* [PATCHSET 0/3] io_uring minor cleanup
@ 2019-11-25 20:14 Pavel Begunkov
2019-11-25 20:14 ` [PATCH 1/3] io_uring: store timeout's sqe->off in proper place Pavel Begunkov
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: Pavel Begunkov @ 2019-11-25 20:14 UTC (permalink / raw)
To: Jens Axboe, io-uring
A set of a bit bulky but straightward cleanups.
The main part is removing/inlining struct sqe_submit.
Pavel Begunkov (3):
io_uring: store timeout's sqe->off in proper place
io_uring: inline struct sqe_submit
io_uring: cleanup io_import_fixed()
fs/io_uring.c | 188 +++++++++++++++++++++++---------------------------
1 file changed, 87 insertions(+), 101 deletions(-)
--
2.24.0
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH 1/3] io_uring: store timeout's sqe->off in proper place
2019-11-25 20:14 [PATCHSET 0/3] io_uring minor cleanup Pavel Begunkov
@ 2019-11-25 20:14 ` Pavel Begunkov
2019-11-25 20:14 ` [PATCH 2/3] io_uring: inline struct sqe_submit Pavel Begunkov
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Pavel Begunkov @ 2019-11-25 20:14 UTC (permalink / raw)
To: Jens Axboe, io-uring
Timeouts' sequence offset (i.e. sqe->off) is stored in
req->submit.sequence under a false name. Keep it in timeout.data
instead. The unused space for sequence will be reclaimed in the
following patches.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
fs/io_uring.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index e5bff60f61d6..0ce894fd4940 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -307,6 +307,7 @@ struct io_timeout_data {
struct hrtimer timer;
struct timespec64 ts;
enum hrtimer_mode mode;
+ u32 seq_offset;
};
struct io_timeout {
@@ -2472,8 +2473,7 @@ static int io_timeout(struct io_kiocb *req, const struct io_uring_sqe *sqe)
}
req->sequence = ctx->cached_sq_head + count - 1;
- /* reuse it to store the count */
- req->submit.sequence = count;
+ req->timeout.data->seq_offset = count;
/*
* Insertion sort, ensuring the first entry in the list is always
@@ -2484,6 +2484,7 @@ static int io_timeout(struct io_kiocb *req, const struct io_uring_sqe *sqe)
struct io_kiocb *nxt = list_entry(entry, struct io_kiocb, list);
unsigned nxt_sq_head;
long long tmp, tmp_nxt;
+ u32 nxt_offset = nxt->timeout.data->seq_offset;
if (nxt->flags & REQ_F_TIMEOUT_NOSEQ)
continue;
@@ -2493,8 +2494,8 @@ static int io_timeout(struct io_kiocb *req, const struct io_uring_sqe *sqe)
* long to store it.
*/
tmp = (long long)ctx->cached_sq_head + count - 1;
- nxt_sq_head = nxt->sequence - nxt->submit.sequence + 1;
- tmp_nxt = (long long)nxt_sq_head + nxt->submit.sequence - 1;
+ nxt_sq_head = nxt->sequence - nxt_offset + 1;
+ tmp_nxt = (long long)nxt_sq_head + nxt_offset - 1;
/*
* cached_sq_head may overflow, and it will never overflow twice
--
2.24.0
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 2/3] io_uring: inline struct sqe_submit
2019-11-25 20:14 [PATCHSET 0/3] io_uring minor cleanup Pavel Begunkov
2019-11-25 20:14 ` [PATCH 1/3] io_uring: store timeout's sqe->off in proper place Pavel Begunkov
@ 2019-11-25 20:14 ` Pavel Begunkov
2019-11-25 20:14 ` [PATCH 3/3] io_uring: cleanup io_import_fixed() Pavel Begunkov
2019-11-26 4:49 ` [PATCHSET 0/3] io_uring minor cleanup Jens Axboe
3 siblings, 0 replies; 5+ messages in thread
From: Pavel Begunkov @ 2019-11-25 20:14 UTC (permalink / raw)
To: Jens Axboe, io-uring
