| 1 | /* |
| 2 | * Copyright 2000, International Business Machines Corporation and others. |
| 3 | * All Rights Reserved. |
| 4 | * |
| 5 | * This software has been released under the terms of the IBM Public |
| 6 | * License. For details, see the LICENSE file in the top-level source |
| 7 | * directory or online at http://www.openafs.org/dl/license10.html |
| 8 | */ |
| 9 | |
| 10 | /* |
| 11 | * SGI specific vnodeops + other misc interface glue |
| 12 | */ |
| 13 | #include <afsconfig.h> |
| 14 | #include "afs/param.h" |
| 15 | |
| 16 | |
| 17 | #ifdef AFS_SGI62_ENV |
| 18 | #include "afs/sysincludes.h" /* Standard vendor system headers */ |
| 19 | #include "afsincludes.h" /* Afs-based standard headers */ |
| 20 | #include "afs/afs_stats.h" /* statistics */ |
| 21 | #include "sys/flock.h" |
| 22 | #include "afs/nfsclient.h" |
| 23 | |
| 24 | /* AFSBSIZE must be at least the size of a page, else the client will hang. |
| 25 | * For 64 bit platforms, the page size is more than 8K. |
| 26 | */ |
| 27 | #define AFSBSIZE _PAGESZ |
| 28 | extern struct afs_exporter *root_exported; |
| 29 | extern void afs_chkpgoob(vnode_t *, pgno_t); |
| 30 | |
| 31 | static void afs_strategy(); |
| 32 | static int afs_xread(), afs_xwrite(); |
| 33 | static int afs_xbmap(), afs_map(), afs_reclaim(); |
| 34 | #ifndef AFS_SGI65_ENV |
| 35 | static int afs_addmap(), afs_delmap(); |
| 36 | #endif |
| 37 | extern int afs_open(), afs_close(), afs_ioctl(), afs_getattr(), afs_setattr(); |
| 38 | extern int afs_access(), afs_lookup(); |
| 39 | extern int afs_create(), afs_remove(), afs_link(), afs_rename(); |
| 40 | extern int afs_mkdir(), afs_rmdir(), afs_readdir(); |
| 41 | extern int afs_symlink(), afs_readlink(), afs_fsync(), afs_fid(), |
| 42 | afs_frlock(); |
| 43 | static int afs_seek(OSI_VC_DECL(a), off_t b, off_t * c); |
| 44 | #ifdef AFS_SGI64_ENV |
| 45 | extern int afs_xinactive(); |
| 46 | #else |
| 47 | extern void afs_xinactive(); |
| 48 | #endif |
| 49 | |
| 50 | extern void afs_rwlock(OSI_VN_DECL(vp), AFS_RWLOCK_T b); |
| 51 | extern void afs_rwunlock(OSI_VN_DECL(vp), AFS_RWLOCK_T b); |
| 52 | |
| 53 | extern int afs_fid2(); |
| 54 | |
| 55 | static int afsrwvp(struct vcache *avc, struct uio *uio, |
| 56 | enum uio_rw rw, int ioflag, |
| 57 | #ifdef AFS_SGI64_ENV |
| 58 | struct cred *cr, struct flid *flp); |
| 59 | #else |
| 60 | struct cred *cr); |
| 61 | #endif |
| 62 | #ifdef MP |
| 63 | static void mp_afs_rwlock(OSI_VN_DECL(a), AFS_RWLOCK_T b); |
| 64 | static void mp_afs_rwunlock(OSI_VN_DECL(a), AFS_RWLOCK_T b); |
| 65 | struct vnodeops afs_lockedvnodeops = |
| 66 | #else |
| 67 | struct vnodeops Afs_vnodeops = |
| 68 | #endif |
| 69 | { |
| 70 | #ifdef AFS_SGI64_ENV |
| 71 | #ifdef AFS_SGI65_ENV |
| 72 | BHV_IDENTITY_INIT_POSITION(VNODE_POSITION_BASE), |
| 73 | #else |
| 74 | VNODE_POSITION_BASE, |
| 75 | #endif |
| 76 | #endif |
| 77 | afs_open, |
| 78 | afs_close, |
| 79 | afs_xread, |
| 80 | afs_xwrite, |
| 81 | afs_ioctl, |
| 82 | fs_setfl, |
| 83 | afs_getattr, |
| 84 | afs_setattr, |
| 85 | afs_access, |
| 86 | afs_lookup, |
| 87 | afs_create, |
| 88 | afs_remove, |
| 89 | afs_link, |
| 90 | afs_rename, |
| 91 | afs_mkdir, |
| 92 | afs_rmdir, |
| 93 | afs_readdir, |
| 94 | afs_symlink, |
| 95 | afs_readlink, |
| 96 | afs_fsync, |
| 97 | afs_xinactive, |
| 98 | afs_fid, |
| 99 | afs_fid2, |
| 100 | afs_rwlock, |
| 101 | afs_rwunlock, |
| 102 | afs_seek, |
| 103 | fs_cmp, |
| 104 | afs_frlock, |
| 105 | fs_nosys, /* realvp */ |
| 106 | afs_xbmap, |
| 107 | afs_strategy, |
| 108 | afs_map, |
| 109 | #ifdef AFS_SGI65_ENV |
| 110 | fs_noerr, /* addmap - devices only */ |
| 111 | fs_noerr, /* delmap - devices only */ |
| 112 | #else |
| 113 | afs_addmap, |
| 114 | afs_delmap, |
| 115 | #endif |
| 116 | fs_poll, /* poll */ |
| 117 | fs_nosys, /* dump */ |
| 118 | fs_pathconf, |
| 119 | fs_nosys, /* allocstore */ |
| 120 | fs_nosys, /* fcntl */ |
| 121 | afs_reclaim, /* reclaim */ |
| 122 | fs_nosys, /* attr_get */ |
| 123 | fs_nosys, /* attr_set */ |
| 124 | fs_nosys, /* attr_remove */ |
| 125 | fs_nosys, /* attr_list */ |
| 126 | #ifdef AFS_SGI64_ENV |
| 127 | #ifdef AFS_SGI65_ENV |
| 128 | fs_cover, |
| 129 | (vop_link_removed_t) fs_noval, |
| 130 | fs_vnode_change, |
| 131 | fs_tosspages, |
| 132 | fs_flushinval_pages, |
| 133 | fs_flush_pages, |
| 134 | fs_invalfree_pages, |
| 135 | fs_pages_sethole, |
| 136 | (vop_commit_t) fs_nosys, |
| 137 | (vop_readbuf_t) fs_nosys, |
| 138 | fs_strgetmsg, |
| 139 | fs_strputmsg, |
| 140 | #else |
| 141 | fs_mount, |
| 142 | #endif |
| 143 | #endif |
| 144 | }; |
| 145 | |
| 146 | #ifndef MP |
| 147 | struct vnodeops *afs_ops = &Afs_vnodeops; |
| 148 | #endif |
| 149 | |
| 150 | int |
| 151 | afs_frlock(OSI_VN_DECL(vp), int cmd, struct flock *lfp, int flag, |
| 152 | off_t offset, |
| 153 | #ifdef AFS_SGI65_ENV |
| 154 | vrwlock_t vrwlock, |
| 155 | #endif |
| 156 | cred_t * cr) |
| 157 | { |
| 158 | int error; |
| 159 | OSI_VN_CONVERT(vp); |
| 160 | #ifdef AFS_SGI65_ENV |
| 161 | struct flid flid; |
| 162 | int pid; |
| 163 | get_current_flid(&flid); |
| 164 | pid = flid.fl_pid; |
| 165 | #endif |
| 166 | |
| 167 | /* |
| 168 | * Since AFS doesn't support byte-wise locks (and simply |
| 169 | * says yes! we handle byte locking locally only. |
| 170 | * This makes lots of things work much better |
| 171 | * XXX This doesn't properly handle moving from a |
| 172 | * byte-wise lock up to a full file lock (we should |
| 173 | * remove the byte locks ..) Of course neither did the |
| 174 | * regular AFS way ... |
| 175 | * |
| 176 | * For GETLK we do a bit more - we first check any byte-wise |
| 177 | * locks - if none then check for full AFS file locks |
| 178 | */ |
| 179 | if (cmd == F_GETLK || lfp->l_whence != 0 || lfp->l_start != 0 |
| 180 | || (lfp->l_len != MAXEND && lfp->l_len != 0)) { |
| 181 | AFS_RWLOCK(vp, VRWLOCK_WRITE); |
| 182 | AFS_GUNLOCK(); |
| 183 | #ifdef AFS_SGI65_ENV |
| 184 | error = |
| 185 | fs_frlock(OSI_VN_ARG(vp), cmd, lfp, flag, offset, vrwlock, cr); |
| 186 | #else |
| 187 | error = fs_frlock(vp, cmd, lfp, flag, offset, cr); |
| 188 | #endif |
| 189 | AFS_GLOCK(); |
| 190 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 191 | if (error || cmd != F_GETLK) |
| 192 | return error; |
| 193 | if (lfp->l_type != F_UNLCK) |
| 194 | /* found some blocking lock */ |
| 195 | return 0; |
| 196 | /* fall through to check for full AFS file locks */ |
| 197 | } |
| 198 | |
| 199 | /* map BSD style to plain - we don't call reclock() |
| 200 | * and its only there that the difference is important |
| 201 | */ |
| 202 | switch (cmd) { |
| 203 | case F_GETLK: |
| 204 | case F_RGETLK: |
| 205 | break; |
| 206 | case F_SETLK: |
| 207 | case F_RSETLK: |
| 208 | break; |
| 209 | case F_SETBSDLK: |
| 210 | cmd = F_SETLK; |
| 211 | break; |
| 212 | case F_SETLKW: |
| 213 | case F_RSETLKW: |
| 214 | break; |
| 215 | case F_SETBSDLKW: |
| 216 | cmd = F_SETLKW; |
| 217 | break; |
| 218 | default: |
| 219 | return EINVAL; |
| 220 | } |
| 221 | |
| 222 | AFS_GUNLOCK(); |
| 223 | |
| 224 | error = convoff(vp, lfp, 0, offset, SEEKLIMIT |
| 225 | #ifdef AFS_SGI64_ENV |
| 226 | , OSI_GET_CURRENT_CRED() |
| 227 | #endif /* AFS_SGI64_ENV */ |
| 228 | ); |
| 229 | |
| 230 | AFS_GLOCK(); |
| 231 | if (!error) { |
| 232 | #ifdef AFS_SGI65_ENV |
