Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 1 | /* |
| 2 | * linux/fs/9p/vfs_addr.c |
| 3 | * |
| 4 | * This file contians vfs address (mmap) ops for 9P2000. |
| 5 | * |
| 6 | * Copyright (C) 2005 by Eric Van Hensbergen <ericvh@gmail.com> |
| 7 | * Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
Eric Van Hensbergen | 42e8c50 | 2006-03-25 03:07:28 -0800 | [diff] [blame] | 10 | * it under the terms of the GNU General Public License version 2 |
| 11 | * as published by the Free Software Foundation. |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to: |
| 20 | * Free Software Foundation |
| 21 | * 51 Franklin Street, Fifth Floor |
| 22 | * Boston, MA 02111-1301 USA |
| 23 | * |
| 24 | */ |
| 25 | |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/errno.h> |
| 28 | #include <linux/fs.h> |
| 29 | #include <linux/file.h> |
| 30 | #include <linux/stat.h> |
| 31 | #include <linux/string.h> |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 32 | #include <linux/inet.h> |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 33 | #include <linux/pagemap.h> |
| 34 | #include <linux/idr.h> |
Alexey Dobriyan | e8edc6e | 2007-05-21 01:22:52 +0400 | [diff] [blame] | 35 | #include <linux/sched.h> |
Kent Overstreet | a27bb33 | 2013-05-07 16:19:08 -0700 | [diff] [blame] | 36 | #include <linux/aio.h> |
Latchesar Ionkov | bd238fb | 2007-07-10 17:57:28 -0500 | [diff] [blame] | 37 | #include <net/9p/9p.h> |
| 38 | #include <net/9p/client.h> |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 39 | |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 40 | #include "v9fs.h" |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 41 | #include "v9fs_vfs.h" |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 42 | #include "cache.h" |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 43 | #include "fid.h" |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 44 | |
| 45 | /** |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 46 | * v9fs_fid_readpage - read an entire page in from 9P |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 47 | * |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 48 | * @fid: fid being read |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 49 | * @page: structure to page |
| 50 | * |
| 51 | */ |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 52 | static int v9fs_fid_readpage(struct p9_fid *fid, struct page *page) |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 53 | { |
Latchesar Ionkov | bd238fb | 2007-07-10 17:57:28 -0500 | [diff] [blame] | 54 | int retval; |
| 55 | loff_t offset; |
| 56 | char *buffer; |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 57 | struct inode *inode; |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 58 | |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 59 | inode = page->mapping->host; |
Joe Perches | 5d38515 | 2011-11-28 10:40:46 -0800 | [diff] [blame] | 60 | p9_debug(P9_DEBUG_VFS, "\n"); |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 61 | |
| 62 | BUG_ON(!PageLocked(page)); |
| 63 | |
| 64 | retval = v9fs_readpage_from_fscache(inode, page); |
| 65 | if (retval == 0) |
| 66 | return retval; |
| 67 | |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 68 | buffer = kmap(page); |
Latchesar Ionkov | bd238fb | 2007-07-10 17:57:28 -0500 | [diff] [blame] | 69 | offset = page_offset(page); |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 70 | |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 71 | retval = v9fs_fid_readn(fid, buffer, NULL, PAGE_CACHE_SIZE, offset); |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 72 | if (retval < 0) { |
| 73 | v9fs_uncache_page(inode, page); |
Latchesar Ionkov | bd238fb | 2007-07-10 17:57:28 -0500 | [diff] [blame] | 74 | goto done; |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 75 | } |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 76 | |
Latchesar Ionkov | bd238fb | 2007-07-10 17:57:28 -0500 | [diff] [blame] | 77 | memset(buffer + retval, 0, PAGE_CACHE_SIZE - retval); |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 78 | flush_dcache_page(page); |
| 79 | SetPageUptodate(page); |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 80 | |
