- 15 10月, 2009 1 次提交
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由 Frederic Weisbecker 提交于
The reiserfs ioctl path doesn't need the big kernel lock anymore , now that the filesystem synchronizes through its own lock. We can then turn reiserfs_ioctl() into an unlocked_ioctl callback. Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Cc: Jeff Mahoney <jeffm@suse.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Alexander Beregalov <a.beregalov@gmail.com> Cc: Laurent Riffard <laurent.riffard@free.fr> Cc: Thomas Gleixner <tglx@linutronix.de>
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- 14 9月, 2009 6 次提交
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由 Frederic Weisbecker 提交于
While searching a pathname, an inode mutex can be acquired in do_lookup() which calls reiserfs_lookup() which in turn acquires the write lock. On the other side reiserfs_fill_super() can acquire the write_lock and then call reiserfs_lookup_privroot() which can acquire an inode mutex (the root of the mount point). So we theoretically risk an AB - BA lock inversion that could lead to a deadlock. As for other lock dependencies found since the bkl to mutex conversion, the fix is to use reiserfs_mutex_lock_safe() which drops the lock dependency to the write lock. [ Impact: fix a possible deadlock with reiserfs ] Cc: Jeff Mahoney <jeffm@suse.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
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由 Frederic Weisbecker 提交于
The goal of fs_changed() is to check whether the tree changed during a schedule(). This is a BKL legacy. A recent patch added an explicit unconditional release/reacquire of the write lock around the cond_resched() called inside fs_changed. But it's wasteful to unconditionally do that, we are creating superfluous lock contention in !TIF_NEED_RESCHED case. This patch manage that by calling reiserfs_cond_resched() from fs_changed() which only releases the lock if we are going to reschedule. [ Impact: inject less lock contention and tree job retries ] Cc: Jeff Mahoney <jeffm@suse.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
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由 Frederic Weisbecker 提交于
Usually, when we call cond_resched(), we want the write lock to be released and then reacquired once we return from scheduling. Not only does it follow the previous bkl based locking scheme, but it also let other waiters to get the lock. But if we aren't going to reschedule(), such as in !TIF_NEED_RESCHED case, it's useless to release the lock. Worse, if we release and reacquire the lock whereas it is not needed, we create useless contentions. Also if someone takes the lock while we are modifying or reading the tree, there are good chances we'll have to retry our operation, eg if the block we were seeeking has moved. So this patch introduces a helper which only unlock the write lock if we are going to schedule. [ Impact: prepare to inject less lock contention and less tree operation attempts ] Reported-by: NAndi Kleen <andi@firstfloor.org> Cc: Jeff Mahoney <jeffm@suse.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
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由 Frederic Weisbecker 提交于
fs_changed() is a macro used by reiserfs to check whether its tree has been rebalanced. It has been designed to check parallel changes on the tree after calling a sleeping function, which released the Bkl. fs_changed() also calls cond_resched(), so that if rescheduling is needed, we are in the best place to do that, since we check if the tree has changed just after (because of the bkl release on schedule()). Even if we are not anymore using the Bkl, we still want to release the lock while we reschedule, so that other waiters for the lock can acquire it safely, because of the following __fs_changed() check. [ Impact: release the reiserfs write lock when it is not needed ] Cc: Jeff Mahoney <jeffm@suse.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
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由 Frederic Weisbecker 提交于
Sometimes we don't want to recursively hold the per superblock write lock because we want to be sure it is actually released when we come to sleep. This patch introduces the necessary tools for that. reiserfs_write_lock_once() does the same job than reiserfs_write_lock() except that it won't try to acquire recursively the lock if the current task already owns it. Also the lock_depth before the call of this function is returned. reiserfs_write_unlock_once() unlock only if reiserfs_write_lock_once() returned a depth equal to -1, ie: only if it actually locked. Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Cc: Alessio Igor Bogani <abogani@texware.it> Cc: Jeff Mahoney <jeffm@suse.com> Cc: Alexander Beregalov <a.beregalov@gmail.com> Cc: Chris Mason <chris.mason@oracle.com> LKML-Reference: <1239680065-25013-2-git-send-email-fweisbec@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Frederic Weisbecker 提交于
This patch is an attempt to remove the Bkl based locking scheme from reiserfs and is intended. It is a bit inspired from an old attempt by Peter Zijlstra: http://lkml.indiana.edu/hypermail/linux/kernel/0704.2/2174.html The bkl is heavily used in this filesystem to prevent from concurrent write accesses on the filesystem. Reiserfs makes a deep use of the specific properties of the Bkl: - It can be acqquired recursively by a same task - It is released on the schedule() calls and reacquired when schedule() returns The two properties above are a roadmap for the reiserfs write locking so it's very hard to simply replace it with a common mutex. - We need a recursive-able locking unless we want to restructure several blocks of the code. - We need to identify the sites where the bkl was implictly relaxed (schedule, wait, sync, etc...) so that we can in turn release and reacquire our new lock explicitly. Such implicit releases of the lock are often required to let other resources producer/consumer do their job or we can suffer unexpected starvations or deadlocks. So the new lock that replaces the bkl here is a per superblock mutex with a specific property: it can be acquired recursively by a same task, like the bkl. For such purpose, we integrate a lock owner and a lock depth field on the superblock information structure. The first axis on this patch is to turn reiserfs_write_(un)lock() function into a wrapper to manage this mutex. Also some explicit calls to lock_kernel() have been converted to reiserfs_write_lock() helpers. The second axis is to find the important blocking sites (schedule...