#include #include #include #include /* * For a description of the algorithm please have a look at * include/linux/reciprocal_div.h */ struct reciprocal_value reciprocal_value(u32 d) { struct reciprocal_value R; u64 m; int l; l = fls(d - 1); m = ((1ULL << 32) * ((1ULL << l) - d)); do_div(m, d); ++m; R.m = (u32)m; R.sh1 = min(l, 1); R.sh2 = max(l - 1, 0); return R; } EXPORT_SYMBOL(reciprocal_value); it' href='http:///git.distanz.ch/cgit.cgi/linux/net-next.git' title='net-next.git Git repository'/>
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-18 10:45:22 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-18 10:45:22 -0800
commit9da96f99f15169b8bf77a1f27ed6d926f82ea59f (patch)
tree1943e686fef96e694b7660c775e2194263a69801
parent0aa0313f9d576affd7747cc3f179feb097d28990 (diff)
parent31f5260a7653e6042ac28578db1c61e84f2d7898 (diff)
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar: "An Intel PMU driver hotplug fix and three 'perf probe' tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel: Handle exclusive threadid correctly on CPU hotplug perf probe: Fix to probe on gcc generated functions in modules perf probe: Add error checks to offline probe post-processing perf probe: Fix to show correct locations for events on modules
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