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author | Grant Likely <grant.likely@secretlab.ca> | 2011-03-17 13:46:58 -0600 |
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committer | Grant Likely <grant.likely@secretlab.ca> | 2011-03-17 13:48:06 -0600 |
commit | 2dd22997679a88874c131f6e6ffb963e6d43b3a6 (patch) | |
tree | bfe1707dda7e755b8b550c6796e2649813bcfbb9 /kernel/time/jiffies.c | |
parent | 36885ff0e6563687e6152da6d311abbf83c0198f (diff) | |
parent | 7b7adc4a016a1decb806eb71ecab98721fa7f146 (diff) |
Merge remote-tracking branch 'origin' into spi/next
Pull in Linus' tree to pick up changes required for the langwell gpio fixes
Diffstat (limited to 'kernel/time/jiffies.c')
-rw-r--r-- | kernel/time/jiffies.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c index 5404a845690..b2fa506667c 100644 --- a/kernel/time/jiffies.c +++ b/kernel/time/jiffies.c @@ -22,8 +22,11 @@ ************************************************************************/ #include <linux/clocksource.h> #include <linux/jiffies.h> +#include <linux/module.h> #include <linux/init.h> +#include "tick-internal.h" + /* The Jiffies based clocksource is the lowest common * denominator clock source which should function on * all systems. It has the same coarse resolution as @@ -64,6 +67,23 @@ struct clocksource clocksource_jiffies = { .shift = JIFFIES_SHIFT, }; +#if (BITS_PER_LONG < 64) +u64 get_jiffies_64(void) +{ + unsigned long seq; + u64 ret; + + do { + seq = read_seqbegin(&xtime_lock); + ret = jiffies_64; + } while (read_seqretry(&xtime_lock, seq)); + return ret; +} +EXPORT_SYMBOL(get_jiffies_64); +#endif + +EXPORT_SYMBOL(jiffies); + static int __init init_jiffies_clocksource(void) { return clocksource_register(&clocksource_jiffies); |