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io_uring-6.0-2022-08-13

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Merge tag 'io_uring-6.0-2022-08-13' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:

 - Regression fix for this merge window, fixing a wrong order of
   arguments for io_req_set_res() for passthru (Dylan)

 - Fix for the audit code leaking context memory (Peilin)

 - Ensure that provided buffers are memcg accounted (Pavel)

 - Correctly handle short zero-copy sends (Pavel)

 - Sparse warning fixes for the recvmsg multishot command (Dylan)

 - Error handling fix for passthru (Anuj)

 - Remove randomization of struct kiocb fields, to avoid it growing in
   size if re-arranged in such a fashion that it grows more holes or
   padding (Keith, Linus)

 - Small series improving type safety of the sqe fields (Stefan)

* tag 'io_uring-6.0-2022-08-13' of git://git.kernel.dk/linux-block:
  io_uring: add missing BUILD_BUG_ON() checks for new io_uring_sqe fields
  io_uring: make io_kiocb_to_cmd() typesafe
  fs: don't randomize struct kiocb fields
  io_uring: consistently make use of io_notif_to_data()
  io_uring: fix error handling for io_uring_cmd
  io_uring: fix io_recvmsg_prep_multishot sparse warnings
  io_uring/net: send retry for zerocopy
  io_uring: mem-account pbuf buckets
  audit, io_uring, io-wq: Fix memory leak in io_sq_thread() and io_wqe_worker()
  io_uring: pass correct parameters to io_req_set_res
This commit is contained in:
Linus Torvalds 2022-08-13 13:28:54 -07:00
commit 1da8cf961b
26 changed files with 178 additions and 183 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/linux/audit.h
View File

@ -285,7 +285,6 @@ static inline int audit_signal_info(int sig, struct task_struct *t)
/* These are defined in auditsc.c */
/* Public API */
extern int audit_alloc(struct task_struct *task);
extern int audit_alloc_kernel(struct task_struct *task);
extern void __audit_free(struct task_struct *task);
extern void __audit_uring_entry(u8 op);
extern void __audit_uring_exit(int success, long code);
@ -578,10 +577,6 @@ static inline int audit_alloc(struct task_struct *task)
{
return 0;
}
static inline int audit_alloc_kernel(struct task_struct *task)
{
return 0;
}
static inline void audit_free(struct task_struct *task)
{ }
static inline void audit_uring_entry(u8 op)

5
include/linux/fs.h
View File

@ -340,17 +340,12 @@ enum rw_hint {
struct kiocb {
struct file *ki_filp;
/* The 'ki_filp' pointer is shared in a union for aio */
randomized_struct_fields_start
loff_t ki_pos;
void (*ki_complete)(struct kiocb *iocb, long ret);
void *private;
int ki_flags;
u16 ki_ioprio; /* See linux/ioprio.h */
struct wait_page_queue *ki_waitq; /* for async buffered IO */
randomized_struct_fields_end
};
static inline bool is_sync_kiocb(struct kiocb *kiocb)

9
include/linux/io_uring_types.h
View File

@ -491,7 +491,14 @@ struct io_cmd_data {
__u8 data[56];
};
#define io_kiocb_to_cmd(req) ((void *) &(req)->cmd)
static inline void io_kiocb_cmd_sz_check(size_t cmd_sz)
{
BUILD_BUG_ON(cmd_sz > sizeof(struct io_cmd_data));
}
#define io_kiocb_to_cmd(req, cmd_type) ( \
io_kiocb_cmd_sz_check(sizeof(cmd_type)) , \
((cmd_type *)&(req)->cmd) \
)
#define cmd_to_io_kiocb(ptr) ((struct io_kiocb *) ptr)
struct io_kiocb {

8
io_uring/advise.c
View File

@ -31,7 +31,7 @@ struct io_madvise {
int io_madvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
#if defined(CONFIG_ADVISE_SYSCALLS) && defined(CONFIG_MMU)
struct io_madvise *ma = io_kiocb_to_cmd(req);
struct io_madvise *ma = io_kiocb_to_cmd(req, struct io_madvise);
if (sqe->buf_index || sqe->off || sqe->splice_fd_in)
return -EINVAL;
@ -48,7 +48,7 @@ int io_madvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_madvise(struct io_kiocb *req, unsigned int issue_flags)
{
#if defined(CONFIG_ADVISE_SYSCALLS) && defined(CONFIG_MMU)
struct io_madvise *ma = io_kiocb_to_cmd(req);
struct io_madvise *ma = io_kiocb_to_cmd(req, struct io_madvise);
int ret;
if (issue_flags & IO_URING_F_NONBLOCK)
@ -64,7 +64,7 @@ int io_madvise(struct io_kiocb *req, unsigned int issue_flags)
int io_fadvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_fadvise *fa = io_kiocb_to_cmd(req);
struct io_fadvise *fa = io_kiocb_to_cmd(req, struct io_fadvise);
if (sqe->buf_index || sqe->addr || sqe->splice_fd_in)
return -EINVAL;
@ -77,7 +77,7 @@ int io_fadvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_fadvise(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_fadvise *fa = io_kiocb_to_cmd(req);
struct io_fadvise *fa = io_kiocb_to_cmd(req, struct io_fadvise);
int ret;
if (issue_flags & IO_URING_F_NONBLOCK) {

4
io_uring/cancel.c
View File

@ -107,7 +107,7 @@ int io_try_cancel(struct io_uring_task *tctx, struct io_cancel_data *cd,
int io_async_cancel_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_cancel *cancel = io_kiocb_to_cmd(req);
struct io_cancel *cancel = io_kiocb_to_cmd(req, struct io_cancel);
if (unlikely(req->flags & REQ_F_BUFFER_SELECT))
return -EINVAL;
@ -164,7 +164,7 @@ static int __io_async_cancel(struct io_cancel_data *cd,
int io_async_cancel(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_cancel *cancel = io_kiocb_to_cmd(req);
struct io_cancel *cancel = io_kiocb_to_cmd(req, struct io_cancel);
struct io_cancel_data cd = {
.ctx = req->ctx,
.data = cancel->addr,

