Merge commit 'perf/core' into perf/hw-breakpoint

Conflicts:
	kernel/Makefile
	kernel/trace/Makefile
	kernel/trace/trace.h
	samples/Makefile

Merge reason: We need to be uptodate with the perf events development
branch because we plan to rewrite the breakpoints API on top of
perf events.

1 files changed, 19 insertions, 8 deletions

diff --git a/drivers/staging/pohmelfs/dir.c b/drivers/staging/pohmelfs/dir.c
index 4c58e22c1fbe..6c5b261e9f06 100644
--- a/drivers/staging/pohmelfs/dir.c
+++ b/drivers/staging/pohmelfs/dir.c
@@ -352,7 +352,9 @@ static int pohmelfs_sync_remote_dir(struct pohmelfs_inode *pi)
 			test_bit(NETFS_INODE_REMOTE_DIR_SYNCED, &pi->state) || pi->error, ret);
 	dprintk("%s: awake dir: %llu, ret: %ld, err: %d.\n", __func__, pi->ino, ret, pi->error);
 	if (ret <= 0) {
-		err = -ETIMEDOUT;
+		err = ret;
+		if (!err)
+			err = -ETIMEDOUT;
 		goto err_out_exit;
 	}
 
@@ -412,7 +414,7 @@ static int pohmelfs_readdir(struct file *file, void *dirent, filldir_t filldir)
 				__func__, file->f_pos, pi->ino, n->data, n->len,
 				n->ino, n->mode, mode, file->f_pos, n->hash);
 
-		file->private_data = (void *)n->hash;
+		file->private_data = (void *)(unsigned long)n->hash;
 
 		len = n->len;
 		err = filldir(dirent, n->data, n->len, file->f_pos, n->ino, mode);
@@ -472,10 +474,11 @@ static int pohmelfs_lookup_single(struct pohmelfs_inode *parent,
 	err = 0;
 	ret = wait_event_interruptible_timeout(psb->wait,
 			!test_bit(NETFS_COMMAND_PENDING, &parent->state), ret);
-	if (ret == 0)
-		err = -ETIMEDOUT;
-	else if (signal_pending(current))
-		err = -EINTR;
+	if (ret <= 0) {
+		err = ret;
+		if (!err)
+			err = -ETIMEDOUT;
+	}
 
 	if (err)
 		goto err_out_exit;
@@ -505,13 +508,21 @@ struct dentry *pohmelfs_lookup(struct inode *dir, struct dentry *dentry, struct
 	struct pohmelfs_name *n;
 	struct inode *inode = NULL;
 	unsigned long ino = 0;
-	int err, lock_type = POHMELFS_READ_LOCK, need_lock;
+	int err, lock_type = POHMELFS_READ_LOCK, need_lock = 1;
 	struct qstr str = dentry->d_name;
 
 	if ((nd->intent.open.flags & O_ACCMODE) > 1)
 		lock_type = POHMELFS_WRITE_LOCK;
 
-	need_lock = pohmelfs_need_lock(parent, lock_type);
+	if (test_bit(NETFS_INODE_OWNED, &parent->state)) {
+		if (lock_type == parent->lock_type)
+			need_lock = 0;
+		if ((lock_type == POHMELFS_READ_LOCK) && (parent->lock_type == POHMELFS_WRITE_LOCK))
+			need_lock = 0;
+	}
+
+	if ((lock_type == POHMELFS_READ_LOCK) && !test_bit(NETFS_INODE_REMOTE_DIR_SYNCED, &parent->state))
+		need_lock = 1;
 
 	str.hash = jhash(dentry->d_name.name, dentry->d_name.len, 0);