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SubjectRe: [Linux-cachefs] [PATCH v5 10/22] erofs: add mode checking helper
On Wed, Mar 16, 2022 at 09:17:11PM +0800, Jeffle Xu wrote:
> Until then erofs is exactly blockdev based filesystem. In other using
> scenarios (e.g. container image), erofs needs to run upon files.
>
> This patch set is going to introduces a new nodev mode, in which erofs
> could be mounted from a bootstrap blob file containing complete erofs
> image.
>
> Add a helper checking which mode erofs works in.
>
> Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
> ---
> fs/erofs/internal.h | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
> index e424293f47a2..f66af9ebda43 100644
> --- a/fs/erofs/internal.h
> +++ b/fs/erofs/internal.h
> @@ -161,6 +161,11 @@ struct erofs_sb_info {
> #define set_opt(opt, option) ((opt)->mount_opt |= EROFS_MOUNT_##option)
> #define test_opt(opt, option) ((opt)->mount_opt & EROFS_MOUNT_##option)
>
> +static inline bool erofs_bdev_mode(struct super_block *sb)

How about renaming it as erofs_is_nodev_mode()?

Thanks,
Gao Xiang

> +{
> + return sb->s_bdev;
> +}
> +
> enum {
> EROFS_ZIP_CACHE_DISABLED,
> EROFS_ZIP_CACHE_READAHEAD,
> --
> 2.27.0
>
> --
> Linux-cachefs mailing list
> Linux-cachefs@redhat.com
> https://listman.redhat.com/mailman/listinfo/linux-cachefs

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