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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_iomap.c
parent1307bbd2af67283131728637e9489002adb26f10 (diff)
downloadop-kernel-dev-ea562ed6e7df5acd9392d993882c39e855099165.zip
op-kernel-dev-ea562ed6e7df5acd9392d993882c39e855099165.tar.gz
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_iomap.c')
-rw-r--r--fs/xfs/xfs_iomap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 69c6e25..aadfce6 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -246,7 +246,7 @@ out_unlock:
out_bmap_cancel:
xfs_bmap_cancel(&free_list);
- xfs_trans_unreserve_quota_nblks(tp, ip, qblocks, 0, quota_flag);
+ xfs_trans_unreserve_quota_nblks(tp, ip, (long)qblocks, 0, quota_flag);
out_trans_cancel:
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
goto out_unlock;
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