From: Stefan Hajnoczi <stefanha@redhat.com>
Date: Wed, 17 Jun 2020 13:21:59 +0000 (+0100)
Subject: block/nvme: clarify that free_req_queue is protected by q->lock
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a5db74f324ee55badfa61b03922ec24439bb94a6;p=qemu.git

block/nvme: clarify that free_req_queue is protected by q->lock

Existing users access free_req_queue under q->lock. Document this.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200617132201.1832152-6-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---

diff --git a/block/nvme.c b/block/nvme.c
index 8e60882af3..426c77e5ab 100644
--- a/block/nvme.c
+++ b/block/nvme.c
@@ -57,7 +57,6 @@ typedef struct {
 } NVMeRequest;
 
 typedef struct {
-    CoQueue     free_req_queue;
     QemuMutex   lock;
 
     /* Fields protected by BQL */
@@ -65,6 +64,7 @@ typedef struct {
     uint8_t     *prp_list_pages;
 
     /* Fields protected by @lock */
+    CoQueue     free_req_queue;
     NVMeQueue   sq, cq;
     int         cq_phase;
     int         free_req_head;