f2fs: update documents and a MAINTAINERS entry

This patch adds missing some description of sysfs entries in
 - Documentation/ABI/testing/sysfs-fs-f2fs
 - Documentation/filesystems/f2fs.txt.

And it adds a maintained document entry of F2FS in MAINTAINERS.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 31942ef..32b0809 100644 (file)
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -24,3 +24,34 @@ Date:                July 2013
 Contact:       "Namjae Jeon" <namjae.jeon@samsung.com>
 Description:
                 Controls the victim selection policy for garbage collection.
+
+What:          /sys/fs/f2fs/<disk>/reclaim_segments
+Date:          October 2013
+Contact:       "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
+Description:
+                Controls the issue rate of segment discard commands.
+
+What:          /sys/fs/f2fs/<disk>/ipu_policy
+Date:          November 2013
+Contact:       "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
+Description:
+                Controls the in-place-update policy.
+
+What:          /sys/fs/f2fs/<disk>/min_ipu_util
+Date:          November 2013
+Contact:       "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
+Description:
+                Controls the FS utilization condition for the in-place-update
+                policies.
+
+What:          /sys/fs/f2fs/<disk>/max_small_discards
+Date:          November 2013
+Contact:       "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
+Description:
+                Controls the issue rate of small discard commands.
+
+What:          /sys/fs/f2fs/<disk>/max_victim_search
+Date:          January 2014
+Contact:       "Jaegeuk Kim" <jaegeuk.kim@samsung.com>
+Description:
+                Controls the number of trials to find a victim segment.

diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 998e698..b8d2849 100644 (file)
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -190,6 +190,11 @@ Files in /sys/fs/f2fs/<devname>
                               of the filesystem utilization, and used by
                               F2FS_IPU_UTIL and F2FS_IPU_SSR_UTIL policies.
 
+ max_victim_search           This parameter controls the number of trials to
+                             find a victim segment when conducting SSR and
+                             cleaning operations. The default value is 4096
+                             which covers 8GB block address range.
+
 ================================================================================
 USAGE
 ================================================================================

diff --git a/MAINTAINERS b/MAINTAINERS
index d5e4ff3..bd58e8e 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3629,6 +3629,7 @@ W:        http://en.wikipedia.org/wiki/F2FS
 T:     git git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git
 S:     Maintained
 F:     Documentation/filesystems/f2fs.txt
+F:     Documentation/ABI/testing/sysfs-fs-f2fs
 F:     fs/f2fs/
 F:     include/linux/f2fs_fs.h