linux-kernel - Re: [PATCH v12 bpf-next 3/5] bpf: lsm: Add two more sleepable hooks

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Message-ID: <Z5yMZEn-BXhJwq5e@google.com>
Date: Fri, 31 Jan 2025 08:40:04 +0000
From: Matt Bobrowski <mattbobrowski@...gle.com>
To: Song Liu <song@...nel.org>
Cc: bpf@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org,
	kernel-team@...a.com, andrii@...nel.org, eddyz87@...il.com,
	ast@...nel.org, daniel@...earbox.net, martin.lau@...ux.dev,
	viro@...iv.linux.org.uk, brauner@...nel.org, jack@...e.cz,
	kpsingh@...nel.org, liamwisehart@...a.com, shankaran@...a.com
Subject: Re: [PATCH v12 bpf-next 3/5] bpf: lsm: Add two more sleepable hooks

On Thu, Jan 30, 2025 at 01:35:47PM -0800, Song Liu wrote:
> Add bpf_lsm_inode_removexattr and bpf_lsm_inode_post_removexattr to list
> sleepable_lsm_hooks. These two hooks are always called from sleepable
> context.

Reviewed-by: Matt Bobrowski <mattbobrowski@...gle.com>

> Signed-off-by: Song Liu <song@...nel.org>
> ---
>  kernel/bpf/bpf_lsm.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/kernel/bpf/bpf_lsm.c b/kernel/bpf/bpf_lsm.c
> index 967492b65185..0a59df1c550a 100644
> --- a/kernel/bpf/bpf_lsm.c
> +++ b/kernel/bpf/bpf_lsm.c
> @@ -316,7 +316,9 @@ BTF_ID(func, bpf_lsm_inode_getxattr)
>  BTF_ID(func, bpf_lsm_inode_mknod)
>  BTF_ID(func, bpf_lsm_inode_need_killpriv)
>  BTF_ID(func, bpf_lsm_inode_post_setxattr)
> +BTF_ID(func, bpf_lsm_inode_post_removexattr)
>  BTF_ID(func, bpf_lsm_inode_readlink)
> +BTF_ID(func, bpf_lsm_inode_removexattr)
>  BTF_ID(func, bpf_lsm_inode_rename)
>  BTF_ID(func, bpf_lsm_inode_rmdir)
>  BTF_ID(func, bpf_lsm_inode_setattr)
> -- 
> 2.43.5
>