01 Aug, 2011
11 commits
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Remove the detached-dentry counter from shrink_dcache_for_umount_subtree() as
the value it computes is no longer used as of commit
312d3ca856d369bb04d0443846b85b4cdde6fa8a which made the nr_dentry counters
summed per-CPU rather than global atomic.Signed-off-by: David Howells
Signed-off-by: Al Viro -
again, that's what all callers pass to it
Signed-off-by: Al Viro
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... seeing that this is what all callers pass to it anyway.
Signed-off-by: Al Viro
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... so that &inode->i_mode could be passed to it
Signed-off-by: Al Viro
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so we can pass &inode->i_mode to it
Signed-off-by: Al Viro
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bd_super is currently reset to NULL in kill_block_super() so we rely on previous
users of the block_device object to initialise this value for the next user.
This quirk was exposed on RHEL5 when a third party filesystem did not always use
kill_block_super() and therefore bd_super wasn't being reset when a block_device
object was recycled within the cache. This may not be a problem upstream but
makes sense to be defensive.Signed-off-by: Lachlan McIlroy
Reviewed-by: Eric Sandeen
Signed-off-by: Al Viro -
inode_lru_list_del() is expensive because of per superblock lru locking,
while some inodes are not in lru list.Adding a check in iput_final() can speedup pipe/sockets workloads on
SMP.Signed-off-by: Eric Dumazet
Signed-off-by: Al Viro -
Some inodes (pipes, sockets, ...) are not hashed, no need to take
contended inode_hash_lock at dismantle time.nice speedup on SMP machines on socket intensive workloads.
Signed-off-by: Eric Dumazet
Signed-off-by: Al Viro -
Some inodes (pipes, sockets, ...) are not in bdi writeback list.
evict() can avoid calling inode_wb_list_del() and its expensive spinlock
by checking inode i_wb_list being empty or not.At this point, no other cpu/user can concurrently manipulate this inode
i_wb_listSigned-off-by: Eric Dumazet
Signed-off-by: Al Viro -
Autofs may set the DCACHE_NEED_AUTOMOUNT flag on negative dentries. These
need attention from the automounter daemon regardless of the LOOKUP_FOLLOW flag.Signed-off-by: David Howells
Acked-by: Ian Kent
Signed-off-by: Al Viro -
In btrfs we have 2 indexes for inodes. One is for readdir, it's in this nice
sequential order and works out brilliantly for readdir. However if you use ls,
it usually stat's each file it gets from readdir. This is where the second
index comes in, which is based on a hash of the name of the file. So then the
lookup has to lookup this index, and then lookup the inode. The index lookup is
going to be in random order (since its based on the name hash), which gives us
less than stellar performance. Since we know the inode location from the
readdir index, I create a dummy dentry and copy the location key into
dentry->d_fsdata. Then on lookup if we have d_fsdata we use that location to
lookup the inode, avoiding looking up the other directory index. Thanks,Signed-off-by: Josef Bacik
Signed-off-by: Al Viro
28 Jul, 2011
2 commits
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create_path() on something without a single / in it will return err
without initializing it. It actually can't happen (we call that thing
only if create on the same path returns -ENOENT, which won't happen
happen for single-component path), but in this case initializing err
to 0 is more than making compiler to STFU - would be the right thing
to return on such paths; the function creates a parent directory of
given pathname and in that case it has no work to do...Signed-off-by: Al Viro
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Signed-off-by: Al Viro
27 Jul, 2011
27 commits
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
merge fchmod() and fchmodat() guts, kill ancient broken kludge
xfs: fix misspelled S_IS...()
xfs: get rid of open-coded S_ISREG(), etc.
vfs: document locking requirements for d_move, __d_move and d_materialise_unique
omfs: fix (mode & S_IFDIR) abuse
btrfs: S_ISREG(mode) is not mode & S_IFREG...
ima: fmode_t misspelled as mode_t...
