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* udf: Fix data corruption for files in ICBJan Kara2012-09-141-6/+29
| | | | | | | | | | | | | | | | | | | commit 9c2fc0de1a6e638fe58c354a463f544f42a90a09 upstream. When a file is stored in ICB (inode), we overwrite part of the file, and the page containing file's data is not in page cache, we end up corrupting file's data by overwriting them with zeros. The problem is we use simple_write_begin() which simply zeroes parts of the page which are not written to. The problem has been introduced by be021ee4 (udf: convert to new aops). Fix the problem by providing a ->write_begin function which makes the page properly uptodate. Reported-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* udf: Fix deadlock in udf_release_file()Jan Kara2012-04-021-2/+0
| | | | | | | | | | | | | | | commit a0391a3ae91d301c0e59368531a4de5f0b122bcf upstream. udf_release_file() can be called from munmap() path with mmap_sem held. Thus we cannot take i_mutex there because that ranks above mmap_sem. Luckily, i_mutex is not needed in udf_release_file() anymore since protection by i_data_sem is enough to protect from races with write and truncate. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* udf: Fix deadlock when converting file from in-ICB one to normal oneJan Kara2012-01-121-3/+3
| | | | | | | | | | | | | | | | | | | | commit d2eb8c359309ec45d6bf5b147303ab8e13be86ea upstream. During BKL removal in 2.6.38, conversion of files from in-ICB format to normal format got broken. We call ->writepage with i_data_sem held but udf_get_block() also acquires i_data_sem thus creating A-A deadlock. We fix the problem by dropping i_data_sem before calling ->writepage() which is safe since i_mutex still protects us against any changes in the file. Also fix pagelock - i_data_sem lock inversion in udf_expand_file_adinicb() by dropping i_data_sem before calling find_or_create_page(). Reported-by: Matthias Matiak <netzpython@mail-on.us> Tested-by: Matthias Matiak <netzpython@mail-on.us> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2011-03-241-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block: (65 commits) Documentation/iostats.txt: bit-size reference etc. cfq-iosched: removing unnecessary think time checking cfq-iosched: Don't clear queue stats when preempt. blk-throttle: Reset group slice when limits are changed blk-cgroup: Only give unaccounted_time under debug cfq-iosched: Don't set active queue in preempt block: fix non-atomic access to genhd inflight structures block: attempt to merge with existing requests on plug flush block: NULL dereference on error path in __blkdev_get() cfq-iosched: Don't update group weights when on service tree fs: assign sb->s_bdi to default_backing_dev_info if the bdi is going away block: Require subsystems to explicitly allocate bio_set integrity mempool jbd2: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging jbd: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging fs: make fsync_buffers_list() plug mm: make generic_writepages() use plugging blk-cgroup: Add unaccounted time to timeslice_used. block: fixup plugging stubs for !CONFIG_BLOCK block: remove obsolete comments for blkdev_issue_zeroout. blktrace: Use rq->cmd_flags directly in blk_add_trace_rq. ... Fix up conflicts in fs/{aio.c,super.c}
| * block: remove per-queue pluggingJens Axboe2011-03-101-1/+0
| | | | | | | | | | | | | | | | Code has been converted over to the new explicit on-stack plugging, and delay users have been converted to use the new API for that. So lets kill off the old plugging along with aops->sync_page(). Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* | udf: Convert UDF to new truncate calling sequenceJan Kara2011-02-231-4/+3
|/ | | | | | | Use new truncation sequence in UDF and fix up error handling in the code. Signed-off-by: Jan Kara <jack@suse.cz>
* udf: Protect udf_file_aio_write from possible racesJan Kara2011-01-061-0/+3
| | | | | | | | | Code doing conversion from INICB file to a normal file in udf_file_aio_write() is not protected by any lock from other code modifying the inode. Use i_alloc_sem for that. Reported-by: Alessio Igor Bogani <abogani@texware.it> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: Remove unnecessary bkl usagesAlessio Igor Bogani2011-01-061-4/+0
| | | | | | | | | | | | | | The udf_readdir(), udf_lookup(), udf_create(), udf_mknod(), udf_mkdir(), udf_rmdir(), udf_link(), udf_get_parent() and udf_unlink() seems already adequately protected by i_mutex held by VFS invoking calls. The udf_rename() instead should be already protected by lock_rename again by VFS. The udf_ioctl(), udf_fill_super() and udf_evict_inode() don't requires any further protection. This work was supported by a hardware donation from the CE Linux Forum. Signed-off-by: Alessio Igor Bogani <abogani@texware.it> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: Replace bkl with the UDF_I(inode)->i_data_sem for protect ↵Alessio Igor Bogani2011-01-061-2/+2
