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To save time, the test does not just grab any option and test
it. The Kconfig files are examined to determine the dependencies
of the configs. If a config is chosen that depends on another
config, that config will be checked first. By checking the
parents first, we can eliminate whole groups of configs that
may have been enabled.
For example, if a USB device config is chosen and depends on
CONFIG_USB, the CONFIG_USB will be tested before the device.
If CONFIG_USB is found not to be needed, it, as well as all
configs that depend on it, will be disabled and removed from
the current min_config.
Note, the code from streamline_config (make localmodconfig)
was copied and used to find the dependencies in the Kconfig file.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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After doing a make localyesconfig, your kernel configuration may
not be the most useful minimum configuration. Having a true minimum
config that you can use against other configs is very useful if
someone else has a config that breaks on your code. By only forcing
those configurations that are truly required to boot your machine
will give you less of a chance that one of your set configurations
will make the bug go away. This will give you a better chance to
be able to reproduce the reported bug matching the broken config.
Note, this does take some time, and may require you to run the
test over night, or perhaps over the weekend. But it also allows
you to interrupt it, and gives you the current minimum config
that was found till that time.
Note, this test automatically assumes a BUILD_TYPE of oldconfig
and its test type acts like boot.
TODO: add a test version that makes the config do more than just
boot, like having network access.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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There has been too many times that I put in one too many SKIP
TEST_STARTs and start the test with the default randconfig by accident
that I added this to have ktest ask the user for which test they want to
run if no TEST_START is specified.
Now if I accidently start the test with all TEST_STARTs skipped, ktest
asks what test do I want to run, and I now have a chance to kill it
before it does a make mrproper on my build directory.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Several places had the following code:
get_grub_index;
get_version;
install;
start_monitor;
return monitor;
Creating a function "start_monitor_and_boot()" replaces these mulitple
uses with a single call.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Doing a patchcheck test, there may be warnings that gcc produces which
may be OK, and the test should not fail on that commit. By adding a
IGNORE_WARNINGS option to list a space delimited SHA1s that are ignored
lets the user avoid having the test fail on certain commits.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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The tar command to create the module directory is cjf, but the
extraction only had xf. This works on most versions of tar, but some
versions of tar require xjf for extraction as well.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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As multiple tests may be executed by the same server, have the test
machine name add uniqueness to the value of the temp directory.
Otherwise the temp directories may overwrite each other's tests.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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There are some cases that a patch may be needed to apply to the kernel
in patchcheck or bisect tests. Adding a PRE_BUILD option to apply the
patch and POST_BUILD to remove it, allows for this to be done easily.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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When a config is set with CONFIG_MODULES=n, it does not mean that the
kernel does not need an initrd to boot. For systems that depend on LVM
and such, an initrd must run first.
If POST_INSTALL is defined, then run the post install regardless if
modules are needed or not.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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The LOG_FILE variable needs to evaluate the $ options as well.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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After a bug is found, the STOP_AFTER_FAILURE timeout is used to
determine how much output should be printed before breaking out
of the monitor loop. This is to get things like call traces and
enough infromation about the bug to help determine what caused it.
The STOP_AFTER_FAILURE is usually much shorter than the TIMEOUT
that is used to determine when to quit after no more stdio is given.
But since the stdio read uses a wait on I/O, the STOP_AFTER_FAILURE is
only checked after we get something from I/O. But if the I/O does
not return any more data, we wait the TIMEOUT period instead, even
though we already triggered a bug report.
The wait on I/O should honor the STOP_AFTER_FAILURE time if a bug has
been found.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Using the build KCONFIG_ALLCONFIG environment variable to force
the min config may not always work properly. Since ktest is
written in perl, it is trivial to read and replace the current
config with the configs specified by the min config.
Now the min config (and add configs) are read by perl and before
a make is done, these configs in the .config file are replaced
by the version in the min config.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Searching through several tests, it gets confusing which test result
is for which test. By adding the TEST_NAME option, the user can tell
which test result belongs to which test.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Currently the config_bisect compares the min config with the
CONFIG_BISECT config. There may be another config that we know
is good that we want to ignore configs on. By passing in this
config it will ignore the options that are set in the good config.
Note: This only ignores the config, it does not (yet) handle
options that are different between the two configs. If the good
config has "SLAB" set and the bad config has "SLUB" it will not
find the bug if the bug had to do with changing these two options.
