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[140/156] scsi-disk: fix bug in scsi_block_new_request() introduced by commit 137745c

Message ID 1404839947-1086-141-git-send-email-mdroth@linux.vnet.ibm.com
State New
Headers show

Commit Message

Michael Roth July 8, 2014, 5:18 p.m. UTC 
From: Ulrich Obergfell <uobergfe@redhat.com>

This patch fixes a bug in scsi_block_new_request() that was introduced
by commit 137745c5c60f083ec982fe9e861e8c16ebca1ba8. If the host cache
is used - i.e. if BDRV_O_NOCACHE is _not_ set - the 'break' statement
needs to be executed to 'fall back' to SG_IO.

Cc: qemu-stable@nongnu.org
Signed-off-by: Ulrich Obergfell <uobergfe@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 2fe5a9f73b3446690db2cae8a58473b0b4beaa32)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
 hw/scsi/scsi-disk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index ade5d4a..06c31e9 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -2372,7 +2372,7 @@  static SCSIRequest *scsi_block_new_request(SCSIDevice *d, uint32_t tag,
 	 * ones (such as WRITE SAME or EXTENDED COPY, etc.).  So, without
 	 * O_DIRECT everything must go through SG_IO.
          */
-        if (bdrv_get_flags(s->qdev.conf.bs) & BDRV_O_NOCACHE) {
+        if (!(bdrv_get_flags(s->qdev.conf.bs) & BDRV_O_NOCACHE)) {
             break;
         }