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Message-Id: <20231018105033.13669-4-michael.weiss@aisec.fraunhofer.de>
Date: Wed, 18 Oct 2023 12:50:22 +0200
From: Michael Weiß <michael.weiss@...ec.fraunhofer.de>
To: Alexander Mikhalitsyn <alexander@...alicyn.com>,
Christian Brauner <brauner@...nel.org>,
Alexei Starovoitov <ast@...nel.org>,
Paul Moore <paul@...l-moore.com>
Cc: Daniel Borkmann <daniel@...earbox.net>,
Andrii Nakryiko <andrii@...nel.org>,
Martin KaFai Lau <martin.lau@...ux.dev>,
Song Liu <song@...nel.org>, Yonghong Song <yhs@...com>,
John Fastabend <john.fastabend@...il.com>,
KP Singh <kpsingh@...nel.org>,
Stanislav Fomichev <sdf@...gle.com>,
Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
Quentin Monnet <quentin@...valent.com>,
Alexander Viro <viro@...iv.linux.org.uk>,
Miklos Szeredi <miklos@...redi.hu>,
Amir Goldstein <amir73il@...il.com>,
"Serge E. Hallyn" <serge@...lyn.com>, bpf@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
gyroidos@...ec.fraunhofer.de,
Michael Weiß <michael.weiss@...ec.fraunhofer.de>
Subject: [RFC PATCH v2 03/14] device_cgroup: Remove explicit devcgroup_inode hooks
All users (actually just fs/namei) of devcgroup_inode_mknod and
devcgroup_inode_permission are removed. Now drop the API completely.
Signed-off-by: Michael Weiß <michael.weiss@...ec.fraunhofer.de>
---
include/linux/device_cgroup.h | 47 -----------------------------------
1 file changed, 47 deletions(-)
diff --git a/include/linux/device_cgroup.h b/include/linux/device_cgroup.h
index d02f32b7514e..d9a62b0cff87 100644
--- a/include/linux/device_cgroup.h
+++ b/include/linux/device_cgroup.h
@@ -14,54 +14,7 @@
#if defined(CONFIG_CGROUP_DEVICE) || defined(CONFIG_CGROUP_BPF)
int devcgroup_check_permission(short type, u32 major, u32 minor,
short access);
-static inline int devcgroup_inode_permission(struct inode *inode, int mask)
-{
- short type, access = 0;
-
- if (likely(!inode->i_rdev))
- return 0;
-
- if (S_ISBLK(inode->i_mode))
- type = DEVCG_DEV_BLOCK;
- else if (S_ISCHR(inode->i_mode))
- type = DEVCG_DEV_CHAR;
- else
- return 0;
-
- if (mask & MAY_WRITE)
- access |= DEVCG_ACC_WRITE;
- if (mask & MAY_READ)
- access |= DEVCG_ACC_READ;
-
- return devcgroup_check_permission(type, imajor(inode), iminor(inode),
- access);
-}
-
-static inline int devcgroup_inode_mknod(int mode, dev_t dev)
-{
- short type;
-
- if (!S_ISBLK(mode) && !S_ISCHR(mode))
- return 0;
-
- if (S_ISCHR(mode) && dev == WHITEOUT_DEV)
- return 0;
-
- if (S_ISBLK(mode))
- type = DEVCG_DEV_BLOCK;
- else
- type = DEVCG_DEV_CHAR;
-
- return devcgroup_check_permission(type, MAJOR(dev), MINOR(dev),
- DEVCG_ACC_MKNOD);
-}
-
#else
static inline int devcgroup_check_permission(short type, u32 major, u32 minor,
short access)
-{ return 0; }
-static inline int devcgroup_inode_permission(struct inode *inode, int mask)
-{ return 0; }
-static inline int devcgroup_inode_mknod(int mode, dev_t dev)
-{ return 0; }
#endif
--
2.30.2
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