There is no point left in keeping struct sqe_submit. Inline it
into struct io_kiocb, so any req->submit.field is now just req->field
- moves initialisation of ring_file into io_get_req()
- removes duplicated req->sequence.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
fs/io_uring.c | 169 +++++++++++++++++++++++---------------------------
1 file changed, 78 insertions(+), 91 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 0ce894fd4940..c75431079a74 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -279,16 +279,6 @@ struct io_ring_ctx {
} ____cacheline_aligned_in_smp;
};
-struct sqe_submit {
- const struct io_uring_sqe *sqe;
- struct file *ring_file;
- int ring_fd;
- u32 sequence;
- bool has_user;
- bool in_async;
- bool needs_fixed_file;
-};
-
/*
* First field must be the file pointer in all the
* iocb unions! See also 'struct kiocb' in <linux/fs.h>
@@ -329,7 +319,12 @@ struct io_kiocb {
struct io_timeout timeout;
};
- struct sqe_submit submit;
+ const struct io_uring_sqe *sqe;
+ struct file *ring_file;
+ int ring_fd;
+ bool has_user;
+ bool in_async;
+ bool needs_fixed_file;
struct io_ring_ctx *ctx;
union {
@@ -539,8 +534,8 @@ static inline bool io_prep_async_work(struct io_kiocb *req,
{
bool do_hashed = false;
- if (req->submit.sqe) {
- switch (req->submit.sqe->opcode) {
+ if (req->sqe) {
+ switch (req->sqe->opcode) {
case IORING_OP_WRITEV:
case IORING_OP_WRITE_FIXED:
do_hashed = true;
@@ -561,7 +556,7 @@ static inline bool io_prep_async_work(struct io_kiocb *req,
req->work.flags |= IO_WQ_WORK_UNBOUND;
break;
}
- if (io_sqe_needs_user(req->submit.sqe))
+ if (io_sqe_needs_user(req->sqe))
req->work.flags |= IO_WQ_WORK_NEEDS_USER;
}
@@ -808,6 +803,7 @@ static struct io_kiocb *io_get_req(struct io_ring_ctx *ctx,
}
got_it:
+ req->ring_file = NULL;
req->file = NULL;
req->ctx = ctx;
req->flags = 0;
@@ -838,7 +834,7 @@ static void __io_free_req(struct io_kiocb *req)
struct io_ring_ctx *ctx = req->ctx;
if (req->flags & REQ_F_FREE_SQE)
- kfree(req->submit.sqe);
+ kfree(req->sqe);
if (req->file && !(req->flags & REQ_F_FIXED_FILE))
fput(req->file);
if (req->flags & REQ_F_INFLIGHT) {
@@ -936,7 +932,7 @@ static void io_fail_links(struct io_kiocb *req)
trace_io_uring_fail_link(req, link);
if ((req->flags & REQ_F_LINK_TIMEOUT) &&
- link->submit.sqe->opcode == IORING_OP_LINK_TIMEOUT) {
+ link->sqe->opcode == IORING_OP_LINK_TIMEOUT) {
io_link_cancel_timeout(link);
} else {
io_cqring_fill_event(link, -ECANCELED);
@@ -1399,7 +1395,7 @@ static bool io_file_supports_async(struct file *file)
static int io_prep_rw(struct io_kiocb *req, bool force_nonblock)
{
- const struct io_uring_sqe *sqe = req->submit.sqe;
+ const struct io_uring_sqe *sqe = req->sqe;
struct io_ring_ctx *ctx = req->ctx;
struct kiocb *kiocb = &req->rw;
unsigned ioprio;
@@ -1566,11 +1562,10 @@ static int io_import_fixed(struct io_ring_ctx *ctx, int rw,
return len;
}
-static ssize_t io_import_iovec(struct io_ring_ctx *ctx, int rw,
- const struct sqe_submit *s, struct iovec **iovec,
- struct iov_iter *iter)
+static ssize_t io_import_iovec(int rw, struct io_kiocb *req,
+ struct iovec **iovec, struct iov_iter *iter)
{
- const struct io_uring_sqe *sqe = s->sqe;
+ const struct io_uring_sqe *sqe = req->sqe;
void __user *buf = u64_to_user_ptr(READ_ONCE(sqe->addr));
size_t sqe_len = READ_ONCE(sqe->len);
u8 opcode;
