From: Jesper Juhl <jj@chaosbits.net>
Date: Sat, 30 Oct 2010 19:35:58 +0000 (+0200)
Subject: [IA64] perfmon: Change vmalloc to vzalloc and drop memset.
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e21763dbce76d3a07ead438f8811b3e4bce0825b;p=linux-beck.git

[IA64] perfmon: Change vmalloc to vzalloc and drop memset.

vzalloc() nicely zeroes memory for us, so we don't have to do a vmalloc()
and then manually memset() the returned memory when all we want is for it
to be zero. Patch changes this for pfm_rvmalloc().

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---

diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 39e534f5a3b0..3aee09d2c2de 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -829,10 +829,9 @@ pfm_rvmalloc(unsigned long size)
 	unsigned long addr;
 
 	size = PAGE_ALIGN(size);
-	mem  = vmalloc(size);
+	mem  = vzalloc(size);
 	if (mem) {
 		//printk("perfmon: CPU%d pfm_rvmalloc(%ld)=%p\n", smp_processor_id(), size, mem);
-		memset(mem, 0, size);
 		addr = (unsigned long)mem;
 		while (size > 0) {
 			pfm_reserve_page(addr);