This is something that I intend to implement in the future.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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When a triple fault happens in a test, no call trace nor panic
is displayed. Instead, the system reboots to the good kernel.
Since the good kernel may display a boot prompt that matches the
success string, ktest may think that the test succeeded, when it
did not.
Detecting triple faults is tricky because it is hard to generalize
what a reboot looks like. The best that we can come up with for now
is to examine the Linux banner. If we detect that the Linux banner
matches the test we want to test, then look to see if we hit another
Linux banner with a different kernel is booted. This can be assumed
to be a triple fault.
We can't just check for two Linux banners because things like
early printk may cause the Linux banner to be displayed twice. Checking
for different kernel versions should be the safe bet.
If this for some reason detects a false triple boot. A new ktest
config option is also created:
DETECT_TRIPLE_FAULT
This can be set to 0 to disable this checking.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Different timeouts can cause the ktest monitor to break out of the
loop. It becomes annoying that one does not know the reason why
it exited the monitor loop. Display the cause of the reason why
the loop was exited.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Al Viro observes that in the hugetlb case, handle_mm_fault() may return
a value of the kind ENOSPC when its caller is expecting a value of the
kind VM_FAULT_SIGBUS: fix alloc_huge_page()'s failure returns.
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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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: usb - turn off de-emphasis in s/pdif for cm6206
ALSA: asihpi: Use angle brackets for system includes
ALSA: fm801: add error handling if auto-detect fails
ALSA: hda - Check pin support EAPD in ad198x_power_eapd_write
ALSA: hda - Fix HP and Front pins of ad1988/ad1989 in ad198x_power_eapd()
ALSA: 6fire: Don't leak firmware in error path
ASoC: Fix wm_hubs input PGA ZC bits
ASoC: Fix dapm_is_shared_kcontrol so everything isn't shared
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging:
hwmon: (max6642): Better chip detection schema
hwmon: (coretemp) Further relax temperature range checks
hwmon: (coretemp) Fix TjMax detection for older CPUs
hwmon: (coretemp) Relax target temperature range check
hwmon: (max6642) Rename temp_fault sysfs attribute to temp2_fault
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* 'for-linus' of git://android.git.kernel.org/kernel/tegra:
ARM: Tegra: Harmony: Fix conflicting GPIO numbering
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Currently, both the WM8903 and TPS6586x chips attempt to register with
gpiolib using the same GPIO numbers. This causes the audio driver to
fail to initialize.
To solve this, add a define to board-harmony.h for the TPS6586x, and make
board-harmony-power.c use this define, instead of directly referencing
TEGRA_NR_GPIOS.
This fixes a regression introduced by commit
6f168f2fa60f87e85e0df25e87e2372f22f5eb7c.
ARM: tegra: harmony: initialize the TPS65862 PMIC
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (25 commits)
btrfs: fix uninitialized variable warning
btrfs: add helper for fs_info->closing
Btrfs: add mount -o inode_cache
btrfs: scrub: add explicit plugging
btrfs: use btrfs_ino to access inode number
Btrfs: don't save the inode cache if we are deleting this root
btrfs: false BUG_ON when degraded
Btrfs: don't save the inode cache in non-FS roots
Btrfs: make sure we don't overflow the free space cache crc page
Btrfs: fix uninit variable in the delayed inode code
btrfs: scrub: don't reuse bios and pages
Btrfs: leave spinning on lookup and map the leaf
Btrfs: check for duplicate entries in the free space cache
Btrfs: don't try to allocate from a block group that doesn't have enough space
Btrfs: don't always do readahead
Btrfs: try not to sleep as much when doing slow caching
Btrfs: kill BTRFS_I(inode)->block_group
Btrfs: don't look at the extent buffer level 3 times in a row
Btrfs: map the node block when looking for readahead targets
Btrfs: set range_start to the right start in count_range_bits
...
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Improve detection of MAX6642 by reading non existing registers (0x04, 0x06
and 0xff). Reading those registers returns the previously read value.
