diff options
| author | Chao Yu <chao@kernel.org> | 2026-01-04 10:07:17 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2026-01-07 03:17:06 +0000 |
| commit | e4b75621fc439399b94c4265cb54d2bda1177397 (patch) | |
| tree | b7e6b072df59ef6247895ff3d5ccb3fe6a33501a /Documentation/ABI/testing/sysfs-fs-f2fs | |
| parent | 79b3cebc70fcadf914d3ad1ae59d59cc62a47c46 (diff) | |
f2fs: sysfs: introduce max_lock_elapsed_time
This patch add a new sysfs node in /sys/fs/f2fs/<device>/max_lock_elapsed_time.
This is a threshold, once a thread enters critical region that lock covers,
total 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.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-fs-f2fs')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index c39a85e84b6b..648ddd0d59f6 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -939,3 +939,11 @@ Description: Controls write priority in multi-devices setups. A value of 0 means allocate_section_policy = 1 Prioritize writing to section before allocate_section_hint allocate_section_policy = 2 Prioritize writing to section after allocate_section_hint =========================== ========================================================== + +What: /sys/fs/f2fs/<disk>/max_lock_elapsed_time +Date: December 2025 +Contact: "Chao Yu" <chao@kernel.org> +Description: This is a threshold, once a thread enters critical region that lock covers, total + 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. |