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Subject[PATCH 01/14] x86-32, NUMA: Fix failure condition check in alloc_remap()
Date
node_remap_{start|end}_vaddr[] describe [start, end) ranges; however,
alloc_remap() incorrectly failed when the current allocation + size
equaled the end but it should fail only when it goes over. Fix it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
---
arch/x86/mm/numa_32.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index bde3906..84aac47 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -200,7 +200,7 @@ void *alloc_remap(int nid, unsigned long size)

size = ALIGN(size, L1_CACHE_BYTES);

- if (!allocation || (allocation + size) >= node_remap_end_vaddr[nid])
+ if (!allocation || (allocation + size) > node_remap_end_vaddr[nid])
return NULL;

node_remap_alloc_vaddr[nid] += size;
--
1.7.1


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