Signed-off-by: Per Dalen <per.dalen@appeartv.com>
[guenter.roeck@ericsson.com: added second set of register reads]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] Fix oops caused by queue refcounting failure
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (40 commits)
tg3: Fix tg3_skb_error_unmap()
net: tracepoint of net_dev_xmit sees freed skb and causes panic
drivers/net/can/flexcan.c: add missing clk_put
net: dm9000: Get the chip in a known good state before enabling interrupts
drivers/net/davinci_emac.c: add missing clk_put
af-packet: Add flag to distinguish VID 0 from no-vlan.
caif: Fix race when conditionally taking rtnl lock
usbnet/cdc_ncm: add missing .reset_resume hook
vlan: fix typo in vlan_dev_hard_start_xmit()
net/ipv4: Check for mistakenly passed in non-IPv4 address
iwl4965: correctly validate temperature value
bluetooth l2cap: fix locking in l2cap_global_chan_by_psm
ath9k: fix two more bugs in tx power
cfg80211: don't drop p2p probe responses
Revert "net: fix section mismatches"
drivers/net/usb/catc.c: Fix potential deadlock in catc_ctrl_run()
sctp: stop pending timers and purge queues when peer restart asoc
drivers/net: ks8842 Fix crash on received packet when in PIO mode.
ip_options_compile: properly handle unaligned pointer
iwlagn: fix incorrect PCI subsystem id for 6150 devices
...
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With Linus' tree, today's linux-next build (powercp ppc64_defconfig)
produced this warning:
fs/btrfs/delayed-inode.c: In function 'btrfs_delayed_update_inode':
fs/btrfs/delayed-inode.c:1598:6: warning: 'ret' may be used
uninitialized in this function
Introduced by commit 16cdcec736cd ("btrfs: implement delayed inode items
operation").
This fixes a bug in btrfs_update_inode(): if the returned value from
btrfs_delayed_update_inode is a nonzero garbage, inode stat data are not
updated and several call paths may hit a BUG_ON or fail with strange
code.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David Sterba <dsterba@suse.cz>
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wrap checking of filesystem 'closing' flag and fix a few missing memory
barriers.
Signed-off-by: David Sterba <dsterba@suse.cz>
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This makes the inode map cache default to off until we
fix the overflow problem when the free space crcs don't fit
inside a single page.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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With the removal of the implicit plugging scrub ends up doing more and
smaller I/O than necessary. This patch adds explicit plugging per chunk.
Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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commit 4cb5300bc ("Btrfs: add mount -o auto_defrag") accesses inode
number directly while it should use the helper with the new inode
number allocator.
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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With xfstest 254 I can panic the box every time with the inode number caching
stuff on. This is because we clean the inodes out when we delete the subvolume,
but then we write out the inode cache which adds an inode to the subvolume inode
tree, and then when it gets evicted again the root gets added back on the dead
roots list and is deleted again, so we have a double free. To stop this from
happening just return 0 if refs is 0 (and we're not the tree root since tree
root always has refs of 0). With this fix 254 no longer panics. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
Tested-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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In degraded mode the struct btrfs_device of missing devs don't have
device->name set. A kstrdup of NULL correctly returns NULL. Don't
BUG in this case.
Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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This adds extra checks to make sure the inode map we are caching really
belongs to a FS root instead of a special relocation tree. It
prevents crashes during balancing operations.
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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The free space cache uses only one page for crcs right now,
which means we can't have a cache file bigger than the
crcs we can fit in the first page. This adds a check to
enforce that restriction.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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The nitems counter needs to start at zero
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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The current scrub implementation reuses bios and pages as often as possible,
allocating them only on start and releasing them when finished. This leads
to more problems with the block layer than it's worth. The elevator gets
confused when there are more pages added to the bio than bi_size suggests.
This patch completely rips out the reuse of bios and pages and allocates
them freshly for each submit.
Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Chris Maosn <chris.mason@oracle.com>
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* 'for-linus' of git://git.kernel.dk/linux-block:
block: Use hlist_entry() for io_context.cic_list.first
cfq-iosched: Remove bogus check in queue_fail path
xen/blkback: potential null dereference in error handling
xen/blkback: don't call vbd_size() if bd_disk is NULL
block: blkdev_get() should access ->bd_disk only after success
CFQ: Fix typo and remove unnecessary semicolon
block: remove unwanted semicolons
Revert "block: Remove extra discard_alignment from hd_struct."
