diff options
author | Johannes Weiner <hannes@cmpxchg.org> | 2012-05-29 15:06:35 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-29 16:22:22 -0700 |
commit | ba539868331874da02017e8dda8ed5b86af6d21a (patch) | |
tree | 27056839b40648fe3e9d121411e4745417587e89 /mm | |
parent | 2c478eae96501163c5c5d5f682bba4d34a7ea1d4 (diff) | |
download | op-kernel-dev-ba539868331874da02017e8dda8ed5b86af6d21a.zip op-kernel-dev-ba539868331874da02017e8dda8ed5b86af6d21a.tar.gz |
mm: nobootmem: unify allocation policy of (non-)panicking node allocations
While the panicking node-specific allocation function tries to satisfy
node+goal, goal, node, anywhere, the non-panicking function still does
node+goal, goal, anywhere.
Make it simpler: define the panicking version in terms of the non-panicking
one, like the node-agnostic interface, so they always behave the same way
apart from how to deal with allocation failure.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r-- | mm/nobootmem.c | 106 |
1 files changed, 54 insertions, 52 deletions
diff --git a/mm/nobootmem.c b/mm/nobootmem.c index cca7620..9f40481 100644 --- a/mm/nobootmem.c +++ b/mm/nobootmem.c @@ -274,6 +274,57 @@ void * __init __alloc_bootmem(unsigned long size, unsigned long align, return ___alloc_bootmem(size, align, goal, limit); } +static void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat, + unsigned long size, + unsigned long align, + unsigned long goal, + unsigned long limit) +{ + void *ptr; + +again: + ptr = __alloc_memory_core_early(pgdat->node_id, size, align, + goal, limit); + if (ptr) + return ptr; + + ptr = __alloc_memory_core_early(MAX_NUMNODES, size, align, + goal, limit); + if (ptr) + return ptr; + + if (goal) { + goal = 0; + goto again; + } + + return NULL; +} + +void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size, + unsigned long align, unsigned long goal) +{ + if (WARN_ON_ONCE(slab_is_available())) + return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id); + + return ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, 0); +} + +void * __init ___alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, + unsigned long align, unsigned long goal, + unsigned long limit) +{ + void *ptr; + + ptr = ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, limit); + if (ptr) + return ptr; + + printk(KERN_ALERT "bootmem alloc of %lu bytes failed!\n", size); + panic("Out of memory"); + return NULL; +} + /** * __alloc_bootmem_node - allocate boot memory from a specific node * @pgdat: node to allocate from @@ -292,30 +343,10 @@ void * __init __alloc_bootmem(unsigned long size, unsigned long align, void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal) { - void *ptr; - if (WARN_ON_ONCE(slab_is_available())) return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id); -again: - ptr = __alloc_memory_core_early(pgdat->node_id, size, align, - goal, -1ULL); - if (ptr) - return ptr; - - ptr = __alloc_memory_core_early(MAX_NUMNODES, size, align, - goal, -1ULL); - if (ptr) - return ptr; - - if (goal) { - goal = 0; - goto again; - } - - printk(KERN_ALERT "bootmem alloc of %lu bytes failed!\n", size); - panic("Out of memory"); - return NULL; + return ___alloc_bootmem_node(pgdat, size, align, goal, 0); } void * __init __alloc_bootmem_node_high(pg_data_t *pgdat, unsigned long size, @@ -346,22 +377,6 @@ void * __init alloc_bootmem_section(unsigned long size, } #endif -void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size, - unsigned long align, unsigned long goal) -{ - void *ptr; - - if (WARN_ON_ONCE(slab_is_available())) - return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id); - - ptr = __alloc_memory_core_early(pgdat->node_id, size, align, - goal, -1ULL); - if (ptr) - return ptr; - - return __alloc_bootmem_nopanic(size, align, goal); -} - #ifndef ARCH_LOW_ADDRESS_LIMIT #define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL #endif @@ -403,22 +418,9 @@ void * __init __alloc_bootmem_low(unsigned long size, unsigned long align, void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal) { - void *ptr; - if (WARN_ON_ONCE(slab_is_available())) return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id); - ptr = __alloc_memory_core_early(pgdat->node_id, size, align, - goal, ARCH_LOW_ADDRESS_LIMIT); - if (ptr) - return ptr; - - ptr = __alloc_memory_core_early(MAX_NUMNODES, size, align, - goal, ARCH_LOW_ADDRESS_LIMIT); - if (ptr) - return ptr; - - printk(KERN_ALERT "bootmem alloc of %lu bytes failed!\n", size); - panic("Out of memory"); - return NULL; + return ___alloc_bootmem_node(pgdat, size, align, goal, + ARCH_LOW_ADDRESS_LIMIT); } |