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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-01-26 17:41:23 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-02-11 17:04:44 -0800 |
| commit | bba681cbb231920a786cd7303462fb2632af6f36 (patch) | |
| tree | 9937a96f18dec591769f0fc677587148c24fac9e /Documentation/ABI | |
| parent | 487261f39bcd8983f55c611e299f70f34659674b (diff) | |
| download | talos-obmc-linux-bba681cbb231920a786cd7303462fb2632af6f36.tar.gz talos-obmc-linux-bba681cbb231920a786cd7303462fb2632af6f36.zip | |
f2fs: introduce a batched trim
This patch introduces a batched trimming feature, which submits split discard
commands.
This is to avoid long latency due to huge trim commands.
If fstrim was triggered ranging from 0 to the end of device, we should lock
all the checkpoint-related mutexes, resulting in very long latency.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
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 6f9157f16725..2c4cc42006e8 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -74,3 +74,9 @@ Date: March 2014 Contact: "Jaegeuk Kim" <jaegeuk.kim@samsung.com> Description: Controls the memory footprint used by f2fs. + +What: /sys/fs/f2fs/<disk>/trim_sections +Date: February 2015 +Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> +Description: + Controls the trimming rate in batch mode. |