| 233 | error = afs_lockctl(vp, lfp, cmd, cr, pid); |
| 234 | #else |
| 235 | error = afs_lockctl(vp, lfp, cmd, cr, OSI_GET_CURRENT_PID()); |
| 236 | #endif |
| 237 | } |
| 238 | return error; |
| 239 | } |
| 240 | |
| 241 | |
| 242 | /* |
| 243 | * We need to get the cache hierarchy right. |
| 244 | * First comes the page cache - pages are hashed based on afs |
| 245 | * vnode and offset. It is important to have things hashed here |
| 246 | * for the VM/paging system to work. |
| 247 | * Note that the paging system calls VOP_READ with the UIO_NOSPACE - |
| 248 | * it simply requires that somehow the page is hashed |
| 249 | * upon successful return. |
| 250 | * This means in afs_read we |
| 251 | * must call the 'chunk' code that handles page insertion. In order |
| 252 | * to actually get the data, 'chunk' calls the VOP_STRATEGY routine. |
| 253 | * This is basically the std afs_read routine - validating and |
| 254 | * getting the info into the Dcache, then calling VOP_READ. |
| 255 | * The only bad thing here is that by calling VOP_READ (and VOP_WRITE |
| 256 | * to fill the cache) we will get 2 copies of these pages into the |
| 257 | * page cache - one hashed on afs vnode and one on efs vnode. THis |
| 258 | * is wasteful but does no harm. A potential solution involves |
| 259 | * causing an ASYNC flush of the newly fetched cache data and |
| 260 | * doing direct I/O on the read side.... |
| 261 | */ |
| 262 | /* ARGSUSED */ |
| 263 | #ifdef AFS_SGI64_ENV |
| 264 | static int |
| 265 | afs_xread(OSI_VC_ARG(avc), uiop, ioflag, cr, flp) |
| 266 | struct flid *flp; |
| 267 | #else |
| 268 | static int |
| 269 | afs_xread(OSI_VC_ARG(avc), uiop, ioflag, cr) |
| 270 | #endif |
| 271 | OSI_VC_DECL(avc); |
| 272 | struct uio *uiop; |
| 273 | int ioflag; |
| 274 | struct cred *cr; |
| 275 | { |
| 276 | int code; |
| 277 | OSI_VC_CONVERT(avc); |
| 278 | |
| 279 | osi_Assert(avc->v.v_count > 0); |
| 280 | if (avc->v.v_type != VREG) |
| 281 | return EISDIR; |
| 282 | |
| 283 | #ifdef AFS_SGI64_ENV |
| 284 | #ifdef AFS_SGI65_ENV |
| 285 | if (!(ioflag & IO_ISLOCKED)) |
| 286 | AFS_RWLOCK((vnode_t *) avc, VRWLOCK_READ); |
| 287 | #endif |
| 288 | code = afsrwvp(avc, uiop, UIO_READ, ioflag, cr, flp); |
| 289 | #ifdef AFS_SGI65_ENV |
| 290 | if (!(ioflag & IO_ISLOCKED)) |
| 291 | AFS_RWUNLOCK((vnode_t *) avc, VRWLOCK_READ); |
| 292 | #endif |
| 293 | #else |
| 294 | code = afsrwvp(avc, uiop, UIO_READ, ioflag, cr); |
| 295 | #endif |
| 296 | return code; |
| 297 | } |
| 298 | |
| 299 | /* ARGSUSED */ |
| 300 | #ifdef AFS_SGI64_ENV |
| 301 | static int |
| 302 | afs_xwrite(OSI_VC_ARG(avc), uiop, ioflag, cr, flp) |
| 303 | struct flid *flp; |
| 304 | #else |
| 305 | static int |
| 306 | afs_xwrite(OSI_VC_ARG(avc), uiop, ioflag, cr) |
| 307 | #endif |
| 308 | OSI_VC_DECL(avc); |
| 309 | struct uio *uiop; |
| 310 | int ioflag; |
| 311 | struct cred *cr; |
| 312 | { |
| 313 | int code; |
| 314 | OSI_VC_CONVERT(avc); |
| 315 | |
| 316 | osi_Assert(avc->v.v_count > 0); |
| 317 | if (avc->v.v_type != VREG) |
| 318 | return EISDIR; |
| 319 | |
| 320 | if (ioflag & IO_APPEND) |
| 321 | uiop->uio_offset = avc->f.m.Length; |
| 322 | #ifdef AFS_SGI64_ENV |
| 323 | #ifdef AFS_SGI65_ENV |
| 324 | if (!(ioflag & IO_ISLOCKED)) |
| 325 | AFS_RWLOCK(((vnode_t *) avc), VRWLOCK_WRITE); |
| 326 | #endif |
| 327 | code = afsrwvp(avc, uiop, UIO_WRITE, ioflag, cr, flp); |
| 328 | #ifdef AFS_SGI65_ENV |
| 329 | if (!(ioflag & IO_ISLOCKED)) |
| 330 | AFS_RWUNLOCK((vnode_t *) avc, VRWLOCK_WRITE); |
| 331 | #endif |
| 332 | #else |
| 333 | code = afsrwvp(avc, uiop, UIO_WRITE, ioflag, cr); |
| 334 | #endif |
| 335 | return code; |
| 336 | } |
| 337 | |
| 338 | static int prra = 0; |
| 339 | static int prnra = 0; |
| 340 | static int acchk = 0; |
| 341 | static int acdrop = 0; |
| 342 | |
| 343 | static int |
| 344 | afsrwvp(struct vcache *avc, struct uio *uio, enum uio_rw rw, |
| 345 | int ioflag, |
| 346 | #ifdef AFS_SGI64_ENV |
| 347 | struct cred *cr, struct flid *flp) |
| 348 | #else |
| 349 | struct cred *cr) |
| 350 | #endif |
| 351 | { |
| 352 | struct vnode *vp = AFSTOV(avc); |
| 353 | struct buf *bp; |
| 354 | daddr_t bn; |
| 355 | off_t acnt, cnt; |
| 356 | off_t off, newoff; |
| 357 | off_t bsize, rem, len; |
| 358 | int error; |
| 359 | struct bmapval bmv[2]; |
| 360 | int nmaps, didFakeOpen = 0; |
| 361 | struct vrequest treq; |
| 362 | struct dcache *tdc; |
| 363 | int counter = 0; |
| 364 | |
| 365 | osi_Assert((valusema(&avc->vc_rwlock) <= 0) |
| 366 | && (OSI_GET_LOCKID() == avc->vc_rwlockid)); |
| 367 | |
| 368 | |
| 369 | newoff = uio->uio_resid + uio->uio_offset; |
| 370 | if (uio->uio_resid <= 0) { |
| 371 | return (0); |
| 372 | } |
| 373 | if (uio->uio_offset < 0 || newoff < 0) { |
| 374 | return (EINVAL); |
| 375 | } |
| 376 | if (ioflag & IO_DIRECT) |
| 377 | return EINVAL; |
| 378 | |
| 379 | if (rw == UIO_WRITE && vp->v_type == VREG && newoff > uio->uio_limit) { |
| 380 | return (EFBIG); |
| 381 | } |
| 382 | |
| 383 | afs_Trace4(afs_iclSetp, CM_TRACE_GRDWR, ICL_TYPE_POINTER, avc, |
| 384 | ICL_TYPE_INT32, ioflag, ICL_TYPE_INT32, rw, ICL_TYPE_INT32, 0); |
| 385 | |
| 386 | /* get a validated vcache entry */ |
| 387 | error = afs_InitReq(&treq, cr); |
| 388 | if (error) |
| 389 | return afs_CheckCode(error, NULL, 63); |
| 390 | |
| 391 | error = afs_VerifyVCache(avc, &treq); |
| 392 | if (error) |
| 393 | return afs_CheckCode(error, &treq, 51); |
| 394 | |
| 395 | /* |
| 396 | * flush any stale pages - this will unmap |
| 397 | * and invalidate all pages for vp (NOT writing them back!) |
| 398 | */ |
| 399 | osi_FlushPages(avc, cr); |
| 400 | |
| 401 | if (cr && AFS_NFSXLATORREQ(cr) && rw == UIO_READ) { |
| 402 | if (!afs_AccessOK |
| 403 | (avc, PRSFS_READ, &treq, |
| 404 | CHECK_MODE_BITS | CMB_ALLOW_EXEC_AS_READ)) |
| 405 | return EACCES; |
| 406 | } |
| 407 | /* |
| 408 | * To handle anonymous calls to VOP_STRATEGY from afs_sync/sync/bdflush |
| 409 | * we need better than the callers credentials. So we squirrel away |
| 410 | * the last writers credentials |
| 411 | */ |
| 412 | if (rw == UIO_WRITE || (rw == UIO_READ && avc->cred == NULL)) { |
| 413 | ObtainWriteLock(&avc->lock, 92); |
| 414 | if (avc->cred) |
| 415 | crfree(avc->cred); |
| 416 | crhold(cr); |
| 417 | avc->cred = cr; |
| 418 | ReleaseWriteLock(&avc->lock); |
| 419 | } |
| 420 | |
| 421 | /* |
| 422 | * We have to bump the open/exwriters field here |
| 423 | * courtesy of the nfs xlator |
| 424 | * because there're no open/close nfs rpc's to call our afs_open/close. |
| 425 | */ |
| 426 | if (root_exported && rw == UIO_WRITE) { |
| 427 | ObtainWriteLock(&avc->lock, 234); |
| 428 | if (root_exported) { |
| 429 | didFakeOpen = 1; |
| 430 | afs_FakeOpen(avc); |
| 431 | } |
| 432 | ReleaseWriteLock(&avc->lock); |
| 433 | } |
| 434 | error = 0; |
| 435 | |
| 436 | if (rw == UIO_WRITE) { |
| 437 | ObtainWriteLock(&avc->lock, 330); |
| 438 | avc->f.states |= CDirty; |
| 439 | ReleaseWriteLock(&avc->lock); |
| 440 | } |
| 441 | |
| 442 | AFS_GUNLOCK(); |
| 443 | |
| 444 | do { |
| 445 | /* If v_dpages is set SGI 5.3 will convert those pages to |
| 446 | * B_DELWRI in chunkread and getchunk. Write the pages out |
| 447 | * before we trigger that behavior. For 6.1, dirty pages stay |
