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[Qemu-devel] [PATCH 1/2] Use calloc in qemu_mallocz.
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 1/2] Use calloc in qemu_mallocz. |
Date: |
Fri, 21 May 2010 10:37:51 -0700 |
Avoids the memset if the allocator has gotten new zeroed
storage from the operating system.
Signed-off-by: Richard Henderson <address@hidden>
---
qemu-malloc.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/qemu-malloc.c b/qemu-malloc.c
index 6cdc5de..1b33e04 100644
--- a/qemu-malloc.c
+++ b/qemu-malloc.c
@@ -69,10 +69,10 @@ void *qemu_realloc(void *ptr, size_t size)
void *qemu_mallocz(size_t size)
{
- void *ptr;
- ptr = qemu_malloc(size);
- memset(ptr, 0, size);
- return ptr;
+ if (!size && !allow_zero_malloc()) {
+ abort();
+ }
+ return oom_check(calloc(1, size ? size : 1));
}
char *qemu_strdup(const char *str)
--
1.7.0.1
- Re: [Qemu-devel] [PATCH] virtio-blk: Avoid zeroing every request structure, (continued)
Re: [Qemu-devel] [PATCH] virtio-blk: Avoid zeroing every request structure, Corentin Chary, 2010/05/18
- Re: [Qemu-devel] [PATCH] virtio-blk: Avoid zeroing every request structure, Stefan Hajnoczi, 2010/05/18
- Re: [Qemu-devel] [PATCH] virtio-blk: Avoid zeroing every request structure, Corentin Chary, 2010/05/18
- Re: [Qemu-devel] [PATCH] virtio-blk: Avoid zeroing every request structure, Stefan Hajnoczi, 2010/05/18
- Re: [Qemu-devel] [PATCH] virtio-blk: Avoid zeroing every request structure, Stefan Hajnoczi, 2010/05/21
- [Qemu-devel] [PATCH 0/2] Tidy qemu_malloc, Richard Henderson, 2010/05/21
- Re: [Qemu-devel] [PATCH 0/2] Tidy qemu_malloc, Aurelien Jarno, 2010/05/28
- [Qemu-devel] [PATCH 2/2] linux-user: Use qemu-malloc.c., Richard Henderson, 2010/05/21
- [Qemu-devel] [PATCH 1/2] Use calloc in qemu_mallocz.,
Richard Henderson <=