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[Qemu-devel] [PATCH v2 04/24] qemu_memalign: Allow small alignments
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH v2 04/24] qemu_memalign: Allow small alignments |
Date: |
Fri, 13 Dec 2013 14:22:39 +0100 |
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 <address@hidden>
Reviewed-by: Wenchao Xia <address@hidden>
---
util/oslib-posix.c | 5 +++++
1 file changed, 5 insertions(+)
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);
--
1.8.1.4
- [Qemu-devel] [PATCH v2 00/24] block: Support for 512b-on-4k emulatio, Kevin Wolf, 2013/12/13
- [Qemu-devel] [PATCH v2 02/24] block: Inherit opt_transfer_length, Kevin Wolf, 2013/12/13
- [Qemu-devel] [PATCH v2 03/24] block: Update BlockLimits when they might have changed, Kevin Wolf, 2013/12/13
- [Qemu-devel] [PATCH v2 01/24] block: Move initialisation of BlockLimits to bdrv_refresh_limits(), Kevin Wolf, 2013/12/13
- [Qemu-devel] [PATCH v2 04/24] qemu_memalign: Allow small alignments,
Kevin Wolf <=
- [Qemu-devel] [PATCH v2 06/24] block: Don't use guest sector size for qemu_blockalign(), Kevin Wolf, 2013/12/13
- [Qemu-devel] [PATCH v2 07/24] block: rename buffer_alignment to guest_block_size, Kevin Wolf, 2013/12/13
- [Qemu-devel] [PATCH v2 08/24] raw: Probe required direct I/O alignment, Kevin Wolf, 2013/12/13
- [Qemu-devel] [PATCH v2 05/24] block: Detect unaligned length in bdrv_qiov_is_aligned(), Kevin Wolf, 2013/12/13
- [Qemu-devel] [PATCH v2 09/24] block: Introduce bdrv_aligned_preadv(), Kevin Wolf, 2013/12/13
- [Qemu-devel] [PATCH v2 10/24] block: Introduce bdrv_co_do_preadv(), Kevin Wolf, 2013/12/13
- [Qemu-devel] [PATCH v2 11/24] block: Introduce bdrv_aligned_pwritev(), Kevin Wolf, 2013/12/13