[Qemu-block] [PATCH] Revert "blockdev: add note that block_job_cb() must be thread-safe"

[Fam Zheng]

This reverts commit 723c5d93c51bdb3adbc238ce90195c0864aa6cd5.

block_job_cb is called by block_job_completed, which is always called in
a main loop bottom half in existing block jobs. So we don't need to
worry about thread-safety here.

Signed-off-by: Fam Zheng <address@hidden>
---
 blockdev.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/blockdev.c b/blockdev.c
index 32b04b4..130b7fb 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2248,11 +2248,6 @@ out:
 
 static void block_job_cb(void *opaque, int ret)
 {
-    /* Note that this function may be executed from another AioContext besides
-     * the QEMU main loop.  If you need to access anything that assumes the
-     * QEMU global mutex, use a BH or introduce a mutex.
-     */
-
     BlockDriverState *bs = opaque;
     const char *msg = NULL;
 
-- 
2.6.1