pci-label.c: size_t misspelled as mode_t
jffs2: S_ISLNK(mode & S_IFMT) is pointless
snd_msnd ->mode is fmode_t, not mode_t
v9fs_iop_get_acl: get rid of unused variable
vfs: dont chain pipe/anon/socket on superblock s_inodes list
Documentation: Exporting: update description of d_splice_alias
fs: add missing unlock in default_llseek() -
* 'next/devel2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (47 commits)
OMAP: Add debugfs node to show the summary of all clocks
OMAP2+: hwmod: Follow the recommended PRCM module enable sequence
OMAP2+: clock: allow per-SoC clock init code to prevent clockdomain calls from clock code
OMAP2+: clockdomain: Add per clkdm lock to prevent concurrent state programming
OMAP2+: PM: idle clkdms only if already in idle
OMAP2+: clockdomain: add clkdm_in_hwsup()
OMAP2+: clockdomain: Add 2 APIs to control clockdomain from hwmod framework
OMAP: clockdomain: Remove redundant call to pwrdm_wait_transition()
OMAP4: hwmod: Introduce the module control in hwmod control
OMAP4: cm: Add two new APIs for modulemode control
OMAP4: hwmod data: Add modulemode entry in omap_hwmod structure
OMAP4: hwmod data: Add PRM context register offset
OMAP4: prm: Remove deprecated functions
OMAP4: prm: Replace warm reset API with the offset based version
OMAP4: hwmod: Replace RSTCTRL absolute address with offset macros
OMAP: hwmod: Wait the idle status to be disabled
OMAP4: hwmod: Replace CLKCTRL absolute address with offset macros
OMAP2+: hwmod: Init clkdm field at boot time
OMAP4: hwmod data: Add clock domain attribute
OMAP4: clock data: Add missing divider selection for auxclks
... -
* 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (128 commits)
ARM: S5P64X0: External Interrupt Support
ARM: EXYNOS4: Enable MFC on Samsung NURI
ARM: EXYNOS4: Enable MFC on universal_c210
ARM: S5PV210: Enable MFC on Goni
ARM: S5P: Add support for MFC device
ARM: EXYNOS4: Add support FIMD on SMDKC210
ARM: EXYNOS4: Add platform device and helper functions for FIMD
ARM: EXYNOS4: Add resource definition for FIMD
ARM: EXYNOS4: Change devname for FIMD clkdev
ARM: SAMSUNG: Add IRQ_I2S0 definition
ARM: SAMSUNG: Add platform device for idma
ARM: EXYNOS4: Add more registers to be saved and restored for PM
ARM: EXYNOS4: Add more register addresses of CMU
ARM: EXYNOS4: Add platform device for dwmci driver
ARM: EXYNOS4: configure rtc-s3c on NURI
ARM: EXYNOS4: configure MAX8903 secondary charger on NURI
ARM: EXYNOS4: configure ADC on NURI
ARM: EXYNOS4: configure MAX17042 fuel gauge on NURI
ARM: EXYNOS4: configure regulators and PMIC(MAX8997) on NURI
ARM: EXYNOS4: Increase NR_IRQS for devices with more IRQs
...Fix up tons of silly conflicts:
- arch/arm/mach-davinci/include/mach/psc.h
- arch/arm/mach-exynos4/Kconfig
- arch/arm/mach-exynos4/mach-smdkc210.c
- arch/arm/mach-exynos4/pm.c
- arch/arm/mach-imx/mm-imx1.c
- arch/arm/mach-imx/mm-imx21.c
- arch/arm/mach-imx/mm-imx25.c
- arch/arm/mach-imx/mm-imx27.c
- arch/arm/mach-imx/mm-imx31.c
- arch/arm/mach-imx/mm-imx35.c
- arch/arm/mach-mx5/mm.c
- arch/arm/mach-s5pv210/mach-goni.c
- arch/arm/mm/Kconfig -
* 'next/board' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
ARM: S3C64XX: Configure backup battery charger on Cragganmore
ARM: S3C64XX: Fix WM8915 IRQ polarity on Cragganmore
ARM: S3C64XX: Configure supplies for all Cragganmore regulators
ARM: S3C64XX: Refresh Cragganmore support
ARM: S3C64XX: Initial support for Wolfson/Simtec Cragganmore/Banff
OMAP4: Keyboard: Mux changes in the board file
omap: blaze: add mmc5/wl1283 device support
