diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2015-03-25 12:07:31 +0530 |
|---|---|---|
| committer | Olav Haugan <ohaugan@codeaurora.org> | 2016-09-20 17:47:12 -0700 |
| commit | f461d408acb522ec6db8ae34a49c2dbbd6092ab1 (patch) | |
| tree | 750b410227fd532cbd693b42a079c9ccee5c8fd6 /include/linux/hrtimer.h | |
| parent | d0cea65e27b7541234d61b70017ec6cc3cfe3eec (diff) | |
hrtimer: create hrtimer_quiesce_cpu() to isolate CPU from hrtimers
To isolate CPUs (isolate from hrtimers) from sysfs using cpusets, we need some
support from the hrtimer core. i.e. A routine hrtimer_quiesce_cpu() which would
migrate away all the unpinned hrtimers, but shouldn't touch the pinned ones.
This patch creates this routine.
Change-Id: I51259ea41e3bd5cdba50b718201a6840174a7224
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[forward port to 3.18]
Signed-off-by: Santosh Shukla <santosh.shukla@linaro.org>
[ohaugan@codeaurora.org: Port to 4.4]
Git-commit: d4d50a0ddc35e58ee95137ba4d14e74fea8b682f
Git-repo: git://git.linaro.org/people/mike.holmes/santosh.shukla/lng-isol.git
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
Diffstat (limited to 'include/linux/hrtimer.h')
| -rw-r--r-- | include/linux/hrtimer.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 07766186ee89..952adcacc4cf 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -360,6 +360,9 @@ DECLARE_PER_CPU(struct tick_device, tick_cpu_device); /* Exported timer functions: */ +/* To be used from cpusets, only */ +extern void hrtimer_quiesce_cpu(void *cpup); + /* Initialize timers: */ extern void hrtimer_init(struct hrtimer *timer, clockid_t which_clock, enum hrtimer_mode mode); |