mm: mminit_validate_memmodel_limits(): remove redundant test
Cyrill Gorcunov [Tue, 31 Mar 2009 22:19:25 +0000 (15:19 -0700)]
In case if start_pfn overlap the upper bound no need to test end_pfn again
since we have it already trimmed.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/sparse.c

index 083f5b6..da432d9 100644 (file)
@@ -164,9 +164,7 @@ void __meminit mminit_validate_memmodel_limits(unsigned long *start_pfn,
                WARN_ON_ONCE(1);
                *start_pfn = max_sparsemem_pfn;
                *end_pfn = max_sparsemem_pfn;
-       }
-
-       if (*end_pfn > max_sparsemem_pfn) {
+       } else if (*end_pfn > max_sparsemem_pfn) {
                mminit_dprintk(MMINIT_WARNING, "pfnvalidation",
                        "End of range %lu -> %lu exceeds SPARSEMEM max %lu\n",
                        *start_pfn, *end_pfn, max_sparsemem_pfn);