| /* |
| * Copyright (c) 2005 Silicon Graphics, Inc. |
| * All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| #ifndef __XFS_AOPS_H__ |
| #define __XFS_AOPS_H__ |
| |
| extern struct workqueue_struct *xfsdatad_workqueue; |
| extern mempool_t *xfs_ioend_pool; |
| |
| typedef void (*xfs_ioend_func_t)(void *); |
| |
| /* |
| * xfs_ioend struct manages large extent writes for XFS. |
| * It can manage several multi-page bio's at once. |
| */ |
| typedef struct xfs_ioend { |
| struct xfs_ioend *io_list; /* next ioend in chain */ |
| unsigned int io_type; /* delalloc / unwritten */ |
| unsigned int io_uptodate; /* I/O status register */ |
| atomic_t io_remaining; /* hold count */ |
| struct vnode *io_vnode; /* file being written to */ |
| struct buffer_head *io_buffer_head;/* buffer linked list head */ |
| struct buffer_head *io_buffer_tail;/* buffer linked list tail */ |
| size_t io_size; /* size of the extent */ |
| xfs_off_t io_offset; /* offset in the file */ |
| struct work_struct io_work; /* xfsdatad work queue */ |
| } xfs_ioend_t; |
| |
| extern struct address_space_operations xfs_address_space_operations; |
| extern int xfs_get_block(struct inode *, sector_t, struct buffer_head *, int); |
| |
| #endif /* __XFS_IOPS_H__ */ |