diff options
| author | Patrick McHardy <kaber@trash.net> | 2011-01-14 14:12:37 +0100 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2011-01-14 14:12:37 +0100 |
| commit | 0134e89c7bcc9fde1da962c82a120691e185619f (patch) | |
| tree | 3e03335cf001019a2687d161e956de4f73379984 /arch/s390/lib/delay.c | |
| parent | c7066f70d9610df0b9406cc635fc09e86136e714 (diff) | |
| parent | 6faee60a4e82075853a437831768cc9e2e563e4e (diff) | |
Merge branch 'master' of git://1984.lsi.us.es/net-next-2.6
Conflicts:
net/ipv4/route.c
Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'arch/s390/lib/delay.c')
| -rw-r--r-- | arch/s390/lib/delay.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c index 752b362bf65..0f53110e1d0 100644 --- a/arch/s390/lib/delay.c +++ b/arch/s390/lib/delay.c @@ -29,21 +29,24 @@ static void __udelay_disabled(unsigned long long usecs) { unsigned long mask, cr0, cr0_saved; u64 clock_saved; + u64 end; + mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT; + end = get_clock() + (usecs << 12); clock_saved = local_tick_disable(); - set_clock_comparator(get_clock() + (usecs << 12)); __ctl_store(cr0_saved, 0, 0); cr0 = (cr0_saved & 0xffff00e0) | 0x00000800; __ctl_load(cr0 , 0, 0); - mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT; lockdep_off(); - trace_hardirqs_on(); - __load_psw_mask(mask); - local_irq_disable(); + do { + set_clock_comparator(end); + trace_hardirqs_on(); + __load_psw_mask(mask); + local_irq_disable(); + } while (get_clock() < end); lockdep_on(); __ctl_load(cr0_saved, 0, 0); local_tick_enable(clock_saved); - set_clock_comparator(S390_lowcore.clock_comparator); } static void __udelay_enabled(unsigned long long usecs) @@ -66,7 +69,6 @@ static void __udelay_enabled(unsigned long long usecs) if (clock_saved) local_tick_enable(clock_saved); } while (get_clock() < end); - set_clock_comparator(S390_lowcore.clock_comparator); } /* |