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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-07-18 03:42:25 +0200
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-07-23 03:02:15 +0200
commit4e13e66bee2d792c1aae21797f16c181024834eb (patch)
tree1fa51dade28bc025d9bda0e09dec1f202281a498 /fs/nilfs2/page.h
parentnilfs2: add btree get block function with readahead option (diff)
downloadlinux-4e13e66bee2d792c1aae21797f16c181024834eb.tar.xz
linux-4e13e66bee2d792c1aae21797f16c181024834eb.zip
nilfs2: introduce check flag to btree node buffer
nilfs_btree_get_block() now may return untested buffer due to read-ahead. This adds a new flag for buffer heads so that the btree code can check whether the buffer is already verified or not. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/page.h')
-rw-r--r--fs/nilfs2/page.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nilfs2/page.h b/fs/nilfs2/page.h
index 8abca4d1c1f8..f53d8da41ed7 100644
--- a/fs/nilfs2/page.h
+++ b/fs/nilfs2/page.h
@@ -34,11 +34,13 @@ enum {
BH_NILFS_Allocated = BH_PrivateStart,
BH_NILFS_Node,
BH_NILFS_Volatile,
+ BH_NILFS_Checked,
};
BUFFER_FNS(NILFS_Allocated, nilfs_allocated) /* nilfs private buffers */
BUFFER_FNS(NILFS_Node, nilfs_node) /* nilfs node buffers */
BUFFER_FNS(NILFS_Volatile, nilfs_volatile)
+BUFFER_FNS(NILFS_Checked, nilfs_checked) /* buffer is verified */
void nilfs_mark_buffer_dirty(struct buffer_head *bh);