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authorNamjae Jeon <namjae.jeon@samsung.com>2013-08-04 23:10:15 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-08-06 22:00:18 +0900
commitd2dc095f4280ad5fdea33769e8e119fd16648426 (patch)
treef97a7bd3a06822c463e678770fb63dab52d0bc94 /Documentation/ABI
parentb59d0bae6ca30c496f298881616258f9cde0d9c6 (diff)
downloadblackbird-op-linux-d2dc095f4280ad5fdea33769e8e119fd16648426.tar.gz
blackbird-op-linux-d2dc095f4280ad5fdea33769e8e119fd16648426.zip
f2fs: add sysfs entries to select the gc policy
Add sysfs entry gc_idle to control the gc policy. Where gc_idle = 1 corresponds to selecting a cost benefit approach, while gc_idle = 2 corresponds to selecting a greedy approach to garbage collection. The selection is mutually exclusive one approach will work at any point. If gc_idle = 0, then this option is disabled. 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: change the select_gc_type() flow slightly] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-fs-f2fs6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 98e53a09530a..31942efcaf0e 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -18,3 +18,9 @@ Contact: "Namjae Jeon" <namjae.jeon@samsung.com>
Description:
Controls the default sleep time for gc_thread. Time
is in milliseconds.
+
+What: /sys/fs/f2fs/<disk>/gc_idle
+Date: July 2013
+Contact: "Namjae Jeon" <namjae.jeon@samsung.com>
+Description:
+ Controls the victim selection policy for garbage collection.
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