFS properly
UBI: use GFP_NOFS properly
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB: Increase DMA max_segment_size on Mellanox hardware
IB/mad: Improve an error message so error code is included
RDMA/nes: Don't print success message at level KERN_ERR
RDMA/addr: Fix return of uninitialized ret value
IB/srp: try to use larger FMR sizes to cover our mappings
IB/srp: add support for indirect tables that don't fit in SRP_CMD
IB/srp: rework mapping engine to use multiple FMR entries
IB/srp: allow sg_tablesize to be set for each target
IB/srp: move IB CM setup completion into its own function
IB/srp: always avoid non-zero offsets into an FMR
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git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (90 commits)
mfd: Push byte swaps out of wm8994 bulk read path
mfd: Rename ab8500 gpadc header
mfd: Constify WM8994 write path
mfd: Push byte swap out of WM8994 bulk I/O
mfd: Avoid copying data in WM8994 I2C write
mfd: Remove copy from WM831x I2C write function
mfd: Staticise WM8994 PM ops
regulator: Add a subdriver for TI TPS6105x regulator portions v2
mfd: Add a core driver for TI TPS61050/TPS61052 chips v2
gpio: Add Tunnel Creek support to sch_gpio
mfd: Add Tunnel Creek support to lpc_sch
pci_ids: Add Intel Tunnel Creek LPC Bridge device ID.
regulator: MAX8997/8966 support
mfd: Add WM8994 bulk register write operation
mfd: Append additional read write on 88pm860x
mfd: Adopt mfd_data in 88pm860x input driver
mfd: Adopt mfd_data in 88pm860x regulator
mfd: Adopt mfd_data in 88pm860x led
mfd: Adopt mfd_data in 88pm860x backlight
mfd: Fix MAX8997 Kconfig entry typos
...
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* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6: (140 commits)
MAINTAINERS: de-orphan fbdev.
MAINTAINERS: Add file pattern for fb dt bindings.
video: Move sm501fb devicetree binding documentation to a better place.
fbcon: fix situation where fbcon gets deinitialised and can't reinit.
video, sm501: add OF binding to support SM501
video, sm501: add edid and commandline support
video, sm501: add I/O functions for use on powerpc
video: Fix EDID macros H_SYNC_WIDTH and H_SYNC_OFFSET
fbcon: Bugfix soft cursor detection in Tile Blitting
video: add missing framebuffer_release in error path
video: metronomefb: add __devexit_p around reference to metronomefb_remove
video: hecubafb: add __devexit_p around reference to hecubafb_remove
drivers:video:aty:radeon_base Fix typo occationally to occasionally
atmel_lcdfb: add fb_blank function
atmel_lcdfb: implement inverted contrast pwm
video: s3c-fb: return proper error if clk_get fails
uvesafb,vesafb: create WC or WB PAT-entries
video: ffb: fix ffb_probe error path
radeonfb: Let hwmon driver probe the "monid" I2C bus
fbdev: sh_mobile_lcdc: checking NULL instead of IS_ERR()
...
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This patch fixes a brown-paperbag bug which was introduced by me:
I used incorrect "GFP_KERNEL | GFP_NOFS" allocation flags to make
sure my allocations do not cause write-back. But the correct form
is "GFP_NOFS".
Signed-off-by: Artem Bityutskiy <[email protected]>
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Implement a merge function in the striped target.
When the striped target's underlying devices provide a merge_bvec_fn
(like all DM devices do via dm_merge_bvec) it is important to call down
to them when building a biovec that doesn't span a stripe boundary.
Without the merge method, a striped DM device stacked on DM devices
causes bios with a single page to be submitted which results
in unnecessary overhead that hurts performance.
This change really helps filesystems (e.g. XFS and now ext4) which take
care to assemble larger bios. By implementing stripe_merge(), DM and the
stripe target no longer undermine the filesystem's work by only allowing
a single page per bio. Buffered IO sees the biggest improvement
(particularly uncached reads, buffered writes to a lesser degree). This
is especially so for more capable "enterprise" storage LUNs.
