Merge branch 'master' into for-next

Fast-forwarded to current state of Linus' tree as there are patches to be
applied for files that didn't exist on the old branch.

1 files changed, 24 insertions, 9 deletions

diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index 7829b287822a..e9473cbe80df 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -101,7 +101,7 @@ extern int ext4_flush_completed_IO(struct inode *inode)
 		 * to the work-to-be schedule is freed.
 		 *
 		 * Thus we need to keep the io structure still valid here after
-		 * convertion finished. The io structure has a flag to
+		 * conversion finished. The io structure has a flag to
 		 * avoid double converting from both fsync and background work
 		 * queue work.
 		 */
@@ -125,9 +125,11 @@ extern int ext4_flush_completed_IO(struct inode *inode)
  * the parent directory's parent as well, and so on recursively, if
  * they are also freshly created.
  */
-static void ext4_sync_parent(struct inode *inode)
+static int ext4_sync_parent(struct inode *inode)
 {
+	struct writeback_control wbc;
 	struct dentry *dentry = NULL;
+	int ret = 0;
 
 	while (inode && ext4_test_inode_state(inode, EXT4_STATE_NEWENTRY)) {
 		ext4_clear_inode_state(inode, EXT4_STATE_NEWENTRY);
@@ -136,8 +138,17 @@ static void ext4_sync_parent(struct inode *inode)
 		if (!dentry || !dentry->d_parent || !dentry->d_parent->d_inode)
 			break;
 		inode = dentry->d_parent->d_inode;
-		sync_mapping_buffers(inode->i_mapping);
+		ret = sync_mapping_buffers(inode->i_mapping);
+		if (ret)
+			break;
+		memset(&wbc, 0, sizeof(wbc));
+		wbc.sync_mode = WB_SYNC_ALL;
+		wbc.nr_to_write = 0;         /* only write out the inode */
+		ret = sync_inode(inode, &wbc);
+		if (ret)
+			break;
 	}
+	return ret;
 }
 
 /*
@@ -164,20 +175,20 @@ int ext4_sync_file(struct file *file, int datasync)
 
 	J_ASSERT(ext4_journal_current_handle() == NULL);
 
-	trace_ext4_sync_file(file, datasync);
+	trace_ext4_sync_file_enter(file, datasync);
 
 	if (inode->i_sb->s_flags & MS_RDONLY)
 		return 0;
 
 	ret = ext4_flush_completed_IO(inode);
 	if (ret < 0)
-		return ret;
+		goto out;
 
 	if (!journal) {
 		ret = generic_file_fsync(file, datasync);
 		if (!ret && !list_empty(&inode->i_dentry))
-			ext4_sync_parent(inode);
-		return ret;
+			ret = ext4_sync_parent(inode);
+		goto out;
 	}
 
 	/*
@@ -194,8 +205,10 @@ int ext4_sync_file(struct file *file, int datasync)
 	 *  (they were dirtied by commit).  But that's OK - the blocks are
 	 *  safe in-journal, which is all fsync() needs to ensure.
 	 */
-	if (ext4_should_journal_data(inode))
-		return ext4_force_commit(inode->i_sb);
+	if (ext4_should_journal_data(inode)) {
+		ret = ext4_force_commit(inode->i_sb);
+		goto out;
+	}
 
 	commit_tid = datasync ? ei->i_datasync_tid : ei->i_sync_tid;
 	if (jbd2_log_start_commit(journal, commit_tid)) {
@@ -215,5 +228,7 @@ int ext4_sync_file(struct file *file, int datasync)
 		ret = jbd2_log_wait_commit(journal, commit_tid);
 	} else if (journal->j_flags & JBD2_BARRIER)
 		blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+ out:
+	trace_ext4_sync_file_exit(inode, ret);
 	return ret;
 }