4
io_uring/epoll.c
View File

@ -23,7 +23,7 @@ struct io_epoll {
int io_epoll_ctl_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_epoll *epoll = io_kiocb_to_cmd(req);
struct io_epoll *epoll = io_kiocb_to_cmd(req, struct io_epoll);
pr_warn_once("%s: epoll_ctl support in io_uring is deprecated and will "
"be removed in a future Linux kernel version.\n",
@ -49,7 +49,7 @@ int io_epoll_ctl_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_epoll_ctl(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_epoll *ie = io_kiocb_to_cmd(req);
struct io_epoll *ie = io_kiocb_to_cmd(req, struct io_epoll);
int ret;
bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;

28
io_uring/fs.c
View File

@ -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);

3
io_uring/io-wq.c
View File

@ -624,8 +624,6 @@ static int io_wqe_worker(void *data)
snprintf(buf, sizeof(buf), "iou-wrk-%d", wq->task->pid);
set_task_comm(current, buf);
audit_alloc_kernel(current);
while (!test_bit(IO_WQ_BIT_EXIT, &wq->state)) {
long ret;
@ -660,7 +658,6 @@ static int io_wqe_worker(void *data)
if (test_bit(IO_WQ_BIT_EXIT, &wq->state))
io_worker_handle_work(worker);
audit_free(current);
io_worker_exit(worker);
return 0;
}

19
io_uring/io_uring.c
View File

@ -3885,13 +3885,15 @@ out_fput:
static int __init io_uring_init(void)
{
#define __BUILD_BUG_VERIFY_ELEMENT(stype, eoffset, etype, ename) do { \
#define __BUILD_BUG_VERIFY_OFFSET_SIZE(stype, eoffset, esize, ename) do { \
BUILD_BUG_ON(offsetof(stype, ename) != eoffset); \
BUILD_BUG_ON(sizeof(etype) != sizeof_field(stype, ename)); \
BUILD_BUG_ON(sizeof_field(stype, ename) != esize); \
} while (0)
#define BUILD_BUG_SQE_ELEM(eoffset, etype, ename) \
__BUILD_BUG_VERIFY_ELEMENT(struct io_uring_sqe, eoffset, etype, ename)
__BUILD_BUG_VERIFY_OFFSET_SIZE(struct io_uring_sqe, eoffset, sizeof(etype), ename)
#define BUILD_BUG_SQE_ELEM_SIZE(eoffset, esize, ename) \
__BUILD_BUG_VERIFY_OFFSET_SIZE(struct io_uring_sqe, eoffset, esize, ename)
BUILD_BUG_ON(sizeof(struct io_uring_sqe) != 64);
BUILD_BUG_SQE_ELEM(0, __u8, opcode);
BUILD_BUG_SQE_ELEM(1, __u8, flags);
@ -3899,6 +3901,8 @@ static int __init io_uring_init(void)
BUILD_BUG_SQE_ELEM(4, __s32, fd);
BUILD_BUG_SQE_ELEM(8, __u64, off);
BUILD_BUG_SQE_ELEM(8, __u64, addr2);
BUILD_BUG_SQE_ELEM(8, __u32, cmd_op);
BUILD_BUG_SQE_ELEM(12, __u32, __pad1);
BUILD_BUG_SQE_ELEM(16, __u64, addr);
BUILD_BUG_SQE_ELEM(16, __u64, splice_off_in);
BUILD_BUG_SQE_ELEM(24, __u32, len);
@ -3917,13 +3921,22 @@ static int __init io_uring_init(void)
BUILD_BUG_SQE_ELEM(28, __u32, statx_flags);
BUILD_BUG_SQE_ELEM(28, __u32, fadvise_advice);
BUILD_BUG_SQE_ELEM(28, __u32, splice_flags);
BUILD_BUG_SQE_ELEM(28, __u32, rename_flags);
BUILD_BUG_SQE_ELEM(28, __u32, unlink_flags);
BUILD_BUG_SQE_ELEM(28, __u32, hardlink_flags);
BUILD_BUG_SQE_ELEM(28, __u32, xattr_flags);
BUILD_BUG_SQE_ELEM(28, __u32, msg_ring_flags);
BUILD_BUG_SQE_ELEM(32, __u64, user_data);
BUILD_BUG_SQE_ELEM(40, __u16, buf_index);
BUILD_BUG_SQE_ELEM(40, __u16, buf_group);
BUILD_BUG_SQE_ELEM(42, __u16, personality);
BUILD_BUG_SQE_ELEM(44, __s32, splice_fd_in);
BUILD_BUG_SQE_ELEM(44, __u32, file_index);
BUILD_BUG_SQE_ELEM(44, __u16, notification_idx);
BUILD_BUG_SQE_ELEM(46, __u16, addr_len);
BUILD_BUG_SQE_ELEM(48, __u64, addr3);
BUILD_BUG_SQE_ELEM_SIZE(48, 0, cmd);
BUILD_BUG_SQE_ELEM(56, __u64, __pad2);
BUILD_BUG_ON(sizeof(struct io_uring_files_update) !=
sizeof(struct io_uring_rsrc_update));

10
io_uring/kbuf.c
View File

@ -272,7 +272,7 @@ void io_destroy_buffers(struct io_ring_ctx *ctx)
int io_remove_buffers_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_provide_buf *p = io_kiocb_to_cmd(req);
struct io_provide_buf *p = io_kiocb_to_cmd(req, struct io_provide_buf);
u64 tmp;
if (sqe->rw_flags || sqe->addr || sqe->len || sqe->off ||
@ -291,7 +291,7 @@ int io_remove_buffers_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_remove_buffers(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_provide_buf *p = io_kiocb_to_cmd(req);
struct io_provide_buf *p = io_kiocb_to_cmd(req, struct io_provide_buf);
struct io_ring_ctx *ctx = req->ctx;
struct io_buffer_list *bl;
int ret = 0;
@ -319,7 +319,7 @@ int io_remove_buffers(struct io_kiocb *req, unsigned int issue_flags)
int io_provide_buffers_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
unsigned long size, tmp_check;
struct io_provide_buf *p = io_kiocb_to_cmd(req);
struct io_provide_buf *p = io_kiocb_to_cmd(req, struct io_provide_buf);
u64 tmp;
if (sqe->rw_flags || sqe->splice_fd_in)
@ -421,7 +421,7 @@ static int io_add_buffers(struct io_ring_ctx *ctx, struct io_provide_buf *pbuf,
int io_provide_buffers(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_provide_buf *p = io_kiocb_to_cmd(req);
struct io_provide_buf *p = io_kiocb_to_cmd(req, struct io_provide_buf);
struct io_ring_ctx *ctx = req->ctx;
struct io_buffer_list *bl;
int ret = 0;
@ -436,7 +436,7 @@ int io_provide_buffers(struct io_kiocb *req, unsigned int issue_flags)
bl = io_buffer_get_list(ctx, p->bgid);
if (unlikely(!bl)) {
bl = kzalloc(sizeof(*bl), GFP_KERNEL);
bl = kzalloc(sizeof(*bl), GFP_KERNEL_ACCOUNT);
if (!bl) {
ret = -ENOMEM;
goto err;