| 448 | * around too long and we should get rid of them as quickly |
| 449 | * as possible. |
| 450 | */ |
| 451 | while (VN_GET_DPAGES(vp)) |
| 452 | pdflush(vp, 0); |
| 453 | |
| 454 | if (avc->vc_error) { |
| 455 | error = avc->vc_error; |
| 456 | break; |
| 457 | } |
| 458 | bsize = AFSBSIZE; /* why not?? */ |
| 459 | off = uio->uio_offset % bsize; |
| 460 | bn = BTOBBT(uio->uio_offset - off); |
| 461 | /* |
| 462 | * decrease bsize - otherwise we will |
| 463 | * get 'extra' pages in the cache for this |
| 464 | * vnode that we would need to flush when |
| 465 | * calling e.g. ptossvp. |
| 466 | * So we can use Length in ptossvp, |
| 467 | * we make sure we never go more than to the file size |
| 468 | * rounded up to a page boundary. |
| 469 | * That doesn't quite work, since we may get a page hashed to |
| 470 | * the vnode w/o updating the length. Thus we always use |
| 471 | * MAXLONG in ptossvp to be safe. |
| 472 | */ |
| 473 | if (rw == UIO_READ) { |
| 474 | /* |
| 475 | * read/paging in a normal file |
| 476 | */ |
| 477 | rem = avc->f.m.Length - uio->uio_offset; |
| 478 | if (rem <= 0) |
| 479 | /* EOF */ |
| 480 | break; |
| 481 | /* |
| 482 | * compute minimum of rest of block and rest of file |
| 483 | */ |
| 484 | cnt = MIN(bsize - off, rem); |
| 485 | osi_Assert((off + cnt) <= bsize); |
| 486 | bsize = ctob(btoc(off + cnt)); |
| 487 | len = BTOBBT(bsize); |
| 488 | nmaps = 1; |
| 489 | bmv[0].bn = bmv[0].offset = bn; |
| 490 | bmv[0].length = len; |
| 491 | bmv[0].bsize = bsize; |
| 492 | bmv[0].pboff = off; |
| 493 | bmv[0].pbsize = MIN(cnt, uio->uio_resid); |
| 494 | bmv[0].eof = 0; |
| 495 | #ifdef AFS_SGI64_ENV |
| 496 | bmv[0].pbdev = vp->v_rdev; |
| 497 | bmv[0].pmp = uio->uio_pmp; |
| 498 | #endif |
| 499 | osi_Assert(cnt > 0); |
| 500 | /* |
| 501 | * initiate read-ahead if it looks like |
| 502 | * we are reading sequentially OR they want |
| 503 | * more than one 'bsize' (==AFSBSIZE) worth |
| 504 | * XXXHack - to avoid DELWRI buffers we can't |
| 505 | * do read-ahead on any file that has potentially |
| 506 | * dirty mmap pages. |
| 507 | */ |
| 508 | if ((avc->lastr + BTOBB(AFSBSIZE) == bn |
| 509 | || uio->uio_resid > AFSBSIZE) |
| 510 | #ifdef AFS_SGI61_ENV |
| 511 | && (!AFS_VN_MAPPED(vp)) |
| 512 | #else /* AFS_SGI61_ENV */ |
| 513 | && ((vp->v_flag & VWASMAP) == 0) |
| 514 | #endif /* AFS_SGI61_ENV */ |
| 515 | ) { |
| 516 | rem -= cnt; |
| 517 | if (rem > 0) { |
| 518 | bsize = AFSBSIZE; |
| 519 | bmv[1].bn = bmv[1].offset = bn + len; |
| 520 | osi_Assert((BBTOB(bn + len) % bsize) == 0); |
| 521 | acnt = MIN(bsize, rem); |
| 522 | bsize = ctob(btoc(acnt)); |
| 523 | len = BTOBBT(bsize); |
| 524 | nmaps = 2; |
| 525 | bmv[1].length = len; |
| 526 | bmv[1].eof = 0; |
| 527 | bmv[1].bsize = bsize; |
| 528 | bmv[1].pboff = 0; |
| 529 | bmv[1].pbsize = acnt; |
| 530 | #ifdef AFS_SGI64_ENV |
| 531 | bmv[1].pmp = uio->uio_pmp; |
| 532 | bmv[1].pbdev = vp->v_rdev; |
| 533 | #endif |
| 534 | } |
| 535 | } |
| 536 | #ifdef DEBUG |
| 537 | else if (prnra) |
| 538 | printf |
| 539 | ("NRA:vp 0x%x lastr %d bn %d len %d cnt %d bsize %d rem %d resid %d\n", |
| 540 | vp, avc->lastr, bn, len, cnt, bsize, rem, |
| 541 | uio->uio_resid); |
| 542 | #endif |
| 543 | |
| 544 | avc->lastr = bn; |
| 545 | bp = chunkread(vp, bmv, nmaps, cr); |
| 546 | /* |
| 547 | * If at a chunk boundary, start prefetch of next chunk. |
| 548 | */ |
| 549 | if (counter == 0 || AFS_CHUNKOFFSET(off) == 0) { |
| 550 | AFS_GLOCK(); |
| 551 | ObtainWriteLock(&avc->lock, 562); |
| 552 | tdc = afs_FindDCache(avc, off); |
| 553 | if (tdc) { |
| 554 | if (!(tdc->mflags & DFNextStarted)) |
| 555 | afs_PrefetchChunk(avc, tdc, cr, &treq); |
| 556 | afs_PutDCache(tdc); |
| 557 | } |
| 558 | ReleaseWriteLock(&avc->lock); |
| 559 | AFS_GUNLOCK(); |
| 560 | } |
| 561 | counter++; |
| 562 | } else { |
| 563 | /* |
| 564 | * writing a normal file |
| 565 | */ |
| 566 | /* |
| 567 | * Purge dirty chunks of file if there are too many dirty chunks. |
| 568 | * Inside the write loop, we only do this at a chunk boundary. |
| 569 | * Clean up partial chunk if necessary at end of loop. |
| 570 | */ |
| 571 | if (counter > 0 && AFS_CHUNKOFFSET(uio->uio_offset) == 0) { |
| 572 | AFS_GLOCK(); |
| 573 | ObtainWriteLock(&avc->lock, 90); |
| 574 | error = afs_DoPartialWrite(avc, &treq); |
| 575 | if (error == 0) |
| 576 | avc->f.states |= CDirty; |
| 577 | ReleaseWriteLock(&avc->lock); |
| 578 | AFS_GUNLOCK(); |
| 579 | if (error) |
| 580 | break; |
| 581 | } |
| 582 | counter++; |
| 583 | |
| 584 | cnt = MIN(bsize - off, uio->uio_resid); |
| 585 | bsize = ctob(btoc(off + cnt)); |
| 586 | len = BTOBBT(bsize); |
| 587 | bmv[0].bn = bn; |
| 588 | bmv[0].offset = bn; |
| 589 | bmv[0].length = len; |
| 590 | bmv[0].eof = 0; |
| 591 | bmv[0].bsize = bsize; |
| 592 | bmv[0].pboff = off; |
| 593 | bmv[0].pbsize = cnt; |
| 594 | #ifdef AFS_SGI64_ENV |
| 595 | bmv[0].pmp = uio->uio_pmp; |
| 596 | #endif |
| 597 | |
| 598 | if (cnt == bsize) |
| 599 | bp = getchunk(vp, bmv, cr); |
| 600 | else |
| 601 | bp = chunkread(vp, bmv, 1, cr); |
| 602 | |
| 603 | avc->f.m.Date = osi_Time(); /* Set file date (for ranlib) */ |
| 604 | } |
| 605 | if (bp->b_flags & B_ERROR) { |
| 606 | /* |
| 607 | * Since we compile -signed, b_error is a signed |
| 608 | * char when it should be an unsigned char. |
| 609 | * This can cause some errors codes to be interpreted |
| 610 | * as negative #s |
| 611 | */ |
| 612 | error = (unsigned char)(bp->b_error); |
| 613 | if (!error) |
| 614 | error = EIO; |
| 615 | #ifdef DEBUG |
| 616 | if (acchk && error) { |
| 617 | cmn_err(CE_WARN, "bp 0x%x has error %d\n", bp, error); |
| 618 | if (acdrop) |
| 619 | debug("AFS"); |
| 620 | } |
| 621 | #endif |
| 622 | brelse(bp); |
| 623 | break; |
| 624 | } |
| 625 | |
| 626 | osi_Assert(bp->b_error == 0); |
| 627 | |
| 628 | if (uio->uio_segflg != UIO_NOSPACE) |
| 629 | (void)bp_mapin(bp); |
| 630 | AFS_UIOMOVE(bp->b_un.b_addr + bmv[0].pboff, cnt, rw, uio, error); |
| 631 | if (rw == UIO_READ || error) { |
| 632 | if (bp->b_flags & B_DELWRI) { |
| 633 | bawrite(bp); |
| 634 | } else |
| 635 | brelse(bp); |
| 636 | } else { |
| 637 | /* |
| 638 | * m.Length is the maximum number of bytes known to be in the file. |
| 639 | * Make sure it is at least as high as the last byte we just wrote |
| 640 | * into the buffer. |
| 641 | */ |
| 642 | if (avc->f.m.Length < uio->uio_offset) { |
| 643 | AFS_GLOCK(); |
| 644 | ObtainWriteLock(&avc->lock, 235); |
| 645 | avc->f.m.Length = uio->uio_offset; |
| 646 | ReleaseWriteLock(&avc->lock); |
| 647 | AFS_GUNLOCK(); |
| 648 | } |
| 649 | if (uio->uio_fmode & FSYNC) { |
| 650 | error = bwrite(bp); |
| 651 | } else if (off + cnt < bsize) { |
| 652 | bawrite(bp); /* was bdwrite */ |
| 653 | } else { |
| 654 | bp->b_flags |= B_AGE; |
| 655 | bawrite(bp); |
| 656 | } |
| 657 | /* |
| 658 | * Since EIO on an unlinked file is non-intuitive - give some |
| 659 | * explanation |
| 660 | */ |
| 661 | if (error) { |
| 662 | if (avc->f.m.LinkCount == 0) |
| 663 | cmn_err(CE_WARN, |
| 664 | "AFS: Process pid %d write error %d writing to unlinked file.", |
| 665 | OSI_GET_CURRENT_PID(), error); |
| 666 | } |
| 667 | } |
| 668 | } while (!error && uio->uio_resid > 0); |
| 669 | afs_chkpgoob(&avc->v, btoc(avc->f.m.Length)); |
| 670 | |
