3 files changed, 15 insertions, 4 deletions

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index f605753c8fe9..8d74ad7ba556 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -1811,7 +1811,7 @@ out:
         spin_unlock(&ci->i_unsafe_lock);
 }
 
-int ceph_fsync(struct file *file, int datasync)
+int ceph_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
         struct inode *inode = file->f_mapping->host;
         struct ceph_inode_info *ci = ceph_inode(inode);
@@ -1822,9 +1822,10 @@ int ceph_fsync(struct file *file, int datasync)
         dout("fsync %p%s\n", inode, datasync ? " datasync" : "");
         sync_write_wait(inode);
 
-        ret = filemap_write_and_wait(inode->i_mapping);
+        ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
         if (ret < 0)
                 return ret;
+        mutex_lock(&inode->i_mutex);
 
         dirty = try_flush_caps(inode, NULL, &flush_tid);
         dout("fsync dirty caps are %s\n", ceph_cap_string(dirty));
@@ -1841,6 +1842,7 @@ int ceph_fsync(struct file *file, int datasync)
         }
 
         dout("fsync %p%s done\n", inode, datasync ? " datasync" : "");
+        mutex_unlock(&inode->i_mutex);
         return ret;
 }
 
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 0972b457a03f..1065ac779840 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1118,7 +1118,8 @@ static ssize_t ceph_read_dir(struct file *file, char __user *buf, size_t size,
  * an fsync() on a dir will wait for any uncommitted directory
  * operations to commit.
  */
-static int ceph_dir_fsync(struct file *file, int datasync)
+static int ceph_dir_fsync(struct file *file, loff_t start, loff_t end,
+                          int datasync)
 {
         struct inode *inode = file->f_path.dentry->d_inode;
         struct ceph_inode_info *ci = ceph_inode(inode);
@@ -1128,6 +1129,11 @@ static int ceph_dir_fsync(struct file *file, int datasync)
         int ret = 0;
 
         dout("dir_fsync %p\n", inode);
+        ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+        if (ret)
+                return ret;
+        mutex_lock(&inode->i_mutex);
+
         spin_lock(&ci->i_unsafe_lock);
         if (list_empty(head))
                 goto out;
@@ -1161,6 +1167,8 @@ static int ceph_dir_fsync(struct file *file, int datasync)
         } while (req->r_tid < last_tid);
 out:
         spin_unlock(&ci->i_unsafe_lock);
+        mutex_unlock(&inode->i_mutex);
+
         return ret;
 }
 
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 56c41ef47cad..30446b144e3d 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -728,7 +728,8 @@ extern void ceph_put_cap(struct ceph_mds_client *mdsc,
 
 extern void ceph_queue_caps_release(struct inode *inode);
 extern int ceph_write_inode(struct inode *inode, struct writeback_control *wbc);
-extern int ceph_fsync(struct file *file, int datasync);
+extern int ceph_fsync(struct file *file, loff_t start, loff_t end,
+                      int datasync);
 extern void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc,
                                     struct ceph_mds_session *session);
 extern struct ceph_cap *ceph_get_cap_for_mds(struct ceph_inode_info *ci,