- 29 Apr, 2008 1 commit
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Aneesh Kumar K.V authored
Fail migrate if we allocated new blocks via mmap write. If we write to holes in the file via mmap, we end up allocating new blocks. This block allocation happens without taking inode->i_mutex. Since migrate is protected by i_mutex and migrate expects that no new blocks get allocated during migrate, fail migrate if new blocks get allocated. We can't take inode->i_mutex in the mmap write path because that would result in a locking order violation between i_mutex and mmap_sem. Also adding a separate rw_sempahore for protection is really high overhead for a rare operation such as migrate. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 17 Apr, 2008 1 commit
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Aneesh Kumar K.V authored
If the preallocated area is small zero out the full extent instead of splitting them. This should avoid the "write every alternate block" problem that could grow the number of extents dramatically. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 29 Apr, 2008 5 commits
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Aneesh Kumar K.V authored
This patch handles possible ENOSPC errors when writing to an uninitialized extent in case the filesystem is full. A write to a prealloc area causes the split of an unititalized extent into initialized and uninitialized extents. If we don't have space to add new extent information, instead of returning error, convert the existing uninitialized extent to initialized one. We need to zero out the blocks corresponding to the entire extent to prevent uninitialized data reaching userspace. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Aneesh Kumar K.V authored
ext4 uses ZERO_PAGE(0) to zero out blocks. We need to export different symbols in different arches for the usage of ZERO_PAGE in modules. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Aneesh Kumar K.V authored
ext4 uses ZERO_PAGE(0) to zero out blocks. We need to export different symbols in different arches for the usage of ZERO_PAGE in modules. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Aneesh Kumar K.V authored
ext4 uses ZERO_PAGE(0) to zero out blocks. We need to export different symbols in different arches for the usage of ZERO_PAGE in modules. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Aneesh Kumar K.V authored
This patch enables extent-formatted normal symlinks. Using extents format allows a symlink to refer to a block number larger than 2^32 on large filesystems. We still don't enable extent format for fast symlinks, which are contained in the inode itself. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 17 Apr, 2008 1 commit
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Aneesh Kumar K.V authored
Put the old extent details back if we fail to split the uninitialized extent. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 30 Apr, 2008 1 commit
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Josef Bacik authored
The "resize" option won't be noticed as it comes after the NULL option, so if you try to mount (or in this case remount) with that option it won't be recognized. Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Josef Bacik <jbacik@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 17 Apr, 2008 1 commit
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Hisashi Hifumi authored
Currently fdatasync is identical to fsync in ext3. I think fdatasync should skip journal flush in data=ordered and data=writeback mode when it overwrites to already-instantiated blocks on HDD. When I_DIRTY_DATASYNC flag is not set, fdatasync should skip journal writeout because this indicates only atime or/and mtime updates. Following patch is the same approach of ext2's fsync code(ext2_sync_file). I did a performance test using the sysbench. #sysbench --num-threads=128 --max-requests=50000 --test=fileio --file-total-size=128G --file-test-mode=rndwr --file-fsync-mode=fdatasync run The result on ext3 was: -2.6.24 Operations performed: 0 Read, 50080 Write, 59600 Other = 109680 Total Read 0b Written 782.5Mb Total transferred 782.5Mb (12.116Mb/sec) 775.45 Requests/sec executed Test execution summary: total time: 64.5814s total number of events: 50080 total time taken by event execution: 3713.9836 per-request statistics: min: 0.0000s avg: 0.0742s max: 0.9375s approx. 