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authorrsc <rsc>2007-09-27 20:09:40 +0000
committerrsc <rsc>2007-09-27 20:09:40 +0000
commit3807c1f20b5f7dca7ec7ca4bbe38bc5904e980ff (patch)
tree3d0ee391126d390d1c5b72c8b1d003d0db6807aa
parent39c3fb1b157927058f24b72d43be6f15c1d422b7 (diff)
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rename splhi/spllo to pushcli/popcli
-rw-r--r--defs.h4
-rw-r--r--main.c6
-rw-r--r--proc.c10
-rw-r--r--proc.h2
-rw-r--r--spinlock.c18
-rw-r--r--trap.c4
6 files changed, 22 insertions, 22 deletions
diff --git a/defs.h b/defs.h
index 4d2cba9..beb48fe 100644
--- a/defs.h
+++ b/defs.h
@@ -115,8 +115,8 @@ void getcallerpcs(void*, uint*);
int holding(struct spinlock*);
void initlock(struct spinlock*, char*);
void release(struct spinlock*);
-void splhi();
-void spllo();
+void pushcli();
+void popcli();
// string.c
int memcmp(const void*, const void*, uint);
diff --git a/main.c b/main.c
index 4176e6c..464112b 100644
--- a/main.c
+++ b/main.c
@@ -18,9 +18,9 @@ main(void)
// clear BSS
memset(edata, 0, end - edata);
- // splhi() every processor during bootstrap.
+ // pushcli() every processor during bootstrap.
for(i=0; i<NCPU; i++)
- cpus[i].nsplhi = 1; // no interrupts during bootstrap
+ cpus[i].ncli = 1; // no interrupts during bootstrap
mp_init(); // collect info about this machine
bcpu = mp_bcpu();
@@ -63,7 +63,7 @@ mpmain(void)
asm volatile("movl %0, %%ss" :: "r" (SEG_CPUSTACK << 3));
cpuid(0, 0, 0, 0, 0); // memory barrier
cpus[cpu()].booted = 1;
- spllo();
+ popcli();
scheduler();
}
diff --git a/proc.c b/proc.c
index b80a08e..e139c39 100644
--- a/proc.c
+++ b/proc.c
@@ -71,7 +71,7 @@ setupsegs(struct proc *p)
{
struct cpu *c;
- splhi();
+ pushcli();
c = &cpus[cpu()];
c->ts.ss0 = SEG_PROCSTACK << 3;
if(p)
@@ -97,7 +97,7 @@ setupsegs(struct proc *p)
lgdt(c->gdt, sizeof(c->gdt));
ltr(SEG_TSS << 3);
- spllo();
+ popcli();
}
// Create a new process copying p as the parent.
@@ -189,9 +189,9 @@ curproc(void)
{
struct proc *p;
- splhi();
+ pushcli();
p = cpus[cpu()].curproc;
- spllo();
+ popcli();
return p;
}
@@ -249,7 +249,7 @@ sched(void)
panic("sched running");
if(!holding(&proc_table_lock))
panic("sched proc_table_lock");
- if(cpus[cpu()].nsplhi != 1)
+ if(cpus[cpu()].ncli != 1)
panic("sched locks");
swtch(&cp->context, &cpus[cpu()].context);
diff --git a/proc.h b/proc.h
index 285f6bf..2063baa 100644
--- a/proc.h
+++ b/proc.h
@@ -61,7 +61,7 @@ struct cpu {
struct segdesc gdt[NSEGS]; // x86 global descriptor table
char *stack;
volatile int booted; // Has the CPU started?
- int nsplhi; // Depth of splhi nesting.
+ int ncli; // Depth of pushcli nesting.
};
extern struct cpu cpus[NCPU];
diff --git a/spinlock.c b/spinlock.c
index 61ae093..bf02292 100644
--- a/spinlock.c
+++ b/spinlock.c
@@ -25,7 +25,7 @@ initlock(struct spinlock *lock, char *name)
void
acquire(struct spinlock *lock)
{
- splhi();
+ pushcli();
if(holding(lock))
panic("acquire");
@@ -59,7 +59,7 @@ release(struct spinlock *lock)
cpuid(0, 0, 0, 0, 0); // memory barrier (see Ch 7, IA-32 manual vol 3)
lock->locked = 0;
- spllo();
+ popcli();
}
// Record the current call stack in pcs[] by following the %ebp chain.
@@ -93,20 +93,20 @@ holding(struct spinlock *lock)
// Better names? Better functions?
void
-splhi(void)
+pushcli(void)
{
cli();
- cpus[cpu()].nsplhi++;
+ cpus[cpu()].ncli++;
}
void
-spllo(void)
+popcli(void)
{
if(read_eflags()&FL_IF)
- panic("spllo - interruptible");
- if(--cpus[cpu()].nsplhi < 0)
- panic("spllo");
- if(cpus[cpu()].nsplhi == 0)
+ panic("popcli - interruptible");
+ if(--cpus[cpu()].ncli < 0)
+ panic("popcli");
+ if(cpus[cpu()].ncli == 0)
sti();
}
diff --git a/trap.c b/trap.c
index 7ef32ff..0acc94b 100644
--- a/trap.c
+++ b/trap.c
@@ -45,7 +45,7 @@ trap(struct trapframe *tf)
}
// No interrupts during interrupt handling.
- splhi();
+ pushcli();
switch(tf->trapno){
case IRQ_OFFSET + IRQ_TIMER:
@@ -84,7 +84,7 @@ trap(struct trapframe *tf)
cp->killed = 1;
}
- spllo();
+ popcli();
// Force process exit if it has been killed and is in user space.
// (If it is still executing in the kernel, let it keep running