Merge branch 'master' into for-next
[linux-2.6.git] / fs / ext4 / extents.c
index 6b90b68..686240e 100644 (file)
@@ -3174,9 +3174,10 @@ ext4_ext_handle_uninitialized_extents(handle_t *handle, struct inode *inode,
                 * that this IO needs to convertion to written when IO is
                 * completed
                 */
-               if (io)
+               if (io && !(io->flag & EXT4_IO_END_UNWRITTEN)) {
                        io->flag = EXT4_IO_END_UNWRITTEN;
-               else
+                       atomic_inc(&EXT4_I(inode)->i_aiodio_unwritten);
+               } else
                        ext4_set_inode_state(inode, EXT4_STATE_DIO_UNWRITTEN);
                if (ext4_should_dioread_nolock(inode))
                        map->m_flags |= EXT4_MAP_UNINIT;
@@ -3463,9 +3464,10 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
                 * that we need to perform convertion when IO is done.
                 */
                if ((flags & EXT4_GET_BLOCKS_PRE_IO)) {
-                       if (io)
+                       if (io && !(io->flag & EXT4_IO_END_UNWRITTEN)) {
                                io->flag = EXT4_IO_END_UNWRITTEN;
-                       else
+                               atomic_inc(&EXT4_I(inode)->i_aiodio_unwritten);
+                       } else
                                ext4_set_inode_state(inode,
                                                     EXT4_STATE_DIO_UNWRITTEN);
                }
@@ -3627,14 +3629,15 @@ static void ext4_falloc_update_inode(struct inode *inode,
 }
 
 /*
- * preallocate space for a file. This implements ext4's fallocate inode
+ * preallocate space for a file. This implements ext4's fallocate file
  * operation, which gets called from sys_fallocate system call.
  * For block-mapped files, posix_fallocate should fall back to the method
  * of writing zeroes to the required new blocks (the same behavior which is
  * expected for file systems which do not support fallocate() system call).
  */
-long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len)
+long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
 {
+       struct inode *inode = file->f_path.dentry->d_inode;
        handle_t *handle;
        loff_t new_size;
        unsigned int max_blocks;
@@ -3645,7 +3648,7 @@ long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len)
        unsigned int credits, blkbits = inode->i_blkbits;
 
        /* We only support the FALLOC_FL_KEEP_SIZE mode */
-       if (mode && (mode != FALLOC_FL_KEEP_SIZE))
+       if (mode & ~FALLOC_FL_KEEP_SIZE)
                return -EOPNOTSUPP;
 
        /*
@@ -3655,10 +3658,6 @@ long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len)
        if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
                return -EOPNOTSUPP;
 
-       /* preallocation to directories is currently not supported */
-       if (S_ISDIR(inode->i_mode))
-               return -ENODEV;
-
        map.m_lblk = offset >> blkbits;
        /*
         * We can't just convert len to max_blocks because