(), wait_on_buffer(), sync_dirty_buffer(), etc...) and then apply an explicit release of the write lock on these locations before blocking. Then we can safely wait for those who can give us resources or those who need some. Typically this is a fight between the current writer, the reiserfs workqueue (aka the async commiter) and the pdflush threads. The third axis is a consequence of the second. The write lock is usually on top of a lock dependency chain which can include the journal lock, the flush lock or the commit lock. So it's dangerous to release and trying to reacquire the write lock while we still hold other locks. This is fine with the bkl: T1 T2 lock_kernel() mutex_lock(A) unlock_kernel() // do something lock_kernel() mutex_lock(A) -> already locked by T1 schedule() (and then unlock_kernel()) lock_kernel() mutex_unlock(A) .... This is not fine with a mutex: T1 T2 mutex_lock(write) mutex_lock(A) mutex_unlock(write) // do something mutex_lock(write) mutex_lock(A) -> already locked by T1 schedule() mutex_lock(write) -> already locked by T2 deadlock The solution in this patch is to provide a helper which releases the write lock and sleep a bit if we can't lock a mutex that depend on it. It's another simulation of the bkl behaviour. The last axis is to locate the fs callbacks that are called with the bkl held, according to Documentation/filesystem/Locking. Those are: - reiserfs_remount - reiserfs_fill_super - reiserfs_put_super Reiserfs didn't need to explicitly lock because of the context of these callbacks. But now we must take care of that with the new locking. After this patch, reiserfs suffers from a slight performance regression (for now). On UP, a high volume write with dd reports an average of 27 MB/s instead of 30 MB/s without the patch applied. Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Reviewed-by: NIngo Molnar <mingo@elte.hu> Cc: Jeff Mahoney <jeffm@suse.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Bron Gondwana <brong@fastmail.fm> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> LKML-Reference: <1239070789-13354-1-git-send-email-fweisbec@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 19 6月, 2009 1 次提交
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由 Jeff Mahoney 提交于
Several code paths in reiserfs have a construct like: if (is_direntry_le_ih(ih = B_N_PITEM_HEAD(src, item_num))) ... which, in addition to being ugly, end up causing compiler warnings with gcc 4.4.0. Previous compilers didn't issue a warning. fs/reiserfs/do_balan.c:1273: warning: operation on `aux_ih' may be undefined fs/reiserfs/lbalance.c:393: warning: operation on `ih' may be undefined fs/reiserfs/lbalance.c:421: warning: operation on `ih' may be undefined fs/reiserfs/lbalance.c:777: warning: operation on `ih' may be undefined I believe this is due to the ih being passed to macros which evaluate the argument more than once. This is old code and we haven't seen any problems with it, but this patch eliminates the warnings. It converts the multiple evaluation macros to static inlines and does a preassignment for the cases that were causing the warnings because that code is just ugly. Reported-by: NChris Mason <mason@oracle.com> Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 31 3月, 2009 17 次提交
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由 Jeff Mahoney 提交于
This patch is a simple s/p_._//g to the reiserfs code. This is the fifth in a series of patches to rip out some of the awful variable naming in reiserfs. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
This patch is a simple s/p_s_tb/tb/g to the reiserfs code. This is the fourth in a series of patches to rip out some of the awful variable naming in reiserfs. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
This patch is a simple s/p_s_inode/inode/g to the reiserfs code. This is the third in a series of patches to rip out some of the awful variable naming in reiserfs. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
This patch is a simple s/p_s_bh/bh/g to the reiserfs code. This is the second in a series of patches to rip out some of the awful variable naming in reiserfs. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
This patch is a simple s/p_s_sb/sb/g to the reiserfs code. This is the first in a series of patches to rip out some of the awful variable naming in reiserfs. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
Some time ago, some changes were made to make security inode attributes be atomically written during inode creation. ReiserFS fell behind in this area, but with the reworking of the xattr code, it's now fairly easy to add. The following patch adds the ability for security attributes to be added automatically during inode creation. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
The current reiserfs xattr implementation open codes reiserfs_readdir and frees the path before calling the filldir function. Typically, the filldir function is something that modifies the file system, such as a chown or an inode deletion that also require reading of an inode associated with each direntry. Since the file system is modified, the path retained becomes invalid for the next run. In addition, it runs backwards in attempt to minimize activity. This is clearly suboptimal from a code cleanliness perspective as well as performance-wise. This patch implements a generic reiserfs_for_each_xattr that uses the generic readdir and a specific filldir routine that simply populates an array of dentries and then performs a specific operation on them. When all files have been operated on, it then calls the operation on the directory itself. The result is a noticable code reduction and better performance. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
