continuous quality management

This commit is contained in:
rtm 2007-08-31 19:55:27 +00:00
parent ef2185247d
commit ab4cedb593
3 changed files with 6 additions and 6 deletions

2
asm.h
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@ -1,5 +1,5 @@
//
// macros to create x86 segments from assembler
// assembler macros to create x86 segments
//
#define SEG_NULLASM \

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@ -20,8 +20,8 @@ initlock(struct spinlock *lock, char *name)
// Acquire the lock.
// Loops (spins) until the lock is acquired.
// (Because contention is handled by spinning,
// must not go to sleep holding any locks.)
// Holding a lock for a long time may cause
// other CPUs to waste time spinning to acquire it.
void
acquire(struct spinlock *lock)
{

6
x86.h
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@ -1,5 +1,4 @@
// Special assembly routines to access x86-specific
// hardware instructions.
// Routines to let C code use special x86 instructions.
static inline uchar
inb(ushort port)
@ -131,7 +130,8 @@ sti(void)
asm volatile("sti");
}
// Layout of the trap frame on the stack upon entry to trap.
// Layout of the trap frame built on the stack by the
// hardware and by trapasm.S, and passed to trap().
struct trapframe {
// registers as pushed by pusha
uint edi;