95 percentile: 0.2901s Threads fairness: events (avg/stddev): 391.2500/23.26 execution time (avg/stddev): 29.0155/1.99 -2.6.24-patched Operations performed: 0 Read, 50009 Write, 61596 Other = 111605 Total Read 0b Written 781.39Mb Total transferred 781.39Mb (16.419Mb/sec) 1050.83 Requests/sec executed Test execution summary: total time: 47.5900s total number of events: 50009 total time taken by event execution: 2934.5768 per-request statistics: min: 0.0000s avg: 0.0587s max: 0.8938s approx. 95 percentile: 0.1993s Threads fairness: events (avg/stddev): 390.6953/22.64 execution time (avg/stddev): 22.9264/1.17 Filesystem I/O throughput was improved. Signed-off-by :Hisashi Hifumi <hifumi.hisashi@oss.ntt.co.jp> Acked-by: Jan Kara <jack@suse.cz> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 30 Apr, 2008 1 commit
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Josef Bacik authored
This patch fix a panic while running fsfuzzer. We are improperly checking the return of ext4_orphan_get. Signed-off-by: Josef Bacik <jbacik@redhat.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 17 Apr, 2008 2 commits
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Josef Bacik authored
There are several cases where the running transaction can get buffers added to its BJ_Metadata list which it never dirtied, which makes its t_nr_buffers counter end up larger than its t_outstanding_credits counter. This will cause issues when starting new transactions as while we are logging buffers we decrement t_outstanding_buffers, so when t_outstanding_buffers goes negative, we will report that we need less space in the journal than we actually need, so transactions will be started even though there may not be enough room for them. In the worst case scenario (which admittedly is almost impossible to reproduce) this will result in the journal running out of space. The fix is to only refile buffers from the committing transaction to the running transactions BJ_Modified list when b_modified is set on that journal, which is the only way to be sure if the running transaction has modified that buffer. This patch also fixes an accounting error in journal_forget, it is possible that we can call journal_forget on a buffer without having modified it, only gotten write access to it, so instead of freeing a credit, we only do so if the buffer was modified. The assert will help catch if this problem occurs. Without these two patches I could hit this assert within minutes of running postmark, with them this issue no longer arises. Cc: <linux-ext4@vger.kernel.org> Cc: Jan Kara <jack@ucw.cz> Signed-off-by: Josef Bacik <jbacik@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Josef Bacik authored
Currently at the start of a journal commit we loop through all of the buffers on the committing transaction and clear the b_modified flag (the flag that is set when a transaction modifies the buffer) under the j_list_lock. The problem is that everywhere else this flag is modified only under the jbd2 lock buffer flag, so it will race with a running transaction who could potentially set it, and have it unset by the committing transaction. This is also a big waste, you can have several thousands of buffers that you are clearing the modified flag on when you may not need to. This patch removes this code and instead clears the b_modified flag upon entering do_get_write_access/journal_get_create_access, so if that transaction does indeed use the buffer then it will be accounted for properly, and if it does not then we know we didn't use it. That will be important for the next patch in this series. Tested thoroughly by myself using postmark/iozone/bonnie++. Cc: <linux-ext4@vger.kernel.org> Cc: Jan Kara <jack@ucw.cz> Signed-off-by: Josef Bacik <jbacik@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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- 29 Apr, 2008 27 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds authored
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Provide ACPI fixup for /proc/cpuinfo/physical_id [IA64] Remove printk noise on unimplemented SAL_PHYSICAL_ID_INFO [IA64] allocate multiple contiguous pages via uncached allocator [IA64] bugfix: nptcg breaks cpu-hotadd
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Linus Torvalds authored
Merge branch 'for-linus' of 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: Integrate Smack with Audit Security: Typecast CAP_*_SET macros Security: Make secctx_to_secid() take const secdata
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Ahmed S. Darwish authored
