io_uring: get rid of req->io/io_async_ctx union
There's really no point in having this union, it just means that we're
always allocating enough room to cater to any command. But that's
pointless, as the ->io field is request type private anyway.
This gets rid of the io_async_ctx structure, and fills in the required
size in the io_op_defs[] instead.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/fs/io_uring.c b/fs/io_uring.c
index f3d90a6..268d8c5 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -550,15 +550,6 @@ struct io_async_rw {
struct wait_page_queue wpq;
};
-struct io_async_ctx {
- union {
- struct io_async_rw rw;
- struct io_async_msghdr msg;
- struct io_async_connect connect;
- struct io_timeout_data timeout;
- };
-};
-
enum {
REQ_F_FIXED_FILE_BIT = IOSQE_FIXED_FILE_BIT,
REQ_F_IO_DRAIN_BIT = IOSQE_IO_DRAIN_BIT,
@@ -662,7 +653,8 @@ struct io_kiocb {
struct io_completion compl;
};
- struct io_async_ctx *io;
+ /* opcode allocated if it needs to store data for async defer */
+ void *async_data;
u8 opcode;
/* polled IO has completed */
u8 iopoll_completed;
@@ -730,8 +722,6 @@ struct io_submit_state {
};
struct io_op_def {
- /* needs req->io allocated for deferral/async */
- unsigned async_ctx : 1;
/* needs current->mm setup, does mm access */
unsigned needs_mm : 1;
/* needs req->file assigned */
@@ -753,27 +743,34 @@ struct io_op_def {
unsigned pollout : 1;
/* op supports buffer selection */
unsigned buffer_select : 1;
+ /* needs rlimit(RLIMIT_FSIZE) assigned */
unsigned needs_fsize : 1;
+ /* must always have async data allocated */
+ unsigned needs_async_data : 1;
+ /* size of async data needed, if any */
+ unsigned short async_size;
};
static const struct io_op_def io_op_defs[] __read_mostly = {
[IORING_OP_NOP] = {},
[IORING_OP_READV] = {
- .async_ctx = 1,
.needs_mm = 1,
.needs_file = 1,
.unbound_nonreg_file = 1,
.pollin = 1,
.buffer_select = 1,
+ .needs_async_data = 1,
+ .async_size = sizeof(struct io_async_rw),
},
[IORING_OP_WRITEV] = {
- .async_ctx = 1,
.needs_mm = 1,
.needs_file = 1,
.hash_reg_file = 1,
.unbound_nonreg_file = 1,
.pollout = 1,
.needs_fsize = 1,
+ .needs_async_data = 1,
+ .async_size = sizeof(struct io_async_rw),
},
[IORING_OP_FSYNC] = {
.needs_file = 1,
@@ -782,6 +779,7 @@ static const struct io_op_def io_op_defs[] __read_mostly = {
.needs_file = 1,
.unbound_nonreg_file = 1,
.pollin = 1,
+ .async_size = sizeof(struct io_async_rw),
},
[IORING_OP_WRITE_FIXED] = {
.needs_file = 1,
@@ -789,6 +787,7 @@ static const struct io_op_def io_op_defs[] __read_mostly = {
.unbound_nonreg_file = 1,
.pollout = 1,
.needs_fsize = 1,
+ .async_size = sizeof(struct io_async_rw),
},
[IORING_OP_POLL_ADD] = {
.needs_file = 1,
@@ -799,25 +798,28 @@ static const struct io_op_def io_op_defs[] __read_mostly = {
.needs_file = 1,
},
[IORING_OP_SENDMSG] = {
- .async_ctx = 1,
.needs_mm = 1,
.needs_file = 1,
.unbound_nonreg_file = 1,
.needs_fs = 1,
.pollout = 1,
+ .needs_async_data = 1,
+ .async_size = sizeof(struct io_async_msghdr),
},
[IORING_OP_RECVMSG] = {
- .async_ctx = 1,
.needs_mm = 1,
.needs_file = 1,
.unbound_nonreg_file = 1,
.needs_fs = 1,
.pollin = 1,
.buffer_select = 1,
+ .needs_async_data = 1,
+ .async_size = sizeof(struct io_async_msghdr),
},
[IORING_OP_TIMEOUT] = {
- .async_ctx = 1,
.needs_mm = 1,
+ .needs_async_data = 1,
