David Howells | ec26815 | 2007-04-26 15:49:28 -0700 | [diff] [blame] | 1 | /* AFS vnode management |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 3 | * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * Written by David Howells (dhowells@redhat.com) |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/kernel.h> |
| 13 | #include <linux/module.h> |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/slab.h> |
| 16 | #include <linux/fs.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #include "internal.h" |
| 18 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 19 | #if 0 |
| 20 | static noinline bool dump_tree_aux(struct rb_node *node, struct rb_node *parent, |
| 21 | int depth, char lr) |
| 22 | { |
| 23 | struct afs_vnode *vnode; |
| 24 | bool bad = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 26 | if (!node) |
| 27 | return false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 29 | if (node->rb_left) |
| 30 | bad = dump_tree_aux(node->rb_left, node, depth + 2, '/'); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 32 | vnode = rb_entry(node, struct afs_vnode, cb_promise); |
| 33 | kdebug("%c %*.*s%c%p {%d}", |
| 34 | rb_is_red(node) ? 'R' : 'B', |
| 35 | depth, depth, "", lr, |
| 36 | vnode, vnode->cb_expires_at); |
| 37 | if (rb_parent(node) != parent) { |
| 38 | printk("BAD: %p != %p\n", rb_parent(node), parent); |
| 39 | bad = true; |
| 40 | } |
| 41 | |
| 42 | if (node->rb_right) |
| 43 | bad |= dump_tree_aux(node->rb_right, node, depth + 2, '\\'); |
| 44 | |
| 45 | return bad; |
| 46 | } |
| 47 | |
| 48 | static noinline void dump_tree(const char *name, struct afs_server *server) |
| 49 | { |
| 50 | kenter("%s", name); |
| 51 | if (dump_tree_aux(server->cb_promises.rb_node, NULL, 0, '-')) |
| 52 | BUG(); |
| 53 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | #endif |
| 55 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | /* |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 57 | * insert a vnode into the backing server's vnode tree |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | */ |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 59 | static void afs_install_vnode(struct afs_vnode *vnode, |
| 60 | struct afs_server *server) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | { |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 62 | struct afs_server *old_server = vnode->server; |
| 63 | struct afs_vnode *xvnode; |
| 64 | struct rb_node *parent, **p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 66 | _enter("%p,%p", vnode, server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 68 | if (old_server) { |
| 69 | spin_lock(&old_server->fs_lock); |
| 70 | rb_erase(&vnode->server_rb, &old_server->fs_vnodes); |
| 71 | spin_unlock(&old_server->fs_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | } |
| 73 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 74 | afs_get_server(server); |
| 75 | vnode->server = server; |
| 76 | afs_put_server(old_server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 78 | /* insert into the server's vnode tree in FID order */ |
| 79 | spin_lock(&server->fs_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 81 | parent = NULL; |
| 82 | p = &server->fs_vnodes.rb_node; |
| 83 | while (*p) { |
| 84 | parent = *p; |
| 85 | xvnode = rb_entry(parent, struct afs_vnode, server_rb); |
| 86 | if (vnode->fid.vid < xvnode->fid.vid) |
| 87 | p = &(*p)->rb_left; |
| 88 | else if (vnode->fid.vid > xvnode->fid.vid) |
| 89 | p = &(*p)->rb_right; |
| 90 | else if (vnode->fid.vnode < xvnode->fid.vnode) |
| 91 | p = &(*p)->rb_left; |
| 92 | else if (vnode->fid.vnode > xvnode->fid.vnode) |
| 93 | p = &(*p)->rb_right; |
| 94 | else if (vnode->fid.unique < xvnode->fid.unique) |
| 95 | p = &(*p)->rb_left; |
| 96 | else if (vnode->fid.unique > xvnode->fid.unique) |
| 97 | p = &(*p)->rb_right; |
| 98 | else |
| 99 | BUG(); /* can't happen unless afs_iget() malfunctions */ |
| 100 | } |
| 101 | |
| 102 | rb_link_node(&vnode->server_rb, parent, p); |
