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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-07-18 10:42:23 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-07-23 10:02:15 +0900
commit26dfdd8e29f28c08aa67861b3c83d0f3f7d30cee (patch)
tree3cc14a71010b454f6524006e973147837f040a39 /fs/nilfs2/btnode.h
parentf8e6cc013b896d75d6ce4ec9e168014af1257fd8 (diff)
downloadop-kernel-dev-26dfdd8e29f28c08aa67861b3c83d0f3f7d30cee.zip
op-kernel-dev-26dfdd8e29f28c08aa67861b3c83d0f3f7d30cee.tar.gz
nilfs2: add read ahead mode to nilfs_btnode_submit_block
This adds mode argument to nilfs_btnode_submit_block() function and allows it to issue a read-ahead request. An optional submit_ptr argument is also added to store the actual block address for which bio is sent. submit_ptr is used for a series of read-ahead requests, and helps to decide if each requested block is continous to the previous one on disk. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/btnode.h')
-rw-r--r--fs/nilfs2/btnode.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/nilfs2/btnode.h b/fs/nilfs2/btnode.h
index 07da83f..7903749 100644
--- a/fs/nilfs2/btnode.h
+++ b/fs/nilfs2/btnode.h
@@ -42,8 +42,8 @@ void nilfs_btnode_cache_init(struct address_space *, struct backing_dev_info *);
void nilfs_btnode_cache_clear(struct address_space *);
struct buffer_head *nilfs_btnode_create_block(struct address_space *btnc,
__u64 blocknr);
-int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t,
- struct buffer_head **);
+int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t, int,
+ struct buffer_head **, sector_t *);
void nilfs_btnode_delete(struct buffer_head *);
int nilfs_btnode_prepare_change_key(struct address_space *,
struct nilfs_btnode_chkey_ctxt *);
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