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[02/14] block: Define BDRV_O_SHARE_RW

Message ID 1477928314-11184-3-git-send-email-famz@redhat.com
State New
Headers show

Commit Message

Fam Zheng Oct. 31, 2016, 3:38 p.m. UTC 
Signed-off-by: Fam Zheng <famz@redhat.com>
---
 include/block/block.h | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/include/block/block.h b/include/block/block.h
index 107c603..d09a932 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -98,6 +98,8 @@  typedef struct HDGeometry {
                                       select an appropriate protocol driver,
                                       ignoring the format layer */
 #define BDRV_O_NO_IO       0x10000 /* don't initialize for I/O */
+#define BDRV_O_SHARE_RW    0x20000 /* accept shared read-write from other users
+                                      of the image */
 
 #define BDRV_O_CACHE_MASK  (BDRV_O_NOCACHE | BDRV_O_NO_FLUSH)