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authorPaolo Bonzini <pbonzini@redhat.com>2017-06-05 14:38:54 +0200
committerFam Zheng <famz@redhat.com>2017-06-16 07:55:00 +0800
commite2a6ae7fe57c17199624e4d47826ec46ca57d546 (patch)
tree081efb61697d284b83fdf40c31195c8da0ac425e /include/block/block_int.h
parent20fc71b25cfd8102b7f12a2b44133894ad90040a (diff)
block: access wakeup with atomic ops
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20170605123908.18777-6-pbonzini@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com>
Diffstat (limited to 'include/block/block_int.h')
-rw-r--r--include/block/block_int.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 39be34af5c..cf544b7f31 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -604,8 +604,6 @@ struct BlockDriverState {
/* Callback before write request is processed */
NotifierWithReturnList before_write_notifiers;
- bool wakeup;
-
/* Offset after the highest byte written to */
uint64_t wr_highest_offset;
@@ -636,6 +634,11 @@ struct BlockDriverState {
unsigned int in_flight;
unsigned int serialising_in_flight;
+ /* Internal to BDRV_POLL_WHILE and bdrv_wakeup. Accessed with atomic
+ * ops.
+ */
+ bool wakeup;
+
/* do we need to tell the quest if we have a volatile write cache? */
int enable_write_cache;