| 103 | rb_insert_color(&vnode->server_rb, &server->fs_vnodes); |
| 104 | |
| 105 | spin_unlock(&server->fs_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | _leave(""); |
David Howells | ec26815 | 2007-04-26 15:49:28 -0700 | [diff] [blame] | 107 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | /* |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 110 | * insert a vnode into the promising server's update/expiration tree |
| 111 | * - caller must hold vnode->lock |
| 112 | */ |
| 113 | static void afs_vnode_note_promise(struct afs_vnode *vnode, |
| 114 | struct afs_server *server) |
| 115 | { |
| 116 | struct afs_server *old_server; |
| 117 | struct afs_vnode *xvnode; |
| 118 | struct rb_node *parent, **p; |
| 119 | |
| 120 | _enter("%p,%p", vnode, server); |
| 121 | |
| 122 | ASSERT(server != NULL); |
| 123 | |
| 124 | old_server = vnode->server; |
| 125 | if (vnode->cb_promised) { |
| 126 | if (server == old_server && |
| 127 | vnode->cb_expires == vnode->cb_expires_at) { |
| 128 | _leave(" [no change]"); |
| 129 | return; |
| 130 | } |
| 131 | |
| 132 | spin_lock(&old_server->cb_lock); |
| 133 | if (vnode->cb_promised) { |
| 134 | _debug("delete"); |
| 135 | rb_erase(&vnode->cb_promise, &old_server->cb_promises); |
| 136 | vnode->cb_promised = false; |
| 137 | } |
| 138 | spin_unlock(&old_server->cb_lock); |
| 139 | } |
| 140 | |
| 141 | if (vnode->server != server) |
| 142 | afs_install_vnode(vnode, server); |
| 143 | |
| 144 | vnode->cb_expires_at = vnode->cb_expires; |
| 145 | _debug("PROMISE on %p {%lu}", |
| 146 | vnode, (unsigned long) vnode->cb_expires_at); |
| 147 | |
| 148 | /* abuse an RB-tree to hold the expiration order (we may have multiple |
| 149 | * items with the same expiration time) */ |
| 150 | spin_lock(&server->cb_lock); |
| 151 | |
| 152 | parent = NULL; |
| 153 | p = &server->cb_promises.rb_node; |
| 154 | while (*p) { |
| 155 | parent = *p; |
| 156 | xvnode = rb_entry(parent, struct afs_vnode, cb_promise); |
| 157 | if (vnode->cb_expires_at < xvnode->cb_expires_at) |
| 158 | p = &(*p)->rb_left; |
| 159 | else |
| 160 | p = &(*p)->rb_right; |
| 161 | } |
| 162 | |
| 163 | rb_link_node(&vnode->cb_promise, parent, p); |
| 164 | rb_insert_color(&vnode->cb_promise, &server->cb_promises); |
| 165 | vnode->cb_promised = true; |
| 166 | |
| 167 | spin_unlock(&server->cb_lock); |
| 168 | _leave(""); |
| 169 | } |
| 170 | |
| 171 | /* |
| 172 | * handle remote file deletion by discarding the callback promise |
| 173 | */ |
| 174 | static void afs_vnode_deleted_remotely(struct afs_vnode *vnode) |
| 175 | { |
| 176 | struct afs_server *server; |
| 177 | |
| 178 | set_bit(AFS_VNODE_DELETED, &vnode->flags); |
| 179 | |
| 180 | server = vnode->server; |
| 181 | if (vnode->cb_promised) { |
| 182 | spin_lock(&server->cb_lock); |
| 183 | if (vnode->cb_promised) { |
| 184 | rb_erase(&vnode->cb_promise, &server->cb_promises); |
| 185 | vnode->cb_promised = false; |
| 186 | } |
| 187 | spin_unlock(&server->cb_lock); |
| 188 | } |
| 189 | |
| 190 | afs_put_server(server); |
| 191 | } |
| 192 | |
| 193 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | * finish off updating the recorded status of a file |
| 195 | * - starts callback expiry timer |
| 196 | * - adds to server's callback list |
| 197 | */ |
| 198 | static void afs_vnode_finalise_status_update(struct afs_vnode *vnode, |
| 199 | struct afs_server *server, |
| 200 | int ret) |
| 201 | { |
| 202 | struct afs_server *oldserver = NULL; |
| 203 | |
| 204 | _enter("%p,%p,%d", vnode, server, ret); |
| 205 | |
| 206 | spin_lock(&vnode->lock); |
| 207 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 208 | clear_bit(AFS_VNODE_CB_BROKEN, &vnode->flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 210 | switch (ret) { |
| 211 | case 0: |
| 212 | afs_vnode_note_promise(vnode, server); |
| 213 | break; |
| 214 | case -ENOENT: |
| 215 | /* the file was deleted on the server */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | _debug("got NOENT from server - marking file deleted"); |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 217 | afs_vnode_deleted_remotely(vnode); |
