From 662befda25fb16d7164633c39e9e20aeac5107d9 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Fri, 7 Feb 2014 16:11:53 +0800 Subject: 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 Signed-off-by: Jaegeuk Kim --- fs/f2fs/f2fs.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'fs/f2fs/f2fs.h') 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 *); -- cgit v1.2.3