@@ -1586,16 +1581,16 @@ static ssize_t io_import_iovec(struct io_ring_ctx *ctx, int rw,
opcode = READ_ONCE(sqe->opcode);
if (opcode == IORING_OP_READ_FIXED ||
opcode == IORING_OP_WRITE_FIXED) {
- ssize_t ret = io_import_fixed(ctx, rw, sqe, iter);
+ ssize_t ret = io_import_fixed(req->ctx, rw, sqe, iter);
*iovec = NULL;
return ret;
}
- if (!s->has_user)
+ if (!req->has_user)
return -EFAULT;
#ifdef CONFIG_COMPAT
- if (ctx->compat)
+ if (req->ctx->compat)
return compat_import_iovec(rw, buf, sqe_len, UIO_FASTIOV,
iovec, iter);
#endif
@@ -1679,7 +1674,7 @@ static int io_read(struct io_kiocb *req, struct io_kiocb **nxt,
if (unlikely(!(file->f_mode & FMODE_READ)))
return -EBADF;
- ret = io_import_iovec(req->ctx, READ, &req->submit, &iovec, &iter);
+ ret = io_import_iovec(READ, req, &iovec, &iter);
if (ret < 0)
return ret;
@@ -1711,7 +1706,7 @@ static int io_read(struct io_kiocb *req, struct io_kiocb **nxt,
ret2 = -EAGAIN;
/* Catch -EAGAIN return for forced non-blocking submission */
if (!force_nonblock || ret2 != -EAGAIN)
- kiocb_done(kiocb, ret2, nxt, req->submit.in_async);
+ kiocb_done(kiocb, ret2, nxt, req->in_async);
else
ret = -EAGAIN;
}
@@ -1737,7 +1732,7 @@ static int io_write(struct io_kiocb *req, struct io_kiocb **nxt,
if (unlikely(!(file->f_mode & FMODE_WRITE)))
return -EBADF;
- ret = io_import_iovec(req->ctx, WRITE, &req->submit, &iovec, &iter);
+ ret = io_import_iovec(WRITE, req, &iovec, &iter);
if (ret < 0)
return ret;
@@ -1774,7 +1769,7 @@ static int io_write(struct io_kiocb *req, struct io_kiocb **nxt,
else
ret2 = loop_rw_iter(WRITE, file, kiocb, &iter);
if (!force_nonblock || ret2 != -EAGAIN)
- kiocb_done(kiocb, ret2, nxt, req->submit.in_async);
+ kiocb_done(kiocb, ret2, nxt, req->in_async);
else
ret = -EAGAIN;
}
@@ -2258,7 +2253,7 @@ static int io_poll_add(struct io_kiocb *req, const struct io_uring_sqe *sqe,
if (!poll->file)
return -EBADF;
- req->submit.sqe = NULL;
+ req->sqe = NULL;
INIT_IO_WORK(&req->work, io_poll_complete_work);
events = READ_ONCE(sqe->poll_events);
poll->events = demangle_poll(events) | EPOLLERR | EPOLLHUP;
@@ -2412,7 +2407,7 @@ static int io_timeout_remove(struct io_kiocb *req,
static int io_timeout_setup(struct io_kiocb *req)
{
- const struct io_uring_sqe *sqe = req->submit.sqe;
+ const struct io_uring_sqe *sqe = req->sqe;
struct io_timeout_data *data;
unsigned flags;
@@ -2600,7 +2595,6 @@ static int io_async_cancel(struct io_kiocb *req, const struct io_uring_sqe *sqe,
static int io_req_defer(struct io_kiocb *req)
{
- const struct io_uring_sqe *sqe = req->submit.sqe;
struct io_uring_sqe *sqe_copy;
struct io_ring_ctx *ctx = req->ctx;
@@ -2619,9 +2613,9 @@ static int io_req_defer(struct io_kiocb *req)
return 0;
}
- memcpy(sqe_copy, sqe, sizeof(*sqe_copy));
+ memcpy(sqe_copy, req->sqe, sizeof(*sqe_copy));
req->flags |= REQ_F_FREE_SQE;
- req->submit.sqe = sqe_copy;
+ req->sqe = sqe_copy;
trace_io_uring_defer(ctx, req, req->user_data);
list_add_tail(&req->list, &ctx->defer_list);
@@ -2634,21 +2628,20 @@ static int io_issue_sqe(struct io_kiocb *req, struct io_kiocb **nxt,
bool force_nonblock)
{
int ret, opcode;
- struct sqe_submit *s = &req->submit;
struct io_ring_ctx *ctx = req->ctx;
- opcode = READ_ONCE(s->sqe->opcode);
+ opcode = READ_ONCE(req->sqe->opcode);
switch (opcode) {
case IORING_OP_NOP:
ret = io_nop(req);
break;
case IORING_OP_READV:
- if (unlikely(s->sqe->buf_index))
+ if (unlikely(req->sqe->buf_index))
