diff options
| author | Jens Freimann <jfrei@linux.vnet.ibm.com> | 2017-03-16 17:45:40 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2018-01-26 10:47:38 +0100 |
| commit | f3ec471a9832f8365836d70db4d52db9cc4dd6b1 (patch) | |
| tree | d4a6e6146d5bda7799222eff82b3f9a9d65336d5 /arch/s390 | |
| parent | 19114beb73f774e466d9e39b8e8b961812c9f881 (diff) | |
s390/bitops: add test_and_clear_bit_inv()
This patch adds a MSB0 bit numbering version of test_and_clear_bit().
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Michael Mueller <mimu@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/bitops.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index 31e400c1a1f3..86e5b2fdee3c 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -261,6 +261,11 @@ static inline void clear_bit_inv(unsigned long nr, volatile unsigned long *ptr) return clear_bit(nr ^ (BITS_PER_LONG - 1), ptr); } +static inline int test_and_clear_bit_inv(unsigned long nr, volatile unsigned long *ptr) +{ + return test_and_clear_bit(nr ^ (BITS_PER_LONG - 1), ptr); +} + static inline void __set_bit_inv(unsigned long nr, volatile unsigned long *ptr) { return __set_bit(nr ^ (BITS_PER_LONG - 1), ptr); |