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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2010-02-22 17:04:52 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-02-25 10:34:48 +0100 |
| commit | 7dc52157982ab771f40e3c0b7dc55b954c3c2d19 (patch) | |
| tree | a41e39174d9535f0c678eb36249ceee4a1775d6b /fs/proc/array.c | |
| parent | 497f0ab39cd25bed317b29482c147c967f7ecd1f (diff) | |
| download | linux-7dc52157982ab771f40e3c0b7dc55b954c3c2d19.tar.gz linux-7dc52157982ab771f40e3c0b7dc55b954c3c2d19.tar.bz2 linux-7dc52157982ab771f40e3c0b7dc55b954c3c2d19.zip | |
vfs: Apply lockdep-based checking to rcu_dereference() uses
Add lockdep-ified RCU primitives to alloc_fd(), files_fdtable()
and fcheck_files().
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
LKML-Reference: <1266887105-1528-8-git-send-email-paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/proc/array.c')
| -rw-r--r-- | fs/proc/array.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/proc/array.c b/fs/proc/array.c index 13b5d0708175..18e20feee251 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -270,7 +270,9 @@ static inline void task_sig(struct seq_file *m, struct task_struct *p) blocked = p->blocked; collect_sigign_sigcatch(p, &ignored, &caught); num_threads = atomic_read(&p->signal->count); + rcu_read_lock(); /* FIXME: is this correct? */ qsize = atomic_read(&__task_cred(p)->user->sigpending); + rcu_read_unlock(); qlim = p->signal->rlim[RLIMIT_SIGPENDING].rlim_cur; unlock_task_sighand(p, &flags); } |