diff options
Diffstat (limited to 'nptl/sysdeps/pthread/createthread.c')
| -rw-r--r-- | nptl/sysdeps/pthread/createthread.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/nptl/sysdeps/pthread/createthread.c b/nptl/sysdeps/pthread/createthread.c index 3bb3915281..8d96387a9a 100644 --- a/nptl/sysdeps/pthread/createthread.c +++ b/nptl/sysdeps/pthread/createthread.c @@ -75,19 +75,17 @@ do_clone (struct pthread *pd, const struct pthread_attr *attr, int rc = ARCH_CLONE (fct, STACK_VARIABLES_ARGS, clone_flags, pd, &pd->tid, TLS_VALUE, &pd->tid); - /* Allow setxid from now onwards. */ - if (__builtin_expect (atomic_exchange_acq (&pd->setxid_futex, 0) == -2, 0)) - lll_futex_wake (&pd->setxid_futex, 1, LLL_PRIVATE); - if (__builtin_expect (rc == -1, 0)) { atomic_decrement (&__nptl_nthreads); /* Oops, we lied for a second. */ - /* Failed. If the thread is detached, remove the TCB here since - the caller cannot do this. The caller remembered the thread - as detached and cannot reverify that it is not since it must - not access the thread descriptor again. */ - if (IS_DETACHED (pd)) + /* Perhaps a thread wants to change the IDs and if waiting + for this stillborn thread. */ + if (__builtin_expect (atomic_exchange_acq (&pd->setxid_futex, 0) + == -2, 0)) + lll_futex_wake (&pd->setxid_futex, 1, LLL_PRIVATE); + + /* Free the resources. */ __deallocate_stack (pd); /* We have to translate error codes. */ @@ -120,6 +118,9 @@ do_clone (struct pthread *pd, const struct pthread_attr *attr, (void) INTERNAL_SYSCALL (tkill, err2, 2, pd->tid, SIGCANCEL); #endif + /* We do not free the stack here because the canceled thread + itself will do this. */ + return (INTERNAL_SYSCALL_ERROR_P (res, err) ? INTERNAL_SYSCALL_ERRNO (res, err) : 0); |