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Commit 683cb941 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Ben Myers
Browse files

xfs: use xfs_ilock_attr_map_shared in xfs_attr_get 



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 da51d32d

fs/xfs/xfs_attr.c

+3 −2
Original line number Diff line number Diff line
@@ -164,6 +164,7 @@ xfs_attr_get( 
{

	int		error;

	struct xfs_name	xname;

	uint		lock_mode;



	XFS_STATS_INC(xs_attr_get);
@@ -174,9 +175,9 @@ xfs_attr_get( 
	if (error)

		return error;



	xfs_ilock(ip, XFS_ILOCK_SHARED);

	lock_mode = xfs_ilock_attr_map_shared(ip);

	error = xfs_attr_get_int(ip, &xname, value, valuelenp, flags);

	xfs_iunlock(ip, XFS_ILOCK_SHARED);

	xfs_iunlock(ip, lock_mode);

	return(error);

}