8
io_uring/msg_ring.c
View File

@ -26,7 +26,7 @@ struct io_msg {
static int io_msg_ring_data(struct io_kiocb *req)
{
struct io_ring_ctx *target_ctx = req->file->private_data;
struct io_msg *msg = io_kiocb_to_cmd(req);
struct io_msg *msg = io_kiocb_to_cmd(req, struct io_msg);
if (msg->src_fd || msg->dst_fd || msg->flags)
return -EINVAL;
@ -76,7 +76,7 @@ static int io_double_lock_ctx(struct io_ring_ctx *ctx,
static int io_msg_send_fd(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_ring_ctx *target_ctx = req->file->private_data;
struct io_msg *msg = io_kiocb_to_cmd(req);
struct io_msg *msg = io_kiocb_to_cmd(req, struct io_msg);
struct io_ring_ctx *ctx = req->ctx;
unsigned long file_ptr;
struct file *src_file;
@ -122,7 +122,7 @@ out_unlock:
int io_msg_ring_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_msg *msg = io_kiocb_to_cmd(req);
struct io_msg *msg = io_kiocb_to_cmd(req, struct io_msg);
if (unlikely(sqe->buf_index || sqe->personality))
return -EINVAL;
@ -141,7 +141,7 @@ int io_msg_ring_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_msg_ring(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_msg *msg = io_kiocb_to_cmd(req);
struct io_msg *msg = io_kiocb_to_cmd(req, struct io_msg);
int ret;
ret = -EBADFD;

