Patchwork [v4,07/19] block: use BDRV_O_NOCACHE instead of s->aligned_buf in raw-posix.c

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Submitter Jeff Cody
Date Sept. 20, 2012, 7:13 p.m.
Message ID <983d2030757b08d4e6be9503b21a5307f0df7795.1348157913.git.jcody@redhat.com>
Download mbox | patch
Permalink /patch/185485/
State New
Headers show

Comments

Jeff Cody - Sept. 20, 2012, 7:13 p.m.
Rather than check for a non-NULL aligned_buf to determine if
raw_aio_submit needs to check for alignment, check for the presence
of BDRV_O_NOCACHE in the bs->open_flags.

Signed-off-by: Jeff Cody <jcody@redhat.com>
---
 block/raw-posix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/block/raw-posix.c b/block/raw-posix.c
index 288e7ff..1e727eb 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -354,7 +354,7 @@  static BlockDriverAIOCB *raw_aio_submit(BlockDriverState *bs,
      * boundary.  Check if this is the case or tell the low-level
      * driver that it needs to copy the buffer.
      */
-    if (s->aligned_buf) {
+    if ((bs->open_flags & BDRV_O_NOCACHE)) {
         if (!qiov_is_aligned(bs, qiov)) {
             type |= QEMU_AIO_MISALIGNED;
 #ifdef CONFIG_LINUX_AIO