commit d861ab3acf8dcf817e0c2335979b258847b69564
author Kevin Wolf <kwolf@redhat.com> Thu Apr 25 14:25:10 2019 +0200
committer Kevin Wolf <kwolf@redhat.com> Tue Jun 04 15:22:22 2019 +0200
tree 9e334e6976355a7a262e3a9200354008195becfc
parent 97896a4887a0a29c3314c5f0e9a82e269a6401fc

block: Add BlockBackend.ctx

This adds a new parameter to blk_new() which requires its callers to
declare from which AioContext this BlockBackend is going to be used (or
the locks of which AioContext need to be taken anyway).

The given context is only stored and kept up to date when changing
AioContexts. Actually applying the stored AioContext to the root node
is saved for another commit.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>

blockdev.c

diff --git a/blockdev.c b/blockdev.c
index d88dc11..e1ad92c 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -574,7 +574,7 @@
     if ((!file || !*file) && !qdict_size(bs_opts)) {
         BlockBackendRootState *blk_rs;
 
-        blk = blk_new(0, BLK_PERM_ALL);
+        blk = blk_new(qemu_get_aio_context(), 0, BLK_PERM_ALL);
         blk_rs = blk_get_root_state(blk);
         blk_rs->open_flags    = bdrv_flags;
         blk_rs->read_only     = read_only;
@@ -3154,7 +3154,7 @@
         goto out;
     }
 
-    blk = blk_new(BLK_PERM_RESIZE, BLK_PERM_ALL);
+    blk = blk_new(bdrv_get_aio_context(bs), BLK_PERM_RESIZE, BLK_PERM_ALL);
     ret = blk_insert_bs(blk, bs, errp);
     if (ret < 0) {
         goto out;