From: Pavel Begunkov <[email protected]>
To: [email protected]
Cc: Jens Axboe <[email protected]>,
[email protected], [email protected]
Subject: [PATCH 04/11] io_uring: io_free_req() via tw
Date: Thu, 30 Mar 2023 15:53:22 +0100 [thread overview]
Message-ID: <6b0c640860a6250abf883840b160ccd50fd5f311.1680187408.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>
io_free_req() is not often used but nevertheless problematic as there is
no way to know the current context, it may be used from the submission
path or even by an irq handler. Push it to a fresh context using
task_work.
Signed-off-by: Pavel Begunkov <[email protected]>
---
io_uring/io_uring.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index c944833099a6..52a88da65f57 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -1116,7 +1116,7 @@ static inline void io_dismantle_req(struct io_kiocb *req)
io_put_file(req->file);
}
-__cold void io_free_req(struct io_kiocb *req)
+__cold void io_free_req_tw(struct io_kiocb *req, struct io_tw_state *ts)
{
struct io_ring_ctx *ctx = req->ctx;
@@ -1130,6 +1130,12 @@ __cold void io_free_req(struct io_kiocb *req)
spin_unlock(&ctx->completion_lock);
}
+__cold void io_free_req(struct io_kiocb *req)
+{
+ req->io_task_work.func = io_free_req_tw;
+ io_req_task_work_add(req);
+}
+
static void __io_req_find_next_prep(struct io_kiocb *req)
{
struct io_ring_ctx *ctx = req->ctx;
--
2.39.1
next prev parent reply other threads:[~2023-03-30 14:54 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-30 14:53 [RFC 00/11] optimise registered buffer/file updates Pavel Begunkov
2023-03-30 14:53 ` [PATCH 01/11] io_uring/rsrc: use non-pcpu refcounts for nodes Pavel Begunkov
2023-03-30 14:53 ` [PATCH 02/11] io_uring/rsrc: keep cached refs per node Pavel Begunkov
2023-03-30 14:53 ` [PATCH 03/11] io_uring: don't put nodes under spinlocks Pavel Begunkov
2023-03-30 14:53 ` Pavel Begunkov [this message]
2023-03-30 14:53 ` [PATCH 05/11] io_uring/rsrc: protect node refs with uring_lock Pavel Begunkov
2023-03-30 14:53 ` [PATCH 06/11] io_uring/rsrc: kill rsrc_ref_lock Pavel Begunkov
2023-03-30 14:53 ` [PATCH 07/11] io_uring/rsrc: rename rsrc_list Pavel Begunkov
2023-03-30 14:53 ` [PATCH 08/11] io_uring/rsrc: optimise io_rsrc_put allocation Pavel Begunkov
2023-03-30 14:53 ` [PATCH 09/11] io_uring/rsrc: don't offload node free Pavel Begunkov
2023-03-30 14:53 ` [PATCH 10/11] io_uring/rsrc: cache struct io_rsrc_node Pavel Begunkov
2023-03-31 14:09 ` Gabriel Krisman Bertazi
2023-03-31 16:27 ` Pavel Begunkov
2023-04-01 0:04 ` Gabriel Krisman Bertazi
2023-04-04 13:21 ` Pavel Begunkov
2023-04-04 15:48 ` Gabriel Krisman Bertazi
2023-04-04 15:52 ` Jens Axboe
2023-04-04 16:53 ` Gabriel Krisman Bertazi
2023-04-04 18:26 ` Pavel Begunkov
2023-03-30 14:53 ` [PATCH 11/11] io_uring/rsrc: add lockdep sanity checks Pavel Begunkov
2023-03-31 13:35 ` [RFC 00/11] optimise registered buffer/file updates Gabriel Krisman Bertazi
2023-03-31 16:21 ` Pavel Begunkov
2023-03-31 15:18 ` Jens Axboe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6b0c640860a6250abf883840b160ccd50fd5f311.1680187408.git.asml.silence@gmail.com \
[email protected] \
[email protected] \
[email protected] \
[email protected] \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox