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| author | Chao Yu <chao2.yu@samsung.com> | 2014-02-07 16:11:53 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-02-17 14:58:53 +0900 |
| commit | 662befda25fb16d7164633c39e9e20aeac5107d9 (patch) | |
| tree | 5c1b598aac5d326a0d524937584ee01ddcffa274 /fs/f2fs/f2fs.h | |
| parent | 3375f696bd9cfdfd385e2460a9cf021d8ef01eab (diff) | |
| download | lwn-662befda25fb16d7164633c39e9e20aeac5107d9.tar.gz lwn-662befda25fb16d7164633c39e9e20aeac5107d9.zip | |
f2fs: introduce ra_meta_pages to readahead CP/NAT/SIT pages
This patch help us to cleanup the readahead code by merging ra_{sit,nat}_pages
function into ra_meta_pages.
Additionally the new function is used to readahead cp block in
recover_orphan_inodes.
Change log from v1:
o fix a deadloop bug pointed by Jaegeuk Kim.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 4841d1225ea0..817eccced9fe 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -88,6 +88,15 @@ enum { SIT_BITMAP }; +/* + * For CP/NAT/SIT readahead + */ +enum { + META_CP, + META_NAT, + META_SIT +}; + /* for the list of orphan inodes */ struct orphan_inode_entry { struct list_head list; /* list head */ @@ -1176,6 +1185,7 @@ void destroy_segment_manager_caches(void); */ struct page *grab_meta_page(struct f2fs_sb_info *, pgoff_t); struct page *get_meta_page(struct f2fs_sb_info *, pgoff_t); +int ra_meta_pages(struct f2fs_sb_info *, int, int, int); long sync_meta_pages(struct f2fs_sb_info *, enum page_type, long); int acquire_orphan_inode(struct f2fs_sb_info *); void release_orphan_inode(struct f2fs_sb_info *); |