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| author | Jie Liu | 2014-01-22 00:48:36 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2014-01-22 01:19:42 +0100 |
| commit | 1ba2212bb3e9527a4b3d18692f5ffe204f29bb47 (patch) | |
| tree | 6a8acca5e30c05b48c1a2144ddc63a3430d5df69 /fs/ocfs2/ioctl.c | |
| parent | ocfs2: return EINVAL if the given range to discard is less than block size (diff) | |
| download | kernel-qcow2-linux-1ba2212bb3e9527a4b3d18692f5ffe204f29bb47.tar.gz kernel-qcow2-linux-1ba2212bb3e9527a4b3d18692f5ffe204f29bb47.tar.xz kernel-qcow2-linux-1ba2212bb3e9527a4b3d18692f5ffe204f29bb47.zip | |
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>
Diffstat (limited to 'fs/ocfs2/ioctl.c')
| -rw-r--r-- | fs/ocfs2/ioctl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c index 4de6a2af592f..8ca3c29accbf 100644 --- a/fs/ocfs2/ioctl.c +++ b/fs/ocfs2/ioctl.c @@ -980,6 +980,8 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) if (copy_from_user(&range, argp, sizeof(range))) return -EFAULT; + range.minlen = max_t(u64, q->limits.discard_granularity, + range.minlen); ret = ocfs2_trim_fs(sb, &range); if (ret < 0) return ret; |