From: "Sungjong Seo" <sj1557.seo@samsung.com>
To: "'Tetsuhiro Kohada'" <kohada.t2@gmail.com>
Cc: <kohada.tetsuhiro@dc.mitsubishielectric.co.jp>,
<mori.takahiro@ab.mitsubishielectric.co.jp>,
<motai.hirotaka@aj.mitsubishielectric.co.jp>,
"'Namjae Jeon'" <namjae.jeon@samsung.com>,
<linux-fsdevel@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH 1/4] exfat: redefine PBR as boot_sector
Date: Thu, 28 May 2020 14:31:19 +0900 [thread overview]
Message-ID: <040701d634b1$375a2a40$a60e7ec0$@samsung.com> (raw)
In-Reply-To: <20200525115052.19243-1-kohada.t2@gmail.com>
> Aggregate PBR related definitions and redefine as "boot_sector" to comply
> with the exFAT specification.
> And, rename variable names including 'pbr'.
>
> Signed-off-by: Tetsuhiro Kohada <kohada.t2@gmail.com>
> ---
> fs/exfat/exfat_fs.h | 2 +-
> fs/exfat/exfat_raw.h | 79 +++++++++++++++--------------------------
> fs/exfat/super.c | 84 ++++++++++++++++++++++----------------------
> 3 files changed, 72 insertions(+), 93 deletions(-)
>
[snip]
> +/* EXFAT: Main and Backup Boot Sector (512 bytes) */ struct boot_sector
> +{
> + __u8 jmp_boot[BOOTSEC_JUMP_BOOT_LEN];
> + __u8 oem_name[BOOTSEC_OEM_NAME_LEN];
According to the exFAT specification, fs_name and BOOTSEC_FS_NAME_LEN look
better.
> + __u8 must_be_zero[BOOTSEC_OLDBPB_LEN];
> + __le64 partition_offset;
> + __le64 vol_length;
> + __le32 fat_offset;
> + __le32 fat_length;
> + __le32 clu_offset;
> + __le32 clu_count;
> + __le32 root_cluster;
> + __le32 vol_serial;
> + __u8 fs_revision[2];
> + __le16 vol_flags;
> + __u8 sect_size_bits;
> + __u8 sect_per_clus_bits;
> + __u8 num_fats;
> + __u8 drv_sel;
> + __u8 percent_in_use;
> + __u8 reserved[7];
> + __u8 boot_code[390];
> + __le16 signature;
> } __packed;
next prev parent reply other threads:[~2020-05-28 5:31 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20200525115110epcas1p491bfb477b12825536e81e376f34c7a02@epcas1p4.samsung.com>
2020-05-25 11:50 ` [PATCH 1/4] exfat: redefine PBR as boot_sector Tetsuhiro Kohada
2020-05-25 11:50 ` [PATCH 2/4] exfat: separate the boot sector analysis Tetsuhiro Kohada
2020-05-25 11:50 ` [PATCH 3/4] exfat: add boot region verification Tetsuhiro Kohada
2020-05-26 7:23 ` Namjae Jeon
2020-05-29 16:51 ` kbuild test robot
2020-05-25 11:50 ` [PATCH 4/4] exfat: standardize checksum calculation Tetsuhiro Kohada
2020-05-26 7:32 ` Namjae Jeon
2020-05-27 7:39 ` Tetsuhiro Kohada
2020-05-27 11:28 ` Namjae Jeon
2020-05-28 2:00 ` Tetsuhiro Kohada
2020-05-28 5:03 ` Namjae Jeon
2020-05-28 10:09 ` Tetsuhiro Kohada
2020-05-28 11:30 ` Namjae Jeon
2020-05-28 5:31 ` Sungjong Seo [this message]
2020-05-28 12:27 ` [PATCH 1/4] exfat: redefine PBR as boot_sector Tetsuhiro Kohada
2020-05-29 5:28 ` Sungjong Seo
2020-05-29 6:32 ` Tetsuhiro Kohada
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