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authorV3n3RiX <venerix@redcorelinux.org>2019-05-18 00:37:02 +0100
committerV3n3RiX <venerix@redcorelinux.org>2019-05-18 00:37:02 +0100
commit4b2cc4a30a78eda5b747932226cf16edd8c125b6 (patch)
treeb7412a5ac3b7911e1590dd81059ca0277725b178 /sys-kernel/linux-image-redcore-lts/files/4.14-0011-Make-hrtimer-granularity-and-minimum-hrtimeout-confi.patch
parentbe8120dc323a345ad0eb2d0f25d62ea8f824d74c (diff)
sys-kernel/linux-{image,sources}-redcore-lts : drop 4.14
Diffstat (limited to 'sys-kernel/linux-image-redcore-lts/files/4.14-0011-Make-hrtimer-granularity-and-minimum-hrtimeout-confi.patch')
-rw-r--r--sys-kernel/linux-image-redcore-lts/files/4.14-0011-Make-hrtimer-granularity-and-minimum-hrtimeout-confi.patch136
1 files changed, 0 insertions, 136 deletions
diff --git a/sys-kernel/linux-image-redcore-lts/files/4.14-0011-Make-hrtimer-granularity-and-minimum-hrtimeout-confi.patch b/sys-kernel/linux-image-redcore-lts/files/4.14-0011-Make-hrtimer-granularity-and-minimum-hrtimeout-confi.patch
deleted file mode 100644
index 5ac20300..00000000
--- a/sys-kernel/linux-image-redcore-lts/files/4.14-0011-Make-hrtimer-granularity-and-minimum-hrtimeout-confi.patch
+++ /dev/null
@@ -1,136 +0,0 @@
-diff -Nur a/kernel/sysctl.c b/kernel/sysctl.c
---- a/kernel/sysctl.c 2018-11-03 17:03:07.433069521 +0000
-+++ b/kernel/sysctl.c 2018-11-03 17:02:11.020267246 +0000
-@@ -141,7 +141,9 @@
- extern int sched_iso_cpu;
- extern int sched_yield_type;
- #endif
--#ifdef CONFIG_PRINTK
-+extern int hrtimer_granularity_us;
-+extern int hrtimeout_min_us;
-+#if defined(CONFIG_PRINTK) || defined(CONFIG_SCHED_MUQSS)
- static int ten_thousand __read_only = 10000;
- #endif
- #ifdef CONFIG_PERF_EVENTS
-@@ -1119,6 +1121,24 @@
- .extra2 = &two,
- },
- #endif
-+ {
-+ .procname = "hrtimer_granularity_us",
-+ .data = &hrtimer_granularity_us,
-+ .maxlen = sizeof(int),
-+ .mode = 0644,
-+ .proc_handler = &proc_dointvec_minmax,
-+ .extra1 = &one,
-+ .extra2 = &ten_thousand,
-+ },
-+ {
-+ .procname = "hrtimeout_min_us",
-+ .data = &hrtimeout_min_us,
-+ .maxlen = sizeof(int),
-+ .mode = 0644,
-+ .proc_handler = &proc_dointvec_minmax,
-+ .extra1 = &one,
-+ .extra2 = &ten_thousand,
-+ },
- #if defined(CONFIG_S390) && defined(CONFIG_SMP)
- {
- .procname = "spin_retry",
-diff -Nur a/kernel/time/clockevents.c b/kernel/time/clockevents.c
---- a/kernel/time/clockevents.c 2018-11-03 17:03:07.433069521 +0000
-+++ b/kernel/time/clockevents.c 2018-11-03 16:58:17.283800909 +0000
-@@ -198,13 +198,9 @@
-
- #ifdef CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST
-
--#ifdef CONFIG_SCHED_MUQSS
-+int __read_mostly hrtimer_granularity_us = 100;
- /* Limit min_delta to 100us */
--#define MIN_DELTA_LIMIT (NSEC_PER_SEC / 10000)
--#else
--/* Limit min_delta to a jiffie */
--#define MIN_DELTA_LIMIT (NSEC_PER_SEC / HZ)
--#endif
-+#define MIN_DELTA_LIMIT (hrtimer_granularity_us * NSEC_PER_USEC)
-
- /**
- * clockevents_increase_min_delta - raise minimum delta of a clock event device
-diff -Nur a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
---- a/kernel/time/hrtimer.c 2018-11-03 17:04:16.448274547 +0000
-+++ b/kernel/time/hrtimer.c 2018-11-03 16:58:17.283800909 +0000
-@@ -1803,7 +1803,7 @@
- long __sched schedule_msec_hrtimeout(long timeout)
- {
- struct hrtimer_sleeper t;
-- int delta, secs, jiffs;
-+ int delta, jiffs;
- ktime_t expires;
-
- if (!timeout) {
-@@ -1820,9 +1820,8 @@
- if (jiffs > 4 || hrtimer_resolution >= NSEC_PER_SEC / HZ || pm_freezing)
- return schedule_timeout(jiffs);
-
-- secs = timeout / 1000;
- delta = (timeout % 1000) * NSEC_PER_MSEC;
-- expires = ktime_set(secs, delta);
-+ expires = ktime_set(0, delta);
-
- hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
- hrtimer_set_expires_range_ns(&t.timer, expires, delta);
-@@ -1846,9 +1845,53 @@
-
- EXPORT_SYMBOL(schedule_msec_hrtimeout);
-
-+#define USECS_PER_SEC 1000000
-+extern int hrtimer_granularity_us;
-+
-+static inline long schedule_usec_hrtimeout(long timeout)
-+{
-+ struct hrtimer_sleeper t;
-+ ktime_t expires;
-+ int delta;
-+
-+ if (!timeout) {
-+ __set_current_state(TASK_RUNNING);
-+ return 0;
-+ }
-+
-+ if (hrtimer_resolution >= NSEC_PER_SEC / HZ)
-+ return schedule_timeout(usecs_to_jiffies(timeout));
-+
-+ if (timeout < hrtimer_granularity_us)
-+ timeout = hrtimer_granularity_us;
-+ delta = (timeout % USECS_PER_SEC) * NSEC_PER_USEC;
-+ expires = ktime_set(0, delta);
-+
-+ hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-+ hrtimer_set_expires_range_ns(&t.timer, expires, delta);
-+
-+ hrtimer_init_sleeper(&t, current);
-+
-+ hrtimer_start_expires(&t.timer, HRTIMER_MODE_REL);
-+
-+ if (likely(t.task))
-+ schedule();
-+
-+ hrtimer_cancel(&t.timer);
-+ destroy_hrtimer_on_stack(&t.timer);
-+
-+ __set_current_state(TASK_RUNNING);
-+
-+ expires = hrtimer_expires_remaining(&t.timer);
-+ timeout = ktime_to_us(expires);
-+ return timeout < 0 ? 0 : timeout;
-+}
-+
-+int __read_mostly hrtimeout_min_us = 1000;
-+
- long __sched schedule_min_hrtimeout(void)
- {
-- return schedule_msec_hrtimeout(1);
-+ return usecs_to_jiffies(schedule_usec_hrtimeout(hrtimeout_min_us));
- }
-
- EXPORT_SYMBOL(schedule_min_hrtimeout);