diff options
| author | Dave Chinner | 2012-05-08 12:48:53 +0200 |
|---|---|---|
| committer | Ben Myers | 2012-05-21 17:45:43 +0200 |
| commit | ea562ed6e7df5acd9392d993882c39e855099165 (patch) | |
| tree | 0f91e73ae2adba9e0469a7a87abe44c13a880c70 /fs/xfs/xfs_vnodeops.c | |
| parent | xfs: protect xfs_sync_worker with s_umount semaphore (diff) | |
| download | kernel-qcow2-linux-ea562ed6e7df5acd9392d993882c39e855099165.tar.gz kernel-qcow2-linux-ea562ed6e7df5acd9392d993882c39e855099165.tar.xz kernel-qcow2-linux-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_vnodeops.c')
| -rw-r--r-- | fs/xfs/xfs_vnodeops.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index 82b000f8ad2f..b6a82d817a82 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -1916,7 +1916,7 @@ xfs_alloc_file_space( error0: /* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */ 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); error1: /* Just cancel transaction */ xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT); |