[PATCH 18/26] xfs: support error injection when freeing rt extents

Darrick J. Wong
2024-08-23T00:25:52Z

From: Darrick J. Wong <djwong@kernel.org>

A handful of fstests expect to be able to test what happens when extent
free intents fail to actually free the extent. Now that we're
supporting EFIs for realtime extents, add to xfs_rtfree_extent the same
injection point that exists in the regular extent freeing code.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
fs/xfs/libxfs/xfs_rtbitmap.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c
index dfac0e89409a9..c8958d3e0abe0 100644
--- a/fs/xfs/libxfs/xfs_rtbitmap.c
+++ b/fs/xfs/libxfs/xfs_rtbitmap.c
@@ -21,6 +21,7 @@
#include "xfs_rtbitmap.h"
#include "xfs_health.h"
#include "xfs_sb.h"
+#include "xfs_errortag.h"
#include "xfs_log.h"
#include "xfs_buf_item.h"

@@ -1065,6 +1066,9 @@ xfs_rtfree_extent(
ASSERT(rbmip->i_itemp != NULL);
xfs_assert_ilocked(rbmip, XFS_ILOCK_EXCL);

+ if (XFS_TEST_ERROR(false, mp, XFS_ERRTAG_FREE_EXTENT))
+ return -EIO;
+
error = xfs_rtcheck_alloc_range(&args, start, len);
if (error)
return error;