kernel_optimize_test/fs/ext2
Jan Blunck e0a5cbac02 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@suse.de>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Jan Kara <jack@suse.cz>
2010-05-21 19:30:40 +02:00
..
acl.c sanitize xattr handler prototypes 2009-12-16 12:16:49 -05:00
acl.h ext[234]: move over to 'check_acl' permission model 2009-09-08 11:09:04 -07:00
balloc.c ext2: Avoid loading bitmaps for full groups during block allocation 2010-05-21 19:30:37 +02:00
dir.c ext2: report metadata errors during fsync 2009-12-16 07:20:06 -08:00
ext2.h pass writeback_control to ->write_inode 2010-03-05 13:25:52 -05:00
file.c dquot: cleanup dquot initialize routine 2010-03-05 00:20:30 +01:00
ialloc.c ext2: remove useless call to brelse() in ext2_free_inode() 2010-05-21 19:30:37 +02:00
inode.c BKL: Remove BKL from ext2 filesystem 2010-05-21 19:30:40 +02:00
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 2010-05-21 19:30:40 +02:00
symlink.c ext2: symlink must be handled via filesystem specific operation 2010-04-12 21:11:25 +02:00
xattr_security.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
xattr_trusted.c sanitize xattr handler prototypes 2009-12-16 12:16:49 -05:00
xattr_user.c sanitize xattr handler prototypes 2009-12-16 12:16:49 -05:00
xattr.c ext2: Add ext2_sb_info s_lock spinlock 2010-05-21 19:30:39 +02:00
xattr.h Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
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