| | | | | | | | | | | | | | | udf_inode_info struct Replace bkl with the UDF_I(inode)->i_data_sem rw semaphore in udf_release_file(), udf_symlink(), udf_symlink_filler(), udf_get_block(), udf_block_map(), and udf_setattr(). The rule now is that any operation on regular file's or symlink's extents (or generally allocation information including goal block) needs to hold i_data_sem. This work was supported by a hardware donation from the CE Linux Forum. Signed-off-by: Alessio Igor Bogani <abogani@texware.it> Signed-off-by: Jan Kara <jack@suse.cz>
* Merge branch 'for-linus' of ↵Linus Torvalds2010-08-101-0/+22
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (96 commits) no need for list_for_each_entry_safe()/resetting with superblock list Fix sget() race with failing mount vfs: don't hold s_umount over close_bdev_exclusive() call sysv: do not mark superblock dirty on remount sysv: do not mark superblock dirty on mount btrfs: remove junk sb_dirt change BFS: clean up the superblock usage AFFS: wait for sb synchronization when needed AFFS: clean up dirty flag usage cifs: truncate fallout mbcache: fix shrinker function return value mbcache: Remove unused features add f_flags to struct statfs(64) pass a struct path to vfs_statfs update VFS documentation for method changes. All filesystems that need invalidate_inode_buffers() are doing that explicitly convert remaining ->clear_inode() to ->evict_inode() Make ->drop_inode() just return whether inode needs to be dropped fs/inode.c:clear_inode() is gone fs/inode.c:evict() doesn't care about delete vs. non-delete paths now ... Fix up trivial conflicts in fs/nilfs2/super.c
| * remove inode_setattrChristoph Hellwig2010-08-091-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace inode_setattr with opencoded variants of it in all callers. This moves the remaining call to vmtruncate into the filesystem methods where it can be replaced with the proper truncate sequence. In a few cases it was obvious that we would never end up calling vmtruncate so it was left out in the opencoded variant: spufs: explicitly checks for ATTR_SIZE earlier btrfs,hugetlbfs,logfs,dlmfs: explicitly clears ATTR_SIZE earlier ufs: contains an opencoded simple_seattr + truncate that sets the filesize just above In addition to that ncpfs called inode_setattr with handcrafted iattrs, which allowed to trim down the opencoded variant. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * add missing setattr methodsChristoph Hellwig2010-08-091-0/+12
| | | | | | | | | | | | | | | | | | For the new truncate sequence every filesystem that wants to truncate on-disk state needs a seattr method. Convert the remaining filesystems that implement the truncate inode operation to have its own setattr method. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | udf: remove duplicated #includeHuang Weiyi2010-08-021-1/+0
|/ | | | | | | | Remove duplicated #include('s) in fs/udf/file.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
* Merge branch 'for_linus' of ↵Linus Torvalds2010-05-301-25/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: quota: Convert quota statistics to generic percpu_counter ext3 uses rb_node = NULL; to zero rb_root. quota: Fixup dquot_transfer reiserfs: Fix resuming of quotas on remount read-write pohmelfs: Remove dead quota code ufs: Remove dead quota code udf: Remove dead quota code quota: rename default quotactl methods to dquot_ quota: explicitly set ->dq_op and ->s_qcop quota: drop remount argument to ->quota_on and ->quota_off quota: move unmount handling into the filesystem quota: kill the vfs_dq_off and vfs_dq_quota_on_remount wrappers quota: move remount handling into the filesystem ocfs2: Fix use after free on remount read-only Fix up conflicts in fs/ext4/super.c and fs/ufs/file.c
| * udf: Remove dead quota codeJan Kara2010-05-241-25/+1
| | | | | | | | | | | | | | | | | | | | Quota on UDF is non-functional at least since 2.6.16 (I'm too lazy to do more archeology) because it does not provide .quota_write and .quota_read functions and thus quotaon(8) just returns EINVAL. Since nobody complained for all those years and quota support is not even in UDF standard just nuke it. Signed-off-by: Jan Kara <jack@suse.cz>
* | rename the generic fsync implementationsChristoph Hellwig2010-05-271-1/+1
|/ | | | | | | | | | | | | | | | We don't name our generic fsync implementations very well currently. The no-op implementation for in-memory filesystems currently is called simple_sync_file which doesn't make too much sense to start with, the the generic one for simple filesystems is called simple_fsync which can lead to some confusion. This patch renames the generic file fsync method to generic_file_fsync to match the other generic_file_* routines it is supposed to be used with, and the no-op implementation to noop_fsync to make it obvious what to expect. In addition add some documentation for both methods. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'for_linus' of ↵Linus Torvalds2010-05-211-16/+27
