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Commit f7c00338 authored by David S. Miller's avatar David S. Miller
Browse files

[SPARC64]: Fix loop termination in mark_kpte_bitmap() 



If we were aligned, but didn't have at least 256MB left
to process, we would loop forever.

Thanks to fabbione for the report and testing the fix.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 74ae9987

arch/sparc64/mm/init.c

+4 −1
Original line number Diff line number Diff line
@@ -973,12 +973,15 @@ static void __init mark_kpte_bitmap(unsigned long start, unsigned long end) 
	while (start < end) {

		long remains;



		remains = end - start;

		if (remains < size_256MB)

			break;



		if (start & mask_256MB) {

			start = (start + size_256MB) & ~mask_256MB;

			continue;

		}



		remains = end - start;

		while (remains >= size_256MB) {

			unsigned long index = start >> shift_256MB;