Commit 0b8da654 authored Nov 05, 2007 by Heiko Carstens Committed by Martin Schwidefsky Nov 05, 2007

[S390] Fix memory detection.



Yet another patch in the countless series of memory detection fixes:
if the last area of the reported storage size is a hole the detection
loop will loop forever.
Just break chunk detection loop if its end is going to be larger than
reported storage size.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 0d2be088

arch/s390/kernel/early.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -200,11 +200,13 @@ static noinline __init void find_memory_chunks(unsigned long memsize)
		cc = __tprot(addr);
		while (cc == old_cc) {
		addr += CHUNK_INCR;
		cc = __tprot(addr);
		if (addr >= memsize)
		break;
		#ifndef CONFIG_64BIT
		if (addr == ADDR2G)
		break;
		#endif
		cc = __tprot(addr);
		}

		if (old_addr != addr &&