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[Qemu-block] [PATCH v2 01/16] block: Define BLK_PERM_AIO_CONTEXT_CHANGE
From: |
Fam Zheng |
Subject: |
[Qemu-block] [PATCH v2 01/16] block: Define BLK_PERM_AIO_CONTEXT_CHANGE |
Date: |
Wed, 19 Apr 2017 17:43:41 +0800 |
Signed-off-by: Fam Zheng <address@hidden>
---
block.c | 2 ++
include/block/block.h | 7 ++++++-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/block.c b/block.c
index 1fbbb8d..5a3affb 100644
--- a/block.c
+++ b/block.c
@@ -1562,6 +1562,8 @@ static char *bdrv_perm_names(uint64_t perm)
{ BLK_PERM_WRITE_UNCHANGED, "write unchanged" },
{ BLK_PERM_RESIZE, "resize" },
{ BLK_PERM_GRAPH_MOD, "change children" },
+ { BLK_PERM_AIO_CONTEXT_CHANGE,
+ "aio context change" },
{ 0, NULL }
};
diff --git a/include/block/block.h b/include/block/block.h
index 5ddc0cf..3c409a3 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -221,7 +221,12 @@ enum {
*/
BLK_PERM_GRAPH_MOD = 0x10,
- BLK_PERM_ALL = 0x1f,
+ /**
+ * This permission is required to change the AioContext of this node.
+ */
+ BLK_PERM_AIO_CONTEXT_CHANGE = 0x20,
+
+ BLK_PERM_ALL = 0x3f,
};
/* disk I/O throttling */
--
2.9.3
- [Qemu-block] [PATCH v2 00/16] block: Protect AIO context change with perm API, Fam Zheng, 2017/04/19
- [Qemu-block] [PATCH v2 01/16] block: Define BLK_PERM_AIO_CONTEXT_CHANGE,
Fam Zheng <=
- [Qemu-block] [PATCH v2 02/16] block-backend: Add blk_request_perm, Fam Zheng, 2017/04/19
- [Qemu-block] [PATCH v2 03/16] blockjob: Add BLK_PERM_AIO_CONTEXT_CHANGE shared perm on bs, Fam Zheng, 2017/04/19
- [Qemu-block] [PATCH v2 04/16] blockjob: Allow aio context change on intermediate nodes, Fam Zheng, 2017/04/19
- [Qemu-block] [PATCH v2 05/16] block: Propagate BLK_PERM_AIO_CONTEXT_CHANGE down the graph, Fam Zheng, 2017/04/19
- [Qemu-block] [PATCH v2 06/16] backup: Request BLK_PERM_AIO_CONTEXT_CHANGE on target, Fam Zheng, 2017/04/19
- [Qemu-block] [PATCH v2 07/16] backup: Do initial aio context move of target via BB interface, Fam Zheng, 2017/04/19
- [Qemu-block] [PATCH v2 09/16] commit: Allow aio context change on s->base, Fam Zheng, 2017/04/19
- [Qemu-block] [PATCH v2 08/16] mirror: Request aio context change permission on target, Fam Zheng, 2017/04/19
- [Qemu-block] [PATCH v2 10/16] mirror: Do initial aio context move of target via BB interface, Fam Zheng, 2017/04/19
- [Qemu-block] [PATCH v2 11/16] virtio-scsi: Request BLK_PERM_AIO_CONTEXT_CHANGE for dataplane, Fam Zheng, 2017/04/19