66
io_uring/net.c
View File

@ -70,13 +70,14 @@ struct io_sendzc {
unsigned flags;
unsigned addr_len;
void __user *addr;
size_t done_io;
};
#define IO_APOLL_MULTI_POLLED (REQ_F_APOLL_MULTISHOT | REQ_F_POLLED)
int io_shutdown_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_shutdown *shutdown = io_kiocb_to_cmd(req);
struct io_shutdown *shutdown = io_kiocb_to_cmd(req, struct io_shutdown);
if (unlikely(sqe->off || sqe->addr || sqe->rw_flags ||
sqe->buf_index || sqe->splice_fd_in))
@ -88,7 +89,7 @@ int io_shutdown_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_shutdown(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_shutdown *shutdown = io_kiocb_to_cmd(req);
struct io_shutdown *shutdown = io_kiocb_to_cmd(req, struct io_shutdown);
struct socket *sock;
int ret;
@ -173,7 +174,7 @@ static int io_setup_async_msg(struct io_kiocb *req,
static int io_sendmsg_copy_hdr(struct io_kiocb *req,
struct io_async_msghdr *iomsg)
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req);
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
iomsg->msg.msg_name = &iomsg->addr;
iomsg->free_iov = iomsg->fast_iov;
@ -200,7 +201,7 @@ void io_sendmsg_recvmsg_cleanup(struct io_kiocb *req)
int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req);
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
if (unlikely(sqe->file_index || sqe->addr2))
return -EINVAL;
@ -224,7 +225,7 @@ int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req);
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct io_async_msghdr iomsg, *kmsg;
struct socket *sock;
unsigned flags;
@ -283,7 +284,7 @@ int io_sendmsg(struct io_kiocb *req, unsigned int issue_flags)
int io_send(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req);
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct msghdr msg;
struct iovec iov;
struct socket *sock;
@ -357,7 +358,7 @@ static bool io_recvmsg_multishot_overflow(struct io_async_msghdr *iomsg)
static int __io_recvmsg_copy_hdr(struct io_kiocb *req,
struct io_async_msghdr *iomsg)
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req);
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct user_msghdr msg;
int ret;
@ -404,7 +405,7 @@ static int __io_recvmsg_copy_hdr(struct io_kiocb *req,
static int __io_compat_recvmsg_copy_hdr(struct io_kiocb *req,
struct io_async_msghdr *iomsg)
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req);
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct compat_msghdr msg;
struct compat_iovec __user *uiov;
int ret;
@ -482,7 +483,7 @@ int io_recvmsg_prep_async(struct io_kiocb *req)
int io_recvmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req);
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
if (unlikely(sqe->file_index || sqe->addr2))
return -EINVAL;
@ -517,7 +518,7 @@ int io_recvmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
static inline void io_recv_prep_retry(struct io_kiocb *req)
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req);
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
sr->done_io = 0;
sr->len = 0; /* get from the provided buffer */
@ -575,12 +576,12 @@ static int io_recvmsg_prep_multishot(struct io_async_msghdr *kmsg,
if (kmsg->controllen) {
unsigned long control = ubuf + hdr - kmsg->controllen;
kmsg->msg.msg_control_user = (void *) control;
kmsg->msg.msg_control_user = (void __user *) control;
kmsg->msg.msg_controllen = kmsg->controllen;
}
sr->buf = *buf; /* stash for later copy */
*buf = (void *) (ubuf + hdr);
*buf = (void __user *) (ubuf + hdr);
kmsg->payloadlen = *len = *len - hdr;
return 0;
}
@ -646,7 +647,7 @@ static int io_recvmsg_multishot(struct socket *sock, struct io_sr_msg *io,
int io_recvmsg(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req);
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct io_async_msghdr iomsg, *kmsg;
struct socket *sock;
unsigned int cflags;
@ -758,7 +759,7 @@ retry_multishot:
int io_recv(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_sr_msg *sr = io_kiocb_to_cmd(req);
struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
struct msghdr msg;
struct socket *sock;
struct iovec iov;
@ -849,7 +850,7 @@ out_free:
int io_sendzc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_sendzc *zc = io_kiocb_to_cmd(req);
struct io_sendzc *zc = io_kiocb_to_cmd(req, struct io_sendzc);
struct io_ring_ctx *ctx = req->ctx;
if (READ_ONCE(sqe->__pad2[0]) || READ_ONCE(sqe->addr3))
@ -878,6 +879,7 @@ int io_sendzc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
zc->addr = u64_to_user_ptr(READ_ONCE(sqe->addr2));
zc->addr_len = READ_ONCE(sqe->addr_len);
zc->done_io = 0;
#ifdef CONFIG_COMPAT
if (req->ctx->compat)
@ -944,7 +946,7 @@ int io_sendzc(struct io_kiocb *req, unsigned int issue_flags)
{
struct sockaddr_storage address;
struct io_ring_ctx *ctx = req->ctx;
struct io_sendzc *zc = io_kiocb_to_cmd(req);
struct io_sendzc *zc = io_kiocb_to_cmd(req, struct io_sendzc);
struct io_notif_slot *notif_slot;
struct io_kiocb *notif;
struct msghdr msg;
@ -1012,18 +1014,30 @@ int io_sendzc(struct io_kiocb *req, unsigned int issue_flags)
if (unlikely(ret < min_ret)) {
if (ret == -EAGAIN && (issue_flags & IO_URING_F_NONBLOCK))
return -EAGAIN;
return ret == -ERESTARTSYS ? -EINTR : ret;
if (ret > 0 && io_net_retry(sock, msg.msg_flags)) {
zc->len -= ret;
zc->buf += ret;
zc->done_io += ret;
req->flags |= REQ_F_PARTIAL_IO;
return -EAGAIN;
}
if (ret == -ERESTARTSYS)
ret = -EINTR;
} else if (zc->flags & IORING_RECVSEND_NOTIF_FLUSH) {
io_notif_slot_flush_submit(notif_slot, 0);
}
if (zc->flags & IORING_RECVSEND_NOTIF_FLUSH)
io_notif_slot_flush_submit(notif_slot, 0);
if (ret >= 0)
ret += zc->done_io;
else if (zc->done_io)
ret = zc->done_io;
io_req_set_res(req, ret, 0);
return IOU_OK;
}
int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_accept *accept = io_kiocb_to_cmd(req);
struct io_accept *accept = io_kiocb_to_cmd(req, struct io_accept);
unsigned flags;
if (sqe->len || sqe->buf_index)
@ -1057,7 +1071,7 @@ int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_accept(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_ring_ctx *ctx = req->ctx;
struct io_accept *accept = io_kiocb_to_cmd(req);
struct io_accept *accept = io_kiocb_to_cmd(req, struct io_accept);
bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;
unsigned int file_flags = force_nonblock ? O_NONBLOCK : 0;
bool fixed = !!accept->file_slot;
@ -1115,7 +1129,7 @@ retry:
int io_socket_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_socket *sock = io_kiocb_to_cmd(req);
struct io_socket *sock = io_kiocb_to_cmd(req, struct io_socket);
if (sqe->addr || sqe->rw_flags || sqe->buf_index)
return -EINVAL;
@ -1136,7 +1150,7 @@ int io_socket_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_socket(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_socket *sock = io_kiocb_to_cmd(req);
struct io_socket *sock = io_kiocb_to_cmd(req, struct io_socket);
bool fixed = !!sock->file_slot;
struct file *file;
int ret, fd;
@ -1170,14 +1184,14 @@ int io_socket(struct io_kiocb *req, unsigned int issue_flags)
int io_connect_prep_async(struct io_kiocb *req)
{
struct io_async_connect *io = req->async_data;
struct io_connect *conn = io_kiocb_to_cmd(req);
struct io_connect *conn = io_kiocb_to_cmd(req, struct io_connect);
return move_addr_to_kernel(conn->addr, conn->addr_len, &io->address);
}
int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_connect *conn = io_kiocb_to_cmd(req);
struct io_connect *conn = io_kiocb_to_cmd(req, struct io_connect);
if (sqe->len || sqe->buf_index || sqe->rw_flags || sqe->splice_fd_in)
return -EINVAL;
@ -1189,7 +1203,7 @@ int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_connect(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_connect *connect = io_kiocb_to_cmd(req);
struct io_connect *connect = io_kiocb_to_cmd(req, struct io_connect);
struct io_async_connect __io, *io;
unsigned file_flags;
int ret;

4
io_uring/notif.c
View File

@ -100,7 +100,7 @@ __cold int io_notif_unregister(struct io_ring_ctx *ctx)
if (!notif)
continue;
nd = io_kiocb_to_cmd(notif);
nd = io_notif_to_data(notif);
slot->notif = NULL;
if (!refcount_dec_and_test(&nd->uarg.refcnt))
continue;
@ -123,8 +123,6 @@ __cold int io_notif_register(struct io_ring_ctx *ctx,
struct io_uring_notification_register reg;
unsigned i;
BUILD_BUG_ON(sizeof(struct io_notif_data) > 64);
if (ctx->nr_notif_slots)
return -EBUSY;
if (size != sizeof(reg))

2
io_uring/notif.h
View File

@ -46,7 +46,7 @@ struct io_kiocb *io_alloc_notif(struct io_ring_ctx *ctx,
static inline struct io_notif_data *io_notif_to_data(struct io_kiocb *notif)
{
return io_kiocb_to_cmd(notif);
return io_kiocb_to_cmd(notif, struct io_notif_data);
}
static inline struct io_kiocb *io_get_notif(struct io_ring_ctx *ctx,

