f2fs: doc: fix description of max_small_discards

The description of max_small_discards is out-of-update in below two
aspects, fix it.
- it is disabled by default
- small discards will be issued during checkpoint

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index ad3d76d37c8baf66c32e039864953ffabc12ad3e..36c3cb5479013a30dfe5e73acc2a9f1a37cdde54 100644 (file)
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -102,9 +102,9 @@ What:               /sys/fs/f2fs/<disk>/max_small_discards
 Date:          November 2013
 Contact:       "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
 Description:   Controls the issue rate of discard commands that consist of small
-               blocks less than 2MB. The candidates to be discarded are cached until
-               checkpoint is triggered, and issued during the checkpoint.
-               By default, it is disabled with 0.
+               blocks less than 2MB. The candidates to be discarded are cached during
+               checkpoint, and issued by issue_discard thread after checkpoint.
+               It is enabled by default.
 
 What:          /sys/fs/f2fs/<disk>/max_ordered_discard
 Date:          October 2022