| 218 | break; |
| 219 | default: |
| 220 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | vnode->update_cnt--; |
| 224 | |
| 225 | spin_unlock(&vnode->lock); |
| 226 | |
| 227 | wake_up_all(&vnode->update_waitq); |
| 228 | |
| 229 | afs_put_server(oldserver); |
| 230 | |
| 231 | _leave(""); |
David Howells | ec26815 | 2007-04-26 15:49:28 -0700 | [diff] [blame] | 232 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | /* |
| 235 | * fetch file status from the volume |
| 236 | * - don't issue a fetch if: |
| 237 | * - the changed bit is not set and there's a valid callback |
| 238 | * - there are any outstanding ops that will fetch the status |
| 239 | * - TODO implement local caching |
| 240 | */ |
David Howells | 00d3b7a | 2007-04-26 15:57:07 -0700 | [diff] [blame^] | 241 | int afs_vnode_fetch_status(struct afs_vnode *vnode, |
| 242 | struct afs_vnode *auth_vnode, struct key *key) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | { |
| 244 | struct afs_server *server; |
David Howells | 00d3b7a | 2007-04-26 15:57:07 -0700 | [diff] [blame^] | 245 | unsigned long acl_order; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | int ret; |
| 247 | |
| 248 | DECLARE_WAITQUEUE(myself, current); |
| 249 | |
| 250 | _enter("%s,{%u,%u,%u}", |
| 251 | vnode->volume->vlocation->vldb.name, |
| 252 | vnode->fid.vid, vnode->fid.vnode, vnode->fid.unique); |
| 253 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 254 | if (!test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags) && |
| 255 | vnode->cb_promised) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | _leave(" [unchanged]"); |
| 257 | return 0; |
| 258 | } |
| 259 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 260 | if (test_bit(AFS_VNODE_DELETED, &vnode->flags)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | _leave(" [deleted]"); |
| 262 | return -ENOENT; |
| 263 | } |
| 264 | |
David Howells | 00d3b7a | 2007-04-26 15:57:07 -0700 | [diff] [blame^] | 265 | acl_order = 0; |
| 266 | if (auth_vnode) |
| 267 | acl_order = auth_vnode->acl_order; |
| 268 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | spin_lock(&vnode->lock); |
| 270 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 271 | if (!test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags) && |
| 272 | vnode->cb_promised) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | spin_unlock(&vnode->lock); |
| 274 | _leave(" [unchanged]"); |
| 275 | return 0; |
| 276 | } |
| 277 | |
| 278 | if (vnode->update_cnt > 0) { |
| 279 | /* someone else started a fetch */ |
| 280 | set_current_state(TASK_UNINTERRUPTIBLE); |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 281 | ASSERT(myself.func != NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | add_wait_queue(&vnode->update_waitq, &myself); |
| 283 | |
| 284 | /* wait for the status to be updated */ |
| 285 | for (;;) { |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 286 | if (!test_bit(AFS_VNODE_CB_BROKEN, &vnode->flags)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | break; |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 288 | if (test_bit(AFS_VNODE_DELETED, &vnode->flags)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | break; |
| 290 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 291 | /* check to see if it got updated and invalidated all |
| 292 | * before we saw it */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | if (vnode->update_cnt == 0) { |
| 294 | remove_wait_queue(&vnode->update_waitq, |
| 295 | &myself); |
| 296 | set_current_state(TASK_RUNNING); |
| 297 | goto get_anyway; |
| 298 | } |
| 299 | |
| 300 | spin_unlock(&vnode->lock); |
| 301 | |
| 302 | schedule(); |
| 303 | set_current_state(TASK_UNINTERRUPTIBLE); |
| 304 | |
| 305 | spin_lock(&vnode->lock); |
| 306 | } |
| 307 | |
| 308 | remove_wait_queue(&vnode->update_waitq, &myself); |
| 309 | spin_unlock(&vnode->lock); |
| 310 | set_current_state(TASK_RUNNING); |
