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authorDave Chinner <dchinner@redhat.com>2012-05-08 20:48:53 +1000
committerBen Myers <bpm@sgi.com>2012-05-21 10:45:43 -0500
commitea562ed6e7df5acd9392d993882c39e855099165 (patch)
tree0f91e73ae2adba9e0469a7a87abe44c13a880c70 /fs/xfs/xfs_bmap.c
parent1307bbd2af67283131728637e9489002adb26f10 (diff)
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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.c2
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;
}