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| author | Mel Gorman <mel@csn.ul.ie> | 2007-07-17 13:03:14 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-17 19:22:59 +0200 |
| commit | ed7ed365172e27b0efe9d43cc962723c7193e34e (patch) | |
| tree | 6c22daf6908f92c64aae2b425e6383fe0ed404ac /mm/page_alloc.c | |
| parent | Allow huge page allocations to use GFP_HIGH_MOVABLE (diff) | |
| download | linux-ed7ed365172e27b0efe9d43cc962723c7193e34e.tar.xz linux-ed7ed365172e27b0efe9d43cc962723c7193e34e.zip | |
handle kernelcore=: generic
This patch adds the kernelcore= parameter for x86.
Once all patches are applied, a new command-line parameter exist and a new
sysctl. This patch adds the necessary documentation.
From: Yasunori Goto <y-goto@jp.fujitsu.com>
When "kernelcore" boot option is specified, kernel can't boot up on ia64
because of an infinite loop. In addition, the parsing code can be handled
in an architecture-independent manner.
This patch uses common code to handle the kernelcore= parameter. It is
only available to architectures that support arch-independent zone-sizing
(i.e. define CONFIG_ARCH_POPULATES_NODE_MAP). Other architectures will
ignore the boot parameter.
[bunk@stusta.de: make cmdline_parse_kernelcore() static]
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Acked-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index c3f6f851f76e..0a53728a12f5 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3416,7 +3416,7 @@ void __init free_area_init_nodes(unsigned long *max_zone_pfn) * kernelcore=size sets the amount of memory for use for allocations that * cannot be reclaimed or migrated. */ -int __init cmdline_parse_kernelcore(char *p) +static int __init cmdline_parse_kernelcore(char *p) { unsigned long long coremem; if (!p) @@ -3430,6 +3430,9 @@ int __init cmdline_parse_kernelcore(char *p) return 0; } + +early_param("kernelcore", cmdline_parse_kernelcore); + #endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ /** |