+ .async_size = sizeof(struct io_timeout_data),
},
[IORING_OP_TIMEOUT_REMOVE] = {},
[IORING_OP_ACCEPT] = {
@@ -829,15 +831,17 @@ static const struct io_op_def io_op_defs[] __read_mostly = {
},
[IORING_OP_ASYNC_CANCEL] = {},
[IORING_OP_LINK_TIMEOUT] = {
- .async_ctx = 1,
.needs_mm = 1,
+ .needs_async_data = 1,
+ .async_size = sizeof(struct io_timeout_data),
},
[IORING_OP_CONNECT] = {
- .async_ctx = 1,
.needs_mm = 1,
.needs_file = 1,
.unbound_nonreg_file = 1,
.pollout = 1,
+ .needs_async_data = 1,
+ .async_size = sizeof(struct io_async_connect),
},
[IORING_OP_FALLOCATE] = {
.needs_file = 1,
@@ -867,6 +871,7 @@ static const struct io_op_def io_op_defs[] __read_mostly = {
.unbound_nonreg_file = 1,
.pollin = 1,
.buffer_select = 1,
+ .async_size = sizeof(struct io_async_rw),
},
[IORING_OP_WRITE] = {
.needs_mm = 1,
@@ -874,6 +879,7 @@ static const struct io_op_def io_op_defs[] __read_mostly = {
.unbound_nonreg_file = 1,
.pollout = 1,
.needs_fsize = 1,
+ .async_size = sizeof(struct io_async_rw),
},
[IORING_OP_FADVISE] = {
.needs_file = 1,
@@ -1233,9 +1239,10 @@ static void io_queue_async_work(struct io_kiocb *req)
static void io_kill_timeout(struct io_kiocb *req)
{
+ struct io_timeout_data *io = req->async_data;
int ret;
- ret = hrtimer_try_to_cancel(&req->io->timeout.timer);
+ ret = hrtimer_try_to_cancel(&io->timer);
if (ret != -1) {
atomic_set(&req->ctx->cq_timeouts,
atomic_read(&req->ctx->cq_timeouts) + 1);
@@ -1623,8 +1630,8 @@ static bool io_dismantle_req(struct io_kiocb *req)
{
io_clean_op(req);
- if (req->io)
- kfree(req->io);
+ if (req->async_data)
+ kfree(req->async_data);
if (req->file)
io_put_file(req, req->file, (req->flags & REQ_F_FIXED_FILE));
@@ -1683,10 +1690,11 @@ static void __io_free_req(struct io_kiocb *req)
static bool io_link_cancel_timeout(struct io_kiocb *req)
{
+ struct io_timeout_data *io = req->async_data;
struct io_ring_ctx *ctx = req->ctx;
int ret;
- ret = hrtimer_try_to_cancel(&req->io->timeout.timer);
+ ret = hrtimer_try_to_cancel(&io->timer);
if (ret != -1) {
io_cqring_fill_event(req, -ECANCELED);
io_commit_cqring(ctx);
@@ -2368,7 +2376,7 @@ static bool io_resubmit_prep(struct io_kiocb *req, int error)
goto end_req;
}
- if (!req->io) {
+ if (!req->async_data) {
ret = io_import_iovec(rw, req, &iovec, &iter, false);
if (ret < 0)
goto end_req;
@@ -2649,13 +2657,14 @@ static void kiocb_done(struct kiocb *kiocb, ssize_t ret,
struct io_comp_state *cs)
{
struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw.kiocb);
+ struct io_async_rw *io = req->async_data;
/* add previously done IO, if any */
- if (req->io && req->io->rw.bytes_done > 0) {
+ if (io && io->bytes_done > 0) {
if (ret < 0)
- ret = req->io->rw.bytes_done;
+ ret = io->bytes_done;
else
- ret += req->io->rw.bytes_done;
+ ret += io->bytes_done;
}
if (req->flags & REQ_F_CUR_POS)
@@ -2929,10 +2938,12 @@ static ssize_t io_import_iovec(int rw, struct io_kiocb *req,
struct iovec **iovec, struct iov_iter *iter,
bool needs_lock)
{
- if (!req->io)
+ struct io_async_rw *iorw = req->async_data;
+
+ if (!iorw)
return __io_import_iovec(rw, req, iovec, iter, needs_lock);
*iovec = NULL;
- return iov_iter_count(&req->io->rw.iter);
+ return iov_iter_count(&iorw->iter);
}
static inline loff_t *io_kiocb_ppos(struct kiocb *kiocb)
@@ -3001,7 +3012,7 @@ static ssize_t loop_rw_iter(int rw, struct file *file, struct kiocb *kiocb,
