nilfs2: eliminate nilfs_btnode_get function
This removes the obsolete nilfs_btnode_get() function and makes
nilfs_btree_get_block() directly call nilfs_btnode_submit_block().
This expansion will provide better opportunity for code optimization.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c
index 59658f0..471e269 100644
--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -147,27 +147,6 @@
return err;
}
-int nilfs_btnode_get(struct address_space *btnc, __u64 blocknr,
- sector_t pblocknr, struct buffer_head **pbh)
-{
- struct buffer_head *bh;
- int err;
-
- err = nilfs_btnode_submit_block(btnc, blocknr, pblocknr, pbh);
- if (err == -EEXIST) /* internal code (cache hit) */
- return 0;
- if (unlikely(err))
- return err;
-
- bh = *pbh;
- wait_on_buffer(bh);
- if (!buffer_uptodate(bh)) {
- brelse(bh);
- return -EIO;
- }
- return 0;
-}
-
/**
* nilfs_btnode_delete - delete B-tree node buffer
* @bh: buffer to be deleted
diff --git a/fs/nilfs2/btnode.h b/fs/nilfs2/btnode.h
index 3d5cf08..07da83f 100644
--- a/fs/nilfs2/btnode.h
+++ b/fs/nilfs2/btnode.h
@@ -44,8 +44,6 @@
__u64 blocknr);
int nilfs_btnode_submit_block(struct address_space *, __u64, sector_t,
struct buffer_head **);
-int nilfs_btnode_get(struct address_space *, __u64, sector_t,
- struct buffer_head **);
void nilfs_btnode_delete(struct buffer_head *);
int nilfs_btnode_prepare_change_key(struct address_space *,
struct nilfs_btnode_chkey_ctxt *);
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index 7b0cc4f..139b113 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -114,7 +114,18 @@
{
struct address_space *btnc =
&NILFS_BMAP_I((struct nilfs_bmap *)btree)->i_btnode_cache;
- return nilfs_btnode_get(btnc, ptr, 0, bhp, 0);
+ int err;
+
+ err = nilfs_btnode_submit_block(btnc, ptr, 0, bhp);
+ if (err)
+ return err == -EEXIST ? 0 : err;
+
+ wait_on_buffer(*bhp);
+ if (!buffer_uptodate(*bhp)) {
+ brelse(*bhp);
+ return -EIO;
+ }
+ return 0;
}
static int nilfs_btree_get_new_block(const struct nilfs_btree *btree,