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O(1) updates for 2.4.19-pre8-ac1

PATCH New Robert Love 1 participant 1 message May 8, 2002

Subsystems (7)
Arm (32-bit) MIPS s390 SuperH +3 more subsystems
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Robert Love

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PATCH 1/1 O(1) updates for 2.4.19-pre8-ac1

Alan,

Attached are the updates for O(1) resycned to 2.4.19-pre8-ac1. The previous patches still apply cleanly. If you want the chunks, they are at:

http://www.kernel.org/pub/linux/kernel/people/rml/sched/for_alan/

Specifically, these patches:

- final yield() abstractions (found some more in arch-dependent code)
- updated migration_init code, from 2.5, based on Erich Focht's work. Cleaner and simpler and works. wli (author of current implementation) signs off.
- separate notion of max RT priority from max RT priority exported to user-space.

Enjoy,

Robert Love

arch/alpha/mm/fault.c +1 -2
diff -urN linux-2.4.19-pre8-ac1/arch/alpha/mm/fault.c linux/arch/alpha/mm/fault.c
@@ -196,8 +196,7 @@
  */
 out_of_memory:
 	if (current->pid == 1) {
-		current->policy |= SCHED_YIELD;
-		schedule();
+		yield();
 		down_read(&mm->mmap_sem);
 		goto survive;
 	}
arch/arm/mm/fault-common.c +1 -2
diff -urN linux-2.4.19-pre8-ac1/arch/arm/mm/fault-common.c linux/arch/arm/mm/fault-common.c
@@ -225,8 +225,7 @@
 	 * If we are out of memory for pid1,
 	 * sleep for a while and retry
 	 */
-	tsk->policy |= SCHED_YIELD;
-	schedule();
+	yield();
 	goto survive;
 
 check_stack:
arch/ia64/mm/fault.c +1 -2
diff -urN linux-2.4.19-pre8-ac1/arch/ia64/mm/fault.c linux/arch/ia64/mm/fault.c
@@ -196,8 +196,7 @@
   out_of_memory:
 	up_read(&mm->mmap_sem);
 	if (current->pid == 1) {
-		current->policy |= SCHED_YIELD;
-		schedule();
+		yield();
 		down_read(&mm->mmap_sem);
 		goto survive;
 	}
arch/m68k/mm/fault.c +1 -2
diff -urN linux-2.4.19-pre8-ac1/arch/m68k/mm/fault.c linux/arch/m68k/mm/fault.c
@@ -181,8 +181,7 @@
 out_of_memory:
 	up_read(&mm->mmap_sem);
 	if (current->pid == 1) {
-		current->policy |= SCHED_YIELD;
-		schedule();
+		yield();
 		down_read(&mm->mmap_sem);
 		goto survive;
 	}
arch/mips/mm/fault.c +1 -2
diff -urN linux-2.4.19-pre8-ac1/arch/mips/mm/fault.c linux/arch/mips/mm/fault.c
@@ -211,8 +211,7 @@
 out_of_memory:
 	up_read(&mm->mmap_sem);
 	if (tsk->pid == 1) {
-		tsk->policy |= SCHED_YIELD;
-		schedule();
+		yield();
 		down_read(&mm->mmap_sem);
 		goto survive;
 	}
arch/mips64/mm/fault.c +1 -2
diff -urN linux-2.4.19-pre8-ac1/arch/mips64/mm/fault.c linux/arch/mips64/mm/fault.c
@@ -240,8 +240,7 @@
 out_of_memory:
 	up_read(&mm->mmap_sem);
 	if (tsk->pid == 1) {
-		tsk->policy |= SCHED_YIELD;
-		schedule();
+		yield();
 		down_read(&mm->mmap_sem);
 		goto survive;
 	}
arch/ppc/mm/fault.c +1 -2
diff -urN linux-2.4.19-pre8-ac1/arch/ppc/mm/fault.c linux/arch/ppc/mm/fault.c
@@ -197,8 +197,7 @@
 out_of_memory:
 	up_read(&mm->mmap_sem);
 	if (current->pid == 1) {
-		current->policy |= SCHED_YIELD;
-		schedule();
+		yield();
 		down_read(&mm->mmap_sem);
 		goto survive;
 	}
arch/s390/mm/fault.c +1 -2
diff -urN linux-2.4.19-pre8-ac1/arch/s390/mm/fault.c linux/arch/s390/mm/fault.c
@@ -290,8 +290,7 @@
 out_of_memory:
 	up_read(&mm->mmap_sem);
 	if (tsk->pid == 1) {
-		tsk->policy |= SCHED_YIELD;
-		schedule();
+		yield();
 		down_read(&mm->mmap_sem);
 		goto survive;
 	}
arch/s390x/mm/fault.c +1 -2
diff -urN linux-2.4.19-pre8-ac1/arch/s390x/mm/fault.c linux/arch/s390x/mm/fault.c
@@ -290,8 +290,7 @@
 out_of_memory:
 	up_read(&mm->mmap_sem);
 	if (tsk->pid == 1) {
-		tsk->policy |= SCHED_YIELD;
-		schedule();
+		yield();
 		down_read(&mm->mmap_sem);
 		goto survive;
 	}
arch/sh/mm/fault.c +1 -2
diff -urN linux-2.4.19-pre8-ac1/arch/sh/mm/fault.c linux/arch/sh/mm/fault.c
@@ -207,8 +207,7 @@
 out_of_memory:
 	up_read(&mm->mmap_sem);
 	if (current->pid == 1) {
-		current->policy |= SCHED_YIELD;
-		schedule();
+		yield();
 		down_read(&mm->mmap_sem);
 		goto survive;
 	}
kernel/sched.c +40 -91

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