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authorMike Kravetz <mjkravetz@verizon.net>2006-05-01 12:16:09 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-05-01 18:17:46 -0700
commit46a66eecdf7bc12562ecb492297447ed0e1ecf59 (patch)
treeb758b51763c2365130a2a58547fa0bc30d71cdc8 /mm
parent[PATCH] Altix: correct ioc3 port order (diff)
downloadlinux-dev-46a66eecdf7bc12562ecb492297447ed0e1ecf59.tar.xz
linux-dev-46a66eecdf7bc12562ecb492297447ed0e1ecf59.zip
[PATCH] sparsemem interaction with memory add bug fixes
This patch fixes two bugs with the way sparsemem interacts with memory add. They are: - memory leak if memmap for section already exists - calling alloc_bootmem_node() after boot These bugs were discovered and a first cut at the fixes were provided by Arnd Bergmann <arnd@arndb.de> and Joel Schopp <jschopp@us.ibm.com>. Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> Signed-off-by: Joel Schopp <jschopp@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/sparse.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/mm/sparse.c b/mm/sparse.c
index 0a51f36ba3a1..d7c32de99ee8 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -32,7 +32,10 @@ static struct mem_section *sparse_index_alloc(int nid)
unsigned long array_size = SECTIONS_PER_ROOT *
sizeof(struct mem_section);
- section = alloc_bootmem_node(NODE_DATA(nid), array_size);
+ if (system_state == SYSTEM_RUNNING)
+ section = kmalloc_node(array_size, GFP_KERNEL, nid);
+ else
+ section = alloc_bootmem_node(NODE_DATA(nid), array_size);
if (section)
memset(section, 0, array_size);
@@ -281,9 +284,9 @@ int sparse_add_one_section(struct zone *zone, unsigned long start_pfn,
ret = sparse_init_one_section(ms, section_nr, memmap);
- if (ret <= 0)
- __kfree_section_memmap(memmap, nr_pages);
out:
pgdat_resize_unlock(pgdat, &flags);
+ if (ret <= 0)
+ __kfree_section_memmap(memmap, nr_pages);
return ret;
}