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author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-11-13 16:49:09 +0900 |
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committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-11-20 10:05:50 +0900 |
commit | 1376e931b75f954057b1547ba25fcba594cef804 (patch) | |
tree | b8e75d8dddb705c661542b534b4a74f9e1e87aa4 /fs/nilfs2 | |
parent | 75f65edfcc4a19d14fc8ab860846fad070c8db49 (diff) | |
download | kernel_samsung_smdk4412-1376e931b75f954057b1547ba25fcba594cef804.zip kernel_samsung_smdk4412-1376e931b75f954057b1547ba25fcba594cef804.tar.gz kernel_samsung_smdk4412-1376e931b75f954057b1547ba25fcba594cef804.tar.bz2 |
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>
Diffstat (limited to 'fs/nilfs2')
-rw-r--r-- | fs/nilfs2/btnode.c | 21 | ||||
-rw-r--r-- | fs/nilfs2/btnode.h | 2 | ||||
-rw-r--r-- | fs/nilfs2/btree.c | 13 |
3 files changed, 12 insertions, 24 deletions
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 @@ out_locked: 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 @@ 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_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 @@ static int nilfs_btree_get_block(const struct nilfs_btree *btree, __u64 ptr, { 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, |