diff options
| author |   Eric Sandeen <sandeen@sandeen.net> | 2017-05-22 19:54:10 -0700 |
|---|---|---|
| committer |   Darrick J. Wong <darrick.wong@oracle.com> | 2017-05-25 09:42:25 -0700 |
| commit | a4d768e702de224cc85e0c8eac9311763403b368 (patch) | |
| tree | 2a6deacdcea6b7f9a9fc28ca4f438863d9442a5a /fs | |
| parent | xfs: avoid mount-time deadlock in CoW extent recovery (diff) | |
| download | linux-dev-a4d768e702de224cc85e0c8eac9311763403b368.tar.xz linux-dev-a4d768e702de224cc85e0c8eac9311763403b368.zip | |
xfs: fix unaligned access in xfs_btree_visit_blocks
This structure copy was throwing unaligned access warnings on sparc64:
Kernel unaligned access at TPC[1043c088] xfs_btree_visit_blocks+0x88/0xe0 [xfs]
xfs_btree_copy_ptrs does a memcpy, which avoids it.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_btree.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c index 5392674bf893..3a673ba201aa 100644 --- a/fs/xfs/libxfs/xfs_btree.c +++ b/fs/xfs/libxfs/xfs_btree.c @@ -4395,7 +4395,7 @@ xfs_btree_visit_blocks( xfs_btree_readahead_ptr(cur, ptr, 1); /* save for the next iteration of the loop */ - lptr = *ptr; + xfs_btree_copy_ptrs(cur, &lptr, ptr, 1); } /* for each buffer in the level */ |