return -EINVAL;
ret = io_read(req, nxt, force_nonblock);
break;
case IORING_OP_WRITEV:
- if (unlikely(s->sqe->buf_index))
+ if (unlikely(req->sqe->buf_index))
return -EINVAL;
ret = io_write(req, nxt, force_nonblock);
break;
@@ -2659,37 +2652,37 @@ static int io_issue_sqe(struct io_kiocb *req, struct io_kiocb **nxt,
ret = io_write(req, nxt, force_nonblock);
break;
case IORING_OP_FSYNC:
- ret = io_fsync(req, s->sqe, nxt, force_nonblock);
+ ret = io_fsync(req, req->sqe, nxt, force_nonblock);
break;
case IORING_OP_POLL_ADD:
- ret = io_poll_add(req, s->sqe, nxt);
+ ret = io_poll_add(req, req->sqe, nxt);
break;
case IORING_OP_POLL_REMOVE:
- ret = io_poll_remove(req, s->sqe);
+ ret = io_poll_remove(req, req->sqe);
break;
case IORING_OP_SYNC_FILE_RANGE:
- ret = io_sync_file_range(req, s->sqe, nxt, force_nonblock);
+ ret = io_sync_file_range(req, req->sqe, nxt, force_nonblock);
break;
case IORING_OP_SENDMSG:
- ret = io_sendmsg(req, s->sqe, nxt, force_nonblock);
+ ret = io_sendmsg(req, req->sqe, nxt, force_nonblock);
break;
case IORING_OP_RECVMSG:
- ret = io_recvmsg(req, s->sqe, nxt, force_nonblock);
+ ret = io_recvmsg(req, req->sqe, nxt, force_nonblock);
break;
case IORING_OP_TIMEOUT:
- ret = io_timeout(req, s->sqe);
+ ret = io_timeout(req, req->sqe);
break;
case IORING_OP_TIMEOUT_REMOVE:
- ret = io_timeout_remove(req, s->sqe);
+ ret = io_timeout_remove(req, req->sqe);
break;
case IORING_OP_ACCEPT:
- ret = io_accept(req, s->sqe, nxt, force_nonblock);
+ ret = io_accept(req, req->sqe, nxt, force_nonblock);
break;
case IORING_OP_CONNECT:
- ret = io_connect(req, s->sqe, nxt, force_nonblock);
+ ret = io_connect(req, req->sqe, nxt, force_nonblock);
break;
case IORING_OP_ASYNC_CANCEL:
- ret = io_async_cancel(req, s->sqe, nxt);
+ ret = io_async_cancel(req, req->sqe, nxt);
break;
default:
ret = -EINVAL;
@@ -2704,10 +2697,10 @@ static int io_issue_sqe(struct io_kiocb *req, struct io_kiocb **nxt,
return -EAGAIN;
/* workqueue context doesn't hold uring_lock, grab it now */
- if (s->in_async)
+ if (req->in_async)
mutex_lock(&ctx->uring_lock);
io_iopoll_req_issued(req);
- if (s->in_async)
+ if (req->in_async)
mutex_unlock(&ctx->uring_lock);
}
@@ -2725,7 +2718,6 @@ static void io_wq_submit_work(struct io_wq_work **workptr)
{
struct io_wq_work *work = *workptr;
struct io_kiocb *req = container_of(work, struct io_kiocb, work);
- struct sqe_submit *s = &req->submit;
struct io_kiocb *nxt = NULL;
int ret = 0;
@@ -2736,8 +2728,8 @@ static void io_wq_submit_work(struct io_wq_work **workptr)
ret = -ECANCELED;
if (!ret) {
- s->has_user = (work->flags & IO_WQ_WORK_HAS_MM) != 0;
- s->in_async = true;
+ req->has_user = (work->flags & IO_WQ_WORK_HAS_MM) != 0;
+ req->in_async = true;
do {
ret = io_issue_sqe(req, &nxt, false);
/*
@@ -2803,24 +2795,17 @@ static inline struct file *io_file_from_index(struct io_ring_ctx *ctx,
static int io_req_set_file(struct io_submit_state *state, struct io_kiocb *req)
{
- struct sqe_submit *s = &req->submit;
struct io_ring_ctx *ctx = req->ctx;
unsigned flags;
int fd;
- flags = READ_ONCE(s->sqe->flags);
- fd = READ_ONCE(s->sqe->fd);
+ flags = READ_ONCE(req->sqe->flags);
+ fd = READ_ONCE(req->sqe->fd);
if (flags & IOSQE_IO_DRAIN)
req->flags |= REQ_F_IO_DRAIN;
- /*
- * All io need record the previous position, if LINK vs DARIN,
- * it can be used to mark the position of the first IO in the
- * link list.
