Commit 4cfea5a7 authored Mar 19, 2008 by David S. Miller

[SPARC64]: Fix atomic backoff limit.



4096 will not fit into the immediate field of a compare instruction,
in fact it will end up being -4096 causing the check to fail every
time and thus disabling backoff.

Signed-off-by: David S. Miller <davem@davemloft.net>

parent f0e98c38

include/asm-sparc64/backoff.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -12,7 +12,8 @@
		mov reg, tmp; \
		88: brnz,pt tmp, 88b; \
		sub tmp, 1, tmp; \
		cmp reg, BACKOFF_LIMIT; \
		set BACKOFF_LIMIT, tmp; \
		cmp reg, tmp; \
		bg,pn %xcc, label; \
		nop; \
		ba,pt %xcc, label; \