diff options
| author |   Chao Yu <chao2.yu@samsung.com> | 2015-10-12 17:05:59 +0800 |
|---|---|---|
| committer |   Jaegeuk Kim <jaegeuk@kernel.org> | 2015-10-12 14:03:15 -0700 |
| commit | 26879fb101f28c554294eaf25ac7817a2825b180 (patch) | |
| tree | 06eef8e5fc29c7dd5638cf2f78cd0bcc46575d79 /fs/f2fs/gc.c | |
| parent | f2fs: don't tag REQ_META for temporary non-meta pages (diff) | |
| download | linux-dev-26879fb101f28c554294eaf25ac7817a2825b180.tar.xz linux-dev-26879fb101f28c554294eaf25ac7817a2825b180.zip | |
f2fs: support lower priority asynchronous readahead in ra_meta_pages
Now, we use ra_meta_pages to reads continuous physical blocks as much as
possible to improve performance of following reads. However, ra_meta_pages
uses a synchronous readahead approach by submitting bio with READ, as READ
is with high priority, it can not be used in the case of preloading blocks,
and it's not sure when these RAed pages will be used.
This patch supports asynchronous readahead in ra_meta_pages by tagging bio
with READA flag in order to allow preloading.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/gc.c')
| -rw-r--r-- | fs/f2fs/gc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 94278dbbdf7c..3f19634e2aa5 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -840,7 +840,7 @@ gc_more: /* readahead multi ssa blocks those have contiguous address */ if (sbi->segs_per_sec > 1) ra_meta_pages(sbi, GET_SUM_BLOCK(sbi, segno), sbi->segs_per_sec, - META_SSA); + META_SSA, true); for (i = 0; i < sbi->segs_per_sec; i++) { /* |