Commit 1ba2212b authored by Jie Liu's avatar Jie Liu Committed by Linus Torvalds

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 5c2ed62f ("ext4: Adjust minlen with
discard_granularity in the FITRIM ioctl") from Lukas Czerner.
Signed-off-by: default avatarJie Liu <jeff.liu@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent aa89762c
......@@ -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;
......
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