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[03/16] block/block: add BDRV flag for io_uring

Message ID 20191007120937.5862-4-stefanha@redhat.com
State New
Headers show
Series io_uring: add Linux io_uring AIO engine | expand

Commit Message

Stefan Hajnoczi Oct. 7, 2019, 12:09 p.m. UTC 
From: Aarushi Mehta <mehta.aaru20@gmail.com>

Signed-off-by: Aarushi Mehta <mehta.aaru20@gmail.com>
Reviewed-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 include/block/block.h | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/include/block/block.h b/include/block/block.h
index 37c9de7446..88a9673734 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -126,6 +126,7 @@  typedef struct HDGeometry {
                                       ignoring the format layer */
 #define BDRV_O_NO_IO       0x10000 /* don't initialize for I/O */
 #define BDRV_O_AUTO_RDONLY 0x20000 /* degrade to read-only if opening read-write fails */
+#define BDRV_O_IO_URING    0x40000 /* use io_uring instead of the thread pool */
 
 #define BDRV_O_CACHE_MASK  (BDRV_O_NOCACHE | BDRV_O_NO_FLUSH)