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| author | Jie Liu | 2013-11-20 09:08:53 +0100 |
|---|---|---|
| committer | Ben Myers | 2013-12-10 17:00:33 +0100 |
| commit | 2f42d612e7d4c4fb1819ea7b2b6e18938714ae7a (patch) | |
| tree | 4c09011b252a333c6fbaa17d00737a2605a53409 /fs/xfs/xfs_fsops.c | |
| parent | xfs: underflow bug in xfs_attrlist_by_handle() (diff) | |
| download | kernel-qcow2-linux-2f42d612e7d4c4fb1819ea7b2b6e18938714ae7a.tar.gz kernel-qcow2-linux-2f42d612e7d4c4fb1819ea7b2b6e18938714ae7a.tar.xz kernel-qcow2-linux-2f42d612e7d4c4fb1819ea7b2b6e18938714ae7a.zip | |
xfs: don't perform discard if the given range length is less than block size
For discard operation, we should return EINVAL if the given range length
is less than a block size, otherwise it will go through the file system
to discard data blocks as the end range might be evaluated to -1, e.g,
# fstrim -v -o 0 -l 100 /xfs7
/xfs7: 9811378176 bytes were trimmed
This issue can be triggered via xfstests/generic/288.
Also, it seems to get the request queue pointer via bdev_get_queue()
instead of the hard code pointer dereference is not a bad thing.
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit f9fd0135610084abef6867d984e9951c3099950d)
Diffstat (limited to 'fs/xfs/xfs_fsops.c')
0 files changed, 0 insertions, 0 deletions