korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-23 20:24:12 +08:00
Code Issues Packages Projects Releases Wiki Activity

io_uring: add tw add flags

Browse Source 
We pass 'allow_local' into io_req_task_work_add() but will need more
flags. Replace it with a flags bit field and name this allow_local
flag.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/4c0f01e7ef4e6feebfb199093cc995af7a19befa.1680782017.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2023-04-06 14:20:10 +01:00 committed by Jens Axboe
parent 6e7248adf8
commit 8501fe70ae
2 changed files with 11 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
io_uring/io_uring.c
View File

@ -1324,12 +1324,13 @@ static void io_req_local_work_add(struct io_kiocb *req)
wake_up_state(ctx->submitter_task, TASK_INTERRUPTIBLE);
}
void __io_req_task_work_add(struct io_kiocb *req, bool allow_local)
void __io_req_task_work_add(struct io_kiocb *req, unsigned flags)
{
struct io_uring_task *tctx = req->task->io_uring;
struct io_ring_ctx *ctx = req->ctx;
if (allow_local && ctx->flags & IORING_SETUP_DEFER_TASKRUN) {
if (!(flags & IOU_F_TWQ_FORCE_NORMAL) &&
(ctx->flags & IORING_SETUP_DEFER_TASKRUN)) {
rcu_read_lock();
io_req_local_work_add(req);
rcu_read_unlock();
@ -1359,7 +1360,7 @@ static void __cold io_move_task_work_from_local(struct io_ring_ctx *ctx)
io_task_work.node);
node = node->next;
__io_req_task_work_add(req, false);
__io_req_task_work_add(req, IOU_F_TWQ_FORCE_NORMAL);
}
}

9
io_uring/io_uring.h
View File

@ -15,6 +15,11 @@
#include <trace/events/io_uring.h>
#endif
enum {
/* don't use deferred task_work */
IOU_F_TWQ_FORCE_NORMAL = 1,
};
enum {
IOU_OK = 0,
IOU_ISSUE_SKIP_COMPLETE = -EIOCBQUEUED,
@ -48,7 +53,7 @@ static inline bool io_req_ffs_set(struct io_kiocb *req)
return req->flags & REQ_F_FIXED_FILE;
}
void __io_req_task_work_add(struct io_kiocb *req, bool allow_local);
void __io_req_task_work_add(struct io_kiocb *req, unsigned flags);
bool io_is_uring_fops(struct file *file);
bool io_alloc_async_data(struct io_kiocb *req);
void io_req_task_queue(struct io_kiocb *req);
@ -93,7 +98,7 @@ bool io_match_task_safe(struct io_kiocb *head, struct task_struct *task,
static inline void io_req_task_work_add(struct io_kiocb *req)
{
__io_req_task_work_add(req, true);
__io_req_task_work_add(req, 0);
}
#define io_for_each_link(pos, head) \