[patch 5/5] ocfs2: add freeze protection to ocfs2_file_splice_write()

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From: Jan Kara <jack@xxxxxxx>
Subject: ocfs2: add freeze protection to ocfs2_file_splice_write()

ocfs2_file_splice_write() was missed when adding freeze protection to all
write paths. Fix that.

Signed-off-by: Jan Kara <jack@xxxxxxx>
Acked-by: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Nikola Ciprich <nikola.ciprich@xxxxxxxxxxx>
Cc: Marco Stornelli <marco.stornelli@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 fs/ocfs2/file.c |    4 ++++
 1 file changed, 4 insertions(+)

diff -puN fs/ocfs2/file.c~ocfs2-add-freeze-protection-to-ocfs2_file_splice_write fs/ocfs2/file.c
--- a/fs/ocfs2/file.c~ocfs2-add-freeze-protection-to-ocfs2_file_splice_write
+++ a/fs/ocfs2/file.c
@@ -2468,6 +2468,9 @@ static ssize_t ocfs2_file_splice_write(s
 			out->f_path.dentry->d_name.len,
 			out->f_path.dentry->d_name.name, len);
 
+	if (!sb_start_file_write(out))
+		return -EAGAIN;
+
 	if (pipe->inode)
 		mutex_lock_nested(&pipe->inode->i_mutex, I_MUTEX_PARENT);
 
@@ -2506,6 +2509,7 @@ static ssize_t ocfs2_file_splice_write(s
 
 		balance_dirty_pages_ratelimited(mapping);
 	}
+	sb_end_write(inode->i_sb);
 
 	return ret;
 }
_
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