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io_uring: split poll and poll_remove structs 

Don't use a single struct for polls and poll remove requests, they have
totally different layouts.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2020-10-27 23:17:18 +00:00 committed by Jens Axboe
parent 14a1143b68
commit 018043be1f
1 changed files with 9 additions and 8 deletions
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17
fs/io_uring.c
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@ -395,16 +395,18 @@ struct io_ring_ctx {
*/
struct io_poll_iocb {
struct file *file;
union {
struct wait_queue_head *head;
u64 addr;
};
struct wait_queue_head *head;
__poll_t events;
bool done;
bool canceled;
struct wait_queue_entry wait;
};
struct io_poll_remove {
struct file *file;
u64 addr;
};
struct io_close {
struct file *file;
struct file *put_file;
@ -672,6 +674,7 @@ struct io_kiocb {
struct file *file;
struct io_rw rw;
struct io_poll_iocb poll;
struct io_poll_remove poll_remove;
struct io_accept accept;
struct io_sync sync;
struct io_cancel cancel;
@ -5538,7 +5541,7 @@ static int io_poll_remove_prep(struct io_kiocb *req,
sqe->poll_events)
return -EINVAL;
req->poll.addr = READ_ONCE(sqe->addr);
req->poll_remove.addr = READ_ONCE(sqe->addr);
return 0;
}
@ -5549,12 +5552,10 @@ static int io_poll_remove_prep(struct io_kiocb *req,
static int io_poll_remove(struct io_kiocb *req)
{
struct io_ring_ctx *ctx = req->ctx;
u64 addr;
int ret;
addr = req->poll.addr;
spin_lock_irq(&ctx->completion_lock);
ret = io_poll_cancel(ctx, addr);
ret = io_poll_cancel(ctx, req->poll_remove.addr);
spin_unlock_irq(&ctx->completion_lock);
if (ret < 0)