From eef334e5776c8ef547ada4cec17549929fe590b4 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 6 Dec 2013 12:30:17 -0800 Subject: xfs: assert that we hold the ilock for extent map access Make sure that xfs_bmapi_read has the ilock held in some way, and that xfs_bmapi_write, xfs_bmapi_delay, xfs_bunmapi and xfs_iread_extents are called with the ilock held exclusively. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner Signed-off-by: Ben Myers --- fs/xfs/xfs_inode_fork.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/xfs/xfs_inode_fork.c') diff --git a/fs/xfs/xfs_inode_fork.c b/fs/xfs/xfs_inode_fork.c index cfee14a83cfe..e16985e1c2fd 100644 --- a/fs/xfs/xfs_inode_fork.c +++ b/fs/xfs/xfs_inode_fork.c @@ -431,6 +431,8 @@ xfs_iread_extents( xfs_ifork_t *ifp; xfs_extnum_t nextents; + ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); + if (unlikely(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) { XFS_ERROR_REPORT("xfs_iread_extents", XFS_ERRLEVEL_LOW, ip->i_mount); -- cgit v1.2.3