| 81 | v9fs_readpage_to_fscache(inode, page); |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 82 | retval = 0; |
| 83 | |
Latchesar Ionkov | bd238fb | 2007-07-10 17:57:28 -0500 | [diff] [blame] | 84 | done: |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 85 | kunmap(page); |
| 86 | unlock_page(page); |
| 87 | return retval; |
| 88 | } |
| 89 | |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 90 | /** |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 91 | * v9fs_vfs_readpage - read an entire page in from 9P |
| 92 | * |
| 93 | * @filp: file being read |
| 94 | * @page: structure to page |
| 95 | * |
| 96 | */ |
| 97 | |
| 98 | static int v9fs_vfs_readpage(struct file *filp, struct page *page) |
| 99 | { |
| 100 | return v9fs_fid_readpage(filp->private_data, page); |
| 101 | } |
| 102 | |
| 103 | /** |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 104 | * v9fs_vfs_readpages - read a set of pages from 9P |
| 105 | * |
| 106 | * @filp: file being read |
| 107 | * @mapping: the address space |
| 108 | * @pages: list of pages to read |
| 109 | * @nr_pages: count of pages to read |
| 110 | * |
| 111 | */ |
| 112 | |
| 113 | static int v9fs_vfs_readpages(struct file *filp, struct address_space *mapping, |
| 114 | struct list_head *pages, unsigned nr_pages) |
| 115 | { |
| 116 | int ret = 0; |
| 117 | struct inode *inode; |
| 118 | |
| 119 | inode = mapping->host; |
Joe Perches | 5d38515 | 2011-11-28 10:40:46 -0800 | [diff] [blame] | 120 | p9_debug(P9_DEBUG_VFS, "inode: %p file: %p\n", inode, filp); |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 121 | |
| 122 | ret = v9fs_readpages_from_fscache(inode, mapping, pages, &nr_pages); |
| 123 | if (ret == 0) |
| 124 | return ret; |
| 125 | |
| 126 | ret = read_cache_pages(mapping, pages, (void *)v9fs_vfs_readpage, filp); |
Joe Perches | 5d38515 | 2011-11-28 10:40:46 -0800 | [diff] [blame] | 127 | p9_debug(P9_DEBUG_VFS, " = %d\n", ret); |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 128 | return ret; |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * v9fs_release_page - release the private state associated with a page |
| 133 | * |
| 134 | * Returns 1 if the page can be released, false otherwise. |
| 135 | */ |
| 136 | |
| 137 | static int v9fs_release_page(struct page *page, gfp_t gfp) |
| 138 | { |
| 139 | if (PagePrivate(page)) |
| 140 | return 0; |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 141 | return v9fs_fscache_release_page(page, gfp); |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * v9fs_invalidate_page - Invalidate a page completely or partially |
| 146 | * |
| 147 | * @page: structure to page |
| 148 | * @offset: offset in the page |
| 149 | */ |
| 150 | |
Lukas Czerner | d47992f | 2013-05-21 23:17:23 -0400 | [diff] [blame] | 151 | static void v9fs_invalidate_page(struct page *page, unsigned int offset, |
| 152 | unsigned int length) |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 153 | { |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 154 | /* |
| 155 | * If called with zero offset, we should release |
| 156 | * the private state assocated with the page |
| 157 | */ |
Lukas Czerner | d47992f | 2013-05-21 23:17:23 -0400 | [diff] [blame] | 158 | if (offset == 0 && length == PAGE_CACHE_SIZE) |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 159 | v9fs_fscache_invalidate_page(page); |
| 160 | } |
| 161 | |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 162 | static int v9fs_vfs_writepage_locked(struct page *page) |
| 163 | { |
| 164 | char *buffer; |
| 165 | int retval, len; |
| 166 | loff_t offset, size; |
| 167 | mm_segment_t old_fs; |
Aneesh Kumar K.V | 6b39f6d | 2011-02-28 17:04:03 +0530 | [diff] [blame] | 168 | struct v9fs_inode *v9inode; |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 169 | struct inode *inode = page->mapping->host; |
| 170 | |
Aneesh Kumar K.V | 6b39f6d | 2011-02-28 17:04:03 +0530 | [diff] [blame] | 171 | v9inode = V9FS_I(inode); |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 172 | size = i_size_read(inode); |
| 173 | if (page->index == size >> PAGE_CACHE_SHIFT) |
| 174 | len = size & ~PAGE_CACHE_MASK; |
| 175 | else |
