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authorDave Hansen <haveblue@us.ibm.com>2007-01-10 23:15:30 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2007-01-11 18:18:20 -0800
commita2f3aa02576632cdb60bd3de1f4bf55e9ac65604 (patch)
tree2b9b73675de73866fbd219fab5bf2d804e6817b1 /include
parent47a4d5be7c50b2e9b905abbe2b97dc87051c5a44 (diff)
[PATCH] Fix sparsemem on Cell
Fix an oops experienced on the Cell architecture when init-time functions, early_*(), are called at runtime. It alters the call paths to make sure that the callers explicitly say whether the call is being made on behalf of a hotplug even, or happening at boot-time. It has been compile tested on ppc64, ia64, s390, i386 and x86_64. Acked-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Acked-by: Andy Whitcroft <apw@shadowen.org> Cc: Christoph Lameter <clameter@engr.sgi.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mm.h3
-rw-r--r--include/linux/mmzone.h8
2 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index a17b147c61e..76912231af4 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -978,7 +978,8 @@ extern int early_pfn_to_nid(unsigned long pfn);
#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */
#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */
extern void set_dma_reserve(unsigned long new_dma_reserve);
-extern void memmap_init_zone(unsigned long, int, unsigned long, unsigned long);
+extern void memmap_init_zone(unsigned long, int, unsigned long,
+ unsigned long, enum memmap_context);
extern void setup_per_zone_pages_min(void);
extern void mem_init(void);
extern void show_mem(void);
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index e339a7345f2..b262f47961f 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -450,9 +450,13 @@ void build_all_zonelists(void);
void wakeup_kswapd(struct zone *zone, int order);
int zone_watermark_ok(struct zone *z, int order, unsigned long mark,
int classzone_idx, int alloc_flags);
-
+enum memmap_context {
+ MEMMAP_EARLY,
+ MEMMAP_HOTPLUG,
+};
extern int init_currently_empty_zone(struct zone *zone, unsigned long start_pfn,
- unsigned long size);
+ unsigned long size,
+ enum memmap_context context);
#ifdef CONFIG_HAVE_MEMORY_PRESENT
void memory_present(int nid, unsigned long start, unsigned long end);