[PATCH 1/4] xfs: add asserts for the mmap lock in xfs_{insert,collapse}_file_space

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Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 fs/xfs/xfs_bmap_util.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 034f3429ca8c..170b74c7f2d5 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -1334,6 +1334,8 @@ xfs_collapse_file_space(
 	bool			done = false;
 
 	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
+	ASSERT(xfs_isilocked(ip, XFS_MMAPLOCK_EXCL));
+
 	trace_xfs_collapse_file_space(ip);
 
 	error = xfs_free_file_space(ip, offset, len);
@@ -1408,6 +1410,8 @@ xfs_insert_file_space(
 	bool			done = false;
 
 	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
+	ASSERT(xfs_isilocked(ip, XFS_MMAPLOCK_EXCL));
+
 	trace_xfs_insert_file_space(ip);
 
 	error = xfs_prepare_shift(ip, offset);
-- 
2.14.2

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