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| author | Chao Yu <chao2.yu@samsung.com> | 2015-10-12 11:05:59 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-10-12 23:03:15 +0200 |
| commit | 26879fb101f28c554294eaf25ac7817a2825b180 (patch) | |
| tree | 06eef8e5fc29c7dd5638cf2f78cd0bcc46575d79 /fs/f2fs/f2fs.h | |
| parent | f2fs: don't tag REQ_META for temporary non-meta pages (diff) | |
| download | linux-26879fb101f28c554294eaf25ac7817a2825b180.tar.xz linux-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/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 6c0e83c5ced5..5f372c03de32 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1808,7 +1808,7 @@ struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); struct page *get_tmp_page(struct f2fs_sb_info *, pgoff_t); bool is_valid_blkaddr(struct f2fs_sb_info *, block_t, int); -int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int); +int ra_meta_pages(struct f2fs_sb_info *, block_t, int, int, bool); void ra_meta_pages_cond(struct f2fs_sb_info *, pgoff_t); long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); void add_dirty_inode(struct f2fs_sb_info *, nid_t, int type); |