Setup the new Audit hooks for Smack. SELinux Audit rule fields are recycled to avoid `auditd' userspace modifications. Currently only equality testing is supported on labels acting as a subject (AUDIT_SUBJ_USER) or as an object (AUDIT_OBJ_USER). Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Acked-by: Casey Schaufler <casey@schaufler-ca.com>
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David Howells authored
Cast the CAP_*_SET macros to be of kernel_cap_t type to avoid compiler warnings. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
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David Howells authored
Make secctx_to_secid() take constant secdata. Signed-off-by: David Howells <dhowells@redhat.com> 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-devLinus Torvalds authored
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] linux/libata.h: reorganize ata_device struct members a bit ahci: SB600 ahci can't do MSI, blacklist that capability libata: More TSSTcorp pain, keep in sync with legacy IDE pata_via: Fix 6410 misdetect [libata] pata_atiixp: fix PIO timing data misprogramming
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Linus Torvalds authored
* master.kernel.org:/home/rmk/linux-2.6-arm: (26 commits) [ARM] pxa: fix 1c104e0e [ARM] serial: s3c2410: platform_get_irq() may return signed unnoticed [ARM] am79c961a: platform_get_irq() may return signed unnoticed [ARM] Feroceon: Feroceon-specific WA-cache compatible {copy,clear}_user_page() [ARM] Feroceon: fix function alignment in proc-feroceon.S [ARM] Orion: catch a couple more alternative spellings of PCIe [ARM] Orion: fix orion-ehci platform resource end addresses [ARM] Orion: fix ->map_irq() PCIe bus number check [ARM] Orion: fix ioremap() optimization [ARM] feroceon: remove CONFIG_CPU_CACHE_ROUND_ROBIN check [ARM] feroceon: remove CONFIG_CPU_DCACHE_WRITETHROUGH check kprobes/arm: fix decoding of arithmetic immediate instructions kprobes/arm: fix cache flush address for instruction stub [ARM] 5022/1: Race in ARM MMCI PL18x driver, V2 [ARM] 5021/1: at91: buildfix for sam9263 + PM [ARM] 5018/1: RealView: Fix the ARM11MPCore Oprofile compilation [ARM] 5016/1: AT91: typo in mci configuration for at91cap at91sam9263 [ARM] 5017/1: pxa3xx: Report unsupported wakeup sources in pxa3xx_set_wake() [ARM] 5020/1: magician: remove __devinit marker from pasic3_leds_info [ARM] 5014/1: Cleanup reset state before entering suspend or resetting. ...
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Alex Chiang authored
Legacy HP ia64 platforms currently cannot provide /proc/cpuinfo/physical_id due to legacy SAL/PAL implementations. However, that physical topology information can be obtained via ACPI. Provide an interface that gives ACPI one last chance to provide physical_id for these legacy platforms. This logic only comes into play iff: - ACPI actually provides slot information for the CPU - we lack a valid socket_id Otherwise, we don't do anything. Since x86 uses the ACPI processor driver as well, we provide a nop stub function for arch_fix_phys_package_id() in asm-x86/topology.h Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvbLinus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (28 commits) V4L-DVB(7789a): cx18: fix symbol conflict with ivtv driver V4L/DVB (7789): tuner: remove static dependencies on analog tuner sub-modules V4L/DVB (7785): [2.6 patch] make mt9{m001,v022}_controls[] static V4L/DVB (7786): cx18: new driver for the Conexant CX23418 MPEG encoder chip V4L/DVB (7783): drivers/media/dvb/frontends/s5h1420.c: printk fix V4L/DVB (7782): pvrusb2: Driver is no longer experimental V4L/DVB (7781): pvrusb2-dvb: include dvb support by default and update Kconfig help text V4L/DVB (7780): pvrusb2: always enable support for OnAir Creator / HDTV USB2 V4L/DVB (7779): pvrusb2-dvb: quiet down noise in kernel log for feed debug Rename common tuner Kconfig names to use the same Fix V4L/DVB core help messages V4L/DVB (7769): Move other terrestrial tuners to common/tuners V4L/DVB (7768): reorganize some DVB-S Kconfig items V4L/DVB(7767): Move tuners to common/tuners V4L/DVB (7766): saa7134: add another PCI ID for Beholder M6 V4L/DVB (7765): Add support for Beholder BeholdTV H6 V4L/DVB (7763): ivtv: add tuner support for the AverMedia M116 V4L/DVB (7762): ivtv: fix tuner detection for PAL-N/Nc V4L/DVB (7761): ivtv: increase the DMA timeout from 100 to 300 ms V4L/DVB (7759): ivtv: increase version number to 1.2.1 ...