The performance improvement has been measured to be ~12-35% -- when a
reasonable chunk_size is used (e.g. 64K) in conjunction with a stripe
count that is a power of 2.
In contrast, the performance penalty is ~5-7% for the pathological worst
case stripe configuration (small chunk_size with a stripe count that is
not a power of 2). The reason for this is that stripe_map_sector() is
now called once for every call to dm_merge_bvec(). stripe_map_sector()
will use slower division if stripe count isn't a power of 2.
Signed-off-by: Mustafa Mesanovic <[email protected]>
Signed-off-by: Mike Snitzer <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
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This patch adjusts the multipath target to allow a table with both 0
priority groups and 0 for the initial priority group number.
If any mpath device is held open when all paths in the last priority
group have failed, userspace multipathd will attempt to reload the
associated DM table to reflect the fact that the device no longer has
any priority groups. But the reload attempt always failed because the
multipath target did not allow 0 priority groups.
All multipath target messages related to priority group (enable_group,
disable_group, switch_group) will handle a priority group of 0 (will
cause error).
When reloading a multipath table with 0 priority groups, userspace
multipathd must be updated to specify an initial priority group number
of 0 (rather than 1).
Signed-off-by: Mike Snitzer <[email protected]>
Cc: Babu Moger <[email protected]>
Acked-by: Hannes Reinecke <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
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Fail the reinstate_path and fail_path message ioctl if the specified
path is not valid.
The message ioctl would succeed for the 'reinistate_path' and
'fail_path' messages even if action was not taken because the
specified device was not a valid path of the multipath device.
Before, when /dev/vdb is not a path of mpathb:
$ dmsetup message mpathb 0 reinstate_path /dev/vdb
$ echo $?
0
After:
$ dmsetup message mpathb 0 reinstate_path /dev/vdb
device-mapper: message ioctl failed: Invalid argument
Command failed
$ echo $?
1
Signed-off-by: Mike Snitzer <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
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Add DM_SECURE_DATA_FLAG which userspace can use to ensure
that all buffers allocated for dm-ioctl are wiped
immediately after use.
The user buffer is wiped as well (we do not want to keep
and return sensitive data back to userspace if the flag is set).
Wiping is useful for cryptsetup to ensure that the key
is present in memory only in defined places and only
for the time needed.
(For crypt, key can be present in table during load or table
status, wait and message commands).
Signed-off-by: Milan Broz <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
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Prepare code for implementing buffer wipe flag.
No functional change in this patch.
Signed-off-by: Milan Broz <[email protected]>
Acked-by: Mike Snitzer <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
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Always wipe the original copy of the key after processing it
in crypt_set_key().
Signed-off-by: Milan Broz <[email protected]>
Acked-by: Mike Snitzer <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
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This target is the same as the linear target except that it returns I/O
errors periodically. It's been found useful in simulating failing
devices for testing purposes.
I needed a dm target to do some failure testing on btrfs's raid code, and
Mike pointed me at this.
Signed-off-by: Josef Bacik <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
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If a table is read-only, also open any log and cow devices it uses read-only.
Previously, even read-only devices were opened read-write internally.
After patch 75f1dc0d076d1c1168f2115f1941ea627d38bd5a
block: check bdev_read_only() from blkdev_get()
was applied, loading such tables began to fail. The patch
was reverted by e51900f7d38cbcfb481d84567fd92540e7e1d23a
block: revert block_dev read-only check
but this patch fixes this part of the code to work with the original patch.
Signed-off-by: Milan Broz <[email protected]>
Signed-off-by: Alasdair G Kergon <[email protected]>
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This makes the interface a bit cleaner by leaving a single gap in the
vblank bit space instead of creating two gaps.
Suggestions from Michel on mailing list/irc.
Reviewed-by: Michel Dänzer <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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Throw an error if someone tries to fill this with
wrong data, instead of simply ignoring the input.
Now you get:
echo hello >/sys/../power_method
-bash: echo: write error: Invalid argument
Signed-off-by: Thomas Renninger <[email protected]>
CC: [email protected]
CC: [email protected]
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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On some servers there is a hardcoded EDID provided
in the vbios so that the driver will always see a
display connected even if something like a KVM
prevents traditional means like DDC or load
detection from working properly. Also most
server boards with DVI are not actually DVI, but
DVO connected to a virtual KVM service processor.