16
io_uring/openclose.c
View File

@ -33,7 +33,7 @@ struct io_close {
static int __io_openat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_open *open = io_kiocb_to_cmd(req);
struct io_open *open = io_kiocb_to_cmd(req, struct io_open);
const char __user *fname;
int ret;
@ -66,7 +66,7 @@ static int __io_openat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe
int io_openat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_open *open = io_kiocb_to_cmd(req);
struct io_open *open = io_kiocb_to_cmd(req, struct io_open);
u64 mode = READ_ONCE(sqe->len);
u64 flags = READ_ONCE(sqe->open_flags);
@ -76,7 +76,7 @@ int io_openat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_openat2_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_open *open = io_kiocb_to_cmd(req);
struct io_open *open = io_kiocb_to_cmd(req, struct io_open);
struct open_how __user *how;
size_t len;
int ret;
@ -95,7 +95,7 @@ int io_openat2_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_openat2(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_open *open = io_kiocb_to_cmd(req);
struct io_open *open = io_kiocb_to_cmd(req, struct io_open);
struct open_flags op;
struct file *file;
bool resolve_nonblock, nonblock_set;
@ -167,7 +167,7 @@ int io_openat(struct io_kiocb *req, unsigned int issue_flags)
void io_open_cleanup(struct io_kiocb *req)
{
struct io_open *open = io_kiocb_to_cmd(req);
struct io_open *open = io_kiocb_to_cmd(req, struct io_open);
if (open->filename)
putname(open->filename);
@ -187,14 +187,14 @@ int __io_close_fixed(struct io_ring_ctx *ctx, unsigned int issue_flags,
static inline int io_close_fixed(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_close *close = io_kiocb_to_cmd(req);
struct io_close *close = io_kiocb_to_cmd(req, struct io_close);
return __io_close_fixed(req->ctx, issue_flags, close->file_slot - 1);
}
int io_close_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_close *close = io_kiocb_to_cmd(req);
struct io_close *close = io_kiocb_to_cmd(req, struct io_close);
if (sqe->off || sqe->addr || sqe->len || sqe->rw_flags || sqe->buf_index)
return -EINVAL;
@ -212,7 +212,7 @@ int io_close_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_close(struct io_kiocb *req, unsigned int issue_flags)
{
struct files_struct *files = current->files;
struct io_close *close = io_kiocb_to_cmd(req);
struct io_close *close = io_kiocb_to_cmd(req, struct io_close);
struct fdtable *fdt;
struct file *file;
int ret = -EBADF;

16
io_uring/poll.c
View File

@ -85,7 +85,7 @@ static struct io_poll *io_poll_get_double(struct io_kiocb *req)
static struct io_poll *io_poll_get_single(struct io_kiocb *req)
{
if (req->opcode == IORING_OP_POLL_ADD)
return io_kiocb_to_cmd(req);
return io_kiocb_to_cmd(req, struct io_poll);
return &req->apoll->poll;
}
@ -274,7 +274,7 @@ static void io_poll_task_func(struct io_kiocb *req, bool *locked)
return;
if (ret == IOU_POLL_DONE) {
struct io_poll *poll = io_kiocb_to_cmd(req);
struct io_poll *poll = io_kiocb_to_cmd(req, struct io_poll);
req->cqe.res = mangle_poll(req->cqe.res & poll->events);
} else if (ret != IOU_POLL_REMOVE_POLL_USE_RES) {
req->cqe.res = ret;
@ -475,7 +475,7 @@ static void io_poll_queue_proc(struct file *file, struct wait_queue_head *head,
struct poll_table_struct *p)
{
struct io_poll_table *pt = container_of(p, struct io_poll_table, pt);
struct io_poll *poll = io_kiocb_to_cmd(pt->req);
struct io_poll *poll = io_kiocb_to_cmd(pt->req, struct io_poll);
__io_queue_proc(poll, pt, head,
(struct io_poll **) &pt->req->async_data);
@ -821,7 +821,7 @@ static __poll_t io_poll_parse_events(const struct io_uring_sqe *sqe,
int io_poll_remove_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_poll_update *upd = io_kiocb_to_cmd(req);
struct io_poll_update *upd = io_kiocb_to_cmd(req, struct io_poll_update);
u32 flags;
if (sqe->buf_index || sqe->splice_fd_in)
@ -851,7 +851,7 @@ int io_poll_remove_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_poll_add_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_poll *poll = io_kiocb_to_cmd(req);
struct io_poll *poll = io_kiocb_to_cmd(req, struct io_poll);
u32 flags;
if (sqe->buf_index || sqe->off || sqe->addr)
@ -868,7 +868,7 @@ int io_poll_add_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_poll_add(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_poll *poll = io_kiocb_to_cmd(req);
struct io_poll *poll = io_kiocb_to_cmd(req, struct io_poll);
struct io_poll_table ipt;
int ret;
@ -891,7 +891,7 @@ int io_poll_add(struct io_kiocb *req, unsigned int issue_flags)
int io_poll_remove(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_poll_update *poll_update = io_kiocb_to_cmd(req);
struct io_poll_update *poll_update = io_kiocb_to_cmd(req, struct io_poll_update);
struct io_cancel_data cd = { .data = poll_update->old_user_data, };
struct io_ring_ctx *ctx = req->ctx;
struct io_hash_bucket *bucket;
@ -930,7 +930,7 @@ found:
if (poll_update->update_events || poll_update->update_user_data) {
/* only mask one event flags, keep behavior flags */
if (poll_update->update_events) {
struct io_poll *poll = io_kiocb_to_cmd(preq);
struct io_poll *poll = io_kiocb_to_cmd(preq, struct io_poll);
poll->events &= ~0xffff;
poll->events |= poll_update->events & 0xffff;

10
io_uring/rsrc.c
View File

@ -657,7 +657,7 @@ __cold int io_register_rsrc(struct io_ring_ctx *ctx, void __user *arg,
int io_rsrc_update_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_rsrc_update *up = io_kiocb_to_cmd(req);
struct io_rsrc_update *up = io_kiocb_to_cmd(req, struct io_rsrc_update);
if (unlikely(req->flags & (REQ_F_FIXED_FILE | REQ_F_BUFFER_SELECT)))
return -EINVAL;
@ -676,7 +676,7 @@ int io_rsrc_update_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
static int io_files_update_with_index_alloc(struct io_kiocb *req,
unsigned int issue_flags)
{
struct io_rsrc_update *up = io_kiocb_to_cmd(req);
struct io_rsrc_update *up = io_kiocb_to_cmd(req, struct io_rsrc_update);
__s32 __user *fds = u64_to_user_ptr(up->arg);
unsigned int done;
struct file *file;
@ -714,7 +714,7 @@ static int io_files_update_with_index_alloc(struct io_kiocb *req,
static int io_files_update(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_rsrc_update *up = io_kiocb_to_cmd(req);
struct io_rsrc_update *up = io_kiocb_to_cmd(req, struct io_rsrc_update);
struct io_ring_ctx *ctx = req->ctx;
struct io_uring_rsrc_update2 up2;
int ret;
@ -743,7 +743,7 @@ static int io_files_update(struct io_kiocb *req, unsigned int issue_flags)
static int io_notif_update(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_rsrc_update *up = io_kiocb_to_cmd(req);
struct io_rsrc_update *up = io_kiocb_to_cmd(req, struct io_rsrc_update);
struct io_ring_ctx *ctx = req->ctx;
unsigned len = up->nr_args;
unsigned idx_end, idx = up->offset;
@ -778,7 +778,7 @@ out:
int io_rsrc_update(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_rsrc_update *up = io_kiocb_to_cmd(req);
struct io_rsrc_update *up = io_kiocb_to_cmd(req, struct io_rsrc_update);
switch (up->type) {
case IORING_RSRC_UPDATE_FILES:

