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authorJack Steiner <steiner@sgi.com>2006-03-06 15:42:50 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-06 18:40:44 -0800
commita615fa83959896f8eac76c235953fb164cd1a9b9 (patch)
tree535fa704cbb621ce8b7776e131678ab3bff92d02 /include/linux/kmalloc_sizes.h
parent78679302fe428f4f3dc853a51ee24f306010d874 (diff)
downloadlwn-a615fa83959896f8eac76c235953fb164cd1a9b9.tar.gz
lwn-a615fa83959896f8eac76c235953fb164cd1a9b9.zip
[PATCH] Increase max kmalloc size for very large systems
Systems with extemely large numbers of nodes or cpus need to kmalloc structures larger than is currently supported. This patch increases the maximum supported size for very large systems. This patch should have no effect on current systems. (akpm: why not just use alloc_pages() for sysfs_cpus?) Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/kmalloc_sizes.h')
-rw-r--r--include/linux/kmalloc_sizes.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/kmalloc_sizes.h b/include/linux/kmalloc_sizes.h
index d82d4c05c12d..bda23e00ed71 100644
--- a/include/linux/kmalloc_sizes.h
+++ b/include/linux/kmalloc_sizes.h
@@ -19,8 +19,10 @@
CACHE(32768)
CACHE(65536)
CACHE(131072)
-#ifndef CONFIG_MMU
+#if (NR_CPUS > 512) || (MAX_NUMNODES > 256) || !defined(CONFIG_MMU)
CACHE(262144)
+#endif
+#ifndef CONFIG_MMU
CACHE(524288)
CACHE(1048576)
#ifdef CONFIG_LARGE_ALLOCS