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From: Hao Xu <[email protected]>
To: [email protected]
Cc: Jens Axboe <[email protected]>,
	Pavel Begunkov <[email protected]>,
	[email protected]
Subject: [PATCH 2/4] io_uring: add REQ_F_APOLL_MULTISHOT for requests
Date: Sat,  7 May 2022 22:06:18 +0800	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

From: Hao Xu <[email protected]>

Add a flag to indicate multishot mode for fast poll. currently only
accept use it, but there may be more operations leveraging it in the
future. Also add a mask IO_APOLL_MULTI_POLLED which stands for
REQ_F_APOLL_MULTI | REQ_F_POLLED, to make the code short and cleaner.

Signed-off-by: Hao Xu <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
---
 fs/io_uring.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index b6d491c9a25f..c2ee184ac693 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -116,6 +116,8 @@
 #define IO_REQ_CLEAN_SLOW_FLAGS (REQ_F_REFCOUNT | REQ_F_LINK | REQ_F_HARDLINK |\
 				 IO_REQ_CLEAN_FLAGS)
 
+#define IO_APOLL_MULTI_POLLED (REQ_F_APOLL_MULTISHOT | REQ_F_POLLED)
+
 #define IO_TCTX_REFS_CACHE_NR	(1U << 10)
 
 struct io_uring {
@@ -810,6 +812,7 @@ enum {
 	REQ_F_SINGLE_POLL_BIT,
 	REQ_F_DOUBLE_POLL_BIT,
 	REQ_F_PARTIAL_IO_BIT,
+	REQ_F_APOLL_MULTISHOT_BIT,
 	/* keep async read/write and isreg together and in order */
 	REQ_F_SUPPORT_NOWAIT_BIT,
 	REQ_F_ISREG_BIT,
@@ -874,6 +877,8 @@ enum {
 	REQ_F_DOUBLE_POLL	= BIT(REQ_F_DOUBLE_POLL_BIT),
 	/* request has already done partial IO */
 	REQ_F_PARTIAL_IO	= BIT(REQ_F_PARTIAL_IO_BIT),
+	/* fast poll multishot mode */
+	REQ_F_APOLL_MULTISHOT	= BIT(REQ_F_APOLL_MULTISHOT_BIT),
 };
 
 struct async_poll {
-- 
2.36.0


  parent reply	other threads:[~2022-05-07 14:06 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-07 14:06 [PATCH v3 0/4] fast poll multishot mode Hao Xu
2022-05-07 14:06 ` [PATCH 1/4] io_uring: add IORING_ACCEPT_MULTISHOT for accept Hao Xu
2022-05-07 14:16   ` Jens Axboe
2022-05-07 15:31     ` Hao Xu
2022-05-07 15:38       ` Jens Axboe
2022-05-07 15:52         ` Hao Xu
2022-05-07 15:57           ` Jens Axboe
2022-05-07 16:07             ` Hao Xu
2022-05-07 14:06 ` Hao Xu [this message]
2022-05-07 14:06 ` [PATCH 3/4] io_uring: let fast poll support multishot Hao Xu
2022-05-07 15:28 ` [PATCH v3 0/4] fast poll multishot mode Jens Axboe
2022-05-07 16:05   ` Hao Xu
2022-05-07 16:11     ` Jens Axboe
2022-05-07 17:21       ` Hao Xu
2022-05-08 12:49         ` Jens Axboe
     [not found] <[email protected]>
2022-05-07 17:15 ` [PATCH 2/4] io_uring: add REQ_F_APOLL_MULTISHOT for requests Hao Xu
     [not found] <[email protected]>
2022-05-08 15:32 ` Hao Xu
     [not found] <[email protected]>
2022-05-08 15:37 ` Hao Xu
  -- strict thread matches above, loose matches on Subject: below --
2022-05-14 14:20 [PATCH v6 0/4] fast poll multishot mode Hao Xu
2022-05-14 14:20 ` [PATCH 2/4] io_uring: add REQ_F_APOLL_MULTISHOT for requests Hao Xu

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