| 671 | AFS_GLOCK(); |
| 672 | |
| 673 | if (rw == UIO_WRITE && error == 0 && (avc->f.states & CDirty)) { |
| 674 | ObtainWriteLock(&avc->lock, 405); |
| 675 | error = afs_DoPartialWrite(avc, &treq); |
| 676 | ReleaseWriteLock(&avc->lock); |
| 677 | } |
| 678 | |
| 679 | if (!error) { |
| 680 | #ifdef AFS_SGI61_ENV |
| 681 | if (((ioflag & IO_SYNC) || (ioflag & IO_DSYNC)) && (rw == UIO_WRITE) |
| 682 | && !AFS_NFSXLATORREQ(cr)) { |
| 683 | error = afs_fsync(avc, 0, cr |
| 684 | #ifdef AFS_SGI65_ENV |
| 685 | , 0, 0 |
| 686 | #endif |
| 687 | ); |
| 688 | } |
| 689 | #else /* AFS_SGI61_ENV */ |
| 690 | if ((ioflag & IO_SYNC) && (rw == UIO_WRITE) && !AFS_NFSXLATORREQ(cr)) { |
| 691 | error = afs_fsync(avc, 0, cr); |
| 692 | } |
| 693 | #endif /* AFS_SGI61_ENV */ |
| 694 | } |
| 695 | if (didFakeOpen) { |
| 696 | ObtainWriteLock(&avc->lock, 236); |
| 697 | afs_FakeClose(avc, cr); /* XXXX For nfs trans XXXX */ |
| 698 | ReleaseWriteLock(&avc->lock); |
| 699 | } |
| 700 | afs_Trace4(afs_iclSetp, CM_TRACE_GRDWR, ICL_TYPE_POINTER, avc, |
| 701 | ICL_TYPE_INT32, ioflag, ICL_TYPE_INT32, rw, ICL_TYPE_INT32, |
| 702 | error); |
| 703 | |
| 704 | return (error); |
| 705 | } |
| 706 | |
| 707 | int |
| 708 | afs_xbmap(OSI_VC_ARG(avc), offset, count, flag, cr, bmv, nbmv) |
| 709 | OSI_VC_DECL(avc); |
| 710 | off_t offset; |
| 711 | ssize_t count; |
| 712 | int flag; |
| 713 | struct cred *cr; |
| 714 | struct bmapval *bmv; |
| 715 | int *nbmv; |
| 716 | { |
| 717 | int bsize; /* server's block size in bytes */ |
| 718 | off_t off; |
| 719 | size_t rem, cnt; |
| 720 | OSI_VC_CONVERT(avc); |
| 721 | |
| 722 | bsize = AFSBSIZE; |
| 723 | off = offset % bsize; /* offset into block */ |
| 724 | bmv->bn = BTOBBT(offset - off); |
| 725 | bmv->offset = bmv->bn; |
| 726 | bmv->pboff = off; |
| 727 | rem = avc->f.m.Length - offset; |
| 728 | if (rem <= 0) |
| 729 | cnt = 0; /* EOF */ |
| 730 | else |
| 731 | cnt = MIN(bsize - off, rem); |
| 732 | |
| 733 | /* |
| 734 | * It is benign to ignore *nbmv > 1, since it is only for requesting |
| 735 | * readahead. |
| 736 | */ |
| 737 | |
| 738 | /* |
| 739 | * Don't map more than up to next page if at end of file |
| 740 | * See comment in afsrwvp |
| 741 | */ |
| 742 | osi_Assert((off + cnt) <= bsize); |
| 743 | bsize = ctob(btoc(off + cnt)); |
| 744 | bmv->pbsize = MIN(cnt, count); |
| 745 | bmv->eof = 0; |
| 746 | #ifdef AFS_SGI64_ENV |
| 747 | bmv->pmp = NULL; |
| 748 | bmv->pbdev = avc->v.v_rdev; |
| 749 | #endif |
| 750 | bmv->bsize = bsize; |
| 751 | bmv->length = BTOBBT(bsize); |
| 752 | *nbmv = 1; |
| 753 | return (0); |
| 754 | } |
| 755 | |
| 756 | /* |
| 757 | * called out of chunkread from afs_xread & clusterwrite to push dirty |
| 758 | * pages back - this routine |
| 759 | * actually does the reading/writing by calling afs_read/afs_write |
| 760 | * bp points to a set of pages that have been inserted into |
| 761 | * the page cache hashed on afs vp. |
| 762 | */ |
| 763 | static void |
| 764 | afs_strategy(OSI_VC_ARG(avc), bp) |
| 765 | OSI_VC_DECL(avc); |
| 766 | struct buf *bp; |
| 767 | { |
| 768 | uio_t auio; |
| 769 | uio_t *uio = &auio; |
| 770 | iovec_t aiovec; |
| 771 | int error; |
| 772 | struct cred *cr; |
| 773 | OSI_VC_CONVERT(avc); |
| 774 | vnode_t *vp = (vnode_t *) avc; |
| 775 | |
| 776 | /* |
| 777 | * We can't afford DELWRI buffers for 2 reasons: |
| 778 | * 1) Since we can call underlying EFS, we can require a |
| 779 | * buffer to flush a buffer. This leads to 2 potential |
| 780 | * recursions/deadlocks |
| 781 | * a) if all buffers are DELWRI afs buffers, then |
| 782 | * ngeteblk -> bwrite -> afs_strategy -> afs_write -> |
| 783 | * UFS_Write -> efs_write -> ngeteblk .... could |
| 784 | * recurse a long ways! |
| 785 | * b) brelse -> chunkhold which can call dchunkpush |
| 786 | * will look for any DELWRI buffers and call strategy |
| 787 | * on them. This can then end up via UFS_Write |
| 788 | * recursing |
| 789 | * Current hack: |
| 790 | * a) We never do bdwrite(s) on AFS buffers. |
| 791 | * b) We call pdflush with B_ASYNC |
| 792 | * c) in chunkhold where it can set a buffer DELWRI |
| 793 | * we immediatly do a clusterwrite for AFS vp's |
| 794 | * XXX Alas, 'c' got dropped in 5.1 so its possible to get DELWRI |
| 795 | * buffers if someone has mmaped the file and dirtied it then |
| 796 | * reads/faults it again. |
| 797 | * Instead - wherever we call chunkread/getchunk we check for a |
| 798 | * returned bp with DELWRI set, and write it out immediately |
| 799 | */ |
| 800 | if (CheckLock(&avc->lock) && VN_GET_DBUF(vp)) { |
| 801 | printf("WARN: afs_strategy vp=%x, v_dbuf=%x bp=%x\n", vp, |
| 802 | VN_GET_DBUF(vp), bp); |
| 803 | bp->b_error = EIO; |
| 804 | bp->b_flags |= B_ERROR; |
| 805 | iodone(bp); |
| 806 | return; |
| 807 | } |
| 808 | if (bp->b_error != 0) |
| 809 | printf("WARNING: afs_strategy3 vp=%x, bp=%x, err=%x\n", vp, bp, |
| 810 | bp->b_error); |
| 811 | |
| 812 | /* |
| 813 | * To get credentials somewhat correct (we may be called from bdflush/ |
| 814 | * sync) we use saved credentials in Vcache. |
| 815 | * We must hold them since someone else could change them |
| 816 | */ |
| 817 | ObtainReadLock(&avc->lock); |
| 818 | if (bp->b_flags & B_READ) { |
| 819 | if (BBTOB(bp->b_blkno) >= avc->f.m.Length) { |
| 820 | /* we are responsible for zero'ing the page */ |
| 821 | caddr_t c; |
| 822 | c = bp_mapin(bp); |
| 823 | memset(c, 0, bp->b_bcount); |
| 824 | iodone(bp); |
| 825 | ReleaseReadLock(&avc->lock); |
| 826 | return; |
| 827 | } |
| 828 | } else if ((avc->f.states & CWritingUFS) && (bp->b_flags & B_DELWRI)) { |
| 829 | bp->b_ref = 3; |
| 830 | ReleaseReadLock(&avc->lock); |
| 831 | iodone(bp); |
| 832 | return; |
| 833 | } |
| 834 | cr = avc->cred; |
| 835 | osi_Assert(cr); |
| 836 | crhold(cr); |
| 837 | ReleaseReadLock(&avc->lock); |
| 838 | |
| 839 | aiovec.iov_base = bp_mapin(bp); |
| 840 | uio->uio_iov = &aiovec; |
| 841 | uio->uio_iovcnt = 1; |
| 842 | uio->uio_resid = aiovec.iov_len = bp->b_bcount; |
| 843 | uio->uio_offset = BBTOB(bp->b_blkno); |
| 844 | uio->uio_segflg = UIO_SYSSPACE; |
| 845 | uio->uio_limit = RLIM_INFINITY; /* we checked the limit earlier */ |
| 846 | #ifdef AFS_SGI64_ENV |
| 847 | uio->uio_pmp = NULL; |
| 848 | #endif |
| 849 | |
| 850 | if (bp->b_flags & B_READ) { |
| 851 | uio->uio_fmode = FREAD; |
| 852 | error = afs_read(vp, uio, cr, 0); |
| 853 | } else { |
| 854 | uio->uio_fmode = FWRITE; |
| 855 | error = afs_write(vp, uio, 0, cr, 0); |
| 856 | } |
| 857 | crfree(cr); |
| 858 | |
| 859 | #ifdef DEBUG |
| 860 | if (acchk && error) { |
| 861 | cmn_err(CE_WARN, "vp 0x%x has error %d\n", vp, error); |
| 862 | if (acdrop) |
| 863 | debug("AFS"); |
| 864 | } |
| 865 | #endif |
| 866 | if (error) { |
| 867 | bp->b_error = error; |
| 868 | bp->b_flags |= B_ERROR; |
| 869 | if ((uio->uio_fmode == FWRITE) && !avc->vc_error) |
| 870 | avc->vc_error = error; |
| 871 | } |
| 872 | iodone(bp); |
| 873 | return; |
| 874 | } |
| 875 | |
| 876 | /* ARGSUSED */ |
| 877 | static int |
| 878 | afs_seek(OSI_VC_ARG(avc), ooff, noffp) |
| 879 | OSI_VC_DECL(avc); |
| 880 | off_t ooff; |
| 881 | off_t *noffp; |
| 882 | { |
| 883 | return *noffp < 0 ? EINVAL : 0; |
| 884 | } |
| 885 | |
| 886 | #if !defined(AFS_SGI65_ENV) |
| 887 | /* Irix 6.5 uses addmap/delmap only for devices. */ |
