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SubjectRe: [PATCH] fs: ntfs: super: added return error value while map failed
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Wrong subject, it's not ntfs.

On 2021/6/29 下午5:53, lijian_8010a29@163.com wrote:
> From: lijian <lijian@yulong.com>

Still, you guys should try to send from your yulong.com mail box, not 163.

>
> When lookup_extent_mapping failed, should return '-ENOENT'.
>
> Signed-off-by: lijian <lijian@yulong.com>

Some maintainer is OK with name like all lower letters, but at least to
my eyes, Li Jian <lijian@yulong.com> is much easier to read.

Thanks,
Qu

> ---
> fs/btrfs/extent_map.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
> index 4a8e02f7b6c7..e9d9f2bfc11d 100644
> --- a/fs/btrfs/extent_map.c
> +++ b/fs/btrfs/extent_map.c
> @@ -305,8 +305,10 @@ int unpin_extent_cache(struct extent_map_tree *tree, u64 start, u64 len,
>
> WARN_ON(!em || em->start != start);
>
> - if (!em)
> + if (!em) {
> + ret = -ENOENT;
> goto out;
> + }
>
> em->generation = gen;
> clear_bit(EXTENT_FLAG_PINNED, &em->flags);
>

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