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Btrfs: zero unused bytes in inode item

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The otime field is not zeroed, so users will see random otime in an old
filesystem with a new kernel which has otime support in the future.

The reserved bytes are also not zeroed, and we'll have compatibility
issue if we make use of those bytes.

Signed-off-by: Li Zefan <lizefan@huawei.com>
This commit is contained in:
Li Zefan
2012-07-10 00:58:58 -06:00
committed by Chris Mason
parent b4d7c3c945
commit 293f7e0740
2 changed files with 3 additions and 0 deletions
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fs/btrfs/delayed-inode.c
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@@ -62,6 +62,7 @@ static inline void btrfs_init_delayed_node(
INIT_LIST_HEAD(&delayed_node->n_list);
INIT_LIST_HEAD(&delayed_node->p_list);
delayed_node->bytes_reserved = 0;
memset(&delayed_node->inode_item, 0, sizeof(delayed_node->inode_item));
}
static inline int btrfs_is_continuous_delayed_item(