Re: [PATCH 0/4] smb/server: various clean-ups

From: NeilBrown
Date: Wed Jul 16 2025 - 01:22:35 EST



Hi,
did anyone have a chance to look at these - no replies and they don't
appear in linux-next ??

Thanks,
NeilBrown


On Mon, 09 Jun 2025, NeilBrown wrote:
> I am working towards making some changes to how locking is managed for
> directory operations. Prior to attempting to land these changes I am
> reviewing code that requests directory operations and cleaning up things
> that might cause me problems later.
>
> These 4 patches are the result of my review of smb/server. Note that
> patch 3 fixes what appears to be a real deadlock that should be trivial
> to hit if the client can actually set the flag which, as mentioned in
> the patch, can trigger the deadlock.
>
> Patch 1 is trivial but the others deserve careful review by someone who
> knows the code. I think they are correct, but I've been wrong before.
>
> Thanks,
> NeilBrown
>
> [PATCH 1/4] smb/server: use lookup_one_unlocked()
> [PATCH 2/4] smb/server: simplify ksmbd_vfs_kern_path_locked()
> [PATCH 3/4] smb/server: avoid deadlock when linking with
> [PATCH 4/4] smb/server: add ksmbd_vfs_kern_path()
>
>