[PATCH 25/46] xfs: support error injection when freeing rt extents

Darrick J. Wong
2024-12-06T23:57:53Z

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

Source kernel commit: fc91d9430e5dd2008ef6c1350fa15c1a0ed17f11

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>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
libxfs/xfs_rtbitmap.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/libxfs/xfs_rtbitmap.c b/libxfs/xfs_rtbitmap.c
index 580e74b7d317db..b6874885107f09 100644
--- a/libxfs/xfs_rtbitmap.c
+++ b/libxfs/xfs_rtbitmap.c
@@ -19,6 +19,7 @@
#include "xfs_rtbitmap.h"
#include "xfs_health.h"
#include "xfs_sb.h"
+#include "xfs_errortag.h"

/*
* Realtime allocator bitmap functions shared with userspace.
@@ -1061,6 +1062,9 @@ 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;