diff options
| author | Stefan Metzmacher <metze@samba.org> | 2022-08-11 09:11:15 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-08-13 01:01:00 +0200 |
| commit | f2ccb5aed7bce1d8b3ed5b3385759a5509663028 (patch) | |
| tree | 32c78d3576a1e594aab4dca3c36efb6ee5dcd93e /io_uring/fs.c | |
| parent | fs: don't randomize struct kiocb fields (diff) | |
| download | linux-f2ccb5aed7bce1d8b3ed5b3385759a5509663028.tar.xz linux-f2ccb5aed7bce1d8b3ed5b3385759a5509663028.zip | |
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/fs.c')
| -rw-r--r-- | io_uring/fs.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/io_uring/fs.c b/io_uring/fs.c index 0de4f549bb7d..7100c293c13a 100644 --- a/io_uring/fs.c +++ b/io_uring/fs.c @@ -49,7 +49,7 @@ struct io_link { int io_renameat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) { - struct io_rename *ren = io_kiocb_to_cmd(req); + struct io_rename *ren = io_kiocb_to_cmd(req, struct io_rename); const char __user *oldf, *newf; if (sqe->buf_index || sqe->splice_fd_in) @@ -79,7 +79,7 @@ int io_renameat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) int io_renameat(struct io_kiocb *req, unsigned int issue_flags) { - struct io_rename *ren = io_kiocb_to_cmd(req); + struct io_rename *ren = io_kiocb_to_cmd(req, struct io_rename); int ret; if (issue_flags & IO_URING_F_NONBLOCK) @@ -95,7 +95,7 @@ int io_renameat(struct io_kiocb *req, unsigned int issue_flags) void io_renameat_cleanup(struct io_kiocb *req) { - struct io_rename *ren = io_kiocb_to_cmd(req); + struct io_rename *ren = io_kiocb_to_cmd(req, struct io_rename); putname(ren->oldpath); putname(ren->newpath); @@ -103,7 +103,7 @@ void io_renameat_cleanup(struct io_kiocb *req) int io_unlinkat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) { - struct io_unlink *un = io_kiocb_to_cmd(req); + struct io_unlink *un = io_kiocb_to_cmd(req, struct io_unlink); const char __user *fname; if (sqe->off || sqe->len || sqe->buf_index || sqe->splice_fd_in) @@ -128,7 +128,7 @@ int io_unlinkat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) int io_unlinkat(struct io_kiocb *req, unsigned int issue_flags) { - struct io_unlink *un = io_kiocb_to_cmd(req); + struct io_unlink *un = io_kiocb_to_cmd(req, struct io_unlink); int ret; if (issue_flags & IO_URING_F_NONBLOCK) @@ -146,14 +146,14 @@ int io_unlinkat(struct io_kiocb *req, unsigned int issue_flags) void io_unlinkat_cleanup(struct io_kiocb *req) { - struct io_unlink *ul = io_kiocb_to_cmd(req); + struct io_unlink *ul = io_kiocb_to_cmd(req, struct io_unlink); putname(ul->filename); } int io_mkdirat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) { - struct io_mkdir *mkd = io_kiocb_to_cmd(req); + struct io_mkdir *mkd = io_kiocb_to_cmd(req, struct io_mkdir); const char __user *fname; if (sqe->off || sqe->rw_flags || sqe->buf_index || sqe->splice_fd_in) @@ -175,7 +175,7 @@ int io_mkdirat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) int io_mkdirat(struct io_kiocb *req, unsigned int issue_flags) { - struct io_mkdir *mkd = io_kiocb_to_cmd(req); + struct io_mkdir *mkd = io_kiocb_to_cmd(req, struct io_mkdir); int ret; if (issue_flags & IO_URING_F_NONBLOCK) @@ -190,14 +190,14 @@ int io_mkdirat(struct io_kiocb *req, unsigned int issue_flags) void io_mkdirat_cleanup(struct io_kiocb *req) { - struct io_mkdir *md = io_kiocb_to_cmd(req); + struct io_mkdir *md = io_kiocb_to_cmd(req, struct io_mkdir); putname(md->filename); } int io_symlinkat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) { - struct io_link *sl = io_kiocb_to_cmd(req); + struct io_link *sl = io_kiocb_to_cmd(req, struct io_link); const char __user *oldpath, *newpath; if (sqe->len || sqe->rw_flags || sqe->buf_index || sqe->splice_fd_in) @@ -225,7 +225,7 @@ int io_symlinkat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) int io_symlinkat(struct io_kiocb *req, unsigned int issue_flags) { - struct io_link *sl = io_kiocb_to_cmd(req); + struct io_link *sl = io_kiocb_to_cmd(req, struct io_link); int ret; if (issue_flags & IO_URING_F_NONBLOCK) @@ -240,7 +240,7 @@ int io_symlinkat(struct io_kiocb *req, unsigned int issue_flags) int io_linkat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) { - struct io_link *lnk = io_kiocb_to_cmd(req); + struct io_link *lnk = io_kiocb_to_cmd(req, struct io_link); const char __user *oldf, *newf; if (sqe->rw_flags || sqe->buf_index || sqe->splice_fd_in) @@ -270,7 +270,7 @@ int io_linkat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) int io_linkat(struct io_kiocb *req, unsigned int issue_flags) { - struct io_link *lnk = io_kiocb_to_cmd(req); + struct io_link *lnk = io_kiocb_to_cmd(req, struct io_link); int ret; if (issue_flags & IO_URING_F_NONBLOCK) @@ -286,7 +286,7 @@ int io_linkat(struct io_kiocb *req, unsigned int issue_flags) void io_link_cleanup(struct io_kiocb *req) { - struct io_link *sl = io_kiocb_to_cmd(req); + struct io_link *sl = io_kiocb_to_cmd(req, struct io_link); putname(sl->oldpath); putname(sl->newpath); |