| 176 | len = PAGE_CACHE_SIZE; |
| 177 | |
| 178 | set_page_writeback(page); |
| 179 | |
| 180 | buffer = kmap(page); |
| 181 | offset = page_offset(page); |
| 182 | |
| 183 | old_fs = get_fs(); |
| 184 | set_fs(get_ds()); |
Aneesh Kumar K.V | 6b39f6d | 2011-02-28 17:04:03 +0530 | [diff] [blame] | 185 | /* We should have writeback_fid always set */ |
| 186 | BUG_ON(!v9inode->writeback_fid); |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 187 | |
| 188 | retval = v9fs_file_write_internal(inode, |
Aneesh Kumar K.V | 6b39f6d | 2011-02-28 17:04:03 +0530 | [diff] [blame] | 189 | v9inode->writeback_fid, |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 190 | (__force const char __user *)buffer, |
| 191 | len, &offset, 0); |
| 192 | if (retval > 0) |
| 193 | retval = 0; |
| 194 | |
| 195 | set_fs(old_fs); |
| 196 | kunmap(page); |
| 197 | end_page_writeback(page); |
| 198 | return retval; |
| 199 | } |
| 200 | |
| 201 | static int v9fs_vfs_writepage(struct page *page, struct writeback_control *wbc) |
| 202 | { |
| 203 | int retval; |
| 204 | |
Dominique Martinet | fb89b45 | 2014-01-10 13:44:09 +0100 | [diff] [blame] | 205 | p9_debug(P9_DEBUG_VFS, "page %p\n", page); |
| 206 | |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 207 | retval = v9fs_vfs_writepage_locked(page); |
| 208 | if (retval < 0) { |
| 209 | if (retval == -EAGAIN) { |
| 210 | redirty_page_for_writepage(wbc, page); |
| 211 | retval = 0; |
| 212 | } else { |
| 213 | SetPageError(page); |
| 214 | mapping_set_error(page->mapping, retval); |
| 215 | } |
| 216 | } else |
| 217 | retval = 0; |
| 218 | |
| 219 | unlock_page(page); |
| 220 | return retval; |
| 221 | } |
| 222 | |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 223 | /** |
| 224 | * v9fs_launder_page - Writeback a dirty page |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 225 | * Returns 0 on success. |
| 226 | */ |
| 227 | |
| 228 | static int v9fs_launder_page(struct page *page) |
| 229 | { |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 230 | int retval; |
Aneesh Kumar K.V | 2efda79 | 2011-02-28 17:03:56 +0530 | [diff] [blame] | 231 | struct inode *inode = page->mapping->host; |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 232 | |
Aneesh Kumar K.V | 2efda79 | 2011-02-28 17:03:56 +0530 | [diff] [blame] | 233 | v9fs_fscache_wait_on_page_write(inode, page); |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 234 | if (clear_page_dirty_for_io(page)) { |
| 235 | retval = v9fs_vfs_writepage_locked(page); |
| 236 | if (retval) |
| 237 | return retval; |
| 238 | } |
Abhishek Kulkarni | 60e78d2 | 2009-09-23 13:00:27 -0500 | [diff] [blame] | 239 | return 0; |
| 240 | } |
| 241 | |
jvrao | 3e24ad2 | 2010-08-24 15:43:28 +0000 | [diff] [blame] | 242 | /** |
| 243 | * v9fs_direct_IO - 9P address space operation for direct I/O |
| 244 | * @rw: direction (read or write) |
| 245 | * @iocb: target I/O control block |
| 246 | * @iov: array of vectors that define I/O buffer |
| 247 | * @pos: offset in file to begin the operation |
| 248 | * @nr_segs: size of iovec array |
| 249 | * |
| 250 | * The presence of v9fs_direct_IO() in the address space ops vector |
| 251 | * allowes open() O_DIRECT flags which would have failed otherwise. |
| 252 | * |
| 253 | * In the non-cached mode, we shunt off direct read and write requests before |
| 254 | * the VFS gets them, so this method should never be called. |
| 255 | * |
| 256 | * Direct IO is not 'yet' supported in the cached mode. Hence when |
| 257 | * this routine is called through generic_file_aio_read(), the read/write fails |
| 258 | * with an error. |
| 259 | * |
| 260 | */ |
Aneesh Kumar K.V | e959b54 | 2011-02-28 17:04:04 +0530 | [diff] [blame] | 261 | static ssize_t |
Al Viro | d8d3d94 | 2014-03-04 21:27:34 -0500 | [diff] [blame^] | 262 | v9fs_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter, loff_t pos) |
jvrao | 3e24ad2 | 2010-08-24 15:43:28 +0000 | [diff] [blame] | 263 | { |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 264 | /* |
| 265 | * FIXME |
| 266 | * Now that we do caching with cache mode enabled, We need |
| 267 | * to support direct IO |
| 268 | */ |