nbd: adjust 'max_part' according to part_shift
nbd: limit module parameters to a sane value
nbd: pass MSG_* flags to kernel_recvmsg()
block: improve the bio_add_page() and bio_add_pc_page() descriptions
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git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin:
Blackfin: strncpy: fix handling of zero lengths
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git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
asm-generic/unistd.h: support sendmmsg syscall
tile: enable CONFIG_BUGVERBOSE
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* 'linux-next' of git://git.infradead.org/ubifs-2.6:
UBIFS: fix-up free space earlier
UBIFS: intialize LPT earlier
UBIFS: assert no fixup when writing a node
UBIFS: fix clean znode counter corruption in error cases
UBIFS: fix memory leak on error path
UBIFS: fix shrinker object count reports
UBIFS: fix recovery broken by the previous recovery fix
UBIFS: amend ubifs_recover_leb interface
UBIFS: introduce a "grouped" journal head flag
UBIFS: supress false error messages
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest:
ktest: Ignore unset values of the minconfig in config_bisect
ktest: Fix result of rebooting the kernel
ktest: Fix off-by-one in config bisect result
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
ARM: mach-shmobile: add DMAC clock definitions on SH7372
ARM: arch-shmobile: support SDHI card detection on mackerel, using a GPIO
sh_mobile_meram: MERAM platform data for LCDC
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
dmaengine: shdma: fix a regression: initialise DMA channels for memcpy
dmaengine: shdma: Fix up fallout from runtime PM changes.
Revert "clocksource: sh_cmt: Runtime PM support"
Revert "clocksource: sh_tmu: Runtime PM support"
sh: Fix up asm-generic/ptrace.h fallout.
sh64: Move from P1SEG to CAC_ADDR for consistent sync.
sh64: asm/pgtable.h needs asm/mmu.h
sh: asm/tlb.h needs linux/swap.h
sh: mark DMA slave ID 0 as invalid
sh: Update shmin to reflect PIO dependency.
sh: arch/sh/kernel/process_32.c needs linux/prefetch.h.
sh: add MMCIF runtime PM support on ecovec
sh: switch ap325rxa to dynamically manage the platform camera
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This reverts commit ed0bd2333cffc3d856db9beb829543c1dfc00982.
Since we reverted the TTY API change, we should revert the ASoC update
to it too.
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This reverts commit b1c43f82c5aa265442f82dba31ce985ebb7aa71c.
It was broken in so many ways, and results in random odd pty issues.
It re-introduced the buggy schedule_work() in flush_to_ldisc() that can
cause endless work-loops (see commit a5660b41af6a: "tty: fix endless
work loop when the buffer fills up").
It also used an "unsigned int" return value fo the ->receive_buf()
function, but then made multiple functions return a negative error code,
and didn't actually check for the error in the caller.
And it didn't actually work at all. BenH bisected down odd tty behavior
to it:
"It looks like the patch is causing some major malfunctions of the X
server for me, possibly related to PTYs. For example, cat'ing a
large file in a gnome terminal hangs the kernel for -minutes- in a
loop of what looks like flush_to_ldisc/workqueue code, (some ftrace
data in the quoted bits further down).
...
Some more data: It -looks- like what happens is that the
flush_to_ldisc work queue entry constantly re-queues itself (because
the PTY is full ?) and the workqueue thread will basically loop
forver calling it without ever scheduling, thus starving the consumer
process that could have emptied the PTY."
which is pretty much exactly the problem we fixed in a5660b41af6a.
Milton Miller pointed out the 'unsigned int' issue.
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reported-by: Milton Miller <miltonm@bga.com>
Cc: Stefan Bigler <stefan.bigler@keymile.com>
Cc: Toby Gray <toby.gray@realvnc.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into for-davem
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CM6206: Turn off de-emphasis channel status bit in S/PDIF output.
Signed-off-by: Eric Lammerts <eric@lammerts.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The free space fixup is currently initiated during mount after the call to
ubifs_write_master() which results in a write to PEBs; this has been observed
with the patch 'assert no fixup when writing a node' applied:
Move the free space fixup on mount to before the calls to
ubifs_recover_inl_heads() and ubifs_write_master(). This results in no
assertions with the previously mentioned patch applied.
Artem: tweaked the patch a bit
Signed-off-by: Ben Gardiner <bengardiner@nanometrics>
Reviewed-by: Matthew L. Creech <mlcreech@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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