28
io_uring/rw.c
View File

@ -35,7 +35,7 @@ static inline bool io_file_supports_nowait(struct io_kiocb *req)
int io_prep_rw(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
unsigned ioprio;
int ret;
@ -102,7 +102,7 @@ static inline void io_rw_done(struct kiocb *kiocb, ssize_t ret)
static inline loff_t *io_kiocb_update_pos(struct io_kiocb *req)
{
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
if (rw->kiocb.ki_pos != -1)
return &rw->kiocb.ki_pos;
@ -186,7 +186,7 @@ static void kiocb_end_write(struct io_kiocb *req)
static bool __io_complete_rw_common(struct io_kiocb *req, long res)
{
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
if (rw->kiocb.ki_flags & IOCB_WRITE) {
kiocb_end_write(req);
@ -241,7 +241,7 @@ static int kiocb_done(struct io_kiocb *req, ssize_t ret,
unsigned int issue_flags)
{
struct io_async_rw *io = req->async_data;
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
/* add previously done IO, if any */
if (req_has_async_data(req) && io->bytes_done > 0) {
@ -277,7 +277,7 @@ static int kiocb_done(struct io_kiocb *req, ssize_t ret,
static ssize_t io_compat_import(struct io_kiocb *req, struct iovec *iov,
unsigned int issue_flags)
{
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
struct compat_iovec __user *uiov;
compat_ssize_t clen;
void __user *buf;
@ -305,7 +305,7 @@ static ssize_t io_compat_import(struct io_kiocb *req, struct iovec *iov,
static ssize_t __io_iov_buffer_select(struct io_kiocb *req, struct iovec *iov,
unsigned int issue_flags)
{
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
struct iovec __user *uiov = u64_to_user_ptr(rw->addr);
void __user *buf;
ssize_t len;
@ -328,7 +328,7 @@ static ssize_t __io_iov_buffer_select(struct io_kiocb *req, struct iovec *iov,
static ssize_t io_iov_buffer_select(struct io_kiocb *req, struct iovec *iov,
unsigned int issue_flags)
{
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
if (req->flags & (REQ_F_BUFFER_SELECTED|REQ_F_BUFFER_RING)) {
iov[0].iov_base = u64_to_user_ptr(rw->addr);
@ -350,7 +350,7 @@ static struct iovec *__io_import_iovec(int ddir, struct io_kiocb *req,
struct io_rw_state *s,
unsigned int issue_flags)
{
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
struct iov_iter *iter = &s->iter;
u8 opcode = req->opcode;
struct iovec *iovec;
@ -571,7 +571,7 @@ static int io_async_buf_func(struct wait_queue_entry *wait, unsigned mode,
{
struct wait_page_queue *wpq;
struct io_kiocb *req = wait->private;
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
struct wait_page_key *key = arg;
wpq = container_of(wait, struct wait_page_queue, wait);
@ -601,7 +601,7 @@ static bool io_rw_should_retry(struct io_kiocb *req)
{
struct io_async_rw *io = req->async_data;
struct wait_page_queue *wait = &io->wpq;
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
struct kiocb *kiocb = &rw->kiocb;
/* never retry for NOWAIT, we just complete with -EAGAIN */
@ -649,7 +649,7 @@ static bool need_complete_io(struct io_kiocb *req)
static int io_rw_init_file(struct io_kiocb *req, fmode_t mode)
{
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
struct kiocb *kiocb = &rw->kiocb;
struct io_ring_ctx *ctx = req->ctx;
struct file *file = req->file;
@ -694,7 +694,7 @@ static int io_rw_init_file(struct io_kiocb *req, fmode_t mode)
int io_read(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
struct io_rw_state __s, *s = &__s;
struct iovec *iovec;
struct kiocb *kiocb = &rw->kiocb;
@ -839,7 +839,7 @@ done:
int io_write(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
struct io_rw_state __s, *s = &__s;
struct iovec *iovec;
struct kiocb *kiocb = &rw->kiocb;
@ -994,7 +994,7 @@ int io_do_iopoll(struct io_ring_ctx *ctx, bool force_nonspin)
wq_list_for_each(pos, start, &ctx->iopoll_list) {
struct io_kiocb *req = container_of(pos, struct io_kiocb, comp_list);
struct io_rw *rw = io_kiocb_to_cmd(req);
struct io_rw *rw = io_kiocb_to_cmd(req, struct io_rw);
int ret;
/*

8
io_uring/splice.c
View File

@ -26,7 +26,7 @@ struct io_splice {
static int __io_splice_prep(struct io_kiocb *req,
const struct io_uring_sqe *sqe)
{
struct io_splice *sp = io_kiocb_to_cmd(req);
struct io_splice *sp = io_kiocb_to_cmd(req, struct io_splice);
unsigned int valid_flags = SPLICE_F_FD_IN_FIXED | SPLICE_F_ALL;
sp->len = READ_ONCE(sqe->len);
@ -46,7 +46,7 @@ int io_tee_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_tee(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_splice *sp = io_kiocb_to_cmd(req);
struct io_splice *sp = io_kiocb_to_cmd(req, struct io_splice);
struct file *out = sp->file_out;
unsigned int flags = sp->flags & ~SPLICE_F_FD_IN_FIXED;
struct file *in;
@ -78,7 +78,7 @@ done:
int io_splice_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_splice *sp = io_kiocb_to_cmd(req);
struct io_splice *sp = io_kiocb_to_cmd(req, struct io_splice);
sp->off_in = READ_ONCE(sqe->splice_off_in);
sp->off_out = READ_ONCE(sqe->off);
@ -87,7 +87,7 @@ int io_splice_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_splice(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_splice *sp = io_kiocb_to_cmd(req);
struct io_splice *sp = io_kiocb_to_cmd(req, struct io_splice);
struct file *out = sp->file_out;
unsigned int flags = sp->flags & ~SPLICE_F_FD_IN_FIXED;
loff_t *poff_in, *poff_out;

