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[Qemu-devel] [PULL 68/93] qemu_memalign: Allow small alignments
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PULL 68/93] qemu_memalign: Allow small alignments |
Date: |
Fri, 24 Jan 2014 18:21:51 +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>
Reviewed-by: Max Reitz <address@hidden>
Reviewed-by: BenoƮt Canet <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 f5c4016..d5dca47 100644
--- a/util/oslib-posix.c
+++ b/util/oslib-posix.c
@@ -88,6 +88,11 @@ 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] [PULL 50/93] drive mirror:fix memory leak, (continued)
- [Qemu-devel] [PULL 50/93] drive mirror:fix memory leak, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 52/93] qapi: Add "backing" to BlockStats, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 54/93] block: Allow the user to define "node-name" option both on command line and QMP., Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 53/93] block: Add bs->node_name to hold the name of a bs node of the bs graph., Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 61/93] block: resize backing file image during offline commit, if necessary, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 62/93] block: resize backing image during active layer commit, if needed, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 64/93] block: Fix bdrv_commit return value, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 63/93] block: update block commit documentation regarding image truncation, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 65/93] block: Move initialisation of BlockLimits to bdrv_refresh_limits(), Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 66/93] block: Inherit opt_transfer_length, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 68/93] qemu_memalign: Allow small alignments,
Kevin Wolf <=
- [Qemu-devel] [PULL 67/93] block: Update BlockLimits when they might have changed, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 69/93] block: Detect unaligned length in bdrv_qiov_is_aligned(), Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 70/93] block: Don't use guest sector size for qemu_blockalign(), Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 71/93] block: rename buffer_alignment to guest_block_size, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 72/93] raw: Probe required direct I/O alignment, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 76/93] block: write: Handle COR dependency after I/O throttling, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 77/93] block: Introduce bdrv_co_do_pwritev(), Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 78/93] block: Switch BdrvTrackedRequest to byte granularity, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 79/93] block: Allow waiting for overlapping requests between begin/end, Kevin Wolf, 2014/01/24
- [Qemu-devel] [PULL 80/93] block: Make zero-after-EOF work with larger alignment, Kevin Wolf, 2014/01/24