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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-01 10:16:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-01 10:16:10 -0700
commita21e40877ad130de837b0394583e4f68dc2ab6c5 (patch)
treec990fba6ef5f2ed464c906615c5c327f2d02b318 /include/asm-generic
parentb9b16a792241e304834f43e2a5f02e6e43576f09 (diff)
parent073d8224d299528778e90773becd1e890953443c (diff)
Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Ingo Molnar: "The main purpose is to fix a full dynticks bug related to virtualization, where steal time accounting appears to be zero in /proc/stat even after a few seconds of competing guests running busy loops in a same host CPU. It's not a regression though as it was there since the beginning. The other commits are preparatory work to fix the bug and various cleanups" * 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: arch: Remove stub cputime.h headers sched: Remove needless round trip nsecs <-> tick conversion of steal time cputime: Fix jiffies based cputime assumption on steal accounting cputime: Bring cputime -> nsecs conversion cputime: Default implementation of nsecs -> cputime conversion cputime: Fix nsecs_to_cputime() return type cast
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/cputime_jiffies.h4
-rw-r--r--include/asm-generic/cputime_nsecs.h5
2 files changed, 7 insertions, 2 deletions
diff --git a/include/asm-generic/cputime_jiffies.h b/include/asm-generic/cputime_jiffies.h
index 272ecba9f58..d5cb78f5398 100644
--- a/include/asm-generic/cputime_jiffies.h
+++ b/include/asm-generic/cputime_jiffies.h
@@ -15,8 +15,10 @@ typedef u64 __nocast cputime64_t;
/*
- * Convert nanoseconds to cputime
+ * Convert nanoseconds <-> cputime
*/
+#define cputime_to_nsecs(__ct) \
+ jiffies_to_nsecs(cputime_to_jiffies(__ct))
#define nsecs_to_cputime64(__nsec) \
jiffies64_to_cputime64(nsecs_to_jiffies64(__nsec))
#define nsecs_to_cputime(__nsec) \
diff --git a/include/asm-generic/cputime_nsecs.h b/include/asm-generic/cputime_nsecs.h
index 2c9e62c2bfd..4e817606c54 100644
--- a/include/asm-generic/cputime_nsecs.h
+++ b/include/asm-generic/cputime_nsecs.h
@@ -44,7 +44,10 @@ typedef u64 __nocast cputime64_t;
/*
* Convert cputime <-> nanoseconds
*/
-#define nsecs_to_cputime(__nsecs) ((__force u64)(__nsecs))
+#define cputime_to_nsecs(__ct) \
+ (__force u64)(__ct)
+#define nsecs_to_cputime(__nsecs) \
+ (__force cputime_t)(__nsecs)
/*