- 09 10月, 2008 1 次提交
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由 Aneesh Kumar K.V 提交于
This patch hooks the ext3 to ext4 migrate interface to EXT4_IOC_SETFLAGS ioctl. The userspace interface is via chattr +e. We only allow setting extent flags. Clearing extent flag (migrating from ext4 to ext3) is not supported. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 14 9月, 2008 1 次提交
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由 Aneesh Kumar K.V 提交于
The migrate ioctl writes to the filsystem, so we need to elevate the write count. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 08 9月, 2008 1 次提交
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由 Li Zefan 提交于
If there group descriptors are corrupted we need unlock the block group lock before returning from the function; else we will oops when freeing a spinlock which is still being held. Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 17 9月, 2008 1 次提交
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由 Theodore Ts'o 提交于
Calculate the journal device name once and stash it away in the journal_s structure. This avoids needing to call bdevname() everywhere and reduces stack usage by not needing to allocate an on-stack buffer. In addition, we eliminate the '/' that can appear in device names (e.g. "cciss/c0d0p9" --- see kernel bugzilla #11321) that can cause problems when creating proc directory names, and include the inode number to support ocfs2 which creates multiple journals with different inode numbers. Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 14 9月, 2008 1 次提交
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由 Alexey Dobriyan 提交于
ext4 creates per-suberblock directory in /proc/ext4/ . Name used as basis is taken from bdevname, which, surprise, can contain slash. However, proc while allowing to use proc_create("a/b", parent) form of PDE creation, assumes that parent/a was already created. bdevname in question is 'cciss/c0d0p9', directory is not created and all this stuff goes directly into /proc (which is real bug). Warning comes when _second_ partition is mounted. http://bugzilla.kernel.org/show_bug.cgi?id=11321Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 08 9月, 2008 1 次提交
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由 Frederic Bohe 提交于
This fixes a bug which prevented the newly created inodes after a resize from being used on filesystems with flex_bg. Signed-off-by: NFrederic Bohe <frederic.bohe@bull.net> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 09 10月, 2008 1 次提交
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由 Eric Sandeen 提交于
Note: some people thinks this represents a security bug, since it might make the system go away while it is printing a large number of console messages, especially if a serial console is involved. Hence, it has been assigned CVE-2008-3528, but it requires that the attacker either has physical access to your machine to insert a USB disk with a corrupted filesystem image (at which point why not just hit the power button), or is otherwise able to convince the system administrator to mount an arbitrary filesystem image (at which point why not just include a setuid shell or world-writable hard disk device file or some such). Me, I think they're just being silly. --tytso Signed-off-by: NEric Sandeen <sandeen@redhat.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu> Cc: linux-ext4@vger.kernel.org Cc: Eugene Teo <eugeneteo@kernel.sg>
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- 14 9月, 2008 2 次提交
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由 Aneesh Kumar K.V 提交于
With delayed allocation we use i_data_sem to update i_disksize. We need to update i_disksize only if the new size specified is greater than the current value and we need to make sure we don't race with other i_disksize update. With delayed allocation we will switch to the write_begin function for non-delayed allocation if we are low on free blocks. This means the write_begin function for non-delayed allocation also needs to use the same locking. We also need to check and update i_disksize even if the new size is less that inode.i_size because of delayed allocation. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Aneesh Kumar K.V 提交于
For blocksize < pagesize we need to remove blocks that got allocated in block_write_begin() if we fail with ENOSPC for later blocks. block_write_begin() internally does this if it allocated pages locally. This makes sure we don't have blocks outside inode.i_size during ENOSPC. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 09 9月, 2008 3 次提交
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由 Aneesh Kumar K.V 提交于
When we truncate files, the meta-data blocks released are not reused untill we commit the truncate transaction. That means delayed get_block request will return ENOSPC even if we have free blocks left. Force a journal commit and retry block allocation if we get ENOSPC with free blocks left. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Aneesh Kumar K.V 提交于
Make sure we don't add the inode to the journal handle until after the block allocation, so that a journal commit will not include the inode in case of block allocation failure. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Aneesh Kumar K.V 提交于
We run into ENOSPC error on nonmballoc ext4, even when there is free blocks on the filesystem. The patch includes two changes: a) Set reservation to NULL if we trying to allocate near group_target_block from the goal group if the free block in the group is less than windows. This should give us a better chance to allocate near group_target_block. This also ensures that if we are not allocating near group_target_block then we don't trun off reservation. This should enable us to allocate with reservation from other groups that have large free blocks count. b) we don't need to check the window size if the block reservation is off. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 09 10月, 2008 2 次提交