4
io_uring/sqpoll.c
View File

@ -235,8 +235,6 @@ static int io_sq_thread(void *data)
set_cpus_allowed_ptr(current, cpu_online_mask);
current->flags |= PF_NO_SETAFFINITY;
audit_alloc_kernel(current);
mutex_lock(&sqd->lock);
while (1) {
bool cap_entries, sqt_spin = false;
@ -310,8 +308,6 @@ static int io_sq_thread(void *data)
io_run_task_work();
mutex_unlock(&sqd->lock);
audit_free(current);
complete(&sqd->exited);
do_exit(0);
}

6
io_uring/statx.c
View File

@ -22,7 +22,7 @@ struct io_statx {
int io_statx_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_statx *sx = io_kiocb_to_cmd(req);
struct io_statx *sx = io_kiocb_to_cmd(req, struct io_statx);
const char __user *path;
if (sqe->buf_index || sqe->splice_fd_in)
@ -53,7 +53,7 @@ int io_statx_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_statx(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_statx *sx = io_kiocb_to_cmd(req);
struct io_statx *sx = io_kiocb_to_cmd(req, struct io_statx);
int ret;
if (issue_flags & IO_URING_F_NONBLOCK)
@ -66,7 +66,7 @@ int io_statx(struct io_kiocb *req, unsigned int issue_flags)
void io_statx_cleanup(struct io_kiocb *req)
{
struct io_statx *sx = io_kiocb_to_cmd(req);
struct io_statx *sx = io_kiocb_to_cmd(req, struct io_statx);
if (sx->filename)
putname(sx->filename);

12
io_uring/sync.c
View File

@ -24,7 +24,7 @@ struct io_sync {
int io_sfr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_sync *sync = io_kiocb_to_cmd(req);
struct io_sync *sync = io_kiocb_to_cmd(req, struct io_sync);
if (unlikely(sqe->addr || sqe->buf_index || sqe->splice_fd_in))
return -EINVAL;
@ -37,7 +37,7 @@ int io_sfr_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_sync_file_range(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_sync *sync = io_kiocb_to_cmd(req);
struct io_sync *sync = io_kiocb_to_cmd(req, struct io_sync);
int ret;
/* sync_file_range always requires a blocking context */
@ -51,7 +51,7 @@ int io_sync_file_range(struct io_kiocb *req, unsigned int issue_flags)
int io_fsync_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_sync *sync = io_kiocb_to_cmd(req);
struct io_sync *sync = io_kiocb_to_cmd(req, struct io_sync);
if (unlikely(sqe->addr || sqe->buf_index || sqe->splice_fd_in))
return -EINVAL;
@ -67,7 +67,7 @@ int io_fsync_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_fsync(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_sync *sync = io_kiocb_to_cmd(req);
struct io_sync *sync = io_kiocb_to_cmd(req, struct io_sync);
loff_t end = sync->off + sync->len;
int ret;
@ -83,7 +83,7 @@ int io_fsync(struct io_kiocb *req, unsigned int issue_flags)
int io_fallocate_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_sync *sync = io_kiocb_to_cmd(req);
struct io_sync *sync = io_kiocb_to_cmd(req, struct io_sync);
if (sqe->buf_index || sqe->rw_flags || sqe->splice_fd_in)
return -EINVAL;
@ -96,7 +96,7 @@ int io_fallocate_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_fallocate(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_sync *sync = io_kiocb_to_cmd(req);
struct io_sync *sync = io_kiocb_to_cmd(req, struct io_sync);
int ret;
/* fallocate always requiring blocking context */