Deadlocks are possible in the xattr code between the journal lock and the xattr sems. This patch implements journalling for xattr operations. The benefit is twofold: * It gets rid of the deadlock possibility by always ensuring that xattr write operations are initiated inside a transaction. * It corrects the problem where xattr backing files aren't considered any differently than normal files, despite the fact they are metadata. I discussed the added journal load with Chris Mason, and we decided that since xattrs (versus other journal activity) is fairly rare, the introduction of larger transactions to support journaled xattrs wouldn't be too big a deal. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
With the switch to using inode->i_mutex locking during lookups/creation in the xattr root, the per-super xattr lock is no longer needed. This patch removes it. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
Although reiserfs can currently handle severe errors such as journal failure, it cannot handle less severe errors like metadata i/o failure. The following patch adds a reiserfs_error() function akin to the one in ext3. Subsequent patches will use this new error handler to handle errors more gracefully in general. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
This patch kills off reiserfs_journal_abort as it is never called, and combines __reiserfs_journal_abort_{soft,hard} into one function called reiserfs_abort_journal, which performs the same work. It is silent as opposed to the old version, since the message was always issued after a regular 'abort' message. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
ReiserFS panics can be somewhat inconsistent. In some cases: * a unique identifier may be associated with it * the function name may be included * the device may be printed separately This patch aims to make warnings more consistent. reiserfs_warning() prints the device name, so printing it a second time is not required. The function name for a warning is always helpful in debugging, so it is now automatically inserted into the output. Hans has stated that every warning should have a unique identifier. Some cases lack them, others really shouldn't have them. reiserfs_warning() now expects an id associated with each message. In the rare case where one isn't needed, "" will suffice. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
uniqueness2type and type2uniquness issue a warning when the value is unknown. When called from reiserfs_warning, this causes a re-entrancy problem and deadlocks on the error buffer lock. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
ReiserFS warnings can be somewhat inconsistent. In some cases: * a unique identifier may be associated with it * the function name may be included * the device may be printed separately This patch aims to make warnings more consistent. reiserfs_warning() prints the device name, so printing it a second time is not required. The function name for a warning is always helpful in debugging, so it is now automatically inserted into the output. Hans has stated that every warning should have a unique identifier. Some cases lack them, others really shouldn't have them. reiserfs_warning() now expects an id associated with each message. In the rare case where one isn't needed, "" will suffice. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
This patch makes leaf_paste_entries more consistent with respect to the other leaf operations. Using buffer_info instead of buffer_head directly allows us to get a superblock pointer for use in error handling. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
This patch fixes up the reiserfs code such that transaction ids are always unsigned ints. In places they can currently be signed ints or unsigned longs. The former just causes an annoying clm-2200 warning and may join a transaction when it should wait. The latter is just for correctness since the disk format uses a 32-bit transaction id. There aren't any runtime problems that result from it not wrapping at the correct location since the value is truncated correctly even on big endian systems. The 0 value might make it to disk, but the mount-time checks will bump it to 10 itself. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
The following patch adds the fields for tracking mount counts and last fsck timestamps to the superblock. It also increments the mount count on every read-write mount. Reiserfsprogs 3.6.21 added support for these fields. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 03 2月, 2009 2 次提交
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由 Jaswinder Singh Rajput 提交于
Only REISERFS_IOC_* definitions are required for user space rest should be in #ifdef __KERNEL__ as pointed by Arnd Bergmann. Signed-off-by: NJaswinder Singh Rajput <jaswinderrajput@gmail.com>
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由 Jaswinder Singh Rajput 提交于
fix the following 'make headers_check' warnings: usr/include/linux/reiserfs_fs.h:687: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:995: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:997: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1467: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1760: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1764: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1766: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1769: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1771: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1805: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1948: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1949: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1950: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1951: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1962: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1963: extern's make no sense in userspace usr/include/linux/reiserfs_fs.h:1964: extern's make no sense in userspace Signed-off-by: NJaswinder Singh Rajput <jaswinderrajput@gmail.com>
