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io_uring: simplify __io_uring_add_tctx_node 

Remove submitter parameter from __io_uring_add_tctx_node.

It was only called from one place, and we can do that logic in that one
place.

Signed-off-by: Dylan Yudaken <dylany@fb.com>
Fixes: 97bbdc06a4 ("io_uring: add IORING_SETUP_SINGLE_ISSUER")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Dylan Yudaken 2022-09-26 10:09:26 -07:00 committed by Jens Axboe
parent 9d84bb40bc
commit 97c96e9fa3
3 changed files with 25 additions and 13 deletions
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2
io_uring/io_uring.c
View File

@ -3355,7 +3355,7 @@ static int io_uring_install_fd(struct io_ring_ctx *ctx, struct file *file)
if (fd < 0)
return fd;
ret = __io_uring_add_tctx_node(ctx, false);
ret = __io_uring_add_tctx_node(ctx);
if (ret) {
put_unused_fd(fd);
return ret;

30
io_uring/tctx.c
View File

@ -105,18 +105,12 @@ static int io_register_submitter(struct io_ring_ctx *ctx)
return ret;
}
int __io_uring_add_tctx_node(struct io_ring_ctx *ctx, bool submitter)
int __io_uring_add_tctx_node(struct io_ring_ctx *ctx)
{
struct io_uring_task *tctx = current->io_uring;
struct io_tctx_node *node;
int ret;
if ((ctx->flags & IORING_SETUP_SINGLE_ISSUER) && submitter) {
ret = io_register_submitter(ctx);
if (ret)
return ret;
}
if (unlikely(!tctx)) {
ret = io_uring_alloc_task_context(current, ctx);
if (unlikely(ret))
@ -150,8 +144,24 @@ int __io_uring_add_tctx_node(struct io_ring_ctx *ctx, bool submitter)
list_add(&node->ctx_node, &ctx->tctx_list);
mutex_unlock(&ctx->uring_lock);
}
if (submitter)
tctx->last = ctx;
return 0;
}
int __io_uring_add_tctx_node_from_submit(struct io_ring_ctx *ctx)
{
int ret;
if (ctx->flags & IORING_SETUP_SINGLE_ISSUER) {
ret = io_register_submitter(ctx);
if (ret)
return ret;
}
ret = __io_uring_add_tctx_node(ctx);
if (ret)
return ret;
current->io_uring->last = ctx;
return 0;
}
@ -259,7 +269,7 @@ int io_ringfd_register(struct io_ring_ctx *ctx, void __user *__arg,
return -EINVAL;
mutex_unlock(&ctx->uring_lock);
ret = __io_uring_add_tctx_node(ctx, false);
ret = __io_uring_add_tctx_node(ctx);
mutex_lock(&ctx->uring_lock);
if (ret)
return ret;

6
io_uring/tctx.h
View File

@ -9,7 +9,8 @@ struct io_tctx_node {
int io_uring_alloc_task_context(struct task_struct *task,
struct io_ring_ctx *ctx);
void io_uring_del_tctx_node(unsigned long index);
int __io_uring_add_tctx_node(struct io_ring_ctx *ctx, bool submitter);
int __io_uring_add_tctx_node(struct io_ring_ctx *ctx);
int __io_uring_add_tctx_node_from_submit(struct io_ring_ctx *ctx);
void io_uring_clean_tctx(struct io_uring_task *tctx);
void io_uring_unreg_ringfd(void);
@ -27,5 +28,6 @@ static inline int io_uring_add_tctx_node(struct io_ring_ctx *ctx)
if (likely(tctx && tctx->last == ctx))
return 0;
return __io_uring_add_tctx_node(ctx, true);
return __io_uring_add_tctx_node_from_submit(ctx);
}