| 888 | /* ARGSUSED */ |
| 889 | static int |
| 890 | afs_addmap(OSI_VC_ARG(avc), off, prp, addr, len, prot, maxprot, flags, cr) |
| 891 | off_t off; |
| 892 | OSI_VC_DECL(avc); |
| 893 | struct pregion *prp; |
| 894 | addr_t addr; |
| 895 | size_t len; |
| 896 | u_int prot, maxprot; |
| 897 | u_int flags; |
| 898 | struct cred *cr; |
| 899 | { |
| 900 | OSI_VC_CONVERT(avc); |
| 901 | struct vnode *vp = AFSTOV(avc); |
| 902 | |
| 903 | if (vp->v_flag & VNOMAP) |
| 904 | return ENOSYS; |
| 905 | if (len == 0) |
| 906 | return 0; |
| 907 | AFS_RWLOCK(vp, VRWLOCK_WRITE); |
| 908 | if (avc->mapcnt == 0) { |
| 909 | /* on first mapping add a open reference */ |
| 910 | ObtainWriteLock(&avc->lock, 237); |
| 911 | avc->execsOrWriters++; |
| 912 | avc->opens++; |
| 913 | ReleaseWriteLock(&avc->lock); |
| 914 | } |
| 915 | avc->mapcnt += btoc(len); |
| 916 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 917 | return 0; |
| 918 | } |
| 919 | |
| 920 | /*ARGSUSED*/ static int |
| 921 | afs_delmap(OSI_VC_ARG(avc), off, prp, addr, len, prot, maxprot, flags, acred) |
| 922 | off_t off; |
| 923 | OSI_VC_DECL(avc); |
| 924 | struct pregion *prp; |
| 925 | addr_t addr; |
| 926 | size_t len; |
| 927 | u_int prot, maxprot; |
| 928 | u_int flags; |
| 929 | struct cred *acred; |
| 930 | { |
| 931 | OSI_VC_CONVERT(avc); |
| 932 | struct vnode *vp = AFSTOV(avc); |
| 933 | struct brequest *tb; |
| 934 | struct vrequest treq; |
| 935 | afs_int32 code; |
| 936 | |
| 937 | if (vp->v_flag & VNOMAP) |
| 938 | return ENOSYS; |
| 939 | if (len == 0) |
| 940 | return 0; |
| 941 | AFS_RWLOCK(vp, VRWLOCK_WRITE); |
| 942 | osi_Assert(avc->mapcnt > 0); |
| 943 | avc->mapcnt -= btoc(len); |
| 944 | osi_Assert(avc->mapcnt >= 0); |
| 945 | if (avc->mapcnt == 0) { |
| 946 | /* on last mapping push back and remove our reference */ |
| 947 | osi_Assert(avc->execsOrWriters > 0); |
| 948 | osi_Assert(avc->opens > 0); |
| 949 | if (avc->f.m.LinkCount == 0) { |
| 950 | ObtainWriteLock(&avc->lock, 238); |
| 951 | AFS_GUNLOCK(); |
| 952 | PTOSSVP(vp, (off_t) 0, (off_t) MAXLONG); |
| 953 | AFS_GLOCK(); |
| 954 | ReleaseWriteLock(&avc->lock); |
| 955 | } |
| 956 | /* |
| 957 | * mimic afs_close |
| 958 | */ |
| 959 | code = afs_InitReq(&treq, acred); |
| 960 | if (code) { |
| 961 | code = afs_CheckCode(code, NULL, 64); |
| 962 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 963 | } else if (afs_BBusy()) { |
| 964 | /* do it yourself if daemons are all busy */ |
| 965 | ObtainWriteLock(&avc->lock, 239); |
| 966 | code = afs_StoreOnLastReference(avc, &treq); |
| 967 | ReleaseWriteLock(&avc->lock); |
| 968 | /* BStore does CheckCode so we should also */ |
| 969 | /* VNOVNODE is "acceptable" error code from close, since |
| 970 | * may happen when deleting a file on another machine while |
| 971 | * it is open here. */ |
| 972 | if (code == VNOVNODE) |
| 973 | code = 0; |
| 974 | if (code) { |
| 975 | afs_StoreWarn(code, avc->f.fid.Fid.Volume, /* /dev/console */ |
| 976 | 1); |
| 977 | } |
| 978 | code = afs_CheckCode(code, &treq, 52); |
| 979 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 980 | } else { |
| 981 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 982 | /* at least one daemon is idle, so ask it to do the store. |
| 983 | * Also, note that we don't lock it any more... */ |
| 984 | tb = afs_BQueue(BOP_STORE, avc, 0, 1, acred, |
| 985 | (afs_size_t) afs_cr_uid(acred), 0L, (void *)0, |
| 986 | (void *)0, (void *)0); |
| 987 | /* sleep waiting for the store to start, then retrieve error code */ |
| 988 | while ((tb->flags & BUVALID) == 0) { |
| 989 | tb->flags |= BUWAIT; |
| 990 | afs_osi_Sleep(tb); |
| 991 | } |
| 992 | afs_BRelease(tb); |
| 993 | } |
| 994 | } else { |
| 995 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 996 | } |
| 997 | return 0; |
| 998 | } |
| 999 | #endif /* ! AFS_SGI65_ENV */ |
| 1000 | |
| 1001 | |
| 1002 | /* ARGSUSED */ |
| 1003 | /* |
| 1004 | * Note - if mapping in an ELF interpreter, one can get called without vp |
| 1005 | * ever having been 'opened' |
| 1006 | */ |
| 1007 | #ifdef AFS_SGI65_ENV |
| 1008 | static int |
| 1009 | afs_map(OSI_VC_ARG(avc), off, len, prot, flags, cr, vpp) |
| 1010 | off_t off; |
| 1011 | OSI_VC_DECL(avc); |
| 1012 | size_t len; |
| 1013 | mprot_t prot; |
| 1014 | u_int flags; |
| 1015 | struct cred *cr; |
| 1016 | vnode_t **vpp; |
| 1017 | #else |
| 1018 | static int |
| 1019 | afs_map(OSI_VC_ARG(avc), off, prp, addrp, len, prot, maxprot, flags, cr) |
| 1020 | off_t off; |
| 1021 | OSI_VC_DECL(avc); |
| 1022 | struct pregion *prp; |
| 1023 | addr_t *addrp; |
| 1024 | size_t len; |
| 1025 | u_int prot, maxprot; |
| 1026 | u_int flags; |
| 1027 | struct cred *cr; |
| 1028 | #endif |
| 1029 | { |
| 1030 | OSI_VC_CONVERT(avc); |
| 1031 | struct vnode *vp = AFSTOV(avc); |
| 1032 | struct vrequest treq; |
| 1033 | int error; |
| 1034 | |
| 1035 | /* get a validated vcache entry */ |
| 1036 | error = afs_InitReq(&treq, cr); |
| 1037 | if (error) |
| 1038 | return afs_CheckCode(error, NULL, 65); |
| 1039 | |
| 1040 | error = afs_VerifyVCache(avc, &treq); |
| 1041 | if (error) |
| 1042 | return afs_CheckCode(error, &treq, 53); |
| 1043 | |
| 1044 | osi_FlushPages(avc, cr); /* ensure old pages are gone */ |
| 1045 | #ifdef AFS_SGI65_ENV |
| 1046 | /* If the vnode is currently opened for write, there's the potential |
| 1047 | * that this mapping might (now or in the future) have PROT_WRITE. |
| 1048 | * So assume it does and we'll have to call afs_StoreOnLastReference. |
| 1049 | */ |
| 1050 | AFS_RWLOCK(vp, VRWLOCK_WRITE); |
| 1051 | ObtainWriteLock(&avc->lock, 501); |
| 1052 | if (avc->execsOrWriters > 0) { |
| 1053 | avc->execsOrWriters++; |
| 1054 | avc->opens++; |
| 1055 | avc->mapcnt++; /* count eow's due to mappings. */ |
| 1056 | } |
| 1057 | ReleaseWriteLock(&avc->lock); |
| 1058 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 1059 | #else |
| 1060 | AFS_RWLOCK(vp, VRWLOCK_WRITE); |
| 1061 | AFS_GUNLOCK(); |
| 1062 | error = |
| 1063 | fs_map_subr(vp, (off_t) avc->f.m.Length, (u_int) avc->f.m.Mode, off, prp, |
| 1064 | *addrp, len, prot, maxprot, flags, cr); |
| 1065 | AFS_GLOCK(); |
| 1066 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 1067 | #endif /* AFS_SGI65_ENV */ |
| 1068 | afs_Trace4(afs_iclSetp, CM_TRACE_GMAP, ICL_TYPE_POINTER, vp, |
| 1069 | #ifdef AFS_SGI65_ENV |
| 1070 | ICL_TYPE_POINTER, NULL, |
| 1071 | #else |
| 1072 | ICL_TYPE_POINTER, *addrp, |
| 1073 | #endif |
| 1074 | ICL_TYPE_INT32, len, ICL_TYPE_INT32, off); |
| 1075 | return error; |
| 1076 | } |
| 1077 | |
| 1078 | |
| 1079 | extern afs_rwlock_t afs_xvcache; |
| 1080 | extern afs_lock_t afs_xdcache; |
| 1081 | #ifdef AFS_SGI64_ENV |
| 1082 | int |
| 1083 | #else |
| 1084 | void |
| 1085 | #endif |
| 1086 | afs_xinactive(OSI_VC_ARG(avc), acred) |
| 1087 | OSI_VC_DECL(avc); |
| 1088 | struct ucred *acred; |
| 1089 | { |
| 1090 | int s; |
| 1091 | OSI_VC_CONVERT(avc); |
| 1092 | vnode_t *vp = (vnode_t *) avc; |
| 1093 | int mapcnt = avc->mapcnt; /* We just clear off this many. */ |
| 1094 | |
| 1095 | AFS_STATCNT(afs_inactive); |
| 1096 | |
| 1097 | s = VN_LOCK(vp); |
| 1098 | if (!(vp->v_flag & VINACT) || (vp->v_count > 0)) { |
| 1099 | /* inactive was already done, or someone did a VN_HOLD; just return */ |