static void io_req_map_rw(struct io_kiocb *req, const struct iovec *iovec,
const struct iovec *fast_iov, struct iov_iter *iter)
{
- struct io_async_rw *rw = &req->io->rw;
+ struct io_async_rw *rw = req->async_data;
memcpy(&rw->iter, iter, sizeof(*iter));
rw->free_iovec = iovec;
@@ -3025,28 +3036,29 @@ static void io_req_map_rw(struct io_kiocb *req, const struct iovec *iovec,
}
}
-static inline int __io_alloc_async_ctx(struct io_kiocb *req)
+static inline int __io_alloc_async_data(struct io_kiocb *req)
{
- req->io = kmalloc(sizeof(*req->io), GFP_KERNEL);
- return req->io == NULL;
+ WARN_ON_ONCE(!io_op_defs[req->opcode].async_size);
+ req->async_data = kmalloc(io_op_defs[req->opcode].async_size, GFP_KERNEL);
+ return req->async_data == NULL;
}
-static int io_alloc_async_ctx(struct io_kiocb *req)
+static int io_alloc_async_data(struct io_kiocb *req)
{
- if (!io_op_defs[req->opcode].async_ctx)
+ if (!io_op_defs[req->opcode].needs_async_data)
return 0;
- return __io_alloc_async_ctx(req);
+ return __io_alloc_async_data(req);
}
static int io_setup_async_rw(struct io_kiocb *req, const struct iovec *iovec,
const struct iovec *fast_iov,
struct iov_iter *iter, bool force)
{
- if (!force && !io_op_defs[req->opcode].async_ctx)
+ if (!force && !io_op_defs[req->opcode].needs_async_data)
return 0;
- if (!req->io) {
- if (__io_alloc_async_ctx(req))
+ if (!req->async_data) {
+ if (__io_alloc_async_data(req))
return -ENOMEM;
io_req_map_rw(req, iovec, fast_iov, iter);
@@ -3057,7 +3069,7 @@ static int io_setup_async_rw(struct io_kiocb *req, const struct iovec *iovec,
static inline int io_rw_prep_async(struct io_kiocb *req, int rw,
bool force_nonblock)
{
- struct io_async_rw *iorw = &req->io->rw;
+ struct io_async_rw *iorw = req->async_data;
struct iovec *iov = iorw->fast_iov;
ssize_t ret;
@@ -3085,7 +3097,7 @@ static int io_read_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe,
return -EBADF;
/* either don't need iovec imported or already have it */
- if (!req->io || req->flags & REQ_F_NEED_CLEANUP)
+ if (!req->async_data || req->flags & REQ_F_NEED_CLEANUP)
return 0;
return io_rw_prep_async(req, READ, force_nonblock);
}
@@ -3148,7 +3160,8 @@ static int io_async_buf_func(struct wait_queue_entry *wait, unsigned mode,
*/
static bool io_rw_should_retry(struct io_kiocb *req)
{
- struct wait_page_queue *wait = &req->io->rw.wpq;
+ struct io_async_rw *rw = req->async_data;
+ struct wait_page_queue *wait = &rw->wpq;
struct kiocb *kiocb = &req->rw.kiocb;
/* never retry for NOWAIT, we just complete with -EAGAIN */
@@ -3192,12 +3205,13 @@ static int io_read(struct io_kiocb *req, bool force_nonblock,
struct iovec inline_vecs[UIO_FASTIOV], *iovec = inline_vecs;
struct kiocb *kiocb = &req->rw.kiocb;
struct iov_iter __iter, *iter = &__iter;
+ struct io_async_rw *rw = req->async_data;
ssize_t io_size, ret, ret2;
size_t iov_count;
bool no_async;
- if (req->io)
- iter = &req->io->rw.iter;
+ if (rw)
+ iter = &rw->iter;
ret = io_import_iovec(READ, req, &iovec, iter, !force_nonblock);
if (ret < 0)
@@ -3257,12 +3271,13 @@ static int io_read(struct io_kiocb *req, bool force_nonblock,
}
if (no_async)
return -EAGAIN;
+ rw = req->async_data;
/* it's copied and will be cleaned with ->io */
iovec = NULL;
/* now use our persistent iterator, if we aren't already */
- iter = &req->io->rw.iter;
