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authorChao Yu <chao2.yu@samsung.com>2014-02-07 12:11:53 +0400
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2014-02-17 09:58:53 +0400
commit662befda25fb16d7164633c39e9e20aeac5107d9 (patch)
tree5c1b598aac5d326a0d524937584ee01ddcffa274 /fs/f2fs/f2fs.h
parent3375f696bd9cfdfd385e2460a9cf021d8ef01eab (diff)
downloadlinux-662befda25fb16d7164633c39e9e20aeac5107d9.tar.xz
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.h10
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 *);