From: Hiroyuki KAMEZAWA <kamezawa.hiroyu@jp.fujitsu.com>
To: LinuxIA64 <linux-ia64@vger.kernel.org>
Cc: linux-mm <linux-mm@kvack.org>
Subject: [RFC/PATCH] pfn_valid more generic : ia64 part [2/2]
Date: Wed, 06 Oct 2004 15:43:19 +0900 [thread overview]
Message-ID: <41639407.9050504@jp.fujitsu.com> (raw)
This is ia64 + generic_arch/CONFIG_DISCONTIG part.
This patch doesn't cover all ia64 configration.
BTW, my previous e-mail was named "arch independent part [0/2]"....
it should be [1/2] , sorry.
Kame <kamezawa.hiroyu@jp.fujitsu.com>
---
test-pfn-valid-kamezawa/arch/ia64/mm/discontig.c | 2 ++
test-pfn-valid-kamezawa/arch/ia64/mm/init.c | 12 ------------
test-pfn-valid-kamezawa/include/asm-ia64/page.h | 4 +++-
3 files changed, 5 insertions(+), 13 deletions(-)
diff -puN include/asm-ia64/page.h~ia64_careful_pfn_valid include/asm-ia64/page.h
--- test-pfn-valid/include/asm-ia64/page.h~ia64_careful_pfn_valid 2004-10-05 15:22:23.000000000 +0900
+++ test-pfn-valid-kamezawa/include/asm-ia64/page.h 2004-10-05 15:22:23.000000000 +0900
@@ -78,7 +78,9 @@ do { \
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
#ifdef CONFIG_VIRTUAL_MEM_MAP
-extern int ia64_pfn_valid (unsigned long pfn);
+#define CAREFUL_PFN_VALID 1
+#define ia64_pfn_valid(x) careful_pfn_valid(x)
#else
# define ia64_pfn_valid(pfn) 1
#endif
diff -puN arch/ia64/mm/discontig.c~ia64_careful_pfn_valid arch/ia64/mm/discontig.c
--- test-pfn-valid/arch/ia64/mm/discontig.c~ia64_careful_pfn_valid 2004-10-05 15:22:23.000000000 +0900
+++ test-pfn-valid-kamezawa/arch/ia64/mm/discontig.c 2004-10-05 15:22:23.000000000 +0900
@@ -475,6 +475,7 @@ void __init find_memory(void)
max_pfn = max_low_pfn;
find_initrd();
+ pfn_valid_init();
}
/**
@@ -692,4 +693,5 @@ void paging_init(void)
}
zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
+ pfn_valid_setup();
}
diff -puN arch/ia64/mm/init.c~ia64_careful_pfn_valid arch/ia64/mm/init.c
--- test-pfn-valid/arch/ia64/mm/init.c~ia64_careful_pfn_valid 2004-10-05 15:22:23.000000000 +0900
+++ test-pfn-valid-kamezawa/arch/ia64/mm/init.c 2004-10-05 15:22:23.000000000 +0900
@@ -455,18 +455,6 @@ memmap_init (unsigned long size, int nid
}
int
-ia64_pfn_valid (unsigned long pfn)
-{
- char byte;
- struct page *pg = pfn_to_page(pfn);
-
- return (__get_user(byte, (char *) pg) == 0)
- && ((((u64)pg & PAGE_MASK) == (((u64)(pg + 1) - 1) & PAGE_MASK))
- || (__get_user(byte, (char *) (pg + 1) - 1) == 0));
-}
-EXPORT_SYMBOL(ia64_pfn_valid);
-
-int
find_largest_hole (u64 start, u64 end, void *arg)
{
u64 *max_gap = arg;
_
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reply other threads:[~2004-10-06 6:37 UTC|newest]
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