linux/fs/ext4
Christoph Hellwig 907f4554e2 dquot: move dquot initialization responsibility into the filesystem
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>
2010-03-05 00:20:30 +01:00
..
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 ext4: fold ext4_free_blocks() and ext4_mb_free_blocks() 2009-11-22 07:44:56 -05:00
bitmap.c ext4: Change unsigned long to unsigned int 2008-11-05 00:14:04 -05:00
block_validity.c ext4: remove unused #include <linux/version.h> 2009-12-14 09:24:20 -05:00
dir.c ext4: Define a new set of flags for ext4_get_blocks() 2009-05-14 00:58:52 -04:00
ext4.h ext4: Fix quota accounting error with fallocate 2010-01-25 04:00:31 -05:00
ext4_extents.h ext4: Calculate metadata requirements more accurately 2010-01-01 02:41:30 -05:00
ext4_jbd2.c ext4: fold ext4_journal_forget() into ext4_forget() 2009-11-22 21:00:13 -05:00
ext4_jbd2.h ext4: Wait for proper transaction commit on fsync 2009-12-08 23:51:10 -05:00
extents.c ext4: Fix quota accounting error with fallocate 2010-01-25 04:00:31 -05:00
file.c dquot: move dquot initialization responsibility into the filesystem 2010-03-05 00:20:30 +01:00
fsync.c ext4, jbd2: Add barriers for file systems with exernal journals 2009-12-23 06:52:08 -05:00
hash.c ext4: Add support for non-native signed/unsigned htree hash algorithms 2008-10-28 13:21:44 -04:00
ialloc.c dquot: cleanup dquot drop routine 2010-03-05 00:20:30 +01:00
inode.c dquot: move dquot initialization responsibility into the filesystem 2010-03-05 00:20:30 +01:00
ioctl.c ext4: Fix insufficient checks in EXT4_IOC_MOVE_EXT 2009-12-06 23:38:31 -05:00
Kconfig ext4: Don't ask about supporting ext2/3 in ext4 if ext4 is not configured 2009-12-21 10:54:09 -05:00
Makefile ext4: online defrag -- Add EXT4_IOC_MOVE_EXT ioctl 2009-06-17 19:24:03 -04:00
mballoc.c dquot: cleanup space allocation / freeing routines 2010-03-05 00:20:28 +01:00
mballoc.h ext4: remove unused #include <linux/version.h> 2009-12-14 09:24:20 -05:00
migrate.c ext4: quota macros cleanup 2009-12-08 22:42:15 -05:00
move_extent.c ext4: Fix insufficient checks in EXT4_IOC_MOVE_EXT 2009-12-06 23:38:31 -05:00
namei.c dquot: move dquot initialization responsibility into the filesystem 2010-03-05 00:20:30 +01:00
resize.c ext4: Return the PTR_ERR of the correct pointer in setup_new_group_blocks() 2009-12-07 10:38:16 -05:00
super.c dquot: cleanup dquot drop routine 2010-03-05 00:20:30 +01:00
symlink.c ext4: Rename ext4dev to ext4 2008-10-10 20:02:48 -04:00
xattr.c dquot: cleanup space allocation / freeing routines 2010-03-05 00:20:28 +01:00
xattr.h ext4: Rename ext4dev to ext4 2008-10-10 20:02:48 -04:00
xattr_security.c sanitize xattr handler prototypes 2009-12-16 12:16:49 -05:00
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