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| author | Chao Yu <chao@kernel.org> | 2023-11-22 15:47:15 +0100 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2023-11-28 19:59:51 +0100 |
| commit | d346fa09abff46988de9267b67b6900d9913d5a2 (patch) | |
| tree | da97310077218760313c3b334137fac0ef46d87d /Documentation/ABI | |
| parent | f2fs: show i_mode in trace_f2fs_new_inode() (diff) | |
| download | linux-d346fa09abff46988de9267b67b6900d9913d5a2.tar.xz linux-d346fa09abff46988de9267b67b6900d9913d5a2.zip | |
f2fs: sysfs: support discard_io_aware
It gives a way to enable/disable IO aware feature for background
discard, so that we can tune background discard more precisely
based on undiscard condition. e.g. force to disable IO aware if
there are large number of discard extents, and discard IO may
always be interrupted by frequent common IO.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 36c3cb547901..4f1d4e636d67 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -740,3 +740,9 @@ Description: When compress cache is on, it controls cached page If cached page percent exceed threshold, then deny caching compress page. The value should be in range of (0, 100], by default it was initialized as 20(%). + +What: /sys/fs/f2fs/<disk>/discard_io_aware +Date: November 2023 +Contact: "Chao Yu" <chao@kernel.org> +Description: It controls to enable/disable IO aware feature for background discard. + By default, the value is 1 which indicates IO aware is on. |