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| author | Namjae Jeon <namjae.jeon@samsung.com> | 2013-08-04 16:09:40 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-08-06 14:53:34 +0200 |
| commit | b59d0bae6ca30c496f298881616258f9cde0d9c6 (patch) | |
| tree | 04c6a23cfed2ef045a56ca090cbfd510ca3e5e5e /Documentation/filesystems | |
| parent | f2fs: remove an unneeded kfree(NULL) (diff) | |
| download | linux-b59d0bae6ca30c496f298881616258f9cde0d9c6.tar.xz linux-b59d0bae6ca30c496f298881616258f9cde0d9c6.zip | |
f2fs: add sysfs support for controlling the gc_thread
Add sysfs entries to control the timing parameters for
f2fs gc thread.
Various Sysfs options introduced are:
gc_min_sleep_time: Min Sleep time for GC in ms
gc_max_sleep_time: Max Sleep time for GC in ms
gc_no_gc_sleep_time: Default Sleep time for GC in ms
Cc: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com>
Reviewed-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
[Jaegeuk Kim: fix an umount bug and some minor changes]
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/f2fs.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt index 0500c198cd08..5daf3bb2eef9 100644 --- a/Documentation/filesystems/f2fs.txt +++ b/Documentation/filesystems/f2fs.txt @@ -133,6 +133,32 @@ f2fs. Each file shows the whole f2fs information. - current memory footprint consumed by f2fs. ================================================================================ +SYSFS ENTRIES +================================================================================ + +Information about mounted f2f2 file systems can be found in +/sys/fs/f2fs. Each mounted filesystem will have a directory in +/sys/fs/f2fs based on its device name (i.e., /sys/fs/f2fs/sda). +The files in each per-device directory are shown in table below. + +Files in /sys/fs/f2fs/<devname> +(see also Documentation/ABI/testing/sysfs-fs-f2fs) +.............................................................................. + File Content + + gc_max_sleep_time This tuning parameter controls the maximum sleep + time for the garbage collection thread. Time is + in milliseconds. + + gc_min_sleep_time This tuning parameter controls the minimum sleep + time for the garbage collection thread. Time is + in milliseconds. + + gc_no_gc_sleep_time This tuning parameter controls the default sleep + time for the garbage collection thread. Time is + in milliseconds. + +================================================================================ USAGE ================================================================================ |