If we fail to detect a monitor via DDC or load
detection and a hardcoded EDID is available, use
it.
Additionally, when using the hardcoded EDID, use
a copy of it rather than the actual one stored
in the driver as the detect() and get_modes()
functions may free it if DDC is successful.
This fixes the virtual KVM on several internal
servers.
Signed-off-by: Alex Deucher <[email protected]>
Cc: [email protected]
Signed-off-by: Dave Airlie <[email protected]>
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* 'intel/drm-intel-fixes' of ../drm-next:
Revert "drm/i915: Don't save/restore hardware status page address register"
drm/i915: Avoid unmapping pages from a NULL address space
drm/i915: Fix use after free within tracepoint
drm/i915: Restore missing command flush before interrupt on BLT ring
drm/i915: Disable pagefaults along execbuffer relocation fast path
drm/i915: Fix computation of pitch for dumb bo creator
drm/i915: report correct render clock frequencies on SNB
drm/i915/dp: Correct the order of deletion for ghost eDP devices
drm/i915: Fix tiling corruption from pipelined fencing
drm/i915: Re-enable self-refresh
drm/i915: Prevent racy removal of request from client list
drm/i915: skip redundant operations whilst enabling pipes and planes
drm/i915: Remove surplus POSTING_READs before wait_for_vblank
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This reverts commit a7a75c8f70d6f6a2f16c9f627f938bbee2d32718.
There are two different variations on how Intel hardware addresses the
"Hardware Status Page". One as a location in physical memory and the
other as an offset into the virtual memory of the GPU, used in more
recent chipsets. (The HWS itself is a cacheable region of memory which
the GPU can write to without requiring CPU synchronisation, used for
updating various details of hardware state, such as the position of
the GPU head in the ringbuffer, the last breadcrumb seqno, etc).
These two types of addresses were updated in different locations of code
- one inline with the ringbuffer initialisation, and the other during
device initialisation. (The HWS page is logically associated with
the rings, and there is one HWS page per ring.) During resume, only the
ringbuffers were being re-initialised along with the virtual HWS page,
leaving the older physical address HWS untouched. This then caused a
hang on the older gen3/4 (915GM, 945GM, 965GM) the first time we tried
to synchronise the GPU as the breadcrumbs were never being updated.
Reported-and-tested-by: Linus Torvalds <[email protected]>
Reported-by: Jan Niehusmann <[email protected]>
Reported-and-tested-by: Justin P. Mattock <[email protected]>
Reported-and-tested-by: Michael "brot" Groh <[email protected]>
Cc: Zhenyu Wang <[email protected]>
Signed-off-by: Chris Wilson <[email protected]>
Acked-by: Zhenyu Wang <[email protected]>
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Commit 0b950d3 (Input: tsc2005 - add open/close) introduced a
locking issue with the ESD watchdog: __tsc2005_disable() is calling
cancel_delayed_work_sync() with mutex held, and the work also needs the
same mutex.
Fix the problem by using mutex_trylock() in tsc2005_esd_work(). If the
mutex is taken, we know we are in the middle of disable or enable and
the watchdog check can be skipped.
Signed-off-by: Aaro Koskinen <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>
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Use relative jiffies to schedule the watchdog. Otherwise it will run
like a mad one.
Signed-off-by: Aaro Koskinen <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>
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drivers/input/touchscreen/tsc2005.c: In function ‘tsc2005_probe’:
drivers/input/touchscreen/tsc2005.c:666: error: implicit declaration of function ‘set_irq_wake’
In addition, migrate from set_irq_wake() (marked "do not use" as of commit
a0cd9ca2b907d7ee26575e7b63ac92dad768a75e ("genirq: Namespace cleanup")) to
irq_set_irq_wake().