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6: udf: BKL ioctl pushdown
| * udf: BKL ioctl pushdownJohn Kacur2010-05-051-16/+27
| | | | | | | | | | | | | | Convert udf_ioctl to an unlocked_ioctl and push the BKL down into it. Signed-off-by: John Kacur <jkacur@redhat.com Signed-off-by: Jan Kara <jack@suse.cz>
* | quota: unify quota init condition in setattrDmitry Monakhov2010-05-211-1/+1
|/ | | | | | | | | | | | | Quota must being initialized if size or uid/git changes requested. But initialization performed in two different places: in case of i_size file system is responsible for dquot init , but in case of uid/gid init will be called internally in dquot_transfer(). This ambiguity makes code harder to understand. Let's move this logic to one common helper function. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: add speciffic ->setattr callbackDmitry Monakhov2010-04-081-1/+1
| | | | | | | | generic setattr not longer responsible for quota transfer. use udf_setattr for all udf's inodes. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Jan Kara <jack@suse.cz>
* dquot: cleanup dquot initialize routineChristoph Hellwig2010-03-051-1/+1
| | | | | | | | | | | | Get rid of the initialize dquot operation - it is now always called from the filesystem and if a filesystem really needs it's own (which none currently does) it can just call into it's own routine directly. Rename the now static low-level dquot_initialize helper to __dquot_initialize and vfs_dq_init to dquot_initialize to have a consistent namespace. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
* dquot: move dquot initialization responsibility into the filesystemChristoph Hellwig2010-03-051-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | Currently various places in the VFS call vfs_dq_init directly. This means we tie the quota code into the VFS. Get rid of that and make the filesystem responsible for the initialization. For most metadata operations this is a straight forward move into the methods, but for truncate and open it's a bit more complicated. For truncate we currently only call vfs_dq_init for the sys_truncate case because open already takes care of it for ftruncate and open(O_TRUNC) - the new code causes an additional vfs_dq_init for those which is harmless. For open the initialization is moved from do_filp_open into the open method, which means it happens slightly earlier now, and only for regular files. The latter is fine because we don't need to initialize it for operations on special files, and we already do it as part of the namespace operations for directories. Add a dquot_file_open helper that filesystems that support generic quotas can use to fill in ->open. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
* dquot: cleanup dquot transfer routineChristoph Hellwig2010-03-051-1/+1
| | | | | | | | | | | | | | Get rid of the transfer dquot operation - it is now always called from the filesystem and if a filesystem really needs it's own (which none currently does) it can just call into it's own routine directly. Rename the now static low-level dquot_transfer helper to __dquot_transfer and vfs_dq_transfer to dquot_transfer to have a consistent namespace, and make the new dquot_transfer return a normal negative errno value which all callers expect. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
* dquot: move dquot transfer responsibility into the filesystemChristoph Hellwig2010-03-051-1/+22
| | | | | | | | | | | Currently notify_change calls vfs_dq_transfer directly. This means we tie the quota code into the VFS. Get rid of that and make the filesystem responsible for the transfer. Most filesystems already do this, only ufs and udf need the code added, and for jfs it needs to be enabled unconditionally instead of only when ACLs are enabled. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: Avoid IO in udf_clear_inodeJan Kara2009-12-141-0/+1
| | | | | | | | | | | | | | | | | | | It is not very good to do IO in udf_clear_inode. First, VFS does not really expect inode to become dirty there and thus we have to write it ourselves, second, memory reclaim gets blocked waiting for IO when it does not really expect it, third, the IO pattern (e.g. on umount) resulting from writes in udf_clear_inode is bad and it slows down writing a lot. The reason why UDF needed to do IO in udf_clear_inode is that UDF standard mandates extent length to exactly match inode size. But when we allocate extents to a file or directory, we don't really know what exactly the final file size will be and thus temporarily set it to block boundary and later truncate it to exact length in udf_clear_inode. Now, this is changed to truncate to final file size in udf_release_file for regular files. For directories and symlinks, we do the truncation at the moment when learn what the final file size will be. Signed-off-by: Jan Kara <jack@suse.cz>