| 1100 | vp->v_flag &= ~VINACT; |
| 1101 | VN_UNLOCK(vp, s); |
| 1102 | #ifdef AFS_SGI64_ENV |
| 1103 | return VN_INACTIVE_CACHE; |
| 1104 | #else |
| 1105 | return; |
| 1106 | #endif |
| 1107 | } |
| 1108 | osi_Assert((vp->v_flag & VSHARE) == 0); |
| 1109 | vp->v_flag &= ~VINACT; |
| 1110 | /* Removed broadcast to waiters, since no one ever will. Only for vnodes |
| 1111 | * in common pool. |
| 1112 | */ |
| 1113 | VN_UNLOCK(vp, s); |
| 1114 | |
| 1115 | #ifdef AFS_SGI65_ENV |
| 1116 | /* In Irix 6.5, the last unmap of a dirty mmap'd file does not |
| 1117 | * get an explicit vnode op. Instead we only find out at VOP_INACTIVE. |
| 1118 | */ |
| 1119 | if (!afs_rwlock_nowait((vnode_t *) avc, VRWLOCK_WRITE)) { |
| 1120 | return VN_INACTIVE_CACHE; |
| 1121 | } |
| 1122 | if (NBObtainWriteLock(&avc->lock, 502)) { |
| 1123 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 1124 | return VN_INACTIVE_CACHE; |
| 1125 | } |
| 1126 | if (avc->f.states & CUnlinked) { |
| 1127 | if (CheckLock(&afs_xvcache) || CheckLock(&afs_xdcache)) { |
| 1128 | avc->f.states |= CUnlinkedDel; |
| 1129 | ReleaseWriteLock(&avc->lock); |
| 1130 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 1131 | } else { |
| 1132 | ReleaseWriteLock(&avc->lock); |
| 1133 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 1134 | afs_remunlink(avc, 1); /* ignore any return code */ |
| 1135 | } |
| 1136 | return VN_INACTIVE_CACHE; |
| 1137 | } |
| 1138 | if ((avc->f.states & CDirty) || (avc->execsOrWriters > 0)) { |
| 1139 | /* File either already has dirty chunks (CDirty) or was mapped at |
| 1140 | * time in its life with the potential for being written into. |
| 1141 | * Note that afs_close defers storebacks if the vnode's ref count |
| 1142 | * if more than 1. |
| 1143 | */ |
| 1144 | int code; |
| 1145 | struct vrequest treq; |
| 1146 | if (!afs_InitReq(&treq, acred)) { |
| 1147 | int s; |
| 1148 | |
| 1149 | VN_HOLD(vp); |
| 1150 | avc->execsOrWriters -= mapcnt - 1; |
| 1151 | avc->opens -= mapcnt - 1; |
| 1152 | avc->mapcnt -= mapcnt; |
| 1153 | code = afs_StoreOnLastReference(avc, &treq); |
| 1154 | /* The following behavior mimics the behavior in afs_close. */ |
| 1155 | if (code == VNOVNODE) |
| 1156 | code = 0; |
| 1157 | if (code) { |
| 1158 | if (mapcnt) { |
| 1159 | cmn_err(CE_WARN, |
| 1160 | "AFS: Failed to store FID (%x:%lu.%lu.%lu) in VOP_INACTIVE, error = %d\n", |
| 1161 | (int)(avc->f.fid.Cell) & 0xffffffff, |
| 1162 | avc->f.fid.Fid.Volume, avc->f.fid.Fid.Vnode, |
| 1163 | avc->f.fid.Fid.Unique, code); |
| 1164 | } |
| 1165 | afs_InvalidateAllSegments(avc); |
| 1166 | } |
| 1167 | s = VN_LOCK(vp); |
| 1168 | vp->v_count--; |
| 1169 | code = (vp->v_count == 0); |
| 1170 | VN_UNLOCK(vp, s); |
| 1171 | /* If the vnode is now in use by someone else, return early. */ |
| 1172 | if (!code) { |
| 1173 | ReleaseWriteLock(&avc->lock); |
| 1174 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 1175 | return VN_INACTIVE_CACHE; |
| 1176 | } |
| 1177 | } |
| 1178 | } |
| 1179 | #endif |
| 1180 | |
| 1181 | osi_Assert((avc->f.states & (CCore | CMAPPED)) == 0); |
| 1182 | |
| 1183 | if (avc->cred) { |
| 1184 | crfree(avc->cred); |
| 1185 | avc->cred = NULL; |
| 1186 | } |
| 1187 | ReleaseWriteLock(&avc->lock); |
| 1188 | AFS_RWUNLOCK(vp, VRWLOCK_WRITE); |
| 1189 | |
| 1190 | /* |
| 1191 | * If someone unlinked a file and this is the last hurrah - |
| 1192 | * nuke all the pages. |
| 1193 | */ |
| 1194 | if (avc->f.m.LinkCount == 0) { |
| 1195 | AFS_GUNLOCK(); |
| 1196 | PTOSSVP(vp, (off_t) 0, (off_t) MAXLONG); |
| 1197 | AFS_GLOCK(); |
| 1198 | } |
| 1199 | #ifndef AFS_SGI65_ENV |
| 1200 | osi_Assert(avc->mapcnt == 0); |
| 1201 | afs_chkpgoob(&avc->v, btoc(avc->f.m.Length)); |
| 1202 | |
| 1203 | avc->f.states &= ~CDirty; /* Give up on store-backs */ |
| 1204 | if (avc->f.states & CUnlinked) { |
| 1205 | if (CheckLock(&afs_xvcache) || CheckLock(&afs_xdcache)) { |
| 1206 | avc->f.states |= CUnlinkedDel; |
| 1207 | } else { |
| 1208 | afs_remunlink(avc, 1); /* ignore any return code */ |
| 1209 | } |
| 1210 | } |
| 1211 | #endif |
| 1212 | #ifdef AFS_SGI64_ENV |
| 1213 | return VN_INACTIVE_CACHE; |
| 1214 | #endif |
| 1215 | } |
| 1216 | |
| 1217 | static int |
| 1218 | afs_reclaim(OSI_VC_DECL(avc), int flag) |
| 1219 | { |
| 1220 | #ifdef AFS_SGI64_ENV |
| 1221 | /* Get's called via VOP_RELCAIM in afs_FlushVCache to clear repl_vnodeops */ |
| 1222 | return 0; |
| 1223 | #else |
| 1224 | panic("afs_reclaim"); |
| 1225 | #endif |
| 1226 | } |
| 1227 | |
| 1228 | void |
| 1229 | afs_rwlock(OSI_VN_DECL(vp), AFS_RWLOCK_T flag) |
| 1230 | { |
| 1231 | OSI_VN_CONVERT(vp); |
| 1232 | struct vcache *avc = VTOAFS(vp); |
| 1233 | |
| 1234 | if (OSI_GET_LOCKID() == avc->vc_rwlockid) { |
| 1235 | avc->vc_locktrips++; |
| 1236 | return; |
| 1237 | } |
| 1238 | AFS_GUNLOCK(); |
| 1239 | psema(&avc->vc_rwlock, PINOD); |
| 1240 | AFS_GLOCK(); |
| 1241 | avc->vc_rwlockid = OSI_GET_LOCKID(); |
| 1242 | } |
| 1243 | |
| 1244 | void |
| 1245 | afs_rwunlock(OSI_VN_DECL(vp), AFS_RWLOCK_T flag) |
| 1246 | { |
| 1247 | OSI_VN_CONVERT(vp); |
| 1248 | struct vcache *avc = VTOAFS(vp); |
| 1249 | |
| 1250 | AFS_ASSERT_GLOCK(); |
| 1251 | osi_Assert(OSI_GET_LOCKID() == avc->vc_rwlockid); |
| 1252 | if (avc->vc_locktrips > 0) { |
| 1253 | --avc->vc_locktrips; |
| 1254 | return; |
| 1255 | } |
| 1256 | avc->vc_rwlockid = OSI_NO_LOCKID; |
| 1257 | vsema(&avc->vc_rwlock); |
| 1258 | } |
| 1259 | |
| 1260 | |
| 1261 | /* The flag argument is for symmetry with the afs_rwlock and afs_rwunlock |
| 1262 | * calls. SGI currently only uses the flag to assert if the unlock flag |
| 1263 | * does not match the corresponding lock flag. But they may start using this |
| 1264 | * flag for a real rw lock at some time. |
| 1265 | */ |
| 1266 | int |
| 1267 | afs_rwlock_nowait(vnode_t * vp, AFS_RWLOCK_T flag) |
| 1268 | { |
| 1269 | struct vcache *avc = VTOAFS(vp); |
| 1270 | |
| 1271 | AFS_ASSERT_GLOCK(); |
| 1272 | if (OSI_GET_LOCKID() == avc->vc_rwlockid) { |
| 1273 | avc->vc_locktrips++; |
| 1274 | return 1; |
| 1275 | } |
| 1276 | if (cpsema(&avc->vc_rwlock)) { |
| 1277 | avc->vc_rwlockid = OSI_GET_LOCKID(); |
| 1278 | return 1; |
| 1279 | } |
| 1280 | return 0; |
| 1281 | } |
| 1282 | |
| 1283 | #if defined(AFS_SGI64_ENV) && defined(CKPT) && !defined(_R5000_CVT_WAR) |
| 1284 | int |
| 1285 | afs_fid2(OSI_VC_DECL(avc), struct fid *fidp) |
| 1286 | { |
| 1287 | struct cell *tcell; |
| 1288 | afs_fid2_t *afid = (afs_fid2_t *) fidp; |
| 1289 | OSI_VC_CONVERT(avc); |
| 1290 | |
| 1291 | osi_Assert(sizeof(fid_t) >= sizeof(afs_fid2_t)); |
| 1292 | afid->af_len = sizeof(afs_fid2_t) - sizeof(afid->af_len); |
| 1293 | |
| 1294 | tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK); |
| 1295 | afid->af_cell = tcell->cellIndex & 0xffff; |
| 1296 | afs_PutCell(tcell, READ_LOCK); |
| 1297 | |
| 1298 | afid->af_volid = avc->f.fid.Fid.Volume; |
| 1299 | afid->af_vno = avc->f.fid.Fid.Vnode; |
| 1300 | afid->af_uniq = avc->f.fid.Fid.Unique; |
| 1301 | |
| 1302 | return 0; |
| 1303 | } |
| 1304 | #else |
| 1305 | /* Only use so far is in checkpoint/restart for IRIX 6.4. In ckpt_fid, a |
| 1306 | * return of ENOSYS would make the code fail over to VOP_FID. We can't let |
| 1307 | * that happen, since we do a VN_HOLD there in the expectation that |
