diff options
Diffstat (limited to 'fs/ocfs2/aops.h')
| -rw-r--r-- | fs/ocfs2/aops.h | 77 |
1 files changed, 74 insertions, 3 deletions
diff --git a/fs/ocfs2/aops.h b/fs/ocfs2/aops.h index f446a15eab8..45821d479b5 100644 --- a/fs/ocfs2/aops.h +++ b/fs/ocfs2/aops.h | |||
| @@ -30,12 +30,83 @@ handle_t *ocfs2_start_walk_page_trans(struct inode *inode, | |||
| 30 | unsigned from, | 30 | unsigned from, |
| 31 | unsigned to); | 31 | unsigned to); |
| 32 | 32 | ||
| 33 | int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno, | ||
| 34 | struct inode *inode, unsigned int from, | ||
| 35 | unsigned int to, int new); | ||
| 36 | |||
| 37 | int walk_page_buffers( handle_t *handle, | ||
| 38 | struct buffer_head *head, | ||
| 39 | unsigned from, | ||
| 40 | unsigned to, | ||
| 41 | int *partial, | ||
| 42 | int (*fn)( handle_t *handle, | ||
| 43 | struct buffer_head *bh)); | ||
| 44 | |||
| 45 | struct ocfs2_write_ctxt; | ||
| 46 | typedef int (ocfs2_page_writer)(struct inode *, struct ocfs2_write_ctxt *, | ||
| 47 | u64 *, unsigned int *, unsigned int *); | ||
| 48 | |||
| 49 | ssize_t ocfs2_buffered_write_cluster(struct file *file, loff_t pos, | ||
| 50 | size_t count, ocfs2_page_writer *actor, | ||
| 51 | void *priv); | ||
| 52 | |||
| 53 | struct ocfs2_write_ctxt { | ||
| 54 | size_t w_count; | ||
| 55 | loff_t w_pos; | ||
| 56 | u32 w_cpos; | ||
| 57 | unsigned int w_finished_copy; | ||
| 58 | |||
| 59 | /* This is true if page_size > cluster_size */ | ||
| 60 | unsigned int w_large_pages; | ||
| 61 | |||
| 62 | /* Filler callback and private data */ | ||
| 63 | ocfs2_page_writer *w_write_data_page; | ||
| 64 | void *w_private; | ||
| 65 | |||
| 66 | /* Only valid for the filler callback */ | ||
| 67 | struct page *w_this_page; | ||
| 68 | unsigned int w_this_page_new; | ||
| 69 | }; | ||
| 70 | |||
| 71 | struct ocfs2_buffered_write_priv { | ||
| 72 | char *b_src_buf; | ||
| 73 | const struct iovec *b_cur_iov; /* Current iovec */ | ||
| 74 | size_t b_cur_off; /* Offset in the | ||
| 75 | * current iovec */ | ||
| 76 | }; | ||
| 77 | int ocfs2_map_and_write_user_data(struct inode *inode, | ||
| 78 | struct ocfs2_write_ctxt *wc, | ||
| 79 | u64 *p_blkno, | ||
| 80 | unsigned int *ret_from, | ||
| 81 | unsigned int *ret_to); | ||
| 82 | |||
| 83 | struct ocfs2_splice_write_priv { | ||
| 84 | struct splice_desc *s_sd; | ||
| 85 | struct pipe_buffer *s_buf; | ||
| 86 | struct pipe_inode_info *s_pipe; | ||
| 87 | /* Neither offset value is ever larger than one page */ | ||
| 88 | unsigned int s_offset; | ||
| 89 | unsigned int s_buf_offset; | ||
| 90 | }; | ||
| 91 | int ocfs2_map_and_write_splice_data(struct inode *inode, | ||
| 92 | struct ocfs2_write_ctxt *wc, | ||
| 93 | u64 *p_blkno, | ||
| 94 | unsigned int *ret_from, | ||
| 95 | unsigned int *ret_to); | ||
| 96 | |||
| 33 | /* all ocfs2_dio_end_io()'s fault */ | 97 | /* all ocfs2_dio_end_io()'s fault */ |
| 34 | #define ocfs2_iocb_is_rw_locked(iocb) \ | 98 | #define ocfs2_iocb_is_rw_locked(iocb) \ |
| 35 | test_bit(0, (unsigned long *)&iocb->private) | 99 | test_bit(0, (unsigned long *)&iocb->private) |
| 36 | #define ocfs2_iocb_set_rw_locked(iocb) \ | 100 | static inline void ocfs2_iocb_set_rw_locked(struct kiocb *iocb, int level) |
| 37 | set_bit(0, (unsigned long *)&iocb->private) | 101 | { |
| 102 | set_bit(0, (unsigned long *)&iocb->private); | ||
| 103 | if (level) | ||
| 104 | set_bit(1, (unsigned long *)&iocb->private); | ||
| 105 | else | ||
| 106 | clear_bit(1, (unsigned long *)&iocb->private); | ||
| 107 | } | ||
| 38 | #define ocfs2_iocb_clear_rw_locked(iocb) \ | 108 | #define ocfs2_iocb_clear_rw_locked(iocb) \ |
| 39 | clear_bit(0, (unsigned long *)&iocb->private) | 109 | clear_bit(0, (unsigned long *)&iocb->private) |
| 40 | 110 | #define ocfs2_iocb_rw_locked_level(iocb) \ | |
| 111 | test_bit(1, (unsigned long *)&iocb->private) | ||
| 41 | #endif /* OCFS2_FILE_H */ | 112 | #endif /* OCFS2_FILE_H */ |