Signed-off-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
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* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (35 commits)
ARM: Update (and cut down) mach-types
ARM: 6771/1: vexpress: add support for multiple core tiles
ARM: 6797/1: hw_breakpoint: Fix newlines in WARNings
ARM: 6751/1: vexpress: select applicable errata workarounds in Kconfig
ARM: 6753/1: omap4: Enable ARM local timers with OMAP4430 es1.0 exception
ARM: 6759/1: smp: Select local timers vs broadcast timer support runtime
ARM: pgtable: add pud-level code
ARM: 6673/1: LPAE: use phys_addr_t instead of unsigned long for start of membanks
ARM: Use long long format when printing meminfo physical addresses
ARM: integrator: add Integrator/CP sched_clock support
ARM: realview/vexpress: consolidate SMP bringup code
ARM: realview/vexpress: consolidate localtimer support
ARM: integrator/versatile: consolidate FPGA IRQ handling code
ARM: rationalize versatile family Kconfig/Makefile
ARM: realview: remove old AMBA device DMA definitions
ARM: versatile: remove old AMBA device DMA definitions
ARM: vexpress: use new init_early for clock tree and sched_clock init
ARM: realview: use new init_early for clock tree and sched_clock init
ARM: versatile: use new init_early for clock tree and sched_clock init
ARM: integrator: use new init_early for clock tree init
...
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Extend the vendor data with a loopback field, and add new
amba-pl022 vendor data for the DB5500 pl023, as the pl023
on db8500 and db5500 vary.
Signed-off-by: Prajadevi H <[email protected]>
Signed-off-by: Philippe Langlais <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Grant Likely <[email protected]>
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- Introduce ns_capable to test for a capability in a non-default
user namespace.
- Teach cap_capable to handle capabilities in a non-default
user namespace.
The motivation is to get to the unprivileged creation of new
namespaces. It looks like this gets us 90% of the way there, with
only potential uid confusion issues left.
I still need to handle getting all caps after creation but otherwise I
think I have a good starter patch that achieves all of your goals.
Changelog:
11/05/2010: [serge] add apparmor
12/14/2010: [serge] fix capabilities to created user namespaces
Without this, if user serge creates a user_ns, he won't have
capabilities to the user_ns he created. THis is because we
were first checking whether his effective caps had the caps
he needed and returning -EPERM if not, and THEN checking whether
he was the creator. Reverse those checks.
12/16/2010: [serge] security_real_capable needs ns argument in !security case
01/11/2011: [serge] add task_ns_capable helper
01/11/2011: [serge] add nsown_capable() helper per Bastian Blank suggestion
02/16/2011: [serge] fix a logic bug: the root user is always creator of
init_user_ns, but should not always have capabilities to
it! Fix the check in cap_capable().
02/21/2011: Add the required user_ns parameter to security_capable,
fixing a compile failure.
02/23/2011: Convert some macros to functions as per akpm comments. Some
couldn't be converted because we can't easily forward-declare
them (they are inline if !SECURITY, extern if SECURITY). Add
a current_user_ns function so we can use it in capability.h
without #including cred.h. Move all forward declarations
together to the top of the #ifdef __KERNEL__ section, and use
kernel-doc format.
02/23/2011: Per dhowells, clean up comment in cap_capable().
02/23/2011: Per akpm, remove unreachable 'return -EPERM' in cap_capable.
(Original written and signed off by Eric; latest, modified version
acked by him)
[[email protected]: fix build]
[[email protected]: export current_user_ns() for ecryptfs]
[[email protected]: remove unneeded extra argument in selinux's task_has_capability]
Signed-off-by: Eric W. Biederman <[email protected]>
Signed-off-by: Serge E. Hallyn <[email protected]>
Acked-by: "Eric W. Biederman" <[email protected]>
Acked-by: Daniel Lezcano <[email protected]>
Acked-by: David Howells <[email protected]>
Cc: James Morris <[email protected]>
Signed-off-by: Serge E. Hallyn <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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If rio is not a switch then "rswitch" is null.
Signed-off-by: Dan Carpenter <[email protected]>
Cc: Matt Porter <[email protected]>
Cc: Kumar Gala <[email protected]>
Signed-off-by: Alexandre Bounine <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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