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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-05-25 14:45:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-25 14:55:01 +0200 |
| commit | 6ab423e0eaca827fbd201ca4ae7d4f8573a366b2 (patch) | |
| tree | 072d227934bf213adf5c0dd022369e14f273dc48 /kernel/fork.c | |
| parent | 771d7cde144d87f2d1fbee4da3c6234d61f7e42a (diff) | |
| download | lwn-6ab423e0eaca827fbd201ca4ae7d4f8573a366b2.tar.gz lwn-6ab423e0eaca827fbd201ca4ae7d4f8573a366b2.zip | |
perf_counter: Propagate inheritance failures down the fork() path
Fail fork() when we fail inheritance for some reason (-ENOMEM most likely).
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <20090525124600.324656474@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 675e01e9072a..c07c3335ceac 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1095,7 +1095,10 @@ static struct task_struct *copy_process(unsigned long clone_flags, /* Perform scheduler related setup. Assign this task to a CPU. */ sched_fork(p, clone_flags); - perf_counter_init_task(p); + + retval = perf_counter_init_task(p); + if (retval) + goto bad_fork_cleanup_policy; if ((retval = audit_alloc(p))) goto bad_fork_cleanup_policy; @@ -1295,6 +1298,7 @@ bad_fork_cleanup_semundo: bad_fork_cleanup_audit: audit_free(p); bad_fork_cleanup_policy: + perf_counter_exit_task(p); #ifdef CONFIG_NUMA mpol_put(p->mempolicy); bad_fork_cleanup_cgroup: |