diff options
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 9a8ec2290f68..ea6474db8a31 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -963,3 +963,27 @@ Description: This sysfs entry can be used to change type of injected timeout: 0x00000003 Simulate Non-IO type sleep time 0x00000004 Simulate runnable time ========== =============================== + +What: /sys/fs/f2fs/<disk>/adjust_lock_priority +Date: January 2026 +Contact: "Chao Yu" <chao@kernel.org> +Description: This sysfs entry can be used to enable/disable to adjust priority for task + which is in critical region covered by lock. + ========== ================== + Flag_Value Flag_Description + ========== ================== + 0x00000000 Disabled (default) + 0x00000001 cp_rwsem + 0x00000002 node_change + 0x00000004 node_write + 0x00000008 gc_lock + 0x00000010 cp_global + 0x00000020 io_rwsem + ========== ================== + +What: /sys/fs/f2fs/<disk>/lock_duration_priority +Date: January 2026 +Contact: "Chao Yu" <chao@kernel.org> +Description: f2fs can tune priority of thread which has entered into critical region covered by + f2fs rwsemphore lock. This sysfs entry can be used to control priority value, the + range is [100,139], by default the value is 120. |