| 1308 | * posthandle will be called to release the vnode. |
| 1309 | * |
| 1310 | * afs_fid2 is used to support the R5000 workarounds (_R5000_CVT_WAR) |
| 1311 | */ |
| 1312 | int |
| 1313 | afs_fid2(OSI_VC_DECL(avc), struct fid *fidp) |
| 1314 | { |
| 1315 | #if defined(_R5000_CVT_WAR) |
| 1316 | extern int R5000_cvt_war; |
| 1317 | |
| 1318 | if (R5000_cvt_war) |
| 1319 | return ENOSYS; |
| 1320 | else |
| 1321 | return EINVAL; |
| 1322 | #else |
| 1323 | return EINVAL; |
| 1324 | #endif |
| 1325 | } |
| 1326 | #endif /* AFS_SGI64_ENV && CKPT */ |
| 1327 | |
| 1328 | |
| 1329 | /* |
| 1330 | * check for any pages hashed that shouldn't be! |
| 1331 | * Only valid if PGCACHEDEBUG is set in os/page.c |
| 1332 | * Drop the global lock here, since we may not actually do the call. |
| 1333 | */ |
| 1334 | void |
| 1335 | afs_chkpgoob(vnode_t * vp, pgno_t pgno) |
| 1336 | { |
| 1337 | #undef PGDEBUG |
| 1338 | #ifdef PGDEBUG |
| 1339 | AFS_GUNLOCK(); |
| 1340 | pfindanyoob(vp, pgno); |
| 1341 | AFS_GLOCK(); |
| 1342 | #endif |
| 1343 | } |
| 1344 | |
| 1345 | |
| 1346 | #ifdef MP |
| 1347 | |
| 1348 | #ifdef AFS_SGI64_ENV |
| 1349 | #define AFS_MP_VC_ARG(A) bhv_desc_t A |
| 1350 | #else |
| 1351 | #define AFS_MP_VC_ARG(A) vnode_t A |
| 1352 | #endif |
| 1353 | |
| 1354 | #ifdef AFS_SGI64_ENV |
| 1355 | int |
| 1356 | mp_afs_open(bhv_desc_t * bhp, vnode_t ** a, mode_t b, struct cred *c) |
| 1357 | #else |
| 1358 | int |
| 1359 | mp_afs_open(vnode_t ** a, mode_t b, struct cred *c) |
| 1360 | #endif |
| 1361 | { |
| 1362 | int rv; |
| 1363 | AFS_GLOCK(); |
| 1364 | #ifdef AFS_SGI64_ENV |
| 1365 | rv = afs_lockedvnodeops.vop_open(bhp, a, b, c); |
| 1366 | #else |
| 1367 | rv = afs_lockedvnodeops.vop_open(a, b, c); |
| 1368 | #endif |
| 1369 | AFS_GUNLOCK(); |
| 1370 | return rv; |
| 1371 | } |
| 1372 | |
| 1373 | #if defined(AFS_SGI64_ENV) |
| 1374 | #if defined(AFS_SGI65_ENV) |
| 1375 | int |
| 1376 | mp_afs_close(AFS_MP_VC_ARG(*a), int b, lastclose_t c, struct cred *d) |
| 1377 | #else |
| 1378 | int |
| 1379 | mp_afs_close(AFS_MP_VC_ARG(*a), int b, lastclose_t c, off_t d, struct cred *e, |
| 1380 | struct flid *f) |
| 1381 | #endif |
| 1382 | #else |
| 1383 | int |
| 1384 | mp_afs_close(AFS_MP_VC_ARG(*a), int b, lastclose_t c, off_t d, struct cred *e) |
| 1385 | #endif |
| 1386 | { |
| 1387 | int rv; |
| 1388 | AFS_GLOCK(); |
| 1389 | rv = afs_lockedvnodeops.vop_close(a, b, c, d |
| 1390 | #if !defined(AFS_SGI65_ENV) |
| 1391 | , e |
| 1392 | #if defined(AFS_SGI64_ENV) |
| 1393 | , f |
| 1394 | #endif |
| 1395 | #endif |
| 1396 | ); |
| 1397 | |
| 1398 | AFS_GUNLOCK(); |
| 1399 | return rv; |
| 1400 | } |
| 1401 | |
| 1402 | #ifdef AFS_SGI64_ENV |
| 1403 | int |
| 1404 | mp_afs_read(AFS_MP_VC_ARG(*a), struct uio *b, int c, struct cred *d, |
| 1405 | struct flid *f) |
| 1406 | #else |
| 1407 | int |
| 1408 | mp_afs_read(AFS_MP_VC_ARG(*a), struct uio *b, int c, struct cred *d) |
| 1409 | #endif |
| 1410 | { |
| 1411 | int rv; |
| 1412 | AFS_GLOCK(); |
| 1413 | #ifdef AFS_SGI64_ENV |
| 1414 | rv = afs_lockedvnodeops.vop_read(a, b, c, d, f); |
| 1415 | #else |
| 1416 | rv = afs_lockedvnodeops.vop_read(a, b, c, d); |
| 1417 | #endif |
| 1418 | AFS_GUNLOCK(); |
| 1419 | return rv; |
| 1420 | } |
| 1421 | |
| 1422 | |
| 1423 | #ifdef AFS_SGI64_ENV |
| 1424 | int |
| 1425 | mp_afs_write(AFS_MP_VC_ARG(*a), struct uio *b, int c, struct cred *d, |
| 1426 | struct flid *f) |
| 1427 | #else |
| 1428 | int |
| 1429 | mp_afs_write(AFS_MP_VC_ARG(*a), struct uio *b, int c, struct cred *d) |
| 1430 | #endif |
| 1431 | { |
| 1432 | int rv; |
| 1433 | AFS_GLOCK(); |
| 1434 | #ifdef AFS_SGI64_ENV |
| 1435 | rv = afs_lockedvnodeops.vop_write(a, b, c, d, f); |
| 1436 | #else |
| 1437 | rv = afs_lockedvnodeops.vop_write(a, b, c, d); |
| 1438 | #endif |
| 1439 | AFS_GUNLOCK(); |
| 1440 | return rv; |
| 1441 | } |
| 1442 | |
| 1443 | int |
| 1444 | mp_afs_ioctl(AFS_MP_VC_ARG(*a), int b, void *c, int d, struct cred *e, int *f |
| 1445 | #ifdef AFS_SGI65_ENV |
| 1446 | , struct vopbd *vbds |
| 1447 | #endif |
| 1448 | ) |
| 1449 | { |
| 1450 | int rv; |
| 1451 | AFS_GLOCK(); |
| 1452 | rv = afs_lockedvnodeops.vop_ioctl(a, b, c, d, e, f |
| 1453 | #ifdef AFS_SGI65_ENV |
| 1454 | , vbds |
| 1455 | #endif |
| 1456 | ); |
| 1457 | AFS_GUNLOCK(); |
| 1458 | return rv; |
| 1459 | } |
| 1460 | |
| 1461 | int |
| 1462 | mp_fs_setfl(AFS_MP_VC_ARG(*a), int b, int c, struct cred *d) |
| 1463 | { |
| 1464 | int rv; |
| 1465 | AFS_GLOCK(); |
| 1466 | rv = afs_lockedvnodeops.vop_setfl(a, b, c, d); |
| 1467 | AFS_GUNLOCK(); |
| 1468 | return rv; |
| 1469 | } |
| 1470 | |
| 1471 | int |
| 1472 | mp_afs_getattr(AFS_MP_VC_ARG(*a), struct vattr *b, int c, struct cred *d) |
| 1473 | { |
| 1474 | int rv; |
| 1475 | AFS_GLOCK(); |
| 1476 | rv = afs_lockedvnodeops.vop_getattr(a, b, c, d); |
| 1477 | AFS_GUNLOCK(); |
| 1478 | return rv; |
| 1479 | } |
| 1480 | |
| 1481 | int |
| 1482 | mp_afs_setattr(AFS_MP_VC_ARG(*a), struct vattr *b, int c, struct cred *d) |
| 1483 | { |
| 1484 | int rv; |
| 1485 | AFS_GLOCK(); |
| 1486 | rv = afs_lockedvnodeops.vop_setattr(a, b, c, d); |
| 1487 | AFS_GUNLOCK(); |
| 1488 | return rv; |
| 1489 | } |
| 1490 | |
| 1491 | int |
| 1492 | mp_afs_access(AFS_MP_VC_ARG(*a), int b, |
| 1493 | #ifndef AFS_SGI65_ENV |
| 1494 | int c, |
| 1495 | #endif |
| 1496 | struct cred *d) |
| 1497 | { |
| 1498 | int rv; |
| 1499 | AFS_GLOCK(); |
| 1500 | rv = afs_lockedvnodeops.vop_access(a, b, |
| 1501 | #ifndef AFS_SGI65_ENV |
| 1502 | c, |
| 1503 | #endif |
| 1504 | d); |
| 1505 | AFS_GUNLOCK(); |
| 1506 | return rv; |
| 1507 | } |
| 1508 | |
| 1509 | int |
| 1510 | mp_afs_lookup(AFS_MP_VC_ARG(*a), char *b, vnode_t ** c, struct pathname *d, |
| 1511 | int e, vnode_t * f, struct cred *g) |
| 1512 | { |
| 1513 | int rv; |
| 1514 | AFS_GLOCK(); |
| 1515 | rv = afs_lockedvnodeops.vop_lookup(a, b, c, d, e, f, g); |
| 1516 | AFS_GUNLOCK(); |
| 1517 | return rv; |
| 1518 | } |
| 1519 | |
| 1520 | #ifdef AFS_SGI64_ENV |
| 1521 | int |
| 1522 | mp_afs_create(AFS_MP_VC_ARG(*a), char *b, struct vattr *c, int d, int e, |
| 1523 | vnode_t ** f, struct cred *g) |
| 1524 | #else |
| 1525 | int |
| 1526 | mp_afs_create(AFS_MP_VC_ARG(*a), char *b, struct vattr *c, enum vcexcl d, |
| 1527 | int e, vnode_t ** f, struct cred *g) |
| 1528 | #endif |
| 1529 | { |
| 1530 | int rv; |
| 1531 | AFS_GLOCK(); |
| 1532 | rv = afs_lockedvnodeops.vop_create(a, b, c, d, e, f, g); |
| 1533 | AFS_GUNLOCK(); |
| 1534 | return rv; |
| 1535 | } |
| 1536 | |
| 1537 | int |
| 1538 | mp_afs_remove(AFS_MP_VC_ARG(*a), char *b, struct cred *c) |
| 1539 | { |
| 1540 | int rv; |
| 1541 | AFS_GLOCK(); |
| 1542 | rv = afs_lockedvnodeops.vop_remove(a, b, c); |
| 1543 | AFS_GUNLOCK(); |
| 1544 | return rv; |
| 1545 | } |
| 1546 | |
| 1547 | int |
| 1548 | mp_afs_link(AFS_MP_VC_ARG(*a), vnode_t * b, char *c, struct cred *d) |
| 1549 | { |
| 1550 | int rv; |
| 1551 | AFS_GLOCK(); |
| 1552 | rv = afs_lockedvnodeops.vop_link(a, b, c, d); |
| 1553 | AFS_GUNLOCK(); |
| 1554 | return rv; |
| 1555 | } |
| 1556 | |
| 1557 | int |
| 1558 | mp_afs_rename(AFS_MP_VC_ARG(*a), char *b, vnode_t * c, char *d, |
| 1559 | struct pathname *e, struct cred *f) |
| 1560 | { |
| 1561 | int rv; |
| 1562 | AFS_GLOCK(); |
| 1563 | rv = afs_lockedvnodeops.vop_rename(a, b, c, d, e, f); |