- */
- req->sequence = s->sequence;
- if (!io_op_needs_file(s->sqe))
+ if (!io_op_needs_file(req->sqe))
return 0;
if (flags & IOSQE_FIXED_FILE) {
@@ -2833,7 +2818,7 @@ static int io_req_set_file(struct io_submit_state *state, struct io_kiocb *req)
return -EBADF;
req->flags |= REQ_F_FIXED_FILE;
} else {
- if (s->needs_fixed_file)
+ if (req->needs_fixed_file)
return -EBADF;
trace_io_uring_file_get(ctx, fd);
req->file = io_file_get(state, fd);
@@ -2857,7 +2842,7 @@ static int io_grab_files(struct io_kiocb *req)
* the fd has changed since we started down this path, and disallow
* this operation if it has.
*/
- if (fcheck(req->submit.ring_fd) == req->submit.ring_file) {
+ if (fcheck(req->ring_fd) == req->ring_file) {
list_add(&req->inflight_entry, &ctx->inflight_list);
req->flags |= REQ_F_INFLIGHT;
req->work.files = current->files;
@@ -2938,7 +2923,7 @@ static struct io_kiocb *io_prep_linked_timeout(struct io_kiocb *req)
return NULL;
nxt = list_first_entry_or_null(&req->link_list, struct io_kiocb, list);
- if (!nxt || nxt->submit.sqe->opcode != IORING_OP_LINK_TIMEOUT)
+ if (!nxt || nxt->sqe->opcode != IORING_OP_LINK_TIMEOUT)
return NULL;
req->flags |= REQ_F_LINK_TIMEOUT;
@@ -2961,14 +2946,13 @@ static void __io_queue_sqe(struct io_kiocb *req)
*/
if (ret == -EAGAIN && (!(req->flags & REQ_F_NOWAIT) ||
(req->flags & REQ_F_MUST_PUNT))) {
- struct sqe_submit *s = &req->submit;
struct io_uring_sqe *sqe_copy;
- sqe_copy = kmemdup(s->sqe, sizeof(*sqe_copy), GFP_KERNEL);
+ sqe_copy = kmemdup(req->sqe, sizeof(*sqe_copy), GFP_KERNEL);
if (!sqe_copy)
goto err;
- s->sqe = sqe_copy;
+ req->sqe = sqe_copy;
req->flags |= REQ_F_FREE_SQE;
if (req->work.flags & IO_WQ_WORK_NEEDS_FILES) {
@@ -3042,14 +3026,13 @@ static inline void io_queue_link_head(struct io_kiocb *req)
static void io_submit_sqe(struct io_kiocb *req, struct io_submit_state *state,
struct io_kiocb **link)
{
- struct sqe_submit *s = &req->submit;
struct io_ring_ctx *ctx = req->ctx;
int ret;
- req->user_data = s->sqe->user_data;
+ req->user_data = req->sqe->user_data;
/* enforce forwards compatibility on users */
- if (unlikely(s->sqe->flags & ~SQE_VALID_FLAGS)) {
+ if (unlikely(req->sqe->flags & ~SQE_VALID_FLAGS)) {
ret = -EINVAL;
goto err_req;
}
@@ -3073,13 +3056,13 @@ static void io_submit_sqe(struct io_kiocb *req, struct io_submit_state *state,
struct io_kiocb *prev = *link;
struct io_uring_sqe *sqe_copy;
- if (s->sqe->flags & IOSQE_IO_DRAIN)
+ if (req->sqe->flags & IOSQE_IO_DRAIN)
(*link)->flags |= REQ_F_DRAIN_LINK | REQ_F_IO_DRAIN;
- if (READ_ONCE(s->sqe->opcode) == IORING_OP_LINK_TIMEOUT) {
+ if (READ_ONCE(req->sqe->opcode) == IORING_OP_LINK_TIMEOUT) {
ret = io_timeout_setup(req);
/* common setup allows offset being set, we don't */
- if (!ret && s->sqe->off)
+ if (!ret && req->sqe->off)
ret = -EINVAL;
if (ret) {
prev->flags |= REQ_F_FAIL_LINK;
@@ -3087,17 +3070,17 @@ static void io_submit_sqe(struct io_kiocb *req, struct io_submit_state *state,
