tree 6a8acca5e30c05b48c1a2144ddc63a3430d5df69
parent aa89762c54800208d5afdcd8e6bf124818f17fe0
author Jie Liu <jeff.liu@oracle.com> 1390348116 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1390349982 -0800

ocfs2: adjust minlen with discard_granularity in the FITRIM ioctl

Adjust minlen with discard_granularity for FITRIM ioctl(2) if the given
minimum size in bytes is less than it because, discard granularity is
used to tell us that the minimum size of extent that can be discarded by
the storage device.

This is inspired by ext4 commit 5c2ed62fd447 ("ext4: Adjust minlen with
discard_granularity in the FITRIM ioctl") from Lukas Czerner.

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>