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| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2009-02-18 14:48:33 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-02-18 15:37:55 -0800 |
| commit | cc2559bccc72767cb446f79b071d96c30c26439b (patch) | |
| tree | aacdeee5368e0eef72ed1d7a7cbd7e6ee4837941 /arch/ia64/mm | |
| parent | f2dbcfa738368c8a40d4a5f0b65dc9879577cb21 (diff) | |
| download | linux-3.10-cc2559bccc72767cb446f79b071d96c30c26439b.tar.gz linux-3.10-cc2559bccc72767cb446f79b071d96c30c26439b.tar.bz2 linux-3.10-cc2559bccc72767cb446f79b071d96c30c26439b.zip | |
mm: fix memmap init for handling memory hole
Now, early_pfn_in_nid(PFN, NID) may returns false if PFN is a hole.
and memmap initialization was not done. This was a trouble for
sparc boot.
To fix this, the PFN should be initialized and marked as PG_reserved.
This patch changes early_pfn_in_nid() return true if PFN is a hole.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reported-by: David Miller <davem@davemlloft.net>
Tested-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: <stable@kernel.org> [2.6.25.x, 2.6.26.x, 2.6.27.x, 2.6.28.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/ia64/mm')
| -rw-r--r-- | arch/ia64/mm/numa.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c index 5061c3fb679..3efea7d0a35 100644 --- a/arch/ia64/mm/numa.c +++ b/arch/ia64/mm/numa.c @@ -70,7 +70,7 @@ int __meminit __early_pfn_to_nid(unsigned long pfn) return node_memblk[i].nid; } - return 0; + return -1; } #ifdef CONFIG_MEMORY_HOTPLUG |