| fs.h (2f718ffc16c43a435d12919c75dbfad518abd056) | fs.h (afddba49d18f346e5cc2938b6ed7c512db18ca68) |
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| 1#ifndef _LINUX_FS_H 2#define _LINUX_FS_H 3 4/* 5 * This file has definitions for some important file table 6 * structures etc. 7 */ 8 --- 380 unchanged lines hidden (view full) --- 389 * given page. 390 */ 391 392enum positive_aop_returns { 393 AOP_WRITEPAGE_ACTIVATE = 0x80000, 394 AOP_TRUNCATED_PAGE = 0x80001, 395}; 396 | 1#ifndef _LINUX_FS_H 2#define _LINUX_FS_H 3 4/* 5 * This file has definitions for some important file table 6 * structures etc. 7 */ 8 --- 380 unchanged lines hidden (view full) --- 389 * given page. 390 */ 391 392enum positive_aop_returns { 393 AOP_WRITEPAGE_ACTIVATE = 0x80000, 394 AOP_TRUNCATED_PAGE = 0x80001, 395}; 396 |
| 397#define AOP_FLAG_UNINTERRUPTIBLE 0x0001 /* will not do a short write */ 398 |
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| 397/* 398 * oh the beauties of C type declarations. 399 */ 400struct page; 401struct address_space; 402struct writeback_control; 403 404struct iov_iter { 405 const struct iovec *iov; 406 unsigned long nr_segs; 407 size_t iov_offset; 408 size_t count; 409}; 410 411size_t iov_iter_copy_from_user_atomic(struct page *page, 412 struct iov_iter *i, unsigned long offset, size_t bytes); 413size_t iov_iter_copy_from_user(struct page *page, 414 struct iov_iter *i, unsigned long offset, size_t bytes); 415void iov_iter_advance(struct iov_iter *i, size_t bytes); | 399/* 400 * oh the beauties of C type declarations. 401 */ 402struct page; 403struct address_space; 404struct writeback_control; 405 406struct iov_iter { 407 const struct iovec *iov; 408 unsigned long nr_segs; 409 size_t iov_offset; 410 size_t count; 411}; 412 413size_t iov_iter_copy_from_user_atomic(struct page *page, 414 struct iov_iter *i, unsigned long offset, size_t bytes); 415size_t iov_iter_copy_from_user(struct page *page, 416 struct iov_iter *i, unsigned long offset, size_t bytes); 417void iov_iter_advance(struct iov_iter *i, size_t bytes); |
| 416int iov_iter_fault_in_readable(struct iov_iter *i); | 418int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes); |
| 417size_t iov_iter_single_seg_count(struct iov_iter *i); 418 419static inline void iov_iter_init(struct iov_iter *i, 420 const struct iovec *iov, unsigned long nr_segs, 421 size_t count, size_t written) 422{ 423 i->iov = iov; 424 i->nr_segs = nr_segs; --- 24 unchanged lines hidden (view full) --- 449 struct list_head *pages, unsigned nr_pages); 450 451 /* 452 * ext3 requires that a successful prepare_write() call be followed 453 * by a commit_write() call - they must be balanced 454 */ 455 int (*prepare_write)(struct file *, struct page *, unsigned, unsigned); 456 int (*commit_write)(struct file *, struct page *, unsigned, unsigned); | 419size_t iov_iter_single_seg_count(struct iov_iter *i); 420 421static inline void iov_iter_init(struct iov_iter *i, 422 const struct iovec *iov, unsigned long nr_segs, 423 size_t count, size_t written) 424{ 425 i->iov = iov; 426 i->nr_segs = nr_segs; --- 24 unchanged lines hidden (view full) --- 451 struct list_head *pages, unsigned nr_pages); 452 453 /* 454 * ext3 requires that a successful prepare_write() call be followed 455 * by a commit_write() call - they must be balanced 456 */ 457 int (*prepare_write)(struct file *, struct page *, unsigned, unsigned); 458 int (*commit_write)(struct file *, struct page *, unsigned, unsigned); |
| 459 460 int (*write_begin)(struct file *, struct address_space *mapping, 461 loff_t pos, unsigned len, unsigned flags, 462 struct page **pagep, void **fsdata); 463 int (*write_end)(struct file *, struct address_space *mapping, 464 loff_t pos, unsigned len, unsigned copied, 465 struct page *page, void *fsdata); 466 |
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| 457 /* Unfortunately this kludge is needed for FIBMAP. Don't use it */ 458 sector_t (*bmap)(struct address_space *, sector_t); 459 void (*invalidatepage) (struct page *, unsigned long); 460 int (*releasepage) (struct page *, gfp_t); 461 ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov, 462 loff_t offset, unsigned long nr_segs); 463 struct page* (*get_xip_page)(struct address_space *, sector_t, 464 int); 465 /* migrate the contents of a page to the specified target */ 466 int (*migratepage) (struct address_space *, 467 struct page *, struct page *); 468 int (*launder_page) (struct page *); 469}; 470 | 467 /* Unfortunately this kludge is needed for FIBMAP. Don't use it */ 468 sector_t (*bmap)(struct address_space *, sector_t); 469 void (*invalidatepage) (struct page *, unsigned long); 470 int (*releasepage) (struct page *, gfp_t); 471 ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov, 472 loff_t offset, unsigned long nr_segs); 473 struct page* (*get_xip_page)(struct address_space *, sector_t, 474 int); 475 /* migrate the contents of a page to the specified target */ 476 int (*migratepage) (struct address_space *, 477 struct page *, struct page *); 478 int (*launder_page) (struct page *); 479}; 480 |