26
io_uring/timeout.c
View File

@ -36,7 +36,7 @@ struct io_timeout_rem {
static inline bool io_is_timeout_noseq(struct io_kiocb *req)
{
struct io_timeout *timeout = io_kiocb_to_cmd(req);
struct io_timeout *timeout = io_kiocb_to_cmd(req, struct io_timeout);
return !timeout->off;
}
@ -56,7 +56,7 @@ static bool io_kill_timeout(struct io_kiocb *req, int status)
struct io_timeout_data *io = req->async_data;
if (hrtimer_try_to_cancel(&io->timer) != -1) {
struct io_timeout *timeout = io_kiocb_to_cmd(req);
struct io_timeout *timeout = io_kiocb_to_cmd(req, struct io_timeout);
if (status)
req_set_fail(req);
@ -188,7 +188,7 @@ struct io_kiocb *__io_disarm_linked_timeout(struct io_kiocb *req,
__must_hold(&req->ctx->timeout_lock)
{
struct io_timeout_data *io = link->async_data;
struct io_timeout *timeout = io_kiocb_to_cmd(link);
struct io_timeout *timeout = io_kiocb_to_cmd(link, struct io_timeout);
io_remove_next_linked(req);
timeout->head = NULL;
@ -205,7 +205,7 @@ static enum hrtimer_restart io_timeout_fn(struct hrtimer *timer)
struct io_timeout_data *data = container_of(timer,
struct io_timeout_data, timer);
struct io_kiocb *req = data->req;
struct io_timeout *timeout = io_kiocb_to_cmd(req);
struct io_timeout *timeout = io_kiocb_to_cmd(req, struct io_timeout);
struct io_ring_ctx *ctx = req->ctx;
unsigned long flags;
@ -252,7 +252,7 @@ static struct io_kiocb *io_timeout_extract(struct io_ring_ctx *ctx,
io = req->async_data;
if (hrtimer_try_to_cancel(&io->timer) == -1)
return ERR_PTR(-EALREADY);
timeout = io_kiocb_to_cmd(req);
timeout = io_kiocb_to_cmd(req, struct io_timeout);
list_del_init(&timeout->list);
return req;
}
@ -275,7 +275,7 @@ int io_timeout_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd)
static void io_req_task_link_timeout(struct io_kiocb *req, bool *locked)
{
unsigned issue_flags = *locked ? 0 : IO_URING_F_UNLOCKED;
struct io_timeout *timeout = io_kiocb_to_cmd(req);
struct io_timeout *timeout = io_kiocb_to_cmd(req, struct io_timeout);
struct io_kiocb *prev = timeout->prev;
int ret = -ENOENT;
@ -302,7 +302,7 @@ static enum hrtimer_restart io_link_timeout_fn(struct hrtimer *timer)
struct io_timeout_data *data = container_of(timer,
struct io_timeout_data, timer);
struct io_kiocb *prev, *req = data->req;
struct io_timeout *timeout = io_kiocb_to_cmd(req);
struct io_timeout *timeout = io_kiocb_to_cmd(req, struct io_timeout);
struct io_ring_ctx *ctx = req->ctx;
unsigned long flags;
@ -378,7 +378,7 @@ static int io_timeout_update(struct io_ring_ctx *ctx, __u64 user_data,
{
struct io_cancel_data cd = { .data = user_data, };
struct io_kiocb *req = io_timeout_extract(ctx, &cd);
struct io_timeout *timeout = io_kiocb_to_cmd(req);
struct io_timeout *timeout = io_kiocb_to_cmd(req, struct io_timeout);
struct io_timeout_data *data;
if (IS_ERR(req))
@ -395,7 +395,7 @@ static int io_timeout_update(struct io_ring_ctx *ctx, __u64 user_data,
int io_timeout_remove_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_timeout_rem *tr = io_kiocb_to_cmd(req);
struct io_timeout_rem *tr = io_kiocb_to_cmd(req, struct io_timeout_rem);
if (unlikely(req->flags & (REQ_F_FIXED_FILE | REQ_F_BUFFER_SELECT)))
return -EINVAL;
@ -435,7 +435,7 @@ static inline enum hrtimer_mode io_translate_timeout_mode(unsigned int flags)
*/
int io_timeout_remove(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_timeout_rem *tr = io_kiocb_to_cmd(req);
struct io_timeout_rem *tr = io_kiocb_to_cmd(req, struct io_timeout_rem);
struct io_ring_ctx *ctx = req->ctx;
int ret;
@ -466,7 +466,7 @@ static int __io_timeout_prep(struct io_kiocb *req,
const struct io_uring_sqe *sqe,
bool is_timeout_link)
{
struct io_timeout *timeout = io_kiocb_to_cmd(req);
struct io_timeout *timeout = io_kiocb_to_cmd(req, struct io_timeout);
struct io_timeout_data *data;
unsigned flags;
u32 off = READ_ONCE(sqe->off);
@ -532,7 +532,7 @@ int io_link_timeout_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_timeout(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_timeout *timeout = io_kiocb_to_cmd(req);
struct io_timeout *timeout = io_kiocb_to_cmd(req, struct io_timeout);
struct io_ring_ctx *ctx = req->ctx;
struct io_timeout_data *data = req->async_data;
struct list_head *entry;
@ -583,7 +583,7 @@ add:
void io_queue_linked_timeout(struct io_kiocb *req)
{
struct io_timeout *timeout = io_kiocb_to_cmd(req);
struct io_timeout *timeout = io_kiocb_to_cmd(req, struct io_timeout);
struct io_ring_ctx *ctx = req->ctx;
spin_lock_irq(&ctx->timeout_lock);

17
io_uring/uring_cmd.c
View File

@ -11,7 +11,7 @@
static void io_uring_cmd_work(struct io_kiocb *req, bool *locked)
{
struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req);
struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req, struct io_uring_cmd);
ioucmd->task_work_cb(ioucmd);
}
@ -46,7 +46,7 @@ void io_uring_cmd_done(struct io_uring_cmd *ioucmd, ssize_t ret, ssize_t res2)
if (ret < 0)
req_set_fail(req);
io_req_set_res(req, 0, ret);
io_req_set_res(req, ret, 0);
if (req->ctx->flags & IORING_SETUP_CQE32)
io_req_set_cqe32_extra(req, res2, 0);
__io_req_complete(req, 0);
@ -55,9 +55,12 @@ EXPORT_SYMBOL_GPL(io_uring_cmd_done);
int io_uring_cmd_prep_async(struct io_kiocb *req)
{
struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req);
struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req, struct io_uring_cmd);
size_t cmd_size;
BUILD_BUG_ON(uring_cmd_pdu_size(0) != 16);
BUILD_BUG_ON(uring_cmd_pdu_size(1) != 80);
cmd_size = uring_cmd_pdu_size(req->ctx->flags & IORING_SETUP_SQE128);
memcpy(req->async_data, ioucmd->cmd, cmd_size);
@ -66,7 +69,7 @@ int io_uring_cmd_prep_async(struct io_kiocb *req)
int io_uring_cmd_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req);
struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req, struct io_uring_cmd);
if (sqe->rw_flags || sqe->__pad1)
return -EINVAL;
@ -77,7 +80,7 @@ int io_uring_cmd_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags)
{
struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req);
struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req, struct io_uring_cmd);
struct io_ring_ctx *ctx = req->ctx;
struct file *file = req->file;
int ret;
@ -106,7 +109,9 @@ int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags)
}
if (ret != -EIOCBQUEUED) {
io_uring_cmd_done(ioucmd, ret, 0);
if (ret < 0)
req_set_fail(req);
io_req_set_res(req, ret, 0);
return IOU_OK;
}

18
io_uring/xattr.c
View File

@ -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;

25
kernel/auditsc.c
View File

@ -1073,31 +1073,6 @@ int audit_alloc(struct task_struct *tsk)
return 0;
}
/**
* audit_alloc_kernel - allocate an audit_context for a kernel task
* @tsk: the kernel task
*
* Similar to the audit_alloc() function, but intended for kernel private
* threads. Returns zero on success, negative values on failure.
*/
int audit_alloc_kernel(struct task_struct *tsk)
{
/*
* At the moment we are just going to call into audit_alloc() to
* simplify the code, but there two things to keep in mind with this
* approach:
*
* 1. Filtering internal kernel tasks is a bit laughable in almost all
* cases, but there is at least one case where there is a benefit:
* the '-a task,never' case allows the admin to effectively disable
* task auditing at runtime.
*
* 2. The {set,clear}_task_syscall_work() ops likely have zero effect
* on these internal kernel tasks, but they probably don't hurt either.
*/
return audit_alloc(tsk);
}
static inline void audit_free_context(struct audit_context *context)
{
/* resetting is extra work, but it is likely just noise */