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mm/vmalloc.c: report more vmalloc failures 

Some vmalloc failure paths do not report OOM conditions.

Add warn_alloc_failed, which also does a dump_stack, to those failure
paths.

This allows more site specific vmalloc failure logging message printks to
be removed.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2011-10-31 17:08:48 -07:00 committed by Linus Torvalds
parent f0dfcde099
commit de7d2b567d
1 changed files with 8 additions and 3 deletions
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11
mm/vmalloc.c
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@ -1625,13 +1625,12 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
size = PAGE_ALIGN(size); size = PAGE_ALIGN(size);
if (!size || (size >> PAGE_SHIFT) > totalram_pages) if (!size || (size >> PAGE_SHIFT) > totalram_pages)
return NULL; goto fail;
area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNLIST, area = __get_vm_area_node(size, align, VM_ALLOC | VM_UNLIST,
start, end, node, gfp_mask, caller); start, end, node, gfp_mask, caller);
if (!area) if (!area)
return NULL; goto fail;
addr = __vmalloc_area_node(area, gfp_mask, prot, node, caller); addr = __vmalloc_area_node(area, gfp_mask, prot, node, caller);
@ -1649,6 +1648,12 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
kmemleak_alloc(addr, real_size, 3, gfp_mask); kmemleak_alloc(addr, real_size, 3, gfp_mask);
return addr; return addr;
fail:
warn_alloc_failed(gfp_mask, 0,
"vmalloc: allocation failure: %lu bytes\n",
real_size);
return NULL;
} }
/** /**