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| author | Ingo Molnar <mingo@kernel.org> | 2016-09-05 12:09:59 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-09-05 12:09:59 +0200 |
| commit | 2cc538412a1ca103923ec400a339a5b3833e0280 (patch) | |
| tree | c141b83e1da736c3d069ed491816d0096e1b532a /kernel/time/timekeeping_debug.c | |
| parent | 36e674a05164cdbb9d4a5b1b0b279fabae6c13bd (diff) | |
| parent | 58763148758057ffc447bf990321d3ea86d199a0 (diff) | |
| download | linux-2cc538412a1ca103923ec400a339a5b3833e0280.tar.gz linux-2cc538412a1ca103923ec400a339a5b3833e0280.tar.bz2 linux-2cc538412a1ca103923ec400a339a5b3833e0280.zip | |
Merge branch 'perf/urgent' into perf/core, to pick up fixed and resolve conflicts
Conflicts:
kernel/events/core.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/time/timekeeping_debug.c')
| -rw-r--r-- | kernel/time/timekeeping_debug.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/kernel/time/timekeeping_debug.c b/kernel/time/timekeeping_debug.c index f6bd65236712..107310a6f36f 100644 --- a/kernel/time/timekeeping_debug.c +++ b/kernel/time/timekeeping_debug.c @@ -23,7 +23,9 @@ #include "timekeeping_internal.h" -static unsigned int sleep_time_bin[32] = {0}; +#define NUM_BINS 32 + +static unsigned int sleep_time_bin[NUM_BINS] = {0}; static int tk_debug_show_sleep_time(struct seq_file *s, void *data) { @@ -69,6 +71,9 @@ late_initcall(tk_debug_sleep_time_init); void tk_debug_account_sleep_time(struct timespec64 *t) { - sleep_time_bin[fls(t->tv_sec)]++; + /* Cap bin index so we don't overflow the array */ + int bin = min(fls(t->tv_sec), NUM_BINS-1); + + sleep_time_bin[bin]++; } |