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-rw-r--r--Documentation/ABI/testing/sysfs-fs-f2fs13
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index ce189acd1908..66ee15681983 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -898,3 +898,16 @@ Description:
- "compat": Hash-based lookup with a linear search fallback enabled
- "auto:perf": lookup_mode is auto and fallback is disabled on-disk
- "auto:compat": lookup_mode is auto and fallback is enabled on-disk
+
+What: /sys/fs/f2fs/<disk>/bggc_io_aware
+Date: August 2025
+Contact: "Liao Yuanhong" <liaoyuanhong@vivo.com>
+Description: Used to adjust the BG_GC priority when pending IO, with a default value
+ of 0. Specifically, for ZUFS, the default value is 1.
+
+ ================== ======================================================
+ value description
+ bggc_io_aware = 0 skip background GC if there is any kind of pending IO
+ bggc_io_aware = 1 skip background GC if there is pending read IO
+ bggc_io_aware = 2 don't aware IO for background GC
+ ================== ======================================================