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| author | Chao Yu <yuchao0@huawei.com> | 2017-04-25 00:21:35 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-04-25 14:18:45 -0700 |
| commit | d618ebaf0aa83d175658aea5291e0c459d471d39 (patch) | |
| tree | 046e85ec35859068b4b99bd10348ff2c0db64edd /fs/f2fs/segment.c | |
| parent | 34e159da418be46986456daf21a339932f349b63 (diff) | |
| download | lwn-d618ebaf0aa83d175658aea5291e0c459d471d39.tar.gz lwn-d618ebaf0aa83d175658aea5291e0c459d471d39.zip | |
f2fs: enable small discard by default
This patch start to enable 4K granularity small discard by default
when realtime discard is on, so, in seriously fragmented space,
small size discard can be issued in time to avoid useless storage
space occupying of invalid filesystem's data, then performance of
flash storage can be recovered.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/segment.c')
| -rw-r--r-- | fs/f2fs/segment.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index b27ae5f6a87f..7ded7da5b7cb 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1362,7 +1362,7 @@ static int create_discard_cmd_control(struct f2fs_sb_info *sbi) atomic_set(&dcc->issing_discard, 0); atomic_set(&dcc->discard_cmd_cnt, 0); dcc->nr_discards = 0; - dcc->max_discards = 0; + dcc->max_discards = MAIN_SEGS(sbi) << sbi->log_blocks_per_seg; dcc->undiscard_blks = 0; dcc->root = RB_ROOT; |