+ iter = &rw->iter;
retry:
- req->io->rw.bytes_done += ret;
+ rw->bytes_done += ret;
/* if we can retry, do so with the callbacks armed */
if (!io_rw_should_retry(req)) {
kiocb->ki_flags &= ~IOCB_WAITQ;
@@ -3306,7 +3321,7 @@ static int io_write_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe,
return -EBADF;
/* either don't need iovec imported or already have it */
- if (!req->io || req->flags & REQ_F_NEED_CLEANUP)
+ if (!req->async_data || req->flags & REQ_F_NEED_CLEANUP)
return 0;
return io_rw_prep_async(req, WRITE, force_nonblock);
}
@@ -3317,11 +3332,12 @@ static int io_write(struct io_kiocb *req, bool force_nonblock,
struct iovec inline_vecs[UIO_FASTIOV], *iovec = inline_vecs;
struct kiocb *kiocb = &req->rw.kiocb;
struct iov_iter __iter, *iter = &__iter;
+ struct io_async_rw *rw = req->async_data;
size_t iov_count;
ssize_t ret, ret2, io_size;
- if (req->io)
- iter = &req->io->rw.iter;
+ if (rw)
+ iter = &rw->iter;
ret = io_import_iovec(WRITE, req, &iovec, iter, !force_nonblock);
if (ret < 0)
@@ -4098,15 +4114,18 @@ static int io_sync_file_range(struct io_kiocb *req, bool force_nonblock)
static int io_setup_async_msg(struct io_kiocb *req,
struct io_async_msghdr *kmsg)
{
- if (req->io)
+ struct io_async_msghdr *async_msg = req->async_data;
+
+ if (async_msg)
return -EAGAIN;
- if (io_alloc_async_ctx(req)) {
+ if (io_alloc_async_data(req)) {
if (kmsg->iov != kmsg->fast_iov)
kfree(kmsg->iov);
return -ENOMEM;
}
+ async_msg = req->async_data;
req->flags |= REQ_F_NEED_CLEANUP;
- memcpy(&req->io->msg, kmsg, sizeof(*kmsg));
+ memcpy(async_msg, kmsg, sizeof(*kmsg));
return -EAGAIN;
}
@@ -4121,8 +4140,8 @@ static int io_sendmsg_copy_hdr(struct io_kiocb *req,
static int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
+ struct io_async_msghdr *async_msg = req->async_data;
struct io_sr_msg *sr = &req->sr_msg;
- struct io_async_ctx *io = req->io;
int ret;
if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
@@ -4137,13 +4156,13 @@ static int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
sr->msg_flags |= MSG_CMSG_COMPAT;
#endif
- if (!io || req->opcode == IORING_OP_SEND)
+ if (!async_msg || !io_op_defs[req->opcode].needs_async_data)
return 0;
/* iovec is already imported */
if (req->flags & REQ_F_NEED_CLEANUP)
return 0;
- ret = io_sendmsg_copy_hdr(req, &io->msg);
+ ret = io_sendmsg_copy_hdr(req, async_msg);
if (!ret)
req->flags |= REQ_F_NEED_CLEANUP;
return ret;
@@ -4161,9 +4180,9 @@ static int io_sendmsg(struct io_kiocb *req, bool force_nonblock,
if (unlikely(!sock))
return ret;
- if (req->io) {
- kmsg = &req->io->msg;
- kmsg->msg.msg_name = &req->io->msg.addr;
+ if (req->async_data) {
+ kmsg = req->async_data;
+ kmsg->msg.msg_name = &kmsg->addr;
/* if iov is set, it's allocated already */
if (!kmsg->iov)
kmsg->iov = kmsg->fast_iov;
@@ -4350,8 +4369,8 @@ static inline unsigned int io_put_recv_kbuf(struct io_kiocb *req)
static int io_recvmsg_prep(struct io_kiocb *req,
const struct io_uring_sqe *sqe)
{
+ struct io_async_msghdr *async_msg = req->async_data;
struct io_sr_msg *sr = &req->sr_msg;
- struct io_async_ctx *io = req->io;
int ret;
if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
@@ -4367,13 +4386,13 @@ static int io_recvmsg_prep(struct io_kiocb *req,
sr->msg_flags |= MSG_CMSG_COMPAT;
#endif
- if (!io || req->opcode == IORING_OP_RECV)
