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authorAnuj Gupta <anuj20.g@samsung.com>2022-09-30 11:57:39 +0530
committerJens Axboe <axboe@kernel.dk>2022-09-30 07:50:59 -0600
commit9cda70f622cdcf049521a9c2886e5fd8a90a0591 (patch)
tree4b56fa2929bfb24a0211c20e561a55453c041878 /include/linux/io_uring.h
parenta9216fac3ed8819cbbda5d39dd5fcaa43dfd35d8 (diff)
downloadlwn-9cda70f622cdcf049521a9c2886e5fd8a90a0591.tar.gz
lwn-9cda70f622cdcf049521a9c2886e5fd8a90a0591.zip
io_uring: introduce fixed buffer support for io_uring_cmd
Add IORING_URING_CMD_FIXED flag that is to be used for sending io_uring command with previously registered buffers. User-space passes the buffer index in sqe->buf_index, same as done in read/write variants that uses fixed buffers. Signed-off-by: Anuj Gupta <anuj20.g@samsung.com> Signed-off-by: Kanchan Joshi <joshi.k@samsung.com> Link: https://lore.kernel.org/r/20220930062749.152261-3-anuj20.g@samsung.com [axboe: shuffle valid flags check before acting on it] Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/io_uring.h')
-rw-r--r--include/linux/io_uring.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/io_uring.h b/include/linux/io_uring.h
index 1dbf51115c30..e10c5cc81082 100644
--- a/include/linux/io_uring.h
+++ b/include/linux/io_uring.h
@@ -28,7 +28,7 @@ struct io_uring_cmd {
void *cookie;
};
u32 cmd_op;
- u32 pad;
+ u32 flags;
u8 pdu[32]; /* available inline for free use */
};