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authorEric Sandeen <sandeen@sandeen.net>2017-05-22 19:54:10 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2017-05-25 09:42:25 -0700
commita4d768e702de224cc85e0c8eac9311763403b368 (patch)
tree2a6deacdcea6b7f9a9fc28ca4f438863d9442a5a
parent3ecb3ac7b950ff8f6c6a61e8b7b0d6e3546429a0 (diff)
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>
-rw-r--r--fs/xfs/libxfs/xfs_btree.c2
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 */