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| author | Rich Felker <dalias@aerifal.cx> | 2011-04-12 17:52:14 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-04-12 17:52:14 -0400 |
| commit | e2915eeeea244d3818d5eb7532ed35c6cf43c8fd (patch) | |
| tree | 9b4038abca8971234ef2d63d9cabef950c6229c7 | |
| parent | 0913560a3ffd4572d926b4f9bed3dbf3e6a1b3f0 (diff) | |
| download | musl-e2915eeeea244d3818d5eb7532ed35c6cf43c8fd.tar.gz | |
speed up threaded fork
after fork, we have a new process and the pid is equal to the tid of
the new main thread. there is no need to make two separate syscalls to
obtain the same number.
| -rw-r--r-- | src/process/fork.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/src/process/fork.c b/src/process/fork.c index 012b7ca5..07fb79ed 100644 --- a/src/process/fork.c +++ b/src/process/fork.c @@ -10,8 +10,7 @@ pid_t fork(void) ret = syscall(SYS_fork); if (libc.lock && !ret) { pthread_t self = __pthread_self(); - self->pid = syscall(SYS_getpid); - self->tid = syscall(SYS_gettid); + self->tid = self->pid = syscall(SYS_getpid); libc.threads_minus_1 = 0; } if (libc.fork_handler) libc.fork_handler(!ret); |