| 1564 | AFS_GUNLOCK(); |
| 1565 | return rv; |
| 1566 | } |
| 1567 | |
| 1568 | int |
| 1569 | mp_afs_mkdir(AFS_MP_VC_ARG(*a), char *b, struct vattr *c, vnode_t ** d, |
| 1570 | struct cred *e) |
| 1571 | { |
| 1572 | int rv; |
| 1573 | AFS_GLOCK(); |
| 1574 | rv = afs_lockedvnodeops.vop_mkdir(a, b, c, d, e); |
| 1575 | AFS_GUNLOCK(); |
| 1576 | return rv; |
| 1577 | } |
| 1578 | |
| 1579 | int |
| 1580 | mp_afs_rmdir(AFS_MP_VC_ARG(*a), char *b, vnode_t * c, struct cred *d) |
| 1581 | { |
| 1582 | int rv; |
| 1583 | AFS_GLOCK(); |
| 1584 | rv = afs_lockedvnodeops.vop_rmdir(a, b, c, d); |
| 1585 | AFS_GUNLOCK(); |
| 1586 | return rv; |
| 1587 | } |
| 1588 | |
| 1589 | int |
| 1590 | mp_afs_readdir(AFS_MP_VC_ARG(*a), struct uio *b, struct cred *c, int *d) |
| 1591 | { |
| 1592 | int rv; |
| 1593 | AFS_GLOCK(); |
| 1594 | rv = afs_lockedvnodeops.vop_readdir(a, b, c, d); |
| 1595 | AFS_GUNLOCK(); |
| 1596 | return rv; |
| 1597 | } |
| 1598 | |
| 1599 | int |
| 1600 | mp_afs_symlink(AFS_MP_VC_ARG(*a), char *b, struct vattr *c, char *d, |
| 1601 | struct cred *e) |
| 1602 | { |
| 1603 | int rv; |
| 1604 | AFS_GLOCK(); |
| 1605 | rv = afs_lockedvnodeops.vop_symlink(a, b, c, d, e); |
| 1606 | AFS_GUNLOCK(); |
| 1607 | return rv; |
| 1608 | } |
| 1609 | |
| 1610 | int |
| 1611 | mp_afs_readlink(AFS_MP_VC_ARG(*a), struct uio *b, struct cred *c) |
| 1612 | { |
| 1613 | int rv; |
| 1614 | AFS_GLOCK(); |
| 1615 | rv = afs_lockedvnodeops.vop_readlink(a, b, c); |
| 1616 | AFS_GUNLOCK(); |
| 1617 | return rv; |
| 1618 | } |
| 1619 | |
| 1620 | int |
| 1621 | mp_afs_fsync(AFS_MP_VC_ARG(*a), int b, struct cred *c |
| 1622 | #ifdef AFS_SGI65_ENV |
| 1623 | , off_t start, off_t stop |
| 1624 | #endif |
| 1625 | ) |
| 1626 | { |
| 1627 | int rv; |
| 1628 | AFS_GLOCK(); |
| 1629 | rv = afs_lockedvnodeops.vop_fsync(a, b, c |
| 1630 | #ifdef AFS_SGI65_ENV |
| 1631 | , start, stop |
| 1632 | #endif |
| 1633 | ); |
| 1634 | AFS_GUNLOCK(); |
| 1635 | return rv; |
| 1636 | } |
| 1637 | |
| 1638 | void |
| 1639 | mp_afs_inactive(AFS_MP_VC_ARG(*a), struct cred *b) |
| 1640 | { |
| 1641 | AFS_GLOCK(); |
| 1642 | afs_lockedvnodeops.vop_inactive(a, b); |
| 1643 | AFS_GUNLOCK(); |
| 1644 | return; |
| 1645 | } |
| 1646 | |
| 1647 | int |
| 1648 | mp_afs_fid(AFS_MP_VC_ARG(*a), struct fid **b) |
| 1649 | { |
| 1650 | int rv; |
| 1651 | AFS_GLOCK(); |
| 1652 | rv = afs_lockedvnodeops.vop_fid(a, b); |
| 1653 | AFS_GUNLOCK(); |
| 1654 | return rv; |
| 1655 | } |
| 1656 | |
| 1657 | int |
| 1658 | mp_afs_fid2(AFS_MP_VC_ARG(*a), struct fid *b) |
| 1659 | { |
| 1660 | int rv; |
| 1661 | AFS_GLOCK(); |
| 1662 | rv = afs_lockedvnodeops.vop_fid2(a, b); |
| 1663 | AFS_GUNLOCK(); |
| 1664 | return rv; |
| 1665 | } |
| 1666 | |
| 1667 | void |
| 1668 | mp_afs_rwlock(AFS_MP_VC_ARG(*a), AFS_RWLOCK_T b) |
| 1669 | { |
| 1670 | AFS_GLOCK(); |
| 1671 | afs_rwlock(a, VRWLOCK_WRITE); |
| 1672 | AFS_GUNLOCK(); |
| 1673 | } |
| 1674 | |
| 1675 | void |
| 1676 | mp_afs_rwunlock(AFS_MP_VC_ARG(*a), AFS_RWLOCK_T b) |
| 1677 | { |
| 1678 | AFS_GLOCK(); |
| 1679 | afs_rwunlock(a, VRWLOCK_WRITE); |
| 1680 | AFS_GUNLOCK(); |
| 1681 | } |
| 1682 | |
| 1683 | int |
| 1684 | mp_afs_seek(AFS_MP_VC_ARG(*a), off_t b, off_t * c) |
| 1685 | { |
| 1686 | int rv; |
| 1687 | AFS_GLOCK(); |
| 1688 | rv = afs_lockedvnodeops.vop_seek(a, b, c); |
| 1689 | AFS_GUNLOCK(); |
| 1690 | return rv; |
| 1691 | } |
| 1692 | |
| 1693 | int |
| 1694 | mp_fs_cmp(AFS_MP_VC_ARG(*a), vnode_t * b) |
| 1695 | { |
| 1696 | int rv; |
| 1697 | AFS_GLOCK(); |
| 1698 | rv = afs_lockedvnodeops.vop_cmp(a, b); |
| 1699 | AFS_GUNLOCK(); |
| 1700 | return rv; |
| 1701 | } |
| 1702 | |
| 1703 | int |
| 1704 | mp_afs_frlock(AFS_MP_VC_ARG(*a), int b, struct flock *c, int d, off_t e, |
| 1705 | #ifdef AFS_SGI65_ENV |
| 1706 | vrwlock_t vrwlock, |
| 1707 | #endif |
| 1708 | struct cred *f) |
| 1709 | { |
| 1710 | int rv; |
| 1711 | AFS_GLOCK(); |
| 1712 | rv = afs_lockedvnodeops.vop_frlock(a, b, c, d, e, |
| 1713 | #ifdef AFS_SGI65_ENV |
| 1714 | vrwlock, |
| 1715 | #endif |
| 1716 | f); |
| 1717 | AFS_GUNLOCK(); |
| 1718 | return rv; |
| 1719 | } |
| 1720 | |
| 1721 | int |
| 1722 | mp_afs_realvp(AFS_MP_VC_ARG(*a), vnode_t ** b) |
| 1723 | { |
| 1724 | int rv; |
| 1725 | AFS_GLOCK(); |
| 1726 | rv = afs_lockedvnodeops.vop_realvp(a, b); |
| 1727 | AFS_GUNLOCK(); |
| 1728 | return rv; |
| 1729 | } |
| 1730 | |
| 1731 | int |
| 1732 | mp_afs_bmap(AFS_MP_VC_ARG(*a), off_t b, ssize_t c, int d, struct cred *e, |
| 1733 | struct bmapval *f, int *g) |
| 1734 | { |
| 1735 | int rv; |
| 1736 | AFS_GLOCK(); |
| 1737 | rv = afs_lockedvnodeops.vop_bmap(a, b, c, d, e, f, g); |
| 1738 | AFS_GUNLOCK(); |
| 1739 | return rv; |
| 1740 | } |
| 1741 | |
| 1742 | void |
| 1743 | mp_afs_strategy(AFS_MP_VC_ARG(*a), struct buf *b) |
| 1744 | { |
| 1745 | int rv; |
| 1746 | AFS_GLOCK(); |
| 1747 | afs_lockedvnodeops.vop_strategy(a, b); |
| 1748 | AFS_GUNLOCK(); |
| 1749 | return; |
| 1750 | } |
| 1751 | |
| 1752 | #ifdef AFS_SGI65_ENV |
| 1753 | int |
| 1754 | mp_afs_map(AFS_MP_VC_ARG(*a), off_t b, size_t c, mprot_t d, u_int e, |
| 1755 | struct cred *f, vnode_t ** g) |
| 1756 | #else |
| 1757 | int |
| 1758 | mp_afs_map(AFS_MP_VC_ARG(*a), off_t b, struct pregion *c, char **d, size_t e, |
| 1759 | u_int f, u_int g, u_int h, struct cred *i) |
| 1760 | #endif |
| 1761 | { |
| 1762 | int rv; |
| 1763 | AFS_GLOCK(); |
| 1764 | rv = afs_lockedvnodeops.vop_map(a, b, c, d, e, f, g |
| 1765 | #ifndef AFS_SGI65_ENV |
| 1766 | , h, i |
| 1767 | #endif |
| 1768 | ); |
| 1769 | AFS_GUNLOCK(); |
| 1770 | return rv; |
| 1771 | } |
| 1772 | |
| 1773 | |
| 1774 | #ifndef AFS_SGI65_ENV |
| 1775 | /* As of Irix 6.5, addmap and delmap are only for devices */ |
| 1776 | int |
| 1777 | mp_afs_addmap(AFS_MP_VC_ARG(*a), off_t b, struct pregion *c, addr_t d, |
| 1778 | size_t e, u_int f, u_int g, u_int h, struct cred *i) |
| 1779 | { |
| 1780 | int rv; |
| 1781 | AFS_GLOCK(); |
| 1782 | rv = afs_lockedvnodeops.vop_addmap(a, b, c, d, e, f, g, h, i); |
| 1783 | AFS_GUNLOCK(); |
| 1784 | return rv; |
| 1785 | } |
| 1786 | |
| 1787 | int |
| 1788 | mp_afs_delmap(AFS_MP_VC_ARG(*a), off_t b, struct pregion *c, addr_t d, |
| 1789 | size_t e, u_int f, u_int g, u_int h, struct cred *i) |
| 1790 | { |
| 1791 | int rv; |
| 1792 | AFS_GLOCK(); |
| 1793 | rv = afs_lockedvnodeops.vop_delmap(a, b, c, d, e, f, g, h, i); |
| 1794 | AFS_GUNLOCK(); |
| 1795 | return rv; |
| 1796 | } |
| 1797 | #endif /* ! AFS_SGI65_ENV */ |
| 1798 | |
| 1799 | int |
| 1800 | mp_fs_poll(AFS_MP_VC_ARG(*a), short b, int c, short *d, struct pollhead **e |
| 1801 | #ifdef AFS_SGI65_ENV |
| 1802 | , unsigned int *f |
| 1803 | #endif |
| 1804 | ) |
| 1805 | { |
| 1806 | int rv; |
| 1807 | AFS_GLOCK(); |
| 1808 | rv = afs_lockedvnodeops.vop_poll(a, b, c, d, e |
| 1809 | #ifdef AFS_SGI65_ENV |
| 1810 | , f |
| 1811 | #endif |
| 1812 | ); |
| 1813 | AFS_GUNLOCK(); |
| 1814 | return rv; |
| 1815 | } |
| 1816 | |
| 1817 | |
| 1818 | struct vnodeops Afs_vnodeops = { |
| 1819 | #ifdef AFS_SGI64_ENV |
| 1820 | #ifdef AFS_SGI65_ENV |
| 1821 | BHV_IDENTITY_INIT_POSITION(VNODE_POSITION_BASE), |
| 1822 | #else |
| 1823 | VNODE_POSITION_BASE, |
| 1824 | #endif |
| 1825 | #endif |
| 1826 | mp_afs_open, |
| 1827 | mp_afs_close, |
| 1828 | mp_afs_read, |