diff mbox

[v2,04/24] qemu_memalign: Allow small alignments

Message ID 1386940979-3824-5-git-send-email-kwolf@redhat.com
State New
Headers show

Commit Message

Kevin Wolf Dec. 13, 2013, 1:22 p.m. UTC 
The functions used by qemu_memalign() require an alignment that is at
least sizeof(void*). Adjust it if it is too small.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
---
 util/oslib-posix.c | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Max Reitz Jan. 11, 2014, 10:25 p.m. UTC | #1 
On 13.12.2013 14:22, Kevin Wolf wrote:
> The functions used by qemu_memalign() require an alignment that is at
> least sizeof(void*). Adjust it if it is too small.
>
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
> Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
> ---
>   util/oslib-posix.c | 5 +++++
>   1 file changed, 5 insertions(+)

Reviewed-by: Max Reitz <mreitz@redhat.com>
diff mbox

Patch

diff --git a/util/oslib-posix.c b/util/oslib-posix.c
index e00a44c..54f8932 100644
--- a/util/oslib-posix.c
+++ b/util/oslib-posix.c
@@ -85,6 +85,11 @@  void *qemu_oom_check(void *ptr)
 void *qemu_memalign(size_t alignment, size_t size)
 {
     void *ptr;
+
+    if (alignment < sizeof(void*)) {
+        alignment = sizeof(void*);
+    }
+
 #if defined(_POSIX_C_SOURCE) && !defined(__sun__)
     int ret;
     ret = posix_memalign(&ptr, alignment, size);