Aneesh Kumar K.V wrote:
> Block number '0' should not be used as the fake block number for
> the delayed new buffer. This will result in vfs calling umap_underlying_metadata for
> block number '0'. So use -1 instead.
>
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
>
> ---
> fs/ext4/inode.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
> index 12dcfab..c7c2156 100644
> --- a/fs/ext4/inode.c
> +++ b/fs/ext4/inode.c
> @@ -2318,7 +2318,7 @@ static int ext4_da_get_block_prep(struct inode *inode, sector_t iblock,
> /* not enough space to reserve */
> return ret;
>
> - map_bh(bh_result, inode->i_sb, 0);
> + map_bh(bh_result, inode->i_sb, -1);
> set_buffer_new(bh_result);
> set_buffer_delay(bh_result);
> } else if (ret > 0) {
this seems fine too, thanks.
-Eric
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