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| author | Jakub Jelinek <jakub@redhat.com> | 2007-07-12 15:40:54 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2007-07-12 15:40:54 +0000 |
| commit | d8cdfda31e549353cad281ac112fcde6db6e521b (patch) | |
| tree | 314e977912cbcb293ebd80a0150302b572c89154 | |
| parent | eff61d5bf192516c4b075983fe899ad4ababb312 (diff) | |
| download | glibc-d8cdfda31e549353cad281ac112fcde6db6e521b.tar.gz glibc-d8cdfda31e549353cad281ac112fcde6db6e521b.tar.xz glibc-d8cdfda31e549353cad281ac112fcde6db6e521b.zip | |
2007-02-25 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/fork.c (__libc_fork): Reset refcntr in new thread, don't just decrement it. Patch by Suzuki K P <suzuki@in.ibm.com>.
| -rw-r--r-- | nptl/ChangeLog | 6 | ||||
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/fork.c | 7 |
2 files changed, 11 insertions, 2 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 6fa76ca4e5..a3ba15dc8d 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -186,6 +186,12 @@ * tst-cancel-wrappers.sh: Set C["fdatasync"] to 1. * tst-cancel4.c (tf_fdatasync): New test. +2007-02-25 Ulrich Drepper <drepper@redhat.com> + + * sysdeps/unix/sysv/linux/fork.c (__libc_fork): Reset refcntr in + new thread, don't just decrement it. + Patch by Suzuki K P <suzuki@in.ibm.com>. + 2007-02-09 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/x86_64/lowlevellock.S diff --git a/nptl/sysdeps/unix/sysv/linux/fork.c b/nptl/sysdeps/unix/sysv/linux/fork.c index 840974401b..f6691e1344 100644 --- a/nptl/sysdeps/unix/sysv/linux/fork.c +++ b/nptl/sysdeps/unix/sysv/linux/fork.c @@ -167,8 +167,11 @@ __libc_fork (void) allp->handler->child_handler (); /* Note that we do not have to wake any possible waiter. - This is the only thread in the new process. */ - --allp->handler->refcntr; + This is the only thread in the new process. The count + may have been bumped up by other threads doing a fork. + We reset it to 1, to avoid waiting for non-existing + thread(s) to release the count. */ + allp->handler->refcntr = 1; /* XXX We could at this point look through the object pool and mark all objects not on the __fork_handlers list as |