1 files changed, 8 insertions, 1 deletions

diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index 9f32315acef1..7527855b5cc6 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -28,19 +28,26 @@
 #include "jfs_acl.h"
 #include "jfs_debug.h"
 
-int jfs_fsync(struct file *file, int datasync)
+int jfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
         struct inode *inode = file->f_mapping->host;
         int rc = 0;
 
+        rc = filemap_write_and_wait_range(inode->i_mapping, start, end);
+        if (rc)
+                return rc;
+
+        mutex_lock(&inode->i_mutex);
         if (!(inode->i_state & I_DIRTY) ||
             (datasync && !(inode->i_state & I_DIRTY_DATASYNC))) {
                 /* Make sure committed changes hit the disk */
                 jfs_flush_journal(JFS_SBI(inode->i_sb)->log, 1);
+                mutex_unlock(&inode->i_mutex);
                 return rc;
         }
 
         rc |= jfs_commit_inode(inode, 1);
+        mutex_unlock(&inode->i_mutex);
 
         return rc ? -EIO : 0;
 }