Joe Perches | 5d38515 | 2011-11-28 10:40:46 -0800 | [diff] [blame] | 269 | p9_debug(P9_DEBUG_VFS, "v9fs_direct_IO: v9fs_direct_IO (%s) off/no(%lld/%lu) EINVAL\n", |
| 270 | iocb->ki_filp->f_path.dentry->d_name.name, |
Al Viro | d8d3d94 | 2014-03-04 21:27:34 -0500 | [diff] [blame^] | 271 | (long long)pos, iter->nr_segs); |
jvrao | 3e24ad2 | 2010-08-24 15:43:28 +0000 | [diff] [blame] | 272 | |
| 273 | return -EINVAL; |
| 274 | } |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 275 | |
| 276 | static int v9fs_write_begin(struct file *filp, struct address_space *mapping, |
| 277 | loff_t pos, unsigned len, unsigned flags, |
| 278 | struct page **pagep, void **fsdata) |
| 279 | { |
| 280 | int retval = 0; |
| 281 | struct page *page; |
Aneesh Kumar K.V | 6b39f6d | 2011-02-28 17:04:03 +0530 | [diff] [blame] | 282 | struct v9fs_inode *v9inode; |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 283 | pgoff_t index = pos >> PAGE_CACHE_SHIFT; |
| 284 | struct inode *inode = mapping->host; |
| 285 | |
Dominique Martinet | fb89b45 | 2014-01-10 13:44:09 +0100 | [diff] [blame] | 286 | |
| 287 | p9_debug(P9_DEBUG_VFS, "filp %p, mapping %p\n", filp, mapping); |
| 288 | |
Aneesh Kumar K.V | 6b39f6d | 2011-02-28 17:04:03 +0530 | [diff] [blame] | 289 | v9inode = V9FS_I(inode); |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 290 | start: |
| 291 | page = grab_cache_page_write_begin(mapping, index, flags); |
| 292 | if (!page) { |
| 293 | retval = -ENOMEM; |
| 294 | goto out; |
| 295 | } |
Aneesh Kumar K.V | 6b39f6d | 2011-02-28 17:04:03 +0530 | [diff] [blame] | 296 | BUG_ON(!v9inode->writeback_fid); |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 297 | if (PageUptodate(page)) |
| 298 | goto out; |
| 299 | |
| 300 | if (len == PAGE_CACHE_SIZE) |
| 301 | goto out; |
| 302 | |
Aneesh Kumar K.V | 6b39f6d | 2011-02-28 17:04:03 +0530 | [diff] [blame] | 303 | retval = v9fs_fid_readpage(v9inode->writeback_fid, page); |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 304 | page_cache_release(page); |
| 305 | if (!retval) |
| 306 | goto start; |
| 307 | out: |
| 308 | *pagep = page; |
| 309 | return retval; |
| 310 | } |
| 311 | |
| 312 | static int v9fs_write_end(struct file *filp, struct address_space *mapping, |
| 313 | loff_t pos, unsigned len, unsigned copied, |
| 314 | struct page *page, void *fsdata) |
| 315 | { |
| 316 | loff_t last_pos = pos + copied; |
| 317 | struct inode *inode = page->mapping->host; |
| 318 | |
Dominique Martinet | fb89b45 | 2014-01-10 13:44:09 +0100 | [diff] [blame] | 319 | p9_debug(P9_DEBUG_VFS, "filp %p, mapping %p\n", filp, mapping); |
| 320 | |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 321 | if (unlikely(copied < len)) { |
| 322 | /* |
| 323 | * zero out the rest of the area |
| 324 | */ |
| 325 | unsigned from = pos & (PAGE_CACHE_SIZE - 1); |
| 326 | |
| 327 | zero_user(page, from + copied, len - copied); |
| 328 | flush_dcache_page(page); |
| 329 | } |
| 330 | |
| 331 | if (!PageUptodate(page)) |
| 332 | SetPageUptodate(page); |
| 333 | /* |
| 334 | * No need to use i_size_read() here, the i_size |
| 335 | * cannot change under us because we hold the i_mutex. |
| 336 | */ |
| 337 | if (last_pos > inode->i_size) { |
| 338 | inode_add_bytes(inode, last_pos - inode->i_size); |
| 339 | i_size_write(inode, last_pos); |
| 340 | } |
| 341 | set_page_dirty(page); |
| 342 | unlock_page(page); |
| 343 | page_cache_release(page); |
| 344 | |
| 345 | return copied; |
| 346 | } |
| 347 | |
| 348 | |
Christoph Hellwig | f5e54d6 | 2006-06-28 04:26:44 -0700 | [diff] [blame] | 349 | const struct address_space_operations v9fs_addr_operations = { |
Aneesh Kumar K.V | 7263ceb | 2011-02-28 17:03:58 +0530 | [diff] [blame] | 350 | .readpage = v9fs_vfs_readpage, |
| 351 | .readpages = v9fs_vfs_readpages, |
| 352 | .set_page_dirty = __set_page_dirty_nobuffers, |
| 353 | .writepage = v9fs_vfs_writepage, |
| 354 | .write_begin = v9fs_write_begin, |
| 355 | .write_end = v9fs_write_end, |
| 356 | .releasepage = v9fs_release_page, |
| 357 | .invalidatepage = v9fs_invalidate_page, |
| 358 | .launder_page = v9fs_launder_page, |
| 359 | .direct_IO = v9fs_direct_IO, |
Eric Van Hensbergen | 147b31c | 2006-01-18 17:43:02 -0800 | [diff] [blame] | 360 | }; |