Disable pristine-tar option in gbp.conf, since there is no pristine-tar branch.

[bcachefs-tools-debian] / linux / sched.c

diff --git a/linux/sched.c b/linux/sched.c
index de6eb1428ebcf038a30a44c3faa88d6cb8c49584..1c7198d279bc9f534c946f2f56b65011a88ff452 100644 (file)
--- a/linux/sched.c
+++ b/linux/sched.c
@@ -1,13 +1,15 @@
 
-#include <linux/futex.h>
+#include <stdio.h>
 #include <string.h>
 #include <sys/mman.h>
+#include <linux/futex.h>
+
+/* hack for mips: */
+#define CONFIG_RCU_HAVE_FUTEX 1
+#include <urcu/futex.h>
 
-#include <linux/math64.h>
-#include <linux/printk.h>
 #include <linux/rcupdate.h>
 #include <linux/sched.h>
-#include <linux/slab.h>
 #include <linux/timer.h>
 
 __thread struct task_struct *current;
@@ -35,7 +37,7 @@ void schedule(void)
 
        rcu_quiescent_state();
 
-       while ((v = current->state) != TASK_RUNNING)
+       while ((v = READ_ONCE(current->state)) != TASK_RUNNING)
                futex(&current->state, FUTEX_WAIT|FUTEX_PRIVATE_FLAG,
                      v, NULL, NULL, 0);
 }
@@ -79,7 +81,7 @@ long schedule_timeout(long timeout)
                 * that will tell you if something is gone wrong and where.
                 */
                if (timeout < 0) {
-                       printk(KERN_ERR "schedule_timeout: wrong timeout "
+                       fprintf(stderr, "schedule_timeout: wrong timeout "
                                "value %lx\n", timeout);
                        current->state = TASK_RUNNING;
                        goto out;
@@ -99,79 +101,11 @@ out:
        return timeout < 0 ? 0 : timeout;
 }
 
-unsigned long __msecs_to_jiffies(const unsigned int m)
-{
-       /*
-        * Negative value, means infinite timeout:
-        */
-       if ((int)m < 0)
-               return MAX_JIFFY_OFFSET;
-       return _msecs_to_jiffies(m);
-}
-
-u64 nsecs_to_jiffies64(u64 n)
-{
-#if (NSEC_PER_SEC % HZ) == 0
-       /* Common case, HZ = 100, 128, 200, 250, 256, 500, 512, 1000 etc. */
-       return div_u64(n, NSEC_PER_SEC / HZ);
-#elif (HZ % 512) == 0
-       /* overflow after 292 years if HZ = 1024 */
-       return div_u64(n * HZ / 512, NSEC_PER_SEC / 512);
-#else
-       /*
-        * Generic case - optimized for cases where HZ is a multiple of 3.
-        * overflow after 64.99 years, exact for HZ = 60, 72, 90, 120 etc.
-        */
-       return div_u64(n * 9, (9ull * NSEC_PER_SEC + HZ / 2) / HZ);
-#endif
-}
-
-unsigned long nsecs_to_jiffies(u64 n)
-{
-       return (unsigned long)nsecs_to_jiffies64(n);
-}
-
-unsigned int jiffies_to_msecs(const unsigned long j)
-{
-#if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ)
-       return (MSEC_PER_SEC / HZ) * j;
-#elif HZ > MSEC_PER_SEC && !(HZ % MSEC_PER_SEC)
-       return (j + (HZ / MSEC_PER_SEC) - 1)/(HZ / MSEC_PER_SEC);
-#else
-# if BITS_PER_LONG == 32
-       return (HZ_TO_MSEC_MUL32 * j) >> HZ_TO_MSEC_SHR32;
-# else
-       return (j * HZ_TO_MSEC_NUM) / HZ_TO_MSEC_DEN;
-# endif
-#endif
-}
-
-unsigned int jiffies_to_usecs(const unsigned long j)
-{
-       /*
-        * Hz usually doesn't go much further MSEC_PER_SEC.
-        * jiffies_to_usecs() and usecs_to_jiffies() depend on that.
-        */
-       BUILD_BUG_ON(HZ > USEC_PER_SEC);
-
-#if !(USEC_PER_SEC % HZ)
-       return (USEC_PER_SEC / HZ) * j;
-#else
-# if BITS_PER_LONG == 32
-       return (HZ_TO_USEC_MUL32 * j) >> HZ_TO_USEC_SHR32;
-# else
-       return (j * HZ_TO_USEC_NUM) / HZ_TO_USEC_DEN;
-# endif
-#endif
-}
-
 __attribute__((constructor(101)))
 static void sched_init(void)
 {
        struct task_struct *p = malloc(sizeof(*p));
 
-       mlockall(MCL_CURRENT|MCL_FUTURE);
-
        memset(p, 0, sizeof(*p));
 
        p->state        = TASK_RUNNING;
@@ -184,7 +118,7 @@ static void sched_init(void)
        rcu_register_thread();
 }
 
-#ifndef __NR_getrandom
+#ifndef SYS_getrandom
 #include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/types.h>