projects/linux·commit 74768ed8

page allocator: use no-panic variant of alloc_bootmem() in alloc_large_system_hash()

74768ed8 · Jan Beulich <[email protected]> · 2008-08-12 15:08:39 -07:00

..  since a failed allocation is being (initially) handled gracefully, and
panic()-ed upon failure explicitly in the function if retries with smaller
sizes failed.

Signed-off-by: Jan Beulich <[email protected]>
Signed-off-by: David Howells <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Commit
74768ed833344bb0f82b97cee46320a3d7f09ecd
Parents
866c3663

Changes

2 files changed · +5 −1

FileStatusAddDelContent
include/linux/bootmem.hmodified+4−0View file
mm/page_alloc.cmodified+1−1View file

include/linux/bootmem.h

View file
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 652470b..95837bf 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -97,10 +97,14 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
#ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE
#define alloc_bootmem(x) \
__alloc_bootmem(x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
+#define alloc_bootmem_nopanic(x) \
+ __alloc_bootmem_nopanic(x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
#define alloc_bootmem_low(x) \
__alloc_bootmem_low(x, SMP_CACHE_BYTES, 0)
#define alloc_bootmem_pages(x) \
__alloc_bootmem(x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
+#define alloc_bootmem_pages_nopanic(x) \
+ __alloc_bootmem_nopanic(x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
#define alloc_bootmem_low_pages(x) \
__alloc_bootmem_low(x, PAGE_SIZE, 0)
#define alloc_bootmem_node(pgdat, x) \

mm/page_alloc.c

View file
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 401d104..af982f7 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4437,7 +4437,7 @@ void *__init alloc_large_system_hash(const char *tablename,
do {
size = bucketsize << log2qty;
if (flags & HASH_EARLY)
- table = alloc_bootmem(size);
+ table = alloc_bootmem_nopanic(size);
else if (hashdist)
table = __vmalloc(size, GFP_ATOMIC, PAGE_KERNEL);
else {