openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

locking, mips: Fix atomics 

The patch folding the atomic ops had two silly fails in the _return
primitives.

Fixes: ef31563e95 ("locking,arch,mips: Fold atomic_ops")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Maciej W. Rozycki <macro@codesourcery.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Link: http://lkml.kernel.org/r/20140902202126.GA3190@worktop.ger.corp.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra 2014-09-02 22:21:26 +02:00 committed by Ingo Molnar
parent caa17d49f9
commit da4c54457e
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/mips/include/asm/atomic.h
View File

@ -93,7 +93,7 @@ static __inline__ int atomic_##op##_return(int i, atomic_t * v) \
" " #asm_op " %0, %1, %3 \n" \
" sc %0, %2 \n" \
" beqzl %0, 1b \n" \
" addu %0, %1, %3 \n" \
" " #asm_op " %0, %1, %3 \n" \
" .set mips0 \n" \
: "=&r" (result), "=&r" (temp), "+m" (v->counter) \
: "Ir" (i)); \
@ -111,7 +111,7 @@ static __inline__ int atomic_##op##_return(int i, atomic_t * v) \
: "Ir" (i)); \
} while (unlikely(!result)); \
\
result = temp + i; \
result = temp; result c_op i; \
} else { \
unsigned long flags; \
\
@ -387,7 +387,7 @@ static __inline__ long atomic64_##op##_return(long i, atomic64_t * v) \
: "memory"); \
} while (unlikely(!result)); \
\
result = temp + i; \
result = temp; result c_op i; \
} else { \
unsigned long flags; \
\