1 files changed, 21 insertions, 10 deletions

diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
index 9b9eb6933e43..89c500ee5213 100644
--- a/fs/hpfs/file.c
+++ b/fs/hpfs/file.c
@@ -20,8 +20,8 @@ static int hpfs_file_release(struct inode *inode, struct file *file)
 
 int hpfs_file_fsync(struct file *file, int datasync)
 {
-        /*return file_fsync(file, datasync);*/
-        return 0; /* Don't fsync :-) */
+        struct inode *inode = file->f_mapping->host;
+        return sync_blockdev(inode->i_sb->s_bdev);
 }
 
 /*
@@ -48,38 +48,46 @@ static secno hpfs_bmap(struct inode *inode, unsigned file_secno)
 static void hpfs_truncate(struct inode *i)
 {
         if (IS_IMMUTABLE(i)) return /*-EPERM*/;
-        hpfs_lock(i->i_sb);
+        hpfs_lock_assert(i->i_sb);
+
         hpfs_i(i)->i_n_secs = 0;
         i->i_blocks = 1 + ((i->i_size + 511) >> 9);
         hpfs_i(i)->mmu_private = i->i_size;
         hpfs_truncate_btree(i->i_sb, i->i_ino, 1, ((i->i_size + 511) >> 9));
         hpfs_write_inode(i);
         hpfs_i(i)->i_n_secs = 0;
-        hpfs_unlock(i->i_sb);
 }
 
 static int hpfs_get_block(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create)
 {
+        int r;
         secno s;
+        hpfs_lock(inode->i_sb);
         s = hpfs_bmap(inode, iblock);
         if (s) {
                 map_bh(bh_result, inode->i_sb, s);
-                return 0;
+                goto ret_0;
         }
-        if (!create) return 0;
+        if (!create) goto ret_0;
         if (iblock<<9 != hpfs_i(inode)->mmu_private) {
                 BUG();
-                return -EIO;
+                r = -EIO;
+                goto ret_r;
         }
         if ((s = hpfs_add_sector_to_btree(inode->i_sb, inode->i_ino, 1, inode->i_blocks - 1)) == -1) {
                 hpfs_truncate_btree(inode->i_sb, inode->i_ino, 1, inode->i_blocks - 1);
-                return -ENOSPC;
+                r = -ENOSPC;
+                goto ret_r;
         }
         inode->i_blocks++;
         hpfs_i(inode)->mmu_private += 512;
         set_buffer_new(bh_result);
         map_bh(bh_result, inode->i_sb, s);
-        return 0;
+        ret_0:
+        r = 0;
+        ret_r:
+        hpfs_unlock(inode->i_sb);
+        return r;
 }
 
 static int hpfs_writepage(struct page *page, struct writeback_control *wbc)
@@ -130,8 +138,11 @@ static ssize_t hpfs_file_write(struct file *file, const char __user *buf,
         ssize_t retval;
 
         retval = do_sync_write(file, buf, count, ppos);
-        if (retval > 0)
+        if (retval > 0) {
+                hpfs_lock(file->f_path.dentry->d_sb);
                 hpfs_i(file->f_path.dentry->d_inode)->i_dirty = 1;
+                hpfs_unlock(file->f_path.dentry->d_sb);
+        }
         return retval;
 }