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git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds authored
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c: Convert most new-style drivers to use module aliasing i2c: Add support for device alias names i2c-amd756-s4882: Fix an error path i2c: Drop unused RTC driver IDs i2c/tps65010: Add missing intialization of client data i2c-sis5595: Minor cleanups in sis5595_access i2c-piix4: Minor cleanups i2c: Spelling fix (successful) i2c-stub: No newline in parameter description
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Jeff Garzik authored
Put the big stuff at the end, to prepare for upcoming changes (and also hopefully achieve nicer packing of remaining members). Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Tejun Heo authored
This fixes bz#10507. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Shane Huang <Shane.Huang@amd.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Mauro Carvalho Chehab authored
LD drivers/media/video/built-in.o drivers/media/video/cx18/built-in.o: In function `get_service_set': /home/v4l/tokernel/git/drivers/media/video/cx18/cx18-ioctl.c:118: multiple definition of `get_service_set' drivers/media/video/ivtv/built-in.o:/home/v4l/tokernel/git/drivers/media/video/ivtv/ivtv-ioctl.c:119: first defined here drivers/media/video/cx18/built-in.o: In function `expand_service_set': /home/v4l/tokernel/git/drivers/media/video/cx18/cx18-ioctl.c:92: multiple definition of `expand_service_set' drivers/media/video/ivtv/built-in.o:/home/v4l/tokernel/git/drivers/media/video/ivtv/ivtv-ioctl.c:92: first defined here drivers/media/video/cx18/built-in.o: In function `service2vbi': /home/v4l/tokernel/git/drivers/media/video/cx18/cx18-ioctl.c:44: multiple definition of `service2vbi' drivers/media/video/ivtv/built-in.o:/home/v4l/tokernel/git/drivers/media/video/ivtv/ivtv-ioctl.c:42: first defined here make[2]: ** [drivers/media/video/built-in.o] Erro 1 make[1]: ** [drivers/media/video] Erro 2 make: ** [drivers/media/] Erro 2 Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Michael Krufky authored
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Adrian Bunk authored
This patch makes the needlessly global mt9{m001,v022}_controls[] static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Hans Verkuil authored
Many thanks to Steve Toth from Hauppauge and Nattu Dakshinamurthy from Conexant for their support. I am in particular thankful to Hauppauge since without their help this driver would not exist. It should also be noted that Steve did the work to get the DVB part up and running. Thank you! Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: G. Andrew Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Andrew Morton authored
drivers/media/dvb/frontends/s5h1420.c: In function `s5h1420_setsymbolrate': drivers/media/dvb/frontends/s5h1420.c:484: warning: long long unsigned int format, u64 arg (arg 2) We do not know what type the architecture uses for u64. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Mike Isely authored
This driver has been in-kernel and reasonably stable for well over a year. It is in a stable form and is known to work well. Remove its experimental status. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Michael Krufky authored
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Michael Krufky authored
This was a build option in the past, to avoid conflicts with the cxusb module for digital televsion support. Now that dtv mode support has been merged into pvrusb2, the OnAir devices are fully supported by this single module. This no longer should be a build option. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Michael Krufky authored
Get rid of the noise in dmesg during dvb feed changes, unless the appropriate debug trace flag is enabled. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Reviewed-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Mauro Carvalho Chehab authored
namespace for all of them.
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Mauro Carvalho Chehab authored
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Mauro Carvalho Chehab authored
Those tuners are currently used only under media/dvb. However, they can support also analog TV. Better to move them to the same place as the other hybrid tuners. This would make easier to use those tuners also by analog drivers. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Mauro Carvalho Chehab authored
There are some DVB-S tuners together with DVB-S tags, while others together with tuners. Better to have all of them together. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Mauro Carvalho Chehab authored
There were several issues in the past, caused by the hybrid tuner design, since now, the same tuner can be used by drivers/media/dvb and drivers/media/video. Kconfig items were rearranged, to split V4L/DVB core from their drivers. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Igor Kuznetsov authored
Signed-off-by: Igor Kuznetsov <igk@igk.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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