tree 36beda22a4b7bc8697fbd05a02af4a2d0dab1b04
parent 19e8ac2721148a475833d7b5f893f9b81fbb0045
author Jie Liu <jeff.liu@oracle.com> 1390348115 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1390349982 -0800

ocfs2: return EINVAL if the given range to discard is less than block size

For FITRIM ioctl(2), we should not keep silence if the given range
length ls less than a block size as there is no data blocks would be
discareded.  Hence it should return EINVAL instead.  This issue can be
verified via xfstests/generic/288 which is used for FITRIM argument
handling tests.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>