Re: [PATCH] vfs: fix EBUSY on FSCONFIG_CMD_CREATE retry

[Chen Linxuan]

On Mon, Dec 15, 2025 at 7:55 PM Christian Brauner <brauner@xxxxxxxxxx> wrote:
> Uh, I'm not sure we should do this. If this only affects cgroup v1 then
> I say we should simply not care at all. It's a deprecated api and anyone
> using it uses something that is inherently broken and a big portion of
> userspace has already migrated. The current or upcoming systemd release
> has dropped all cgroup v1 support.

I am not quite sure if nfs will be affected by this or not.
It looks like vfs_get_tree -> nfs_get_tree -> nfs_try_get_tree ->
nfs_try_get_tree ->
nfs_request_mount -> nfs_mount -> rpc_call_sync -> rpc_run_task ->
rpc_execute ->
__rpc_execute -> rpc_wait_bit_killable might return -ERESTARTSYS.