diff options
| author | netchild <netchild@FreeBSD.org> | 2006-09-09 16:55:55 +0000 |
|---|---|---|
| committer | netchild <netchild@FreeBSD.org> | 2006-09-09 16:55:55 +0000 |
| commit | bca838df3374bbcc0da828df47b47281d90d4e60 (patch) | |
| tree | 13e38564a60dd5f694086ab30a0d3f3d3555f9c6 /sys | |
| parent | b5865520e186acd59b849006e7d730957562a55f (diff) | |
| download | FreeBSD-src-bca838df3374bbcc0da828df47b47281d90d4e60.zip FreeBSD-src-bca838df3374bbcc0da828df47b47281d90d4e60.tar.gz | |
- Extend the coverage of PROC_LOCK to cover wakeup(&p->p_emuldata);
- Lock the emuldata in a case when we just created it.
Sponsored by: Google SoC 2006
Submitted by: rdivacky
Suggested by: jhb
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/compat/linux/linux_emul.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/compat/linux/linux_emul.c b/sys/compat/linux/linux_emul.c index b6b74c6..c1dafbc 100644 --- a/sys/compat/linux/linux_emul.c +++ b/sys/compat/linux/linux_emul.c @@ -101,6 +101,7 @@ linux_proc_init(struct thread *td, pid_t child, int flags) panic("process not found in proc_init\n"); p->p_emuldata = em; PROC_UNLOCK(p); + EMUL_LOCK(&emul_lock); } else { /* lookup the old one */ em = em_find(td->td_proc, EMUL_UNLOCKED); @@ -129,14 +130,15 @@ linux_proc_init(struct thread *td, pid_t child, int flags) if (child != 0) { + EMUL_UNLOCK(&emul_lock); EMUL_SHARED_WLOCK(&emul_shared_lock); LIST_INSERT_HEAD(&em->shared->threads, em, threads); EMUL_SHARED_WUNLOCK(&emul_shared_lock); p = pfind(child); - PROC_UNLOCK(p); /* we might have a sleeping linux_schedtail */ wakeup(&p->p_emuldata); + PROC_UNLOCK(p); } else EMUL_UNLOCK(&emul_lock); |
