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authorStefan Metzmacher <metze@samba.org>2022-08-11 10:11:15 +0300
committerJens Axboe <axboe@kernel.dk>2022-08-13 02:01:00 +0300
commitf2ccb5aed7bce1d8b3ed5b3385759a5509663028 (patch)
tree32c78d3576a1e594aab4dca3c36efb6ee5dcd93e /io_uring/xattr.c
parentaddebd9ac9ca0ef8b3764907bf8018e48caffc64 (diff)
downloadlinux-f2ccb5aed7bce1d8b3ed5b3385759a5509663028.tar.xz
io_uring: make io_kiocb_to_cmd() typesafe
We need to make sure (at build time) that struct io_cmd_data is not casted to a structure that's larger. Signed-off-by: Stefan Metzmacher <metze@samba.org> Link: https://lore.kernel.org/r/c024cdf25ae19fc0319d4180e2298bade8ed17b8.1660201408.git.metze@samba.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/xattr.c')
-rw-r--r--io_uring/xattr.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/io_uring/xattr.c b/io_uring/xattr.c
index b179f9acd5ac..84180afd090b 100644
--- a/io_uring/xattr.c
+++ b/io_uring/xattr.c
@@ -24,7 +24,7 @@ struct io_xattr {
void io_xattr_cleanup(struct io_kiocb *req)
{
- struct io_xattr *ix = io_kiocb_to_cmd(req);
+ struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
if (ix->filename)
putname(ix->filename);
@@ -44,7 +44,7 @@ static void io_xattr_finish(struct io_kiocb *req, int ret)
static int __io_getxattr_prep(struct io_kiocb *req,
const struct io_uring_sqe *sqe)
{
- struct io_xattr *ix = io_kiocb_to_cmd(req);
+ struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
const char __user *name;
int ret;
@@ -85,7 +85,7 @@ int io_fgetxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_getxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
- struct io_xattr *ix = io_kiocb_to_cmd(req);
+ struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
const char __user *path;
int ret;
@@ -106,7 +106,7 @@ int io_getxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_fgetxattr(struct io_kiocb *req, unsigned int issue_flags)
{
- struct io_xattr *ix = io_kiocb_to_cmd(req);
+ struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
int ret;
if (issue_flags & IO_URING_F_NONBLOCK)
@@ -122,7 +122,7 @@ int io_fgetxattr(struct io_kiocb *req, unsigned int issue_flags)
int io_getxattr(struct io_kiocb *req, unsigned int issue_flags)
{
- struct io_xattr *ix = io_kiocb_to_cmd(req);
+ struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
unsigned int lookup_flags = LOOKUP_FOLLOW;
struct path path;
int ret;
@@ -151,7 +151,7 @@ retry:
static int __io_setxattr_prep(struct io_kiocb *req,
const struct io_uring_sqe *sqe)
{
- struct io_xattr *ix = io_kiocb_to_cmd(req);
+ struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
const char __user *name;
int ret;
@@ -181,7 +181,7 @@ static int __io_setxattr_prep(struct io_kiocb *req,
int io_setxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
- struct io_xattr *ix = io_kiocb_to_cmd(req);
+ struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
const char __user *path;
int ret;
@@ -208,7 +208,7 @@ int io_fsetxattr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
static int __io_setxattr(struct io_kiocb *req, unsigned int issue_flags,
struct path *path)
{
- struct io_xattr *ix = io_kiocb_to_cmd(req);
+ struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
int ret;
ret = mnt_want_write(path->mnt);
@@ -234,7 +234,7 @@ int io_fsetxattr(struct io_kiocb *req, unsigned int issue_flags)
int io_setxattr(struct io_kiocb *req, unsigned int issue_flags)
{
- struct io_xattr *ix = io_kiocb_to_cmd(req);
+ struct io_xattr *ix = io_kiocb_to_cmd(req, struct io_xattr);
unsigned int lookup_flags = LOOKUP_FOLLOW;
struct path path;
int ret;