kernel_optimize_test/fs/ext2
Jan Blunck 3e44f9f1dc BKL: Remove BKL from ext2 filesystem
The BKL is still used in ext2_put_super(), ext2_fill_super(), ext2_sync_fs()
ext2_remount() and ext2_write_inode(). From these calls ext2_put_super(),
ext2_fill_super() and ext2_remount() are protected against each other by
the struct super_block s_umount rw semaphore. The call in ext2_write_inode()
could only protect the modification of the ext2_sb_info through
ext2_update_dynamic_rev() against concurrent ext2_sync_fs() or ext2_remount().
ext2_fill_super() and ext2_put_super() can be left out because you need a
valid filesystem reference in all three cases, which you do not have when
you are one of these functions.

If the BKL is only protecting the modification of the ext2_sb_info it can
safely be removed since this is protected by the struct ext2_sb_info s_lock.

Signed-off-by: Jan Blunck <jblunck@infradead.org>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2010-10-04 21:10:44 +02:00
..
acl.c ext2: update ctime when changing the file's permission by setfacl 2010-06-25 01:20:37 +02:00
acl.h ext[234]: move over to 'check_acl' permission model 2009-09-08 11:09:04 -07:00
balloc.c Take dirtying the inode to callers of ext2_free_blocks() 2010-08-09 16:47:55 -04:00
dir.c introduce __block_write_begin 2010-08-09 16:47:32 -04:00
ext2.h merge ext2 delete_inode and clear_inode, switch to ->evict_inode() 2010-08-09 16:47:57 -04:00
file.c ext2: convert to use the new truncate convention. 2010-05-27 22:15:57 -04:00
ialloc.c merge ext2 delete_inode and clear_inode, switch to ->evict_inode() 2010-08-09 16:47:57 -04:00
inode.c merge ext2 delete_inode and clear_inode, switch to ->evict_inode() 2010-08-09 16:47:57 -04:00
ioctl.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
Kconfig fs/Kconfig: move ext2, ext3, ext4, JBD, JBD2 out 2008-10-20 11:43:59 -07:00
Makefile switch ext2 to simple_fsync() 2009-06-11 21:36:12 -04:00
namei.c dquot: cleanup dquot initialize routine 2010-03-05 00:20:30 +01:00
super.c BKL: Remove BKL from ext2 filesystem 2010-10-04 21:10:44 +02:00
symlink.c ext2: symlink must be handled via filesystem specific operation 2010-04-12 21:11:25 +02:00
xattr_security.c ext2: constify xattr_handler 2010-05-21 18:31:18 -04:00
xattr_trusted.c ext2: constify xattr_handler 2010-05-21 18:31:18 -04:00
xattr_user.c ext2: constify xattr_handler 2010-05-21 18:31:18 -04:00
xattr.c mbcache: Remove unused features 2010-08-09 16:48:45 -04:00
xattr.h ext2: constify xattr_handler 2010-05-21 18:31:18 -04:00
xip.c ext2: Unify log messages in ext2 2009-12-10 15:02:52 +01:00
xip.h xip: support non-struct page backed memory 2008-04-28 08:58:23 -07:00