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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 /fs/f2fs/gc.h
parentb59d0bae6ca30c496f298881616258f9cde0d9c6 (diff)
downloadop-kernel-dev-d2dc095f4280ad5fdea33769e8e119fd16648426.zip
op-kernel-dev-d2dc095f4280ad5fdea33769e8e119fd16648426.tar.gz
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 'fs/f2fs/gc.h')
-rw-r--r--fs/f2fs/gc.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h
index f4bf44c..c22dee9 100644
--- a/fs/f2fs/gc.h
+++ b/fs/f2fs/gc.h
@@ -30,6 +30,9 @@ struct f2fs_gc_kthread {
unsigned int min_sleep_time;
unsigned int max_sleep_time;
unsigned int no_gc_sleep_time;
+
+ /* for changing gc mode */
+ unsigned int gc_idle;
};
struct inode_entry {
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