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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/sysfs.c | |
| 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/sysfs.c')
| -rw-r--r-- | fs/f2fs/sysfs.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 3d6bbdb743b0..c40e5d24df9f 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -156,6 +156,10 @@ static ssize_t f2fs_sbi_store(struct f2fs_attr *a, if (!strcmp(a->attr.name, "iostat_enable") && *ui == 0) f2fs_reset_iostat(sbi); + if (!strcmp(a->attr.name, "gc_urgent") && t == 1 && sbi->gc_thread) { + sbi->gc_thread->gc_wake = 1; + wake_up_interruptible_all(&sbi->gc_thread->gc_wait_queue_head); + } return count; } @@ -235,10 +239,13 @@ static struct f2fs_attr f2fs_attr_##_name = { \ .id = _id, \ } +F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent_sleep_time, + urgent_sleep_time); F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time); F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time); F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time); F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_idle, gc_idle); +F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent, gc_urgent); F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments); F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_small_discards, max_discards); F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, reserved_blocks, reserved_blocks); @@ -275,10 +282,12 @@ F2FS_FEATURE_RO_ATTR(inode_checksum, FEAT_INODE_CHECKSUM); #define ATTR_LIST(name) (&f2fs_attr_##name.attr) static struct attribute *f2fs_attrs[] = { + ATTR_LIST(gc_urgent_sleep_time), ATTR_LIST(gc_min_sleep_time), ATTR_LIST(gc_max_sleep_time), ATTR_LIST(gc_no_gc_sleep_time), ATTR_LIST(gc_idle), + ATTR_LIST(gc_urgent), ATTR_LIST(reclaim_segments), ATTR_LIST(max_small_discards), ATTR_LIST(batched_trim_sections), |