}
}
- sqe_copy = kmemdup(s->sqe, sizeof(*sqe_copy), GFP_KERNEL);
+ sqe_copy = kmemdup(req->sqe, sizeof(*sqe_copy), GFP_KERNEL);
if (!sqe_copy) {
ret = -EAGAIN;
goto err_req;
}
- s->sqe = sqe_copy;
+ req->sqe = sqe_copy;
req->flags |= REQ_F_FREE_SQE;
trace_io_uring_link(ctx, req, prev);
list_add_tail(&req->list, &prev->link_list);
- } else if (s->sqe->flags & IOSQE_IO_LINK) {
+ } else if (req->sqe->flags & IOSQE_IO_LINK) {
req->flags |= REQ_F_LINK;
INIT_LIST_HEAD(&req->link_list);
@@ -3153,7 +3136,7 @@ static void io_commit_sqring(struct io_ring_ctx *ctx)
* used, it's important that those reads are done through READ_ONCE() to
* prevent a re-load down the line.
*/
-static bool io_get_sqring(struct io_ring_ctx *ctx, struct sqe_submit *s)
+static bool io_get_sqring(struct io_ring_ctx *ctx, struct io_kiocb *req)
{
struct io_rings *rings = ctx->rings;
u32 *sq_array = ctx->sq_array;
@@ -3174,9 +3157,13 @@ static bool io_get_sqring(struct io_ring_ctx *ctx, struct sqe_submit *s)
head = READ_ONCE(sq_array[head & ctx->sq_mask]);
if (likely(head < ctx->sq_entries)) {
- s->ring_file = NULL;
- s->sqe = &ctx->sq_sqes[head];
- s->sequence = ctx->cached_sq_head;
+ /*
+ * All io need record the previous position, if LINK vs DARIN,
+ * it can be used to mark the position of the first IO in the
+ * link list.
+ */
+ req->sequence = ctx->cached_sq_head;
+ req->sqe = &ctx->sq_sqes[head];
ctx->cached_sq_head++;
return true;
}
@@ -3217,12 +3204,12 @@ static int io_submit_sqes(struct io_ring_ctx *ctx, unsigned int nr,
submitted = -EAGAIN;
break;
}
- if (!io_get_sqring(ctx, &req->submit)) {
+ if (!io_get_sqring(ctx, req)) {
__io_free_req(req);
break;
}
- if (io_sqe_needs_user(req->submit.sqe) && !*mm) {
+ if (io_sqe_needs_user(req->sqe) && !*mm) {
mm_fault = mm_fault || !mmget_not_zero(ctx->sqo_mm);
if (!mm_fault) {
use_mm(ctx->sqo_mm);
@@ -3230,14 +3217,14 @@ static int io_submit_sqes(struct io_ring_ctx *ctx, unsigned int nr,
}
}
- sqe_flags = req->submit.sqe->flags;
+ sqe_flags = req->sqe->flags;
- req->submit.ring_file = ring_file;
- req->submit.ring_fd = ring_fd;
- req->submit.has_user = *mm != NULL;
- req->submit.in_async = async;
- req->submit.needs_fixed_file = async;
- trace_io_uring_submit_sqe(ctx, req->submit.sqe->user_data,
+ req->ring_file = ring_file;
+ req->ring_fd = ring_fd;
+ req->has_user = *mm != NULL;
+ req->in_async = async;
+ req->needs_fixed_file = async;
+ trace_io_uring_submit_sqe(ctx, req->sqe->user_data,
true, async);
io_submit_sqe(req, statep, &link);
submitted++;
--
2.24.0
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 3/3] io_uring: cleanup io_import_fixed()
2019-11-25 20:14 [PATCHSET 0/3] io_uring minor cleanup Pavel Begunkov
2019-11-25 20:14 ` [PATCH 1/3] io_uring: store timeout's sqe->off in proper place Pavel Begunkov
2019-11-25 20:14 ` [PATCH 2/3] io_uring: inline struct sqe_submit Pavel Begunkov
