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SubjectRe: [PATCH RFC] f2fs: compress: add compress_flag in struct f2fs_comp_option
On 12/10, Chao Yu wrote:
> Add a extra field compress_flag to get/set more compress option from/to
> compressed inode.
>
> Signed-off-by: Chao Yu <yuchao0@huawei.com>
> ---
>
> Daeho, Jaegeuk,
>
> Could you please check whether we could add this new field to struct
> f2fs_comp_option? so we can expand to allow user to query/config more
> options of compressed inode via new ioctl.
>
> It needs to consider before original patches goes to merge window, let
> me know you have other concerns.

Chao, I think it'd hard to add this at time point, unless there's critical
info that we need to set very urgently.

>
> fs/f2fs/file.c | 1 +
> include/uapi/linux/f2fs.h | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> index 16ea10f2bcf5..fbf06311c88d 100644
> --- a/fs/f2fs/file.c
> +++ b/fs/f2fs/file.c
> @@ -3965,6 +3965,7 @@ static int f2fs_ioc_get_compress_option(struct file *filp, unsigned long arg)
>
> option.algorithm = F2FS_I(inode)->i_compress_algorithm;
> option.log_cluster_size = F2FS_I(inode)->i_log_cluster_size;
> + option.compress_flag = F2FS_I(inode)->i_compress_flag;
>
> inode_unlock_shared(inode);
>
> diff --git a/include/uapi/linux/f2fs.h b/include/uapi/linux/f2fs.h
> index 352a822d4370..2b9c4c99ceee 100644
> --- a/include/uapi/linux/f2fs.h
> +++ b/include/uapi/linux/f2fs.h
> @@ -93,6 +93,7 @@ struct f2fs_sectrim_range {
> struct f2fs_comp_option {
> __u8 algorithm;
> __u8 log_cluster_size;
> + __u16 compress_flag;
> };
>
> #endif /* _UAPI_LINUX_F2FS_H */
> --
> 2.29.2

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