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[Qemu-devel] [PATCH v4 20/38] block: Add blk_insert_bs()
From: |
Max Reitz |
Subject: |
[Qemu-devel] [PATCH v4 20/38] block: Add blk_insert_bs() |
Date: |
Mon, 20 Jul 2015 19:45:47 +0200 |
This function associates the given BlockDriverState with the given
BlockBackend.
Signed-off-by: Max Reitz <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Reviewed-by: Alberto Garcia <address@hidden>
---
block/block-backend.c | 16 ++++++++++++++++
include/sysemu/block-backend.h | 1 +
2 files changed, 17 insertions(+)
diff --git a/block/block-backend.c b/block/block-backend.c
index 99429df..723a0df 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -314,6 +314,22 @@ void blk_hide_on_behalf_of_hmp_drive_del(BlockBackend *blk)
}
/*
+ * Associates a new BlockDriverState with @blk.
+ */
+void blk_insert_bs(BlockBackend *blk, BlockDriverState *bs)
+{
+ if (bs->blk == blk) {
+ return;
+ }
+
+ assert(!blk->bs);
+ assert(!bs->blk);
+ bdrv_ref(bs);
+ blk->bs = bs;
+ bs->blk = blk;
+}
+
+/*
* Attach device model @dev to @blk.
* Return 0 on success, -EBUSY when a device model is attached already.
*/
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index 52e35a1..9306a52 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -72,6 +72,7 @@ BlockBackend *blk_by_name(const char *name);
BlockBackend *blk_next(BlockBackend *blk);
BlockDriverState *blk_bs(BlockBackend *blk);
+void blk_insert_bs(BlockBackend *blk, BlockDriverState *bs);
void blk_hide_on_behalf_of_hmp_drive_del(BlockBackend *blk);
--
2.4.6
- [Qemu-devel] [PATCH v4 10/38] hw/usb-storage: Check whether BB is inserted, (continued)
- [Qemu-devel] [PATCH v4 10/38] hw/usb-storage: Check whether BB is inserted, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 09/38] hw/block/fdc: Implement tray status, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 11/38] block: Fix BB AIOCB AioContext without BDS, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 12/38] block: Move guest_block_size into BlockBackend, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 13/38] block: Remove wr_highest_sector from BlockAcctStats, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 14/38] block: Move BlockAcctStats into BlockBackend, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 16/38] block: Add BlockBackendRootState, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 15/38] block: Move I/O status and error actions into BB, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 17/38] block: Make some BB functions fall back to BBRS, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 18/38] block: Fail requests to empty BlockBackend, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 20/38] block: Add blk_insert_bs(),
Max Reitz <=
- [Qemu-devel] [PATCH v4 22/38] blockdev: Do not create BDS for empty drive, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 21/38] block: Prepare for NULL BDS, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 23/38] blockdev: Pull out blockdev option extraction, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 24/38] blockdev: Allow more options for BB-less BDS tree, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 25/38] block: Add blk_remove_bs(), Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 27/38] blockdev: Add blockdev-close-tray, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 26/38] blockdev: Add blockdev-open-tray, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 29/38] blockdev: Add blockdev-insert-medium, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 28/38] blockdev: Add blockdev-remove-medium, Max Reitz, 2015/07/20
- [Qemu-devel] [PATCH v4 35/38] blockdev: read-only-mode for blockdev-change-medium, Max Reitz, 2015/07/20