| 311 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 312 | return test_bit(AFS_VNODE_DELETED, &vnode->flags) ? |
| 313 | -ENOENT : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | } |
| 315 | |
David Howells | ec26815 | 2007-04-26 15:49:28 -0700 | [diff] [blame] | 316 | get_anyway: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | /* okay... we're going to have to initiate the op */ |
| 318 | vnode->update_cnt++; |
| 319 | |
| 320 | spin_unlock(&vnode->lock); |
| 321 | |
| 322 | /* merge AFS status fetches and clear outstanding callback on this |
| 323 | * vnode */ |
| 324 | do { |
| 325 | /* pick a server to query */ |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 326 | server = afs_volume_pick_fileserver(vnode); |
| 327 | if (IS_ERR(server)) |
| 328 | return PTR_ERR(server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 330 | _debug("USING SERVER: %p{%08x}", |
| 331 | server, ntohl(server->addr.s_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | |
David Howells | 00d3b7a | 2007-04-26 15:57:07 -0700 | [diff] [blame^] | 333 | ret = afs_fs_fetch_file_status(server, key, vnode, NULL, |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 334 | &afs_sync_call); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 336 | } while (!afs_volume_release_fileserver(vnode, server, ret)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | |
| 338 | /* adjust the flags */ |
David Howells | 00d3b7a | 2007-04-26 15:57:07 -0700 | [diff] [blame^] | 339 | if (ret == 0 && auth_vnode) |
| 340 | afs_cache_permit(vnode, key, acl_order); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | afs_vnode_finalise_status_update(vnode, server, ret); |
| 342 | |
| 343 | _leave(" = %d", ret); |
| 344 | return ret; |
David Howells | ec26815 | 2007-04-26 15:49:28 -0700 | [diff] [blame] | 345 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | /* |
| 348 | * fetch file data from the volume |
| 349 | * - TODO implement caching and server failover |
| 350 | */ |
David Howells | 00d3b7a | 2007-04-26 15:57:07 -0700 | [diff] [blame^] | 351 | int afs_vnode_fetch_data(struct afs_vnode *vnode, struct key *key, |
| 352 | off_t offset, size_t length, struct page *page) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | { |
| 354 | struct afs_server *server; |
| 355 | int ret; |
| 356 | |
David Howells | 00d3b7a | 2007-04-26 15:57:07 -0700 | [diff] [blame^] | 357 | _enter("%s{%u,%u,%u},%x,,,", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | vnode->volume->vlocation->vldb.name, |
| 359 | vnode->fid.vid, |
| 360 | vnode->fid.vnode, |
David Howells | 00d3b7a | 2007-04-26 15:57:07 -0700 | [diff] [blame^] | 361 | vnode->fid.unique, |
| 362 | key_serial(key)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | |
| 364 | /* this op will fetch the status */ |
| 365 | spin_lock(&vnode->lock); |
| 366 | vnode->update_cnt++; |
| 367 | spin_unlock(&vnode->lock); |
| 368 | |
| 369 | /* merge in AFS status fetches and clear outstanding callback on this |
| 370 | * vnode */ |
| 371 | do { |
| 372 | /* pick a server to query */ |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 373 | server = afs_volume_pick_fileserver(vnode); |
| 374 | if (IS_ERR(server)) |
| 375 | return PTR_ERR(server); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | |
| 377 | _debug("USING SERVER: %08x\n", ntohl(server->addr.s_addr)); |
| 378 | |
David Howells | 00d3b7a | 2007-04-26 15:57:07 -0700 | [diff] [blame^] | 379 | ret = afs_fs_fetch_data(server, key, vnode, offset, length, |
| 380 | page, NULL, &afs_sync_call); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | |
David Howells | 08e0e7c | 2007-04-26 15:55:03 -0700 | [diff] [blame] | 382 | } while (!afs_volume_release_fileserver(vnode, server, ret)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | |
| 384 | /* adjust the flags */ |
| 385 | afs_vnode_finalise_status_update(vnode, server, ret); |
| 386 | |
| 387 | _leave(" = %d", ret); |
| 388 | return ret; |
David Howells | ec26815 | 2007-04-26 15:49:28 -0700 | [diff] [blame] | 389 | } |