Merge tag 'cxl-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

[linux-2.6-microblaze.git] / Documentation / ABI / testing / sysfs-fs-f2fs

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index ef4b921..f627e70 100644 (file)
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -41,8 +41,7 @@ Description:  This parameter controls the number of prefree segments to be
 What:          /sys/fs/f2fs/<disk>/main_blkaddr
 Date:          November 2019
 Contact:       "Ramon Pantin" <pantin@google.com>
-Description:
-                Shows first block address of MAIN area.
+Description:   Shows first block address of MAIN area.
 
 What:          /sys/fs/f2fs/<disk>/ipu_policy
 Date:          November 2013
@@ -493,3 +492,23 @@ Contact:   "Chao Yu" <yuchao0@huawei.com>
 Description:   When ATGC is on, it controls age threshold to bypass GCing young
                candidates whose age is not beyond the threshold, by default it was
                initialized as 604800 seconds (equals to 7 days).
+
+What:          /sys/fs/f2fs/<disk>/gc_reclaimed_segments
+Date:          July 2021
+Contact:       "Daeho Jeong" <daehojeong@google.com>
+Description:   Show how many segments have been reclaimed by GC during a specific
+               GC mode (0: GC normal, 1: GC idle CB, 2: GC idle greedy,
+               3: GC idle AT, 4: GC urgent high, 5: GC urgent low)
+               You can re-initialize this value to "0".
+
+What:          /sys/fs/f2fs/<disk>/gc_segment_mode
+Date:          July 2021
+Contact:       "Daeho Jeong" <daehojeong@google.com>
+Description:   You can control for which gc mode the "gc_reclaimed_segments" node shows.
+               Refer to the description of the modes in "gc_reclaimed_segments".
+
+What:          /sys/fs/f2fs/<disk>/seq_file_ra_mul
+Date:          July 2021
+Contact:       "Daeho Jeong" <daehojeong@google.com>
+Description:   You can control the multiplier value of bdi device readahead window size
+               between 2 (default) and 256 for POSIX_FADV_SEQUENTIAL advise option.