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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-08-07 07:09:00 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-08-15 19:40:12 +0200 |
| commit | d9872a698c393e0d1abca86bf05b62712cbfc581 (patch) | |
| tree | e7c272fc1fed41d2a4590f381c0fa5bb983c02f9 /fs/f2fs/gc.h | |
| parent | f2fs: use IPU for cold files (diff) | |
| download | linux-d9872a698c393e0d1abca86bf05b62712cbfc581.tar.xz linux-d9872a698c393e0d1abca86bf05b62712cbfc581.zip | |
f2fs: introduce gc_urgent mode for background GC
This patch adds a sysfs entry to control urgent mode for background GC.
If this is set, background GC thread conducts GC with gc_urgent_sleep_time
all the time.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/gc.h')
| -rw-r--r-- | fs/f2fs/gc.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h index a993967dcdb9..57a9000ce3af 100644 --- a/fs/f2fs/gc.h +++ b/fs/f2fs/gc.h @@ -13,6 +13,7 @@ * whether IO subsystem is idle * or not */ +#define DEF_GC_THREAD_URGENT_SLEEP_TIME 500 /* 500 ms */ #define DEF_GC_THREAD_MIN_SLEEP_TIME 30000 /* milliseconds */ #define DEF_GC_THREAD_MAX_SLEEP_TIME 60000 #define DEF_GC_THREAD_NOGC_SLEEP_TIME 300000 /* wait 5 min */ @@ -27,12 +28,15 @@ struct f2fs_gc_kthread { wait_queue_head_t gc_wait_queue_head; /* for gc sleep time */ + unsigned int urgent_sleep_time; unsigned int min_sleep_time; unsigned int max_sleep_time; unsigned int no_gc_sleep_time; /* for changing gc mode */ unsigned int gc_idle; + unsigned int gc_urgent; + unsigned int gc_wake; }; struct gc_inode_list { |