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| author | Dave Hansen <haveblue@us.ibm.com> | 2007-01-10 23:15:30 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2007-01-11 18:18:20 -0800 |
| commit | a2f3aa02576632cdb60bd3de1f4bf55e9ac65604 (patch) | |
| tree | 2b9b73675de73866fbd219fab5bf2d804e6817b1 /include/linux | |
| parent | 47a4d5be7c50b2e9b905abbe2b97dc87051c5a44 (diff) | |
| download | op-kernel-dev-a2f3aa02576632cdb60bd3de1f4bf55e9ac65604.zip op-kernel-dev-a2f3aa02576632cdb60bd3de1f4bf55e9ac65604.tar.gz | |
[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/linux')
| -rw-r--r-- | include/linux/mm.h | 3 | ||||
| -rw-r--r-- | include/linux/mmzone.h | 8 |
2 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index a17b147..7691223 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 e339a73..b262f47 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); |
