diff options
| author | Brian Foster <bfoster@redhat.com> | 2015-06-04 13:03:34 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2015-06-04 13:03:34 +1000 |
| commit | 3cdaa1898ff3b16f69619cb5df2f45158e104817 (patch) | |
| tree | 40dc200db0e82978d6e12794e01e2d21147b75c1 /fs/xfs | |
| parent | 22ce1e1472fda6ce740cee966bb8e25a3cc662bd (diff) | |
| download | linux-3cdaa1898ff3b16f69619cb5df2f45158e104817.tar.bz2 | |
xfs: fix sparse inodes 32-bit compile failure
The kbuild test robot reports the following compilation failure with a
32-bit kernel configuration:
fs/built-in.o: In function `xfs_ifree_cluster':
>> xfs_inode.c:(.text+0x17ac84): undefined reference to `__umoddi3'
This is due to the use of the modulus operator on a 64-bit variable in
the ASSERT() added as part of the following commit:
xfs: skip unallocated regions of inode chunks in xfs_ifree_cluster()
This ASSERT() simply checks that the offset of the inode in a sparse
cluster is appropriately aligned. Since the maximum inode record offset
is 63 (for a 64 inode record) and the calculated offset here should be
something less than that, just use a 32-bit variable to store the offset
and call the do_mod() helper.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_inode.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 11a8c28c47bd..a17cf1f16498 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -2248,6 +2248,7 @@ xfs_ifree_cluster( int inodes_per_cluster; int nbufs; int i, j; + int ioffset; xfs_daddr_t blkno; xfs_buf_t *bp; xfs_inode_t *ip; @@ -2268,9 +2269,9 @@ xfs_ifree_cluster( * physically allocated. Skip the cluster if an inode falls into * a sparse region. */ - if ((xic->alloc & XFS_INOBT_MASK(inum - xic->first_ino)) == 0) { - ASSERT(((inum - xic->first_ino) % - inodes_per_cluster) == 0); + ioffset = inum - xic->first_ino; + if ((xic->alloc & XFS_INOBT_MASK(ioffset)) == 0) { + ASSERT(do_mod(ioffset, inodes_per_cluster) == 0); continue; } |