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authorDavid S. Miller <davem@davemloft.net>2011-06-21 07:29:08 +0200
committerDavid S. Miller <davem@davemloft.net>2011-06-21 07:29:08 +0200
commit9f6ec8d697c08963d83880ccd35c13c5ace716ea (patch)
treead8d93cf6fcdd09b86ade09f5fcbbc66cdb1cca2 /arch/powerpc/mm/mem.c
parentgianfar v5: implement nfc (diff)
parentLinux 3.0-rc4 (diff)
downloadlinux-9f6ec8d697c08963d83880ccd35c13c5ace716ea.tar.xz
linux-9f6ec8d697c08963d83880ccd35c13c5ace716ea.zip
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/wireless/iwlwifi/iwl-agn-rxon.c drivers/net/wireless/rtlwifi/pci.c net/netfilter/ipvs/ip_vs_core.c
Diffstat (limited to 'arch/powerpc/mm/mem.c')
-rw-r--r--arch/powerpc/mm/mem.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 57e545b84bf1..29d4dde65c45 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -382,6 +382,25 @@ void __init mem_init(void)
mem_init_done = 1;
}
+#ifdef CONFIG_BLK_DEV_INITRD
+void __init free_initrd_mem(unsigned long start, unsigned long end)
+{
+ if (start >= end)
+ return;
+
+ start = _ALIGN_DOWN(start, PAGE_SIZE);
+ end = _ALIGN_UP(end, PAGE_SIZE);
+ pr_info("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+
+ for (; start < end; start += PAGE_SIZE) {
+ ClearPageReserved(virt_to_page(start));
+ init_page_count(virt_to_page(start));
+ free_page(start);
+ totalram_pages++;
+ }
+}
+#endif
+
/*
* This is called when a page has been modified by the kernel.
* It just marks the page as not i-cache clean. We do the i-cache