diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 14 | ||||
| -rw-r--r-- | Documentation/filesystems/f2fs.rst | 4 |
2 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 84a009aab1a1..9e3756625a81 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -655,3 +655,17 @@ Description: When space utilization exceeds this, do background DISCARD aggressi Does DISCARD forcibly in a period of given min_discard_issue_time when the number of discards is not 0 and set discard granularity to 1. Default: 80 + +What: /sys/fs/f2fs/<disk>/hot_data_age_threshold +Date: November 2022 +Contact: "Ping Xiong" <xiongping1@xiaomi.com> +Description: When DATA SEPARATION is on, it controls the age threshold to indicate + the data blocks as hot. By default it was initialized as 262144 blocks + (equals to 1GB). + +What: /sys/fs/f2fs/<disk>/warm_data_age_threshold +Date: November 2022 +Contact: "Ping Xiong" <xiongping1@xiaomi.com> +Description: When DATA SEPARATION is on, it controls the age threshold to indicate + the data blocks as warm. By default it was initialized as 2621440 blocks + (equals to 10GB). diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst index 67e1f3e86f32..220f3e0d3f55 100644 --- a/Documentation/filesystems/f2fs.rst +++ b/Documentation/filesystems/f2fs.rst @@ -347,6 +347,10 @@ memory=%s Control memory mode. This supports "normal" and "low" modes. Because of the nature of low memory devices, in this mode, f2fs will try to save memory sometimes by sacrificing performance. "normal" mode is the default mode and same as before. +age_extent_cache Enable an age extent cache based on rb-tree. It records + data block update frequency of the extent per inode, in + order to provide better temperature hints for data block + allocation. ======================== ============================================================ Debugfs Entries |