Merge branch 'linus' into core/rcu

Conflicts:
	fs/fs-writeback.c

Merge reason: Resolve the conflict

Note, i picked the version from Linus's tree, which effectively reverts
the fs-writeback.c bits of:

  b97181f: fs: remove all rcu head initializations, except on_stack initializations

As the upstream changes to this file changed this code heavily and the
first attempt to resolve the conflict resulted in a non-booting kernel.
It's safer to re-try this portion of the commit cleanly.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 4 insertions, 2 deletions

diff --git a/fs/fcntl.c b/fs/fcntl.c
index 51e11bf5708f..9d175d623aab 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -733,12 +733,14 @@ static void kill_fasync_rcu(struct fasync_struct *fa, int sig, int band)
 {
         while (fa) {
                 struct fown_struct *fown;
+                unsigned long flags;
+
                 if (fa->magic != FASYNC_MAGIC) {
                         printk(KERN_ERR "kill_fasync: bad magic number in "
                                "fasync_struct!\n");
                         return;
                 }
-                spin_lock(&fa->fa_lock);
+                spin_lock_irqsave(&fa->fa_lock, flags);
                 if (fa->fa_file) {
                         fown = &fa->fa_file->f_owner;
                         /* Don't send SIGURG to processes which have not set a
@@ -747,7 +749,7 @@ static void kill_fasync_rcu(struct fasync_struct *fa, int sig, int band)
                         if (!(sig == SIGURG && fown->signum == 0))
                                 send_sigio(fown, fa->fa_fd, band);
                 }
-                spin_unlock(&fa->fa_lock);
+                spin_unlock_irqrestore(&fa->fa_lock, flags);
                 fa = rcu_dereference(fa->fa_next);
         }
 }