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authorJ. Bruce Fields <bfields@citi.umich.edu>2010-03-04 12:03:16 -0500
committerJ. Bruce Fields <bfields@citi.umich.edu>2010-03-04 12:04:51 -0500
commit4ea41e2de5bba756858bb40f964e3490b6d1a25c (patch)
tree51a688be321dd42f80d8a0c966eb6a60408d50b3 /arch/powerpc/kernel/time.c
parent8d75da8afd068fa58b35e69c7c8c46770d9e7a98 (diff)
parent398007f863a4af2b4a5a07219c5a617f1a098115 (diff)
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs into for-2.6.34-incoming
Resolve merge conflict in fs/xfs/linux-2.6/xfs_export.c.
Diffstat (limited to 'arch/powerpc/kernel/time.c')
-rw-r--r--arch/powerpc/kernel/time.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 9ba2cc88591d..6c6093d67f30 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -903,12 +903,21 @@ static void decrementer_set_mode(enum clock_event_mode mode,
903 decrementer_set_next_event(DECREMENTER_MAX, dev); 903 decrementer_set_next_event(DECREMENTER_MAX, dev);
904} 904}
905 905
906static inline uint64_t div_sc64(unsigned long ticks, unsigned long nsec,
907 int shift)
908{
909 uint64_t tmp = ((uint64_t)ticks) << shift;
910
911 do_div(tmp, nsec);
912 return tmp;
913}
914
906static void __init setup_clockevent_multiplier(unsigned long hz) 915static void __init setup_clockevent_multiplier(unsigned long hz)
907{ 916{
908 u64 mult, shift = 32; 917 u64 mult, shift = 32;
909 918
910 while (1) { 919 while (1) {
911 mult = div_sc(hz, NSEC_PER_SEC, shift); 920 mult = div_sc64(hz, NSEC_PER_SEC, shift);
912 if (mult && (mult >> 32UL) == 0UL) 921 if (mult && (mult >> 32UL) == 0UL)
913 break; 922 break;
914 923