omap: 4430SDP: Register the card detect GPIO properly
arm: omap3: cm-t35: add support for cm-t3730
OMAP3: beagle: add support for beagleboard xM revision C
OMAP3: rx-51: Add full regulator definitions
omap: rx51: Platform support for lp5523 led chip -
…git/arm/linux-arm-soc
* 'next/cross-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
ARM: Consolidate the clkdev header files
ARM: set vga memory base at run-time
ARM: convert PCI defines to variables
ARM: pci: make pcibios_assign_all_busses use pci_has_flag
ARM: remove unnecessary mach/hardware.h includes
pci: move microblaze and powerpc pci flag functions into asm-generic
powerpc: rename ppc_pci_*_flags to pci_*_flagsFix up conflicts in arch/microblaze/include/asm/pci-bridge.h
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* 'next/fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (24 commits)
ASoC: omap: McBSP: fix build breakage on OMAP1
OMAP: hwmod: fix the i2c-reset timeout during bootup
I2C: OMAP2+: add correct functionality flags to all omap2plus i2c dev_attr
I2C: OMAP2+: Tag all OMAP2+ hwmod defintions with I2C IP revision
I2C: OMAP1/OMAP2+: create omap I2C functionality flags for each cpu_... test
I2C: OMAP2+: Introduce I2C IP versioning constants
I2C: OMAP2+: increase omap_i2c_dev_attr flags from u8 to u32
I2C: OMAP2+: Set hwmod flags to only allow 16-bit accesses to i2c
OMAP4: hwmod data: Change DSS main_clk scheme
OMAP4: powerdomain data: Remove unsupported MPU powerdomain state
OMAP4: clock data: Keep GPMC clocks always enabled and hardware managed
OMAP4: powerdomain data: Fix core mem states and missing cefuse flag
OMAP2+: PM: Initialise sleep_switch to a non-valid value
OMAP4: hwmod data: Modify DSS opt clocks
OMAP4: iommu: fix clock name
omap: iovmm: s/sg_dma_len(sg)/sg->length/
omap: iommu: fix pte programming
arm: omap3: cm-t35: fix slow path warning
arm: omap3: cm-t35: minor comments fixes
omap: ZOOM: QUART: Request reset GPIO
... -
* 'next/soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
MAINTAINERS: add maintainer of CSR SiRFprimaII machine
ARM: CSR: initializing L2 cache
ARM: CSR: mapping early DEBUG_LL uart
ARM: CSR: Adding CSR SiRFprimaII board support
OMAP4: clocks: Update the clock tree with 4460 clock nodes
OMAP4: PRCM: OMAP4460 specific PRM and CM register bitshifts
OMAP4: ID: add omap_has_feature for max freq supported
OMAP: ID: introduce chip detection for OMAP4460
ARM: Xilinx: merge board file into main platform code
ARM: Xilinx: Adding Xilinx board supportFix up conflicts in arch/arm/mach-omap2/cm-regbits-44xx.h
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* 'next-i2c' of git://git.fluff.org/bjdooks/linux:
i2c-eg20t : Fix the issue of Combined R/W transfer mode
i2c-eg20t : Support Combined R/W transfer mode
i2c: Tegra: Add DeviceTree support -
Only a few core funcs need to be implemented for SMP systems, so allow the
arches to override them while getting the rest for free.At least, this is enough to allow the Blackfin SMP port to use things.
Signed-off-by: Mike Frysinger
Cc: Arun Sharma
Cc: Arnd Bergmann
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Since arches are expected to implement this guy, add a common version for
people the same way as atomic_clear_mask is handled.Signed-off-by: Mike Frysinger
Cc: Arun Sharma
Cc: Arnd Bergmann
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The atomic helpers are supposed to take an atomic_t pointer, not a random
unsigned long pointer. So convert atomic_clear_mask over.While we're here, also add some nice documentation to the func.
