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io_uring: inline __tctx_task_work()

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Inline __tctx_task_work() into tctx_task_work() in preparation for
further optimisations.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/f9c05c4bc9763af7bd8e25ebc3c5f7b6f69148f8.1623949695.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2021-06-17 18:14:06 +01:00 committed by Jens Axboe
parent a3dbdf54da
commit 3f18407dc6
1 changed files with 31 additions and 36 deletions
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67
fs/io_uring.c
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@ -1888,48 +1888,43 @@ static void ctx_flush_and_put(struct io_ring_ctx *ctx)
percpu_ref_put(&ctx->refs);
}
static bool __tctx_task_work(struct io_uring_task *tctx)
{
struct io_ring_ctx *ctx = NULL;
struct io_wq_work_list list;
struct io_wq_work_node *node;
if (wq_list_empty(&tctx->task_list))
return false;
spin_lock_irq(&tctx->task_lock);
list = tctx->task_list;
INIT_WQ_LIST(&tctx->task_list);
spin_unlock_irq(&tctx->task_lock);
node = list.first;
while (node) {
struct io_wq_work_node *next = node->next;
struct io_kiocb *req;
req = container_of(node, struct io_kiocb, io_task_work.node);
if (req->ctx != ctx) {
ctx_flush_and_put(ctx);
ctx = req->ctx;
percpu_ref_get(&ctx->refs);
}
req->task_work.func(&req->task_work);
node = next;
}
ctx_flush_and_put(ctx);
return list.first != NULL;
}
static void tctx_task_work(struct callback_head *cb)
{
struct io_uring_task *tctx = container_of(cb, struct io_uring_task, task_work);
struct io_uring_task *tctx = container_of(cb, struct io_uring_task,
task_work);
clear_bit(0, &tctx->task_state);
while (__tctx_task_work(tctx))
while (!wq_list_empty(&tctx->task_list)) {
struct io_ring_ctx *ctx = NULL;
struct io_wq_work_list list;
struct io_wq_work_node *node;
spin_lock_irq(&tctx->task_lock);
list = tctx->task_list;
INIT_WQ_LIST(&tctx->task_list);
spin_unlock_irq(&tctx->task_lock);
node = list.first;
while (node) {
struct io_wq_work_node *next = node->next;
struct io_kiocb *req = container_of(node, struct io_kiocb,
io_task_work.node);
if (req->ctx != ctx) {
ctx_flush_and_put(ctx);
ctx = req->ctx;
percpu_ref_get(&ctx->refs);
}
req->task_work.func(&req->task_work);
node = next;
}
ctx_flush_and_put(ctx);
if (!list.first)
break;
cond_resched();
}
}
static int io_req_task_work_add(struct io_kiocb *req)