Hi,
在 2025/8/18 17:33, Luca Boccassi 写道:
On Thu, 14 Aug 2025 at 01:54, Yu Kuai <yukuai1@xxxxxxxxxxxxxxx> wrote:
在 2025/08/13 11:29, Xiao Ni 写道:
commit 9e59d609763f ("md: call del_gendisk in control path") changes the
async way to sync way of calling del_gendisk. But it breaks mdadm
--assemble command. The assemble command runs like this:
1. create the array
2. stop the array
3. access the sysfs files after stopping
The sync way calls del_gendisk in step 2, so all sysfs files are removed.
Now to avoid breaking mdadm assemble command, this patch adds the parameter
legacy_async_del_gendisk that can be used to choose which way. The default
is async way. In future, we plan to change default to sync way in kernel
7.0. Then users need to upgrade to mdadm 4.5+ which removes step 2.
Fixes: 9e59d609763f ("md: call del_gendisk in control path")
Reported-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
Closes: https://lore.kernel.org/linux-raid/CAMw=ZnQ=ET2St-+hnhsuq34rRPnebqcXqP1QqaHW5Bh4aaaZ4g@xxxxxxxxxxxxxx/T/#t
Suggested-and-reviewed-by: Yu Kuai <yukuai3@xxxxxxxxxx>
Signed-off-by: Xiao Ni <xni@xxxxxxxxxx>
---
v2: minor changes on format and log content
v3: changes in commit message and log content
v4: choose to change to sync way as default first in commit message
drivers/md/md.c | 56 ++++++++++++++++++++++++++++++++++++-------------
1 file changed, 42 insertions(+), 14 deletions(-)
Aplied to md-6.17
Thanks
Hi,
I noticed this bugfix is not in 6.17~rc2 released yesterday, will it
be in rc3? Thanks
Yes. You should see this in linux-next soon, and later in rc3.
Thanks,
Kuai
