diff options
| author | Chao Yu <chao@kernel.org> | 2026-01-04 10:07:29 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2026-01-07 03:17:08 +0000 |
| commit | d36de29f4bb59b24e57ff22403baae6fc7e89bd8 (patch) | |
| tree | ecf160928cb95cc3710efcce15a16fef8d7e0f9e /Documentation/ABI/testing | |
| parent | c56254e2e04216839699937a04aac18c585e833e (diff) | |
f2fs: sysfs: introduce inject_lock_timeout
This patch adds a new sysfs node in /sys/fs/f2fs/<disk>/inject_lock_timeout,
it relies on CONFIG_F2FS_FAULT_INJECTION kernel config.
It can be used to simulate different type of timeout in lock duration.
========== ===============================
Flag_Value Flag_Description
========== ===============================
0x00000000 No timeout (default)
0x00000001 Simulate running time
0x00000002 Simulate IO type sleep time
0x00000003 Simulate Non-IO type sleep time
0x00000004 Simulate runnable time
========== ===============================
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 4b0bec3c0746..ca9ed3b44b31 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -948,3 +948,17 @@ Description: This is a threshold, once a thread enters critical region that lock elapsed time exceeds this threshold, f2fs will print tracepoint to dump information of related context. This sysfs entry can be used to control the value of threshold, by default, the value is 500 ms. + +What: /sys/fs/f2fs/<disk>/inject_timeout_type +Date: December 2025 +Contact: "Chao Yu" <chao@kernel.org> +Description: This sysfs entry can be used to change type of injected timeout: + ========== =============================== + Flag_Value Flag_Description + ========== =============================== + 0x00000000 No timeout (default) + 0x00000001 Simulate running time + 0x00000002 Simulate IO type sleep time + 0x00000003 Simulate Non-IO type sleep time + 0x00000004 Simulate runnable time + ========== =============================== |