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| author | Dave Chinner <dchinner@redhat.com> | 2012-05-08 20:48:53 +1000 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2012-05-21 10:45:43 -0500 |
| commit | ea562ed6e7df5acd9392d993882c39e855099165 (patch) | |
| tree | 0f91e73ae2adba9e0469a7a87abe44c13a880c70 /fs/xfs/xfs_bmap.c | |
| parent | 1307bbd2af67283131728637e9489002adb26f10 (diff) | |
| download | linux-3.10-ea562ed6e7df5acd9392d993882c39e855099165.tar.gz linux-3.10-ea562ed6e7df5acd9392d993882c39e855099165.tar.bz2 linux-3.10-ea562ed6e7df5acd9392d993882c39e855099165.zip | |
xfs: fix delalloc quota accounting on failure
xfstest 270 was causing quota reservations way beyond what was sane
(ten to hundreds of TB) for a 4GB filesystem. There's a sign problem
in the error handling path of xfs_bmapi_reserve_delalloc() because
xfs_trans_unreserve_quota_nblks() simple negates the value passed -
which doesn't work for an unsigned variable. This causes
reservations of close to 2^32 block instead of removing a
reservation of a handful of blocks.
Fix the same problem in the other xfs_trans_unreserve_quota_nblks()
callers where unsigned integer variables are used, too.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_bmap.c')
| -rw-r--r-- | fs/xfs/xfs_bmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 478bce9e404..58b815ec8c9 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -4526,7 +4526,7 @@ out_unreserve_blocks: xfs_icsb_modify_counters(mp, XFS_SBS_FDBLOCKS, alen, 0); out_unreserve_quota: if (XFS_IS_QUOTA_ON(mp)) - xfs_trans_unreserve_quota_nblks(NULL, ip, alen, 0, rt ? + xfs_trans_unreserve_quota_nblks(NULL, ip, (long)alen, 0, rt ? XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS); return error; } |