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authorAlexey Dobriyan <adobriyan@gmail.com>2018-02-07 02:39:37 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-07 05:32:45 +0300
commit4de373a12f3c551f9263f37d609f264b440adfec (patch)
treeb7d06e3340b02a1aa204f7fdae8a08e403265d28 /include/linux/cpumask.h
parent667b60946ef9b8375085c7b225229923c6f87308 (diff)
downloadlinux-4de373a12f3c551f9263f37d609f264b440adfec.tar.xz
cpumask: make cpumask_size() return "unsigned int"
CPUmasks are never big enough to warrant 64-bit code. Space savings: add/remove: 0/0 grow/shrink: 1/4 up/down: 3/-17 (-14) Function old new delta sched_init_numa 1530 1533 +3 compat_sys_sched_setaffinity 160 159 -1 sys_sched_getaffinity 197 195 -2 sys_sched_setaffinity 183 176 -7 compat_sys_sched_getaffinity 179 172 -7 Link: http://lkml.kernel.org/r/20171204165531.GA8221@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/cpumask.h')
-rw-r--r--include/linux/cpumask.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 75b565194437..d4a2a7dcd72d 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -640,7 +640,7 @@ static inline int cpulist_parse(const char *buf, struct cpumask *dstp)
/**
* cpumask_size - size to allocate for a 'struct cpumask' in bytes
*/
-static inline size_t cpumask_size(void)
+static inline unsigned int cpumask_size(void)
{
return BITS_TO_LONGS(nr_cpumask_bits) * sizeof(long);
}