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Blame qemu-add-ksm-support.patch

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From 4d64a615f69458c202561fcc01e8e0505fa46ee9 Mon Sep 17 00:00:00 2001
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From: Izik Eidus <ieidus@redhat.com>
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Date: Tue, 28 Jul 2009 19:14:26 +0300
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Subject: [PATCH] kvm userspace: ksm support
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rfc for ksm support to kvm userpsace.
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Signed-off-by: Izik Eidus <ieidus@redhat.com>
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Signed-off-by: Mark McLoughlin <markmc@redhat.com>
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Fedora-patch: qemu-add-ksm-support.patch
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---
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 exec.c |    3 +++
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 1 files changed, 3 insertions(+), 0 deletions(-)
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diff --git a/exec.c b/exec.c
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index 0655b4b..b93f7b8 100644
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--- a/exec.c
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+++ b/exec.c
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@@ -2579,6 +2579,9 @@ ram_addr_t qemu_ram_alloc(ram_addr_t size)
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     new_block->host = file_ram_alloc(size, mem_path);
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     if (!new_block->host) {
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         new_block->host = qemu_vmalloc(size);
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+#ifdef MADV_MERGEABLE
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+        madvise(new_block->host, size, MADV_MERGEABLE);
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+#endif
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     }
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     new_block->offset = last_ram_offset;
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     new_block->length = size;
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-- 
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1.6.2.5
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