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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-07-13 19:33:19 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-07-15 15:21:23 -0700 |
| commit | 9dfa1baff76d08843aaf5e3c78f6da6950957702 (patch) | |
| tree | 72de844844bf3a78ed02ba11e36b405246bf8a0d /fs/f2fs/gc.c | |
| parent | 82e0a5aa5ddf794b3e1b21fcd091228736871882 (diff) | |
| download | blackbird-obmc-linux-9dfa1baff76d08843aaf5e3c78f6da6950957702.tar.gz blackbird-obmc-linux-9dfa1baff76d08843aaf5e3c78f6da6950957702.zip | |
f2fs: use blk_plug in all the possible paths
This patch reverts 19a5f5e2ef37 (f2fs: drop any block plugging),
and adds blk_plug in write paths additionally.
The main reason is that blk_start_plug can be used to wake up from low-power
mode before submitting further bios.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/gc.c')
| -rw-r--r-- | fs/f2fs/gc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 5c8acf754513..de6c41c32c62 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -808,6 +808,7 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi, { struct page *sum_page; struct f2fs_summary_block *sum; + struct blk_plug plug; unsigned int segno = start_segno; unsigned int end_segno = start_segno + sbi->segs_per_sec; int seg_freed = 0; @@ -825,6 +826,8 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi, unlock_page(sum_page); } + blk_start_plug(&plug); + for (segno = start_segno; segno < end_segno; segno++) { if (get_valid_blocks(sbi, segno, 1) == 0) @@ -862,6 +865,8 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi, f2fs_submit_merged_bio(sbi, (type == SUM_TYPE_NODE) ? NODE : DATA, WRITE); + blk_finish_plug(&plug); + if (gc_type == FG_GC) { while (start_segno < end_segno) if (get_valid_blocks(sbi, start_segno++, 1) == 0) |
