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| author | Jiri Kosina <jkosina@suse.cz> | 2010-12-22 18:57:02 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-12-22 18:57:02 +0100 |
| commit | 4b7bd364700d9ac8372eff48832062b936d0793b (patch) | |
| tree | 0dbf78c95456a0b02d07fcd473281f04a87e266d /arch/s390/lib/delay.c | |
| parent | c0d8768af260e2cbb4bf659ae6094a262c86b085 (diff) | |
| parent | 90a8a73c06cc32b609a880d48449d7083327e11a (diff) | |
| download | olio-linux-3.10-4b7bd364700d9ac8372eff48832062b936d0793b.tar.xz olio-linux-3.10-4b7bd364700d9ac8372eff48832062b936d0793b.zip | |
Merge branch 'master' into for-next
Conflicts:
MAINTAINERS
arch/arm/mach-omap2/pm24xx.c
drivers/scsi/bfa/bfa_fcpim.c
Needed to update to apply fixes for which the old branch was too
outdated.
Diffstat (limited to 'arch/s390/lib/delay.c')
| -rw-r--r-- | arch/s390/lib/delay.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c index 752b362bf65..7c37ec359ec 100644 --- a/arch/s390/lib/delay.c +++ b/arch/s390/lib/delay.c @@ -29,17 +29,21 @@ 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); |