kernel/mm/sparse.c, branch linux-2.6.30.y

mm: mminit_validate_memmodel_limits(): remove redundant test

2009-04-01T15:59:11Z

In case if start_pfn overlap the upper bound no need to test end_pfn again since we have it already trimmed. Signed-off-by: Cyrill Gorcunov Reviewed-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

meminit section warnings

2008-11-30T18:03:35Z

Signed-off-by: Al Viro Signed-off-by: Linus Torvalds

mm/sparse.c: removed duplicated include

2008-08-12T23:07:30Z

Signed-off-by: Huang Weiyi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

make mm/sparse.c: make a function static

2008-07-26T19:00:12Z

This patch makes the needlessly global sparse_early_mem_map_alloc() static. Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

memory hotplug: allocate usemap on the section with pgdat

2008-07-24T17:47:21Z

Usemaps are allocated on the section which has pgdat by this. Because usemap size is very small, many other sections usemaps are allocated on only one page. If a section has usemap, it can't be removed until removing other sections. This dependency is not desirable for memory removing. Pgdat has similar feature. When a section has pgdat area, it must be the last section for removing on the node. So, if section A has pgdat and section B has usemap for section A, Both sections can't be removed due to dependency each other. To solve this issue, this patch collects usemap on same section with pgdat as much as possible. If other sections doesn't have any dependency, this section will be able to be removed finally. Signed-off-by: Yasunori Goto Cc: Mel Gorman Cc: Andy Whitcroft Cc: David Miller Cc: Badari Pulavarty Cc: Heiko Carstens Cc: Hiroyuki KAMEZAWA Cc: Tony Breeds Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: make defensive checks around PFN values registered for memory usage

2008-07-24T17:47:13Z

There are a number of different views to how much memory is currently active. There is the arch-independent zone-sizing view, the bootmem allocator and memory models view. Architectures register this information at different times and is not necessarily in sync particularly with respect to some SPARSEMEM limitations. This patch introduces mminit_validate_memmodel_limits() which is able to validate and correct PFN ranges with respect to the memory model. It is only SPARSEMEM that currently validates itself. Signed-off-by: Mel Gorman Cc: Christoph Lameter Cc: Andy Whitcroft Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

revert "memory hotplug: allocate usemap on the section with pgdat"

2008-04-30T15:29:55Z

This: commit 86f6dae1377523689bd8468fed2f2dd180fc0560 Author: Yasunori Goto Date: Mon Apr 28 02:13:33 2008 -0700 memory hotplug: allocate usemap on the section with pgdat Usemaps are allocated on the section which has pgdat by this. Because usemap size is very small, many other sections usemaps are allocated on only one page. If a section has usemap, it can't be removed until removing other sections. This dependency is not desirable for memory removing. Pgdat has similar feature. When a section has pgdat area, it must be the last section for removing on the node. So, if section A has pgdat and section B has usemap for section A, Both sections can't be removed due to dependency each other. To solve this issue, this patch collects usemap on same section with pgdat. If other sections doesn't have any dependency, this section will be able to be removed finally. Signed-off-by: Yasunori Goto Cc: Badari Pulavarty Cc: Yinghai Lu Cc: Yasunori Goto Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds broke davem's sparc64 bootup. Revert it while we work out what went wrong. Cc: Yasunori Goto Cc: Badari Pulavarty Cc: Yinghai Lu Cc: "David S. Miller" Cc: Heiko Carstens Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: remove remaining FUNCTION occurrences

2008-04-30T15:29:53Z

__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

memory hotplug: free memmaps allocated by bootmem

2008-04-28T15:58:26Z

This patch is to free memmaps which is allocated by bootmem. Freeing usemap is not necessary. The pages of usemap may be necessary for other sections. If removing section is last section on the node, its section is the final user of usemap page. (usemaps are allocated on its section by previous patch.) But it shouldn't be freed too, because the section must be logical offline state which all pages are isolated against page allocater. If it is freed, page alloctor may use it which will be removed physically soon. It will be disaster. So, this patch keeps it as it is. Signed-off-by: Yasunori Goto Cc: Badari Pulavarty Cc: Yinghai Lu Cc: Yasunori Goto Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

memory hotplug: allocate usemap on the section with pgdat

2008-04-28T15:58:25Z

Usemaps are allocated on the section which has pgdat by this. Because usemap size is very small, many other sections usemaps are allocated on only one page. If a section has usemap, it can't be removed until removing other sections. This dependency is not desirable for memory removing. Pgdat has similar feature. When a section has pgdat area, it must be the last section for removing on the node. So, if section A has pgdat and section B has usemap for section A, Both sections can't be removed due to dependency each other. To solve this issue, this patch collects usemap on same section with pgdat. If other sections doesn't have any dependency, this section will be able to be removed finally. Signed-off-by: Yasunori Goto Cc: Badari Pulavarty Cc: Yinghai Lu Cc: Yasunori Goto Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

kernel/mm/sparse.c, branch linux-2.6.30.y

mm: mminit_validate_memmodel_limits(): remove redundant test

meminit section warnings

mm/sparse.c: removed duplicated include

make mm/sparse.c: make a function static

memory hotplug: allocate usemap on the section with pgdat

mm: make defensive checks around PFN values registered for memory usage

revert "memory hotplug: allocate usemap on the section with pgdat"

mm: remove remaining __FUNCTION__ occurrences

memory hotplug: free memmaps allocated by bootmem

memory hotplug: allocate usemap on the section with pgdat

mm: remove remaining FUNCTION occurrences