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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 /src/process | |
| parent | 0913560a3ffd4572d926b4f9bed3dbf3e6a1b3f0 (diff) | |
| download | musl-e2915eeeea244d3818d5eb7532ed35c6cf43c8fd.tar.gz musl-e2915eeeea244d3818d5eb7532ed35c6cf43c8fd.tar.bz2 musl-e2915eeeea244d3818d5eb7532ed35c6cf43c8fd.tar.xz musl-e2915eeeea244d3818d5eb7532ed35c6cf43c8fd.zip | |
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.
Diffstat (limited to 'src/process')
| -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); |