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| author | Mark-PK Tsai <mark-pk.tsai@mediatek.com> | 2022-03-23 16:06:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-23 19:00:34 -0700 |
| commit | 105e8c2e47788a612bbc0fc135a3c75ef25f29e4 (patch) | |
| tree | c4f914dd21be529667b66eb30bff4259dfde63bb /init/main.c | |
| parent | c882c6b1cb3105d378768aa168d2283f50b6e304 (diff) | |
| download | linux-105e8c2e47788a612bbc0fc135a3c75ef25f29e4.tar.bz2 | |
init: use ktime_us_delta() to make initcall_debug log more precise
Use ktime_us_delta() to make the initcall_debug log more precise than
right shifting the result of ktime_to_ns() by 10 bits.
Link: https://lkml.kernel.org/r/20220209053350.15771-1-mark-pk.tsai@mediatek.com
Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Tested-by: Andrew Halaney <ahalaney@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Kees Cook <keescook@chromium.org>
Cc: Valentin Schneider <valentin.schneider@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: YJ Chiang <yj.chiang@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/init/main.c b/init/main.c index 65fa2e41a9c0..c8edcc3029b1 100644 --- a/init/main.c +++ b/init/main.c @@ -1246,15 +1246,11 @@ trace_initcall_start_cb(void *data, initcall_t fn) static __init_or_module void trace_initcall_finish_cb(void *data, initcall_t fn, int ret) { - ktime_t *calltime = (ktime_t *)data; - ktime_t delta, rettime; - unsigned long long duration; + ktime_t rettime, *calltime = (ktime_t *)data; rettime = ktime_get(); - delta = ktime_sub(rettime, *calltime); - duration = (unsigned long long) ktime_to_ns(delta) >> 10; printk(KERN_DEBUG "initcall %pS returned %d after %lld usecs\n", - fn, ret, duration); + fn, ret, (unsigned long long)ktime_us_delta(rettime, *calltime)); } static ktime_t initcall_calltime; |