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

..  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 <jbeulich@novell.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 5 insertions, 1 deletions

diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 652470b687c9..95837bfb5256 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) \
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 401d104d2bb6..af982f7cdb2a 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 {