From: Christoph Hellwig <hch@lst.de>
Date: Thu, 13 Jul 2017 19:14:34 +0000 (-0700)
Subject: xfs: assert locking precondition in xfs_readlink_bmap_ilocked
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=29db2500f6a92d63834a40c5e9eebab34c78c53a;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

xfs: assert locking precondition in xfs_readlink_bmap_ilocked

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---

diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index 12cd9cf7de41..23a50d7aa46a 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c
@@ -61,6 +61,8 @@ xfs_readlink_bmap_ilocked(
 	int			fsblocks = 0;
 	int			offset;
 
+	ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
+
 	fsblocks = xfs_symlink_blocks(mp, pathlen);
 	error = xfs_bmapi_read(ip, 0, fsblocks, mval, &nmaps, 0);
 	if (error)