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由 Aneesh Kumar K.V 提交于
This patch converts some usage of ext4_fsblk_t to s64. This is needed so that some of the sign conversion works as expected in if loops. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Aneesh Kumar K.V 提交于
The delayed allocation code allocates blocks during writepages(), which can not handle block allocation failures. To deal with this, we switch away from delayed allocation mode when we are running low on free blocks. This also allows us to avoid needing to reserve a large number of meta-data blocks in case all of the requested blocks are discontiguous. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 10 10月, 2008 1 次提交
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由 Aneesh Kumar K.V 提交于
This patch adds dirty block accounting using percpu_counters. Delayed allocation block reservation is now done by updating dirty block counter. In a later patch we switch to non delalloc mode if the filesystem free blocks is greater than 150% of total filesystem dirty blocks Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Mingming Cao<cmm@us.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 09 9月, 2008 1 次提交
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由 Aneesh Kumar K.V 提交于
During block reservation if we don't have enough blocks left, retry block reservation with smaller block counts. This makes sure we try fallocate and DIO with smaller request size and don't fail early. The delayed allocation reservation cannot try with smaller block count. So retry block reservation to handle temporary disk full conditions. Also print free blocks details if we fail block allocation during writepages. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NMingming Cao <cmm@us.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 09 10月, 2008 1 次提交
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由 Aneesh Kumar K.V 提交于
With delayed allocation we need to make sure block are reserved before we attempt to allocate them. Otherwise we get block allocation failure (ENOSPC) during writepages which cannot be handled. This would mean silent data loss (We do a printk stating data will be lost). This patch updates the DIO and fallocate code path to do block reservation before block allocation. This is needed to make sure parallel DIO and fallocate request doesn't take block out of delayed reserve space. When free blocks count go below a threshold we switch to a slow patch which looks at other CPU's accumulated percpu counter values. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 20 8月, 2008 1 次提交
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由 Aneesh Kumar K.V 提交于
We are a bit agressive in invalidating all the pages. But it is ok because we really don't know why the block allocation failed and it is better to come of the writeback path so that user can look for more info. Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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- 09 9月, 2008 3 次提交
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由 Theodore Ts'o 提交于
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Theodore Ts'o 提交于
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Theodore Ts'o 提交于
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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- 10 10月, 2008 7 次提交
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由 Mingming Cao 提交于
percpu_counter_sum_and_set() and percpu_counter_sum() is the same except the former updates the global counter after accounting. Since we are taking the fbc->lock to calculate the precise value of the counter in percpu_counter_sum() anyway, it should simply set fbc->count too, as the percpu_counter_sum_and_set() does. This patch merges these two interfaces into one. Signed-off-by: NMingming Cao <cmm@us.ibm.com> Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
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由 Linus Torvalds 提交于
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由 Linus Torvalds 提交于
This is debatable, but while we're debating it, let's disallow the combination of splice and an O_APPEND destination. It's not entirely clear what the semantics of O_APPEND should be, and POSIX apparently expects pwrite() to ignore O_APPEND, for example. So we could make up any semantics we want, including the old ones. But Miklos convinced me that we should at least give it some thought, and that accepting writes at arbitrary offsets is wrong at least for IS_APPEND() files (which always have O_APPEND set, even if the reverse isn't true: you can obviously have O_APPEND set on a regular file). So disallow O_APPEND entirely for now. I doubt anybody cares, and this way we have one less gray area to worry about. Reported-and-argued-for-by: NMiklos Szeredi <miklos@szeredi.hu> Acked-by: NJens Axboe <ens.axboe@oracle.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://jdelvare.pck.nerim.net/jdelvare-2.6由 Linus Torvalds 提交于
* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: hwmon: (abituguru3) Enable DMI probing feature on Abit AT8 32X hwmon: (abituguru3) Enable reading from AUX3 fan on Abit AT8 32X hwmon: (adt7473) Fix some bogosity in documentation file hwmon: Define sysfs interface for energy consumption register hwmon: (it87) Prevent power-off on Shuttle SN68PT eeepc-laptop: Fix hwmon interface
