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mm: vmalloc allocator off by one

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Fix off by one bug in the KVA allocator that can leave gaps in the address
space.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nick Piggin 2008-11-19 15:36:32 -08:00 committed by Linus Torvalds
parent f481891fdc
commit f011c2dae6
1 changed files with 1 additions and 1 deletions
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mm/vmalloc.c
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@ -362,7 +362,7 @@ static struct vmap_area *alloc_vmap_area(unsigned long size,
goto found;
}
while (addr + size >= first->va_start && addr + size <= vend) {
while (addr + size > first->va_start && addr + size <= vend) {
addr = ALIGN(first->va_end + PAGE_SIZE, align);
n = rb_next(&first->rb_node);