[PATCH 4/4] xfs_repair: add post-phase error injection points
From: "Darrick J. Wong" <djwong@kernel.org>
Date: 2021-02-23 03:01:53
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Darrick J. Wong <djwong@kernel.org> Create an error injection point so that we can simulate repair failing after a certain phase. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Eric Sandeen <redacted> Reviewed-by: Brian Foster <redacted> --- repair/globals.c | 3 +++ repair/globals.h | 3 +++ repair/xfs_repair.c | 8 ++++++++ 3 files changed, 14 insertions(+)
diff --git a/repair/globals.c b/repair/globals.c
index 110d98b6..537d068b 100644
--- a/repair/globals.c
+++ b/repair/globals.c@@ -117,3 +117,6 @@ uint64_t *prog_rpt_done; int ag_stride; int thread_count; + +/* If nonzero, simulate failure after this phase. */ +int fail_after_phase;
diff --git a/repair/globals.h b/repair/globals.h
index 1d397b35..a9287320 100644
--- a/repair/globals.h
+++ b/repair/globals.h@@ -162,4 +162,7 @@ extern uint64_t *prog_rpt_done; extern int ag_stride; extern int thread_count; +/* If nonzero, simulate failure after this phase. */ +extern int fail_after_phase; + #endif /* _XFS_REPAIR_GLOBAL_H */
diff --git a/repair/xfs_repair.c b/repair/xfs_repair.c
index a9236bb7..64d7607f 100644
--- a/repair/xfs_repair.c
+++ b/repair/xfs_repair.c@@ -362,6 +362,10 @@ process_args(int argc, char **argv) if (report_corrected && no_modify) usage(); + + p = getenv("XFS_REPAIR_FAIL_AFTER_PHASE"); + if (p) + fail_after_phase = (int)strtol(p, NULL, 0); } void __attribute__((noreturn))
@@ -853,6 +857,10 @@ static inline void phase_end(int phase) { timestamp(PHASE_END, phase, NULL); + + /* Fail if someone injected an post-phase error. */ + if (fail_after_phase && phase == fail_after_phase) + platform_crash(); } int