Re: [PATCH v2 1/3] lib: Add Bcachefs magic

[Su Yue <l@damenly.org>]

On Thu 07 Dec 2023 at 20:40, Petr Vorel <pvorel@suse.cz> wrote:

> Signed-off-by: Petr Vorel <pvorel@suse.cz>
> ---
> New in v2
>
>  include/tst_fs.h  | 3 +++
>  lib/tst_fs_type.c | 2 ++
>  2 files changed, 5 insertions(+)
>
> diff --git a/include/tst_fs.h b/include/tst_fs.h
> index eb9841165..06f5be896 100644
> --- a/include/tst_fs.h
> +++ b/include/tst_fs.h
> @@ -34,6 +34,9 @@
>  #define TST_VFAT_MAGIC     0x4d44 /* AKA MSDOS */
>  #define TST_EXFAT_MAGIC    0x2011BAB0UL
>
> +/* fs/bcachefs/bcachefs_format.h */
> +#define TST_BCACHE_MAGIC		0xca451a4e
> +
>
Not object to the patch. There are three MAGIC values in
bcachefs_format.h: BCACHE_MAGIC, BCHFS_MAGIC, 
BCACHEFS_STATFS_MAGIC.

IIUC, BCACHE_MAGIC is the older one in superblock, BCHFS_MAGIC is 
the
new one. BCACHEFS_STATFS_MAGIC is for statfs.
Kent,
Would you please export needed magic values to 
include/uapi/linux/magic.h?
Since you are the maintainer also I'm confused about variables to 
be named.

--
Su

>  enum tst_fill_access_pattern {
>  	TST_FILL_BLOCKS,
>  	TST_FILL_RANDOM
> diff --git a/lib/tst_fs_type.c b/lib/tst_fs_type.c
> index d9c9c0817..7f0d61a8e 100644
> --- a/lib/tst_fs_type.c
> +++ b/lib/tst_fs_type.c
> @@ -36,6 +36,8 @@ const char *tst_fs_type_name(long f_type)
>  		return "9p";
>  	case TST_RAMFS_MAGIC:
>  		return "ramfs";
> +	case TST_BCACHE_MAGIC:
> +		return "bcachefs";
>  	case TST_BTRFS_MAGIC:
>  		return "btrfs";
>  	case TST_XFS_MAGIC: