[PATCH] repair bootmem memory leak

[William Lee Irwin III]

While developing my fresh bootmem, the testing I did to ensure there
were no memory leaks discovered a caller leaking memory:

diff -urN linux-virgin/arch/i386/kernel/setup.c linux/arch/i386/kernel/setup.c
--- linux-virgin/arch/i386/kernel/setup.c	Fri Oct  5 14:45:00 2001
+++ linux/arch/i386/kernel/setup.c	Sat Oct 27 12:57:39 2001
@@ -926,7 +926,7 @@
 	 * bootmem allocator with an invalid RAM area.
 	 */
 	reserve_bootmem(HIGH_MEMORY, (PFN_PHYS(start_pfn) +
-			 bootmap_size + PAGE_SIZE-1) - (HIGH_MEMORY));
+			 		bootmap_size) - (HIGH_MEMORY));
 
 	/*
 	 * reserve physical page 0 - it's a special BIOS page on many boxes,

reserve_boootmem_core() already ensures that the endpoint of the
interval to reserve is rounded up to a page boundary, and so this
(demonstrably) leaks a page whenever
	PFN_PHYS(start_pfn) + bootmap_size + PAGE_SIZE -1
is not page-aligned.

Cheers,
Bill
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