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authorDavid S. Miller <davem@davemloft.net>2009-12-05 15:22:26 -0800
committerDavid S. Miller <davem@davemloft.net>2009-12-05 15:22:26 -0800
commit28b4d5cc17c20786848cdc07b7ea237a309776bb (patch)
treebae406a4b17229dcce7c11be5073f7a67665e477 /mm/bootmem.c
parentd29cecda036f251aee4947f47eea0fe9ed8cc931 (diff)
parent96fa2b508d2d3fe040cf4ef2fffb955f0a537ea1 (diff)
downloadop-kernel-dev-28b4d5cc17c20786848cdc07b7ea237a309776bb.zip
op-kernel-dev-28b4d5cc17c20786848cdc07b7ea237a309776bb.tar.gz
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts: drivers/net/pcmcia/fmvj18x_cs.c drivers/net/pcmcia/nmclan_cs.c drivers/net/pcmcia/xirc2ps_cs.c drivers/net/wireless/ray_cs.c
Diffstat (limited to 'mm/bootmem.c')
-rw-r--r--mm/bootmem.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/mm/bootmem.c b/mm/bootmem.c
index 555d5d2..d1dc23c 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -143,6 +143,30 @@ unsigned long __init init_bootmem(unsigned long start, unsigned long pages)
return init_bootmem_core(NODE_DATA(0)->bdata, start, 0, pages);
}
+/*
+ * free_bootmem_late - free bootmem pages directly to page allocator
+ * @addr: starting address of the range
+ * @size: size of the range in bytes
+ *
+ * This is only useful when the bootmem allocator has already been torn
+ * down, but we are still initializing the system. Pages are given directly
+ * to the page allocator, no bootmem metadata is updated because it is gone.
+ */
+void __init free_bootmem_late(unsigned long addr, unsigned long size)
+{
+ unsigned long cursor, end;
+
+ kmemleak_free_part(__va(addr), size);
+
+ cursor = PFN_UP(addr);
+ end = PFN_DOWN(addr + size);
+
+ for (; cursor < end; cursor++) {
+ __free_pages_bootmem(pfn_to_page(cursor), 0);
+ totalram_pages++;
+ }
+}
+
static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
{
int aligned;
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