* udf: Fix possible corruption when close races with writeJan Kara2009-09-141-0/+2
| | | | | | | | When we close a file, we remove preallocated blocks from it. But this truncation was not protected by i_mutex and thus it could have raced with a write through a different fd and cause crashes or even filesystem corruption. Signed-off-by: Jan Kara <jack@suse.cz>
* switch udf to simple_fsync()Al Viro2009-06-111-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* udf: add llseek methodChristoph Hellwig2008-09-081-0/+1
| | | | | | | | | | UDF currently doesn't set a llseek method for regular files, which means it will fall back to default_llseek. This means no one can seek beyond 2 Gigabytes on udf, and that there's not protection vs the i_size updates from writers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: move headers out include/linux/Christoph Hellwig2008-04-171-1/+0
| | | | | | | | | | | | | | | | There's really no reason to keep udf headers in include/linux as they're not used by anything but fs/udf/. This patch merges most of include/linux/udf_fs_i.h into fs/udf/udf_i.h, include/linux/udf_fs_sb.h into fs/udf/udf_sb.h and include/linux/udf_fs.h into fs/udf/udfdecl.h. The only thing remaining in include/linux/ is a stub of udf_fs_i.h defining the four user-visible udf ioctls. It's also moved from unifdef-y to headers-y because it can be included unconditionally now. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: kill useless file header comments for vfs method implementationsChristoph Hellwig2008-04-171-46/+0
| | | | | | | | | | There's not need to document vfs method invocation rules, we have Documentation/filesystems/vfs.txt and Documentation/filesystems/Locking for that. Also a lot of these comments where either plain wrong or horrible out of date. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: cache struct udf_inode_infoMarcin Slusarz2008-02-081-10/+11
| | | | | | | | | | | cache UDF_I(struct inode *) return values when there are at least 2 uses in one function Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* udf: remove UDF_I_* macros and open code themMarcin Slusarz2008-02-081-10/+14
| | | | | | | | Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* udf: fix coding styleMarcin Slusarz2008-02-081-6/+12
| | | | | | | | | | | | | | | | | | | fix coding style errors found by checkpatch: - assignments in if conditions - braces {} around single statement blocks - no spaces after commas - printks without KERN_* - lines longer than 80 characters - spaces between "type *" and variable name before: 192 errors, 561 warnings, 8987 lines checked after: 1 errors, 38 warnings, 9468 lines checked Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Jan Kara <jack@suse.cz> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* udf: remove some ugly macrosMarcin Slusarz2008-02-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | remove macros: - UDF_SB_PARTMAPS - UDF_SB_PARTTYPE - UDF_SB_PARTROOT - UDF_SB_PARTLEN - UDF_SB_PARTVSN - UDF_SB_PARTNUM - UDF_SB_TYPESPAR - UDF_SB_TYPEVIRT - UDF_SB_PARTFUNC - UDF_SB_PARTFLAGS - UDF_SB_VOLIDENT - UDF_SB_NUMPARTS - UDF_SB_PARTITION - UDF_SB_SESSION - UDF_SB_ANCHOR - UDF_SB_LASTBLOCK - UDF_SB_LVIDBH - UDF_SB_LVID - UDF_SB_UMASK - UDF_SB_GID - UDF_SB_UID - UDF_SB_RECORDTIME - UDF_SB_SERIALNUM - UDF_SB_UDFREV - UDF_SB_FLAGS - UDF_SB_VAT - UDF_UPDATE_UDFREV - UDF_SB_FREE and open code them convert UDF_SB_LVIDIU macro to udf_sb_lvidiu function rename some struct udf_sb_info fields: - s_volident to s_volume_ident - s_lastblock to s_last_block - s_lvidbh to s_lvid_bh - s_recordtime to s_record_time - s_serialnum to s_serial_number; - s_vat to s_vat_inode; Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Ben Fennema <bfennema@falcon.csc.calpoly.edu> Cc: Jan Kara <jack@suse.cz> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* udf: convert to new aopsNick Piggin2007-10-161-21/+14
| | | | | | | | | | | | | | Convert udf to new aops. Also seem to have fixed pagecache corruption in udf_adinicb_commit_write -- page was marked uptodate when it is not. Also, fixed the silly setup where prepare_write was doing a kmap to be used in commit_write: just do kmap_atomic in write_end. Use libfs helpers to make this easier. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: <bfennema@falcon.csc.calpoly.edu> Cc: Jan Kara <jack@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* UDF: coding style conversion - lindent fixupsCyrill Gorcunov2007-07-211-38/+34
| | | | | | | | | This patch fixes up sources after conversion by Lindent. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Jan Kara <jack@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* UDF: coding style conversion - lindentCyrill Gorcunov2007-07-191-59/+55
