aboutsummaryrefslogtreecommitdiff
path: root/fs/nilfs2/page.c
diff options
context:
space:
mode:
authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-07-18 10:42:25 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-07-23 10:02:15 +0900
commit4e13e66bee2d792c1aae21797f16c181024834eb (patch)
tree1fa51dade28bc025d9bda0e09dec1f202281a498 /fs/nilfs2/page.c
parent464ece88630d0fb715ca942eabb1da825046a534 (diff)
downloadlinux-4e13e66bee2d792c1aae21797f16c181024834eb.tar.gz
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.c')
-rw-r--r--fs/nilfs2/page.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index 8de3e1e4813..aab11db2cb0 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -37,7 +37,8 @@
#define NILFS_BUFFER_INHERENT_BITS \
((1UL << BH_Uptodate) | (1UL << BH_Mapped) | (1UL << BH_NILFS_Node) | \
- (1UL << BH_NILFS_Volatile) | (1UL << BH_NILFS_Allocated))
+ (1UL << BH_NILFS_Volatile) | (1UL << BH_NILFS_Allocated) | \
+ (1UL << BH_NILFS_Checked))
static struct buffer_head *
__nilfs_get_page_block(struct page *page, unsigned long block, pgoff_t index,
@@ -129,6 +130,7 @@ void nilfs_forget_buffer(struct buffer_head *bh)
lock_buffer(bh);
clear_buffer_nilfs_volatile(bh);
+ clear_buffer_nilfs_checked(bh);
clear_buffer_dirty(bh);
if (nilfs_page_buffers_clean(page))
__nilfs_clear_page_dirty(page);
@@ -480,6 +482,7 @@ void nilfs_clear_dirty_pages(struct address_space *mapping)
lock_buffer(bh);
clear_buffer_dirty(bh);
clear_buffer_nilfs_volatile(bh);
+ clear_buffer_nilfs_checked(bh);
clear_buffer_uptodate(bh);
clear_buffer_mapped(bh);
unlock_buffer(bh);