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-rw-r--r--Documentation/ABI/testing/sysfs-fs-f2fs17
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 94132745ecbe..c1314b7fe544 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -729,3 +729,20 @@ What: /sys/fs/f2fs/<disk>/last_age_weight
Date: January 2023
Contact: "Ping Xiong" <xiongping1@xiaomi.com>
Description: When DATA SEPARATION is on, it controls the weight of last data block age.
+
+What: /sys/fs/f2fs/<disk>/compress_watermark
+Date: February 2023
+Contact: "Yangtao Li" <frank.li@vivo.com>
+Description: When compress cache is on, it controls free memory watermark
+ in order to limit caching compress page. If free memory is lower
+ than watermark, 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>/compress_percent
+Date: February 2023
+Contact: "Yangtao Li" <frank.li@vivo.com>
+Description: When compress cache is on, it controls cached page
+ percent(compress pages / free_ram) in order to limit caching compress 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(%).