Signed-off-by: Mike Frysinger
Cc: Arun Sharma
Cc: Arnd Bergmann
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We already declared inc/dec helpers, so we don't need to call the
atomic_{add,sub}_return funcs directly.Signed-off-by: Mike Frysinger
Cc: Arun Sharma
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This clarifies the differences between and
Signed-off-by: Arun Sharma
Suggested-by: Mike Frysinger
Cc: Eric Dumazet
Cc: Ingo Molnar
Cc: David Miller
Acked-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
After changing all consumers of atomics to include , we
ran into some compile time errors due to this dependency chain:linux/atomic.h
-> asm/atomic.h
-> asm-generic/atomic-long.hwhere atomic-long.h could use funcs defined later in linux/atomic.h
without a prototype. This patches moves the code that includes
asm-generic/atomic*.h to linux/atomic.h.Archs that need need to select
CONFIG_GENERIC_ATOMIC64 from now on (some of them used to include it
unconditionally).Compile tested on i386 and x86_64 with allnoconfig.
Signed-off-by: Arun Sharma
Cc: Eric Dumazet
Cc: Ingo Molnar
Cc: David Miller
Acked-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This is in preparation for more generic atomic primitives based on
__atomic_add_unless.Signed-off-by: Arun Sharma
Signed-off-by: Hans-Christian Egtvedt
Reviewed-by: Eric Dumazet
Cc: Ingo Molnar
Cc: David Miller
Acked-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This allows us to move duplicated code in
(atomic_inc_not_zero() for now) toSigned-off-by: Arun Sharma
Reviewed-by: Eric Dumazet
Cc: Ingo Molnar
Cc: David Miller
Cc: Eric Dumazet
Acked-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The majority of architectures implement ext2 atomic bitops as
test_and_{set,clear}_bit() without spinlock.This adds this type of generic implementation in ext2-atomic-setbit.h and
use it wherever possible.Signed-off-by: Akinobu Mita
Suggested-by: Andreas Dilger
Suggested-by: Arnd Bergmann
Acked-by: Arnd Bergmann
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This changes should_fail_request() to more usable wrapper function of
should_fail(). It can avoid putting #ifdef CONFIG_FAIL_MAKE_REQUEST in
the middle of a function.Signed-off-by: Akinobu Mita
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Now cleanup_fault_attr_dentries() recursively removes a directory, So we
can simplify the error handling in the initialization code and no need
to hold dentry structs for each debugfs file.Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Now cleanup_fault_attr_dentries() recursively removes a directory, So we
can simplify the error handling in the initialization code and no need
to hold dentry structs for each debugfs file.Signed-off-by: Akinobu Mita
Cc: Christoph Lameter
Cc: Pekka Enberg
Cc: Matt Mackall
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use debugfs_remove_recursive() to simplify initialization and
deinitialization of fault injection debugfs files.Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Minor cosmetic changes for simple attribute of stacktrace_depth:
- use min_t()
- reduce #ifdef by moving a function
- do not use partly capitalized function nameSigned-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
should_fail_srandom() does not exist.
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
No need to include linux/kallsyms.h.
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The size of the dump is currently set using the RECORD_SIZE macro which
is set to a page size. This patch makes the record size a module
parameter and allows it to be set through platform data as well to allow
larger dumps if needed.Signed-off-by: Sergiu Iordache
Acked-by: Marco Stornelli
Cc: "Ahmed S. Darwish"
Cc: Artem Bityutskiy
Cc: Kyungmin Park
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The platform driver currently allows setting the mem_size and
mem_address.ince dump_oops is also a module parameter it would be more consistent if
it could be set through platform data as well.Signed-off-by: Sergiu Iordache
Acked-by: Marco Stornelli
Cc: "Ahmed S. Darwish"
Cc: Artem Bityutskiy
Cc: Kyungmin Park
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add new line to each print.
Signed-off-by: Marco Stornelli
Reported-by: Stevie Trujillo
Cc: Kyungmin Park
Cc: Américo Wang
Cc: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
