Lukas Czerner 4143179218 ext4: check if device support discard in FITRIM ioctl ... For a device that does not support discard, the FITRIM ioctl returns -EOPNOTSUPP when blkdev_issue_discard() returns this error code, which is how the user is informed that the device does not support discard. If there are no suitable free extents to be trimmed, then FITRIM will return success even though the device does not support discard, which could confuse the user. So check explicitly if the device supports discard and return an error code at the beginning of the FITRIM ioctl processing. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>		2011-02-23 12:42:32 -05:00
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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: use bio layer instead of buffer layer in mpage_da_submit_io	2010-10-27 21:30:10 -04:00
acl.c	ext2,3,4: provide simple rcu-walk ACL implementation	2011-01-07 17:50:30 +11:00
acl.h	fs: provide rcu-walk aware permission i_ops	2011-01-07 17:50:29 +11:00
balloc.c	ext4: replace i_delalloc_reserved_flag with EXT4_STATE_DELALLOC_RESERVED	2011-01-10 12:12:36 -05:00
bitmap.c	ext4: Change unsigned long to unsigned int	2008-11-05 00:14:04 -05:00
block_validity.c	ext4: rename {exit,init}_ext4_*() to ext4_{exit,init}_*()	2010-10-27 21:30:14 -04:00
dir.c	ext4: Use ext4_error_file() to print the pathname to the corrupted inode	2011-01-10 12:10:55 -05:00
ext4.h	ext4: serialize unaligned asynchronous DIO	2011-02-12 08:17:34 -05:00
ext4_extents.h	ext4: drop ec_type from the ext4_ext_cache structure	2011-01-10 12:13:26 -05:00
ext4_jbd2.c	ext4: Pass line numbers to ext4_error() and friends	2010-07-27 11:56:40 -04:00
ext4_jbd2.h	ext4: dynamically allocate the jbd2_inode in ext4_inode_info as necessary	2011-01-10 12:29:43 -05:00
extents.c	ext4: Fix sparse warning: Using plain integer as NULL pointer	2011-02-21 21:01:42 -05:00
file.c	ext4: serialize unaligned asynchronous DIO	2011-02-12 08:17:34 -05:00
fsync.c	ext4: flush the i_completed_io_list during ext4_truncate	2011-01-10 12:47:05 -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	ext4: Fix sparse warning: Using plain integer as NULL pointer	2011-02-21 21:01:42 -05:00
inode.c	ext4: Fix sparse warning: Using plain integer as NULL pointer	2011-02-21 21:01:42 -05:00
ioctl.c	ext4: check if device support discard in FITRIM ioctl	2011-02-23 12:42:32 -05:00
mballoc.c	ext4: mark file-local functions and variables as static	2011-02-23 12:22:49 -05:00
mballoc.h	ext4: consolidate in_range() definitions	2010-03-03 23:55:01 -05:00
migrate.c	ext4: Fix sparse warning: Using plain integer as NULL pointer	2011-02-21 21:01:42 -05:00
move_extent.c	ext4: rename {ext,idx}_pblock and inline small extent functions	2010-10-27 21:30:14 -04:00
namei.c	ext4: add error checking to calls to ext4_handle_dirty_metadata()	2011-01-10 12:46:59 -05:00
page-io.c	ext4: Fix sparse warning: Using plain integer as NULL pointer	2011-02-21 21:01:42 -05:00
resize.c	ext4: fix compile warnings with EXT4FS_DEBUG enabled	2011-02-21 20:39:58 -05:00
super.c	ext4: mark file-local functions and variables as static	2011-02-23 12:22:49 -05:00
symlink.c	ext4: symlink must be handled via filesystem specific operation	2010-05-16 02:00:00 -04:00
xattr.c	ext4: Fix sparse warning: Using plain integer as NULL pointer	2011-02-21 21:01:42 -05:00
xattr.h	ext4: fix compile with CONFIG_EXT4_FS_XATTR disabled	2010-10-28 09:29:17 -07:00
xattr_security.c	ext4: constify xattr_handler	2010-05-21 18:31:19 -04:00
xattr_trusted.c	ext4: constify xattr_handler	2010-05-21 18:31:19 -04:00
xattr_user.c	ext4: constify xattr_handler	2010-05-21 18:31:19 -04:00