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| author | Robert Morris <[email protected]> | 2019-07-10 09:24:50 -0400 |
|---|---|---|
| committer | Robert Morris <[email protected]> | 2019-07-10 09:24:50 -0400 |
| commit | 5eb1685700a7665814f1bcf63fc26f5dbf0f719a (patch) | |
| tree | 1761a1065a9dca8952c864f6bdef4cabf1568160 /kernel/syscall.c | |
| parent | 9981bb227093373649acd019d378dfccb54189c8 (diff) | |
| download | xv6-labs-5eb1685700a7665814f1bcf63fc26f5dbf0f719a.tar.gz xv6-labs-5eb1685700a7665814f1bcf63fc26f5dbf0f719a.tar.bz2 xv6-labs-5eb1685700a7665814f1bcf63fc26f5dbf0f719a.zip | |
have kill() lock before looking at p->pid
document wait()'s use of np->parent w/o holding lock.
Diffstat (limited to 'kernel/syscall.c')
| -rw-r--r-- | kernel/syscall.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/kernel/syscall.c b/kernel/syscall.c index a054da2..adbad73 100644 --- a/kernel/syscall.c +++ b/kernel/syscall.c @@ -163,8 +163,8 @@ static uint64 (*syscalls[])(void) = { [SYS_close] sys_close, }; -static void -dosyscall(void) +void +syscall(void) { int num; struct proc *p = myproc(); @@ -180,15 +180,3 @@ dosyscall(void) p->tf->a0 = -1; } } - -void -syscall() -{ - if(myproc()->killed) - exit(); - dosyscall(); - if(myproc()->killed) - exit(); - return; -} - |