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- 17 10月, 2008 1 次提交
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由 Harvey Harrison 提交于
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 26 7月, 2008 1 次提交
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由 Harvey Harrison 提交于
Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com> Cc: "John W. Linville" <linville@tuxdriver.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 28 4月, 2008 1 次提交
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由 Jan Kara 提交于
Quota files cannot have tails because quota_write and quota_read functions do not support them. So far when quota files did have tail, we just refused to turn quotas on it. Sadly this check has been wrong and so there are now plenty installations where quota files don't have NOTAIL flag set and so now after fixing the check, they suddently fail to turn quotas on. Since it's easy to unpack the tail from kernel, do this from reiserfs_quota_on() which solves the problem and is generally nicer to users anyway. Signed-off-by: NJan Kara <jack@suse.cz> Reported-by: <urhausen@urifabi.net> Cc: Jeff Mahoney <jeffm@suse.com> Cc: Chris Mason <chris.mason@oracle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 09 2月, 2008 1 次提交
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由 Mike Frysinger 提交于
Since this header is exported to userspace and all the other types in the header have been scrubbed, this brings the last straggler in line. Signed-off-by: NMike Frysinger <vapier@gentoo.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 22 10月, 2007 1 次提交
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由 Christoph Hellwig 提交于
Another nice little cleanup by using the new methods. Signed-off-by: NChristoph Hellwig <hch@lst.de> Cc: Neil Brown <neilb@suse.de> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Chris Mason <mason@suse.com> Cc: Jeff Mahoney <jeffm@suse.com> Cc: "Vladimir V. Saveliev" <vs@namesys.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 20 10月, 2007 3 次提交
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由 Pavel Emelyanov 提交于
The task_struct->pid member is going to be deprecated, so start using the helpers (task_pid_nr/task_pid_vnr/task_pid_nr_ns) in the kernel. The first thing to start with is the pid, printed to dmesg - in this case we may safely use task_pid_nr(). Besides, printks produce more (much more) than a half of all the explicit pid usage. [akpm@linux-foundation.org: git-drm went and changed lots of stuff] Signed-off-by: NPavel Emelyanov <xemul@openvz.org> Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
Implement support for file systems larger than 8 TiB. The reiserfs superblock contains a 16 bit value for counting the number of bitmap blocks. The rest of the disk format supports file systems up to 2^32 blocks, but the bitmap block limitation artificially limits this to 8 TiB with a 4KiB block size. Rather than trust the superblock's 16-bit bitmap block count, we calculate it dynamically based on the number of blocks in the file system. When an incorrect value is observed in the superblock, it is zeroed out, ensuring that older kernels will not be able to mount the file system. Userspace support has already been implemented and shipped in reiserfsprogs 3.6.20. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Mahoney 提交于
Do a quick signedness check for block numbers. There are a number of places where signed integers are used for block numbers, which limits the usable file system size to 8 TiB. The disk format, excepting a problem which will be fixed in the following patch, supports file systems up to 16 TiB in size. This patch cleans up those sites so that we can enable the full usable size. Signed-off-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 17 10月, 2007 1 次提交
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由 Adrian Bunk 提交于
- remove the following no longer used functions: - bitmap.c: reiserfs_claim_blocks_to_be_allocated() - bitmap.c: reiserfs_release_claimed_blocks() - bitmap.c: reiserfs_can_fit_pages() - make the following functions static: - inode.c: restart_transaction() - journal.c: reiserfs_async_progress_wait() Signed-off-by: NAdrian Bunk <bunk@stusta.de> Acked-by: NVladimir V. Saveliev <vs@namesys.com> Cc: Nick Piggin <npiggin@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 29 7月, 2007 1 次提交
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由 Al Viro 提交于
#x blocks expansion of macro argument, but it won't do you any good if it's already been expanded... As it is, RFALSE(cond, ....) ended up with stringified _expanded_ cond. Real fun when cond contains something like le32_to_cpu() and you are on a big-endian box... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 13 2月, 2007 1 次提交
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由 Arjan van de Ven 提交于
Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: NArjan van de Ven <arjan@linux.intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 09 12月, 2006 1 次提交
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由 Josef "Jeff" Sipek 提交于
Rename Reiserfs's struct path to struct treepath to prevent name collision between it and struct path from fs/namei.c. Signed-off-by: NJosef "Jeff" Sipek <jsipek@cs.sunysb.edu> Cc: <reiserfs-dev@namesys.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 08 12月, 2006 1 次提交
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由 Mariusz Kozlowski 提交于
Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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