The following commit has been merged in the linux branch: commit 05b4358ad564d7a6a51b3717afe771d36711e9c4 Author: Ryusuke Konishi konishi.ryusuke@lab.ntt.co.jp Date: Mon Sep 14 01:20:35 2009 +0900
nilfs2: add zero-fill for new btree node buffers
Adds missing initialization of newly allocated b-tree node buffers. This avoids garbage data to be mixed in b-tree node blocks.
Signed-off-by: Ryusuke Konishi konishi.ryusuke@lab.ntt.co.jp
diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c index 435864c..84c2538 100644 --- a/fs/nilfs2/btnode.c +++ b/fs/nilfs2/btnode.c @@ -87,6 +87,7 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr, brelse(bh); BUG(); } + memset(bh->b_data, 0, 1 << inode->i_blkbits); bh->b_bdev = NILFS_I_NILFS(inode)->ns_bdev; bh->b_blocknr = blocknr; set_buffer_mapped(bh);