summaryrefslogtreecommitdiffstats
path: root/fs/nilfs2/gcinode.c
diff options
context:
space:
mode:
authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-07-16 23:52:40 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-07-23 10:02:13 +0900
commit1d5385b9f30ae43209459db424416a3e1d8f2bde (patch)
tree202a19586853da9ec598645b5d289d4a0164b232 /fs/nilfs2/gcinode.c
parentcfa913a5077f7619869b2b4d1bf23ccb4f8b3d7b (diff)
downloadop-kernel-dev-1d5385b9f30ae43209459db424416a3e1d8f2bde.zip
op-kernel-dev-1d5385b9f30ae43209459db424416a3e1d8f2bde.tar.gz
nilfs2: verify btree node after reading
This inserts sanity checks soon after read btree node from disk. This allows early detection of broken btree nodes, and helps to narrow down problems due to file system corruption. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/gcinode.c')
-rw-r--r--fs/nilfs2/gcinode.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c
index 145f03c..edb53fc 100644
--- a/fs/nilfs2/gcinode.c
+++ b/fs/nilfs2/gcinode.c
@@ -164,10 +164,15 @@ int nilfs_gccache_wait_and_mark_dirty(struct buffer_head *bh)
if (buffer_dirty(bh))
return -EEXIST;
- if (buffer_nilfs_node(bh))
+ if (buffer_nilfs_node(bh)) {
+ if (nilfs_btree_broken_node_block(bh)) {
+ clear_buffer_uptodate(bh);
+ return -EIO;
+ }
nilfs_btnode_mark_dirty(bh);
- else
+ } else {
nilfs_mdt_mark_buffer_dirty(bh);
+ }
return 0;
}
OpenPOWER on IntegriCloud