| 481/* 482 * pagecache_write_begin/pagecache_write_end must be used by general code 483 * to write into the pagecache. 484 */ 485int pagecache_write_begin(struct file *, struct address_space *mapping, 486 loff_t pos, unsigned len, unsigned flags, 487 struct page **pagep, void **fsdata); 488 489int pagecache_write_end(struct file *, struct address_space *mapping, 490 loff_t pos, unsigned len, unsigned copied, 491 struct page *page, void *fsdata); 492 |
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| 471struct backing_dev_info; 472struct address_space { 473 struct inode *host; /* owner: inode, block_device */ 474 struct radix_tree_root page_tree; /* radix tree of all pages */ 475 rwlock_t tree_lock; /* and rwlock protecting it */ 476 unsigned int i_mmap_writable;/* count VM_SHARED mappings */ 477 struct prio_tree_root i_mmap; /* tree of private and shared mappings */ 478 struct list_head i_mmap_nonlinear;/*list VM_NONLINEAR mappings */ --- 1382 unchanged lines hidden (view full) --- 1861extern int simple_rename(struct inode *, struct dentry *, struct inode *, struct dentry *); 1862extern int simple_sync_file(struct file *, struct dentry *, int); 1863extern int simple_empty(struct dentry *); 1864extern int simple_readpage(struct file *file, struct page *page); 1865extern int simple_prepare_write(struct file *file, struct page *page, 1866 unsigned offset, unsigned to); 1867extern int simple_commit_write(struct file *file, struct page *page, 1868 unsigned offset, unsigned to); | 493struct backing_dev_info; 494struct address_space { 495 struct inode *host; /* owner: inode, block_device */ 496 struct radix_tree_root page_tree; /* radix tree of all pages */ 497 rwlock_t tree_lock; /* and rwlock protecting it */ 498 unsigned int i_mmap_writable;/* count VM_SHARED mappings */ 499 struct prio_tree_root i_mmap; /* tree of private and shared mappings */ 500 struct list_head i_mmap_nonlinear;/*list VM_NONLINEAR mappings */ --- 1382 unchanged lines hidden (view full) --- 1883extern int simple_rename(struct inode *, struct dentry *, struct inode *, struct dentry *); 1884extern int simple_sync_file(struct file *, struct dentry *, int); 1885extern int simple_empty(struct dentry *); 1886extern int simple_readpage(struct file *file, struct page *page); 1887extern int simple_prepare_write(struct file *file, struct page *page, 1888 unsigned offset, unsigned to); 1889extern int simple_commit_write(struct file *file, struct page *page, 1890 unsigned offset, unsigned to); |
| 1891extern int simple_write_begin(struct file *file, struct address_space *mapping, 1892 loff_t pos, unsigned len, unsigned flags, 1893 struct page **pagep, void **fsdata); 1894extern int simple_write_end(struct file *file, struct address_space *mapping, 1895 loff_t pos, unsigned len, unsigned copied, 1896 struct page *page, void *fsdata); |
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| 1869 1870extern struct dentry *simple_lookup(struct inode *, struct dentry *, struct nameidata *); 1871extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *); 1872extern const struct file_operations simple_dir_operations; 1873extern const struct inode_operations simple_dir_inode_operations; 1874struct tree_descr { char *name; const struct file_operations *ops; int mode; }; 1875struct dentry *d_alloc_name(struct dentry *, const char *); 1876extern int simple_fill_super(struct super_block *, int, struct tree_descr *); --- 135 unchanged lines hidden --- | 1897 1898extern struct dentry *simple_lookup(struct inode *, struct dentry *, struct nameidata *); 1899extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *); 1900extern const struct file_operations simple_dir_operations; 1901extern const struct inode_operations simple_dir_inode_operations; 1902struct tree_descr { char *name; const struct file_operations *ops; int mode; }; 1903struct dentry *d_alloc_name(struct dentry *, const char *); 1904extern int simple_fill_super(struct super_block *, int, struct tree_descr *); --- 135 unchanged lines hidden --- |