+ if (!async_msg || !io_op_defs[req->opcode].needs_async_data)
return 0;
/* iovec is already imported */
if (req->flags & REQ_F_NEED_CLEANUP)
return 0;
- ret = io_recvmsg_copy_hdr(req, &io->msg);
+ ret = io_recvmsg_copy_hdr(req, async_msg);
if (!ret)
req->flags |= REQ_F_NEED_CLEANUP;
return ret;
@@ -4392,9 +4411,9 @@ static int io_recvmsg(struct io_kiocb *req, bool force_nonblock,
if (unlikely(!sock))
return ret;
- if (req->io) {
- kmsg = &req->io->msg;
- kmsg->msg.msg_name = &req->io->msg.addr;
+ if (req->async_data) {
+ kmsg = req->async_data;
+ kmsg->msg.msg_name = &kmsg->addr;
/* if iov is set, it's allocated already */
if (!kmsg->iov)
kmsg->iov = kmsg->fast_iov;
@@ -4536,7 +4555,7 @@ static int io_accept(struct io_kiocb *req, bool force_nonblock,
static int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
struct io_connect *conn = &req->connect;
- struct io_async_ctx *io = req->io;
+ struct io_async_connect *io = req->async_data;
if (unlikely(req->ctx->flags & (IORING_SETUP_IOPOLL|IORING_SETUP_SQPOLL)))
return -EINVAL;
@@ -4550,22 +4569,22 @@ static int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
return 0;
return move_addr_to_kernel(conn->addr, conn->addr_len,
- &io->connect.address);
+ &io->address);
}
static int io_connect(struct io_kiocb *req, bool force_nonblock,
struct io_comp_state *cs)
{
- struct io_async_ctx __io, *io;
+ struct io_async_connect __io, *io;
unsigned file_flags;
int ret;
- if (req->io) {
- io = req->io;
+ if (req->async_data) {
+ io = req->async_data;
} else {
ret = move_addr_to_kernel(req->connect.addr,
req->connect.addr_len,
- &__io.connect.address);
+ &__io.address);
if (ret)
goto out;
io = &__io;
@@ -4573,16 +4592,17 @@ static int io_connect(struct io_kiocb *req, bool force_nonblock,
file_flags = force_nonblock ? O_NONBLOCK : 0;
- ret = __sys_connect_file(req->file, &io->connect.address,
+ ret = __sys_connect_file(req->file, &io->address,
req->connect.addr_len, file_flags);
if ((ret == -EAGAIN || ret == -EINPROGRESS) && force_nonblock) {
- if (req->io)
+ if (req->async_data)
return -EAGAIN;
- if (io_alloc_async_ctx(req)) {
+ if (io_alloc_async_data(req)) {
ret = -ENOMEM;
goto out;
}
- memcpy(&req->io->connect, &__io.connect, sizeof(__io.connect));
+ io = req->async_data;
+ memcpy(req->async_data, &__io, sizeof(__io));
return -EAGAIN;
}
if (ret == -ERESTARTSYS)
@@ -4724,9 +4744,9 @@ static bool io_poll_rewait(struct io_kiocb *req, struct io_poll_iocb *poll)
static struct io_poll_iocb *io_poll_get_double(struct io_kiocb *req)
{
- /* pure poll stashes this in ->io, poll driven retry elsewhere */
+ /* pure poll stashes this in ->async_data, poll driven retry elsewhere */
if (req->opcode == IORING_OP_POLL_ADD)
- return (struct io_poll_iocb *) req->io;
+ return req->async_data;
return req->apoll->double_poll;
}
@@ -5169,7 +5189,7 @@ static void io_poll_queue_proc(struct file *file, struct wait_queue_head *head,
{
struct io_poll_table *pt = container_of(p, struct io_poll_table, pt);
- __io_queue_proc(&pt->req->poll, pt, head, (struct io_poll_iocb **) &pt->req->io);
+ __io_queue_proc(&pt->req->poll, pt, head, (struct io_poll_iocb **) &pt->req->async_data);
}
static int io_poll_add_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
@@ -5250,11 +5270,12 @@ static enum hrtimer_restart io_timeout_fn(struct hrtimer *timer)
