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| author | Chao Yu <yuchao0@huawei.com> | 2021-02-22 11:07:33 +0100 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-03-12 22:16:42 +0100 |
| commit | 43f8c47ea7d59c7b2270835f1d7c4618a1ea27b6 (patch) | |
| tree | 1c056b5cf8b92c3fec9d733e6de555d36d2365e5 /fs/f2fs | |
| parent | f2fs: update comments for explicit memory barrier (diff) | |
| download | linux-43f8c47ea7d59c7b2270835f1d7c4618a1ea27b6.tar.xz linux-43f8c47ea7d59c7b2270835f1d7c4618a1ea27b6.zip | |
f2fs: check discard command number before traversing discard pending list
In trim thread, let's add a condition to check discard command number
before traversing discard pending list, it can avoid unneeded traversing
if there is no discard command.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/segment.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 29403540ff6e..b5a40a39a03f 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1759,6 +1759,8 @@ static int issue_discard_thread(void *data) wait_ms = dpolicy.max_interval; continue; } + if (!atomic_read(&dcc->discard_cmd_cnt)) + continue; if (sbi->gc_mode == GC_URGENT_HIGH) __init_discard_policy(sbi, &dpolicy, DPOLICY_FORCE, 1); |