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[176.3.78.112]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a01f9a7650sm68298735e9.15.2026.10.01.05.56.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Oct 2026 05:56:22 -0700 (PDT) From: Abd-Alrhman Masalkhi To: song@kernel.org, yukuai@fygo.io, chengzhihao1@huawei.com, magiclinan@didiglobal.com, xiao@kernel.org Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, Abd-Alrhman Masalkhi Subject: [RFC PATCH v2 2/4] md: pass struct mdu_disk_info64 to md_add_new_disk() Date: Thu, 1 Oct 2026 12:56:09 +0000 Message-ID: <20261001125611.943731-3-abd.masalkhi@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261001125611.943731-1-abd.masalkhi@gmail.com> References: <20261001125611.943731-1-abd.masalkhi@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The md control device passes disk information as struct mdu_disk_info64. Make md_add_new_disk() take this structure, so that the control device and the old ADD_NEW_DISK ioctl can share it. The ADD_NEW_DISK ioctl converts its mdu_disk_info_t with the new helper convert_to_disk_info64(), and md_setup_drive() uses a struct mdu_disk_info64 directly. No functional change. Signed-off-by: Abd-Alrhman Masalkhi --- drivers/md/md-autodetect.c | 2 +- drivers/md/md.c | 26 +++++++++++++++++++++----- drivers/md/md.h | 4 ++-- 3 files changed, 24 insertions(+), 8 deletions(-) diff --git a/drivers/md/md-autodetect.c b/drivers/md/md-autodetect.c index 4b80165afd23..9ba061f1a628 100644 --- a/drivers/md/md-autodetect.c +++ b/drivers/md/md-autodetect.c @@ -201,7 +201,7 @@ static void __init md_setup_drive(struct md_setup_args *args) err = md_set_array_info(mddev, &ainfo); for (i = 0; i <= MD_SB_DISKS && devices[i]; i++) { - struct mdu_disk_info_s dinfo = { + struct mdu_disk_info64 dinfo = { .major = MAJOR(devices[i]), .minor = MINOR(devices[i]), }; diff --git a/drivers/md/md.c b/drivers/md/md.c index 154ee5a65cb7..be1634ae1d09 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7486,7 +7486,7 @@ static int get_disk_info(struct mddev *mddev, void __user * arg) return 0; } -int md_add_new_disk(struct mddev *mddev, struct mdu_disk_info_s *info) +int md_add_new_disk(struct mddev *mddev, struct mdu_disk_info64 *info) { struct md_rdev *rdev; dev_t dev = MKDEV(info->major,info->minor); @@ -8305,6 +8305,16 @@ static bool md_ioctl_need_suspend(unsigned int cmd) } } +static void convert_to_disk_info64(struct mdu_disk_info64 *info64, + mdu_disk_info_t *info) +{ + info64->number = info->number; + info64->major = info->major; + info64->minor = info->minor; + info64->raid_disk = info->raid_disk; + info64->state = info->state; +} + static int __md_set_array_info(struct mddev *mddev, void __user *argp) { mdu_array_info_t info; @@ -8452,13 +8462,16 @@ static int md_ioctl(struct block_device *bdev, blk_mode_t mode, */ if (mddev->pers) { mdu_disk_info_t info; + struct mdu_disk_info64 info64 = {0}; if (copy_from_user(&info, argp, sizeof(info))) err = -EFAULT; else if (!(info.state & (1<