@ 2019-11-25 20:14 ` Pavel Begunkov
2019-11-26 4:49 ` [PATCHSET 0/3] io_uring minor cleanup Jens Axboe
3 siblings, 0 replies; 5+ messages in thread
From: Pavel Begunkov @ 2019-11-25 20:14 UTC (permalink / raw)
To: Jens Axboe, io-uring
Clean io_import_fixed() call site and make it return proper type.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
fs/io_uring.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index c75431079a74..7079e774bb8b 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1488,9 +1488,9 @@ static void kiocb_done(struct kiocb *kiocb, ssize_t ret, struct io_kiocb **nxt,
io_rw_done(kiocb, ret);
}
-static int io_import_fixed(struct io_ring_ctx *ctx, int rw,
- const struct io_uring_sqe *sqe,
- struct iov_iter *iter)
+static ssize_t io_import_fixed(struct io_ring_ctx *ctx, int rw,
+ const struct io_uring_sqe *sqe,
+ struct iov_iter *iter)
{
size_t len = READ_ONCE(sqe->len);
struct io_mapped_ubuf *imu;
@@ -1579,11 +1579,9 @@ static ssize_t io_import_iovec(int rw, struct io_kiocb *req,
* flag.
*/
opcode = READ_ONCE(sqe->opcode);
- if (opcode == IORING_OP_READ_FIXED ||
- opcode == IORING_OP_WRITE_FIXED) {
- ssize_t ret = io_import_fixed(req->ctx, rw, sqe, iter);
+ if (opcode == IORING_OP_READ_FIXED || opcode == IORING_OP_WRITE_FIXED) {
*iovec = NULL;
- return ret;
+ return io_import_fixed(req->ctx, rw, sqe, iter);
}
if (!req->has_user)
--
2.24.0
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCHSET 0/3] io_uring minor cleanup
2019-11-25 20:14 [PATCHSET 0/3] io_uring minor cleanup Pavel Begunkov
` (2 preceding siblings ...)
2019-11-25 20:14 ` [PATCH 3/3] io_uring: cleanup io_import_fixed() Pavel Begunkov
@ 2019-11-26 4:49 ` Jens Axboe
3 siblings, 0 replies; 5+ messages in thread
From: Jens Axboe @ 2019-11-26 4:49 UTC (permalink / raw)
To: Pavel Begunkov, io-uring
On 11/25/19 1:14 PM, Pavel Begunkov wrote:
> A set of a bit bulky but straightward cleanups.
> The main part is removing/inlining struct sqe_submit.
>
> Pavel Begunkov (3):
> io_uring: store timeout's sqe->off in proper place
> io_uring: inline struct sqe_submit
> io_uring: cleanup io_import_fixed()
>
> fs/io_uring.c | 188 +++++++++++++++++++++++---------------------------
> 1 file changed, 87 insertions(+), 101 deletions(-)
That's a nice set of cleanups, with some space reclamation! Applied,
thanks.
--
Jens Axboe
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2019-11-26 4:49 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-11-25 20:14 [PATCHSET 0/3] io_uring minor cleanup Pavel Begunkov
2019-11-25 20:14 ` [PATCH 1/3] io_uring: store timeout's sqe->off in proper place Pavel Begunkov
2019-11-25 20:14 ` [PATCH 2/3] io_uring: inline struct sqe_submit Pavel Begunkov
2019-11-25 20:14 ` [PATCH 3/3] io_uring: cleanup io_import_fixed() Pavel Begunkov
2019-11-26 4:49 ` [PATCHSET 0/3] io_uring minor cleanup Jens Axboe
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