diff options
| author | David S. Miller <davem@davemloft.net> | 2008-04-07 00:25:20 -0700 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2008-04-18 18:53:27 -0700 |
| commit | d08242303cea836fd2587d776e5c743b3e02ae2a (patch) | |
| tree | 383ca3830855ae4296896e0e11e10daae66742c3 | |
| parent | 1814e31332384ae44b9ed55f0393faacfa52f02a (diff) | |
SPARC64: Fix atomic backoff limit.
Upstream commit: 4cfea5a7dfcc2766251e50ca30271a782d5004ad
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>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
| -rw-r--r-- | include/asm-sparc64/backoff.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-sparc64/backoff.h b/include/asm-sparc64/backoff.h index dadd6c385c6..fa1fdf67e35 100644 --- a/include/asm-sparc64/backoff.h +++ b/include/asm-sparc64/backoff.h @@ -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; \ |