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| author | Mike Kravetz <mjkravetz@verizon.net> | 2006-05-01 12:16:09 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-05-01 18:17:46 -0700 |
| commit | 46a66eecdf7bc12562ecb492297447ed0e1ecf59 (patch) | |
| tree | b758b51763c2365130a2a58547fa0bc30d71cdc8 | |
| parent | 2c43630fb0ff3f01c29367248ffa4a851e2c9b34 (diff) | |
| download | op-kernel-dev-46a66eecdf7bc12562ecb492297447ed0e1ecf59.zip op-kernel-dev-46a66eecdf7bc12562ecb492297447ed0e1ecf59.tar.gz | |
[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>
| -rw-r--r-- | mm/sparse.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/mm/sparse.c b/mm/sparse.c index 0a51f36..d7c32de 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; } |
