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Commit 568d994e authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Ben Myers
Browse files

xfs: use xfs_ilock_attr_map_shared in xfs_attr_list_int 



We might not have read in the extent list at this point, so make sure we
take the ilock exclusively if we have to do so.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
Signed-off-by: default avatarBen Myers <bpm@sgi.com>
parent 683cb941

fs/xfs/xfs_attr_list.c

+3 −5
Original line number Diff line number Diff line
@@ -507,17 +507,17 @@ xfs_attr_list_int( 
{

	int error;

	xfs_inode_t *dp = context->dp;

	uint		lock_mode;



	XFS_STATS_INC(xs_attr_list);



	if (XFS_FORCED_SHUTDOWN(dp->i_mount))

		return EIO;



	xfs_ilock(dp, XFS_ILOCK_SHARED);



	/*

	 * Decide on what work routines to call based on the inode size.

	 */

	lock_mode = xfs_ilock_attr_map_shared(dp);

	if (!xfs_inode_hasattr(dp)) {

		error = 0;

	} else if (dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) {
@@ -527,9 +527,7 @@ xfs_attr_list_int( 
	} else {

		error = xfs_attr_node_list(context);

	}



	xfs_iunlock(dp, XFS_ILOCK_SHARED);



	xfs_iunlock(dp, lock_mode);

	return error;

}