On 3/17/22 1:36 PM, Gao Xiang wrote:
> 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@xxxxxxxxxxxxxxxxx>
>> ---
>> 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()?
Sure, will be renamed in the next version.
--
Thanks,
Jeffle
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