static int __io_timeout_cancel(struct io_kiocb *req)
{
+ struct io_timeout_data *io = req->async_data;
int ret;
list_del_init(&req->timeout.list);
- ret = hrtimer_try_to_cancel(&req->io->timeout.timer);
+ ret = hrtimer_try_to_cancel(&io->timer);
if (ret == -1)
return -EALREADY;
@@ -5341,10 +5362,10 @@ static int io_timeout_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe,
req->timeout.off = off;
- if (!req->io && io_alloc_async_ctx(req))
+ if (!req->async_data && io_alloc_async_data(req))
return -ENOMEM;
- data = &req->io->timeout;
+ data = req->async_data;
data->req = req;
if (get_timespec64(&data->ts, u64_to_user_ptr(sqe->addr)))
@@ -5362,7 +5383,7 @@ static int io_timeout_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe,
static int io_timeout(struct io_kiocb *req)
{
struct io_ring_ctx *ctx = req->ctx;
- struct io_timeout_data *data = &req->io->timeout;
+ struct io_timeout_data *data = req->async_data;
struct list_head *entry;
u32 tail, off = req->timeout.off;
@@ -5533,7 +5554,7 @@ static int io_req_defer_prep(struct io_kiocb *req,
if (!sqe)
return 0;
- if (io_alloc_async_ctx(req))
+ if (io_alloc_async_data(req))
return -EAGAIN;
ret = io_prep_work_files(req);
if (unlikely(ret))
@@ -5672,7 +5693,7 @@ static int io_req_defer(struct io_kiocb *req, const struct io_uring_sqe *sqe)
if (!req_need_defer(req, seq) && list_empty_careful(&ctx->defer_list))
return 0;
- if (!req->io) {
+ if (!req->async_data) {
ret = io_req_defer_prep(req, sqe);
if (ret)
return ret;
@@ -5716,8 +5737,6 @@ static void io_req_drop_files(struct io_kiocb *req)
static void __io_clean_op(struct io_kiocb *req)
{
- struct io_async_ctx *io = req->io;
-
if (req->flags & REQ_F_BUFFER_SELECTED) {
switch (req->opcode) {
case IORING_OP_READV:
@@ -5740,15 +5759,19 @@ static void __io_clean_op(struct io_kiocb *req)
case IORING_OP_READ:
case IORING_OP_WRITEV:
case IORING_OP_WRITE_FIXED:
- case IORING_OP_WRITE:
- if (io->rw.free_iovec)
- kfree(io->rw.free_iovec);
+ case IORING_OP_WRITE: {
+ struct io_async_rw *io = req->async_data;
+ if (io->free_iovec)
+ kfree(io->free_iovec);
break;
+ }
case IORING_OP_RECVMSG:
- case IORING_OP_SENDMSG:
- if (io->msg.iov != io->msg.fast_iov)
- kfree(io->msg.iov);
+ case IORING_OP_SENDMSG: {
+ struct io_async_msghdr *io = req->async_data;
+ if (io->iov != io->fast_iov)
+ kfree(io->iov);
break;
+ }
case IORING_OP_SPLICE:
case IORING_OP_TEE:
io_put_file(req, req->splice.file_in,
@@ -6180,7 +6203,7 @@ static void __io_queue_linked_timeout(struct io_kiocb *req)
* we got a chance to setup the timer
*/
if (!list_empty(&req->link_list)) {
- struct io_timeout_data *data = &req->io->timeout;
+ struct io_timeout_data *data = req->async_data;
data->timer.function = io_link_timeout_fn;
hrtimer_start(&data->timer, timespec64_to_ktime(data->ts),
@@ -6304,7 +6327,7 @@ static void io_queue_sqe(struct io_kiocb *req, const struct io_uring_sqe *sqe,
io_req_complete(req, ret);
}
} else if (req->flags & REQ_F_FORCE_ASYNC) {
- if (!req->io) {
+ if (!req->async_data) {
ret = io_req_defer_prep(req, sqe);
if (unlikely(ret))
goto fail_req;
@@ -6509,7 +6532,7 @@ static int io_init_req(struct io_ring_ctx *ctx, struct io_kiocb *req,
req->opcode = READ_ONCE(sqe->opcode);
req->user_data = READ_ONCE(sqe->user_data);
- req->io = NULL;
+ req->async_data = NULL;
req->file = NULL;
req->ctx = ctx;
req->flags = 0;
