From: Pavel Begunkov <[email protected]>
To: [email protected]
Cc: Jens Axboe <[email protected]>,
[email protected], Conrad Meyer <[email protected]>,
[email protected], [email protected],
Christoph Hellwig <[email protected]>
Subject: [PATCH v3 2/8] io_uring/cmd: give inline space in request to cmds
Date: Wed, 4 Sep 2024 15:18:01 +0100 [thread overview]
Message-ID: <7ca779a61ee5e166e535d70df9c7f07b15d8a0ce.1725459175.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>
Some io_uring commands can use some inline space in io_kiocb. We have 32
bytes in struct io_uring_cmd, expose it.
Signed-off-by: Pavel Begunkov <[email protected]>
---
include/linux/io_uring/cmd.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/linux/io_uring/cmd.h b/include/linux/io_uring/cmd.h
index 86ceb3383e49..c189d36ad55e 100644
--- a/include/linux/io_uring/cmd.h
+++ b/include/linux/io_uring/cmd.h
@@ -23,6 +23,15 @@ static inline const void *io_uring_sqe_cmd(const struct io_uring_sqe *sqe)
return sqe->cmd;
}
+static inline void io_uring_cmd_private_sz_check(size_t cmd_sz)
+{
+ BUILD_BUG_ON(cmd_sz > sizeof_field(struct io_uring_cmd, pdu));
+}
+#define io_uring_cmd_to_pdu(cmd, pdu_type) ( \
+ io_uring_cmd_private_sz_check(sizeof(pdu_type)), \
+ ((pdu_type *)&(cmd)->pdu) \
+)
+
#if defined(CONFIG_IO_URING)
int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw,
struct iov_iter *iter, void *ioucmd);
--
2.45.2
next prev parent reply other threads:[~2024-09-04 14:17 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-04 14:17 [PATCH v3 0/8] implement async block discards and other ops via io_uring Pavel Begunkov
2024-09-04 14:18 ` [PATCH v3 1/8] io_uring/cmd: expose iowq to cmds Pavel Begunkov
2024-09-04 14:18 ` Pavel Begunkov [this message]
2024-09-04 14:18 ` [PATCH v3 3/8] filemap: introduce filemap_invalidate_pages Pavel Begunkov
2024-09-04 14:18 ` [PATCH v3 4/8] block: introduce blk_validate_byte_range() Pavel Begunkov
2024-09-04 14:18 ` [PATCH v3 5/8] block: implement async discard as io_uring cmd Pavel Begunkov
2024-09-04 14:18 ` [PATCH v3 6/8] block: implement async write zeroes command Pavel Begunkov
2024-09-04 14:18 ` [PATCH v3 7/8] block: add nowait flag for __blkdev_issue_zero_pages Pavel Begunkov
2024-09-06 3:23 ` kernel test robot
2024-09-06 13:41 ` Jens Axboe
2024-09-06 13:46 ` Pavel Begunkov
2024-09-04 14:18 ` [PATCH v3 8/8] block: implement async write zero pages command Pavel Begunkov
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