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git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq由 Linus Torvalds 提交于
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] correct broken links and email addresses
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由 Matt Mackall 提交于
This fixes the previous fix, which was completely wrong on closer inspection. This version has been manually tested with a user-space test harness and generates sane values. A nearly identical patch has been boot-tested. The problem arose from changing how kmalloc/kfree handled alignment padding without updating ksize to match. This brings it in sync. Signed-off-by: NMatt Mackall <mpm@selenic.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Németh Márton 提交于
Replace the no longer working links and email address in the documentation and in source code. Signed-off-by: NMárton Németh <nm127@freemail.hu> Signed-off-by: NDave Jones <davej@redhat.com>
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- 09 10月, 2008 9 次提交
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由 Alistair John Strachan 提交于
Enable driver checking of the DMI product name (when enabled) on an Abit AT8 32X, instead of falling back to a manual probe. This eliminates false negatives and eventually will help avoid unnecessary bus probes on unsupported mainboards. Signed-off-by: NAlistair John Strachan <alistair@devzero.co.uk> Tested-by: NDaniel Exner <dex@dragonslave.de> Acked-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Alistair John Strachan 提交于
The table for the Abit AT8 32X was incorrectly missing an entry for the sixth ("AUX3") fan. Add this entry, exporting the fan reading to userspace. Closes lm-sensors.org ticket #2339. Signed-off-by: NAlistair John Strachan <alistair@devzero.co.uk> Tested-by: NDaniel Exner <dex@dragonslave.de> Acked-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Darrick J. Wong 提交于
Signed-off-by: NDarrick J. Wong <djwong@us.ibm.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Darrick J. Wong 提交于
Describe the sysfs files that were introduced in the ibmaem driver. Signed-off-by: NDarrick J. Wong <djwong@us.ibm.com> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Jean Delvare 提交于
On the Shuttle SN68PT, FAN_CTL2 is apparently not connected to a fan, but to something else. One user has reported instant system power-off when changing the PWM2 duty cycle, so we disable it. I use the board name string as the trigger in case the same board is ever used in other systems. This closes lm-sensors ticket #2349: pwmconfig causes a hard poweroff http://www.lm-sensors.org/ticket/2349Signed-off-by: NJean Delvare <khali@linux-fr.org>
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由 Corentin Chary 提交于
Creates a name file in the sysfs directory, that is needed for the libsensors library to work. Also rename fan1_pwm to pwm1 and scale its value as needed. This fixes bug #11520: http://bugzilla.kernel.org/show_bug.cgi?id=11520Signed-off-by: NCorentin Chary <corentincj@iksaif.net> Signed-off-by: NJean Delvare <khali@linux-fr.org>
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git://ftp.linux-mips.org/pub/scm/upstream-linus由 Linus Torvalds 提交于
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Sibyte: Register PIO PATA device only for Swarm and Litte Sur
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: tcp: Fix tcp_hybla zero congestion window growth with small rho and large cwnd. net: Fix netdev_run_todo dead-lock tcp: Fix possible double-ack w/ user dma net: only invoke dev->change_rx_flags when device is UP netrom: Fix sock_orphan() use in nr_release ax25: Quick fix for making sure unaccepted sockets get destroyed. Revert "ax25: Fix std timer socket destroy handling." [Bluetooth] Add reset quirk for A-Link BlueUSB21 dongle [Bluetooth] Add reset quirk for new Targus and Belkin dongles [Bluetooth] Fix double frees on error paths of btusb and bpa10x drivers
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由 Ralf Baechle 提交于
Symbol name spaghetti which is too complicated to cleanup on this stage of the release cycle breaks the build on BCM1480 platforms. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 08 10月, 2008 3 次提交
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由 Daniele Lacamera 提交于
Because of rounding, in certain conditions, i.e. when in congestion avoidance state rho is smaller than 1/128 of the current cwnd, TCP Hybla congestion control starves and the cwnd is kept constant forever. This patch forces an increment by one segment after #send_cwnd calls without increments(newreno behavior). Signed-off-by: NDaniele Lacamera <root@danielinux.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Herbert Xu 提交于
Benjamin Thery tracked down a bug that explains many instances of the error unregister_netdevice: waiting for %s to become free. Usage count = %d It turns out that netdev_run_todo can dead-lock with itself if a second instance of it is run in a thread that will then free a reference to the device waited on by the first instance. The problem is really quite silly. We were trying to create parallelism where none was required. As netdev_run_todo always follows a RTNL section, and that todo tasks can only be added with the RTNL held, by definition you should only need to wait for the very ones that you've added and be done with it. There is no need for a second mutex or spinlock. This is exactly what the following patch does. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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