[Xen-changelog] [qemu-xen-4.1-testing] qemu-xen-traditional: use O_DIRECT to open disk images for IDE

[patchbot@xxxxxxx]

commit ce440ef43089d98a07a65be4ee5c50e638a65528
Author: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Date:   Mon Apr 2 17:54:08 2012 +0100

    qemu-xen-traditional: use O_DIRECT to open disk images for IDE
    
    [ Major performance fix. -iwj ]
    
    Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
    Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
    (cherry picked from commit 1307e42a4b3c1102d75401bc0cffb4eb6c9b7a38)
---
 xenstore.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/xenstore.c b/xenstore.c
index 4c483e2..ac90366 100644
--- a/xenstore.c
+++ b/xenstore.c
@@ -643,7 +643,7 @@ void xenstore_parse_domain_config(int hvm_domid)
            }
             pstrcpy(bs->filename, sizeof(bs->filename), params);
 
-            flags = BDRV_O_CACHE_WB; /* snapshot and write-back */
+            flags = BDRV_O_NOCACHE;
             is_readonly = 0;
             if (pasprintf(&buf, "%s/mode", bpath) == -1)
                 continue;
--
generated by git-patchbot for /home/xen/git/qemu-xen-4.1-testing.git

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