| | | | | | | | | This patch converts UDF coding style to kernel coding style using Lindent. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Jan Kara <jack@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sendfile: remove .sendfile from filesystems that use generic_file_sendfile()Jens Axboe2007-07-101-1/+1
| | | | | | | They can use generic_file_splice_read() instead. Since sys_sendfile() now prefers that, there should be no change in behaviour. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* Detach sched.h from mm.hAlexey Dobriyan2007-05-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | First thing mm.h does is including sched.h solely for can_do_mlock() inline function which has "current" dereference inside. By dealing with can_do_mlock() mm.h can be detached from sched.h which is good. See below, why. This patch a) removes unconditional inclusion of sched.h from mm.h b) makes can_do_mlock() normal function in mm/mlock.c c) exports can_do_mlock() to not break compilation d) adds sched.h inclusions back to files that were getting it indirectly. e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were getting them indirectly Net result is: a) mm.h users would get less code to open, read, preprocess, parse, ... if they don't need sched.h b) sched.h stops being dependency for significant number of files: on x86_64 allmodconfig touching sched.h results in recompile of 4083 files, after patch it's only 3744 (-8.3%). Cross-compile tested on all arm defconfigs, all mips defconfigs, all powerpc defconfigs, alpha alpha-up arm i386 i386-up i386-defconfig i386-allnoconfig ia64 ia64-up m68k mips parisc parisc-up powerpc powerpc-up s390 s390-up sparc sparc-up sparc64 sparc64-up um-x86_64 x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig as well as my two usual configs. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] mark struct inode_operations const 3Arjan van de Ven2007-02-121-1/+1
| | | | | | | | | | | 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: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] struct path: convert udfJosef Sipek2006-12-081-1/+1
| | | | | | Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Streamline generic_file_* interfaces and filemap cleanupsBadari Pulavarty2006-10-011-6/+10
| | | | | | | | | | | | | | | | | | | | | | This patch cleans up generic_file_*_read/write() interfaces. Christoph Hellwig gave me the idea for this clean ups. In a nutshell, all filesystems should set .aio_read/.aio_write methods and use do_sync_read/ do_sync_write() as their .read/.write methods. This allows us to cleanup all variants of generic_file_* routines. Final available interfaces: generic_file_aio_read() - read handler generic_file_aio_write() - write handler generic_file_aio_write_nolock() - no lock write handler __generic_file_aio_write_nolock() - internal worker routine Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mark address_space_operations constChristoph Hellwig2006-06-281-1/+1
| | | | | | | | | | Same as with already do with the file operations: keep them in .rodata and prevents people from doing runtime patching. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Make most file operations structs in fs/ constArjan van de Ven2006-03-281-1/+1
| | | | | | | | | | | | | | This is a conversion to make the various file_operations structs in fs/ const. Basically a regexp job, with a few manual fixups The goal is both to increase correctness (harder to accidentally write to shared datastructures) and reducing the false sharing of cachelines with things that get dirty in .data (while .rodata is nicely read only and thus cache clean) Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] capable/capability.h (fs/)Randy Dunlap2006-01-111-0/+1
| | | | | | | | | fs: Use <linux/capability.h> where capable() is used. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Tim Schmielau <tim@physik3.uni-rostock.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* remove pointers to the defunct UDF mailing listAdrian Bunk2006-01-031-5/+0
| | | | | | This patch removes pointers to the defunct UDF mailing list. Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] add a file_permission helperChristoph Hellwig2005-11-091-1/+1
| | | | | | | | | | | | A few more callers of permission() just want to check for a different access pattern on an already open file. This patch adds a wrapper for permission() that takes a file in preparation of per-mount read-only support and to clean up the callers a little. The helper is not intended for new code, everything without the interface set in stone should use vfs_permission() Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Exterminate PAGE_BUGMatt Mackall2005-05-011-4/+2
| | | | | | | | Remove PAGE_BUG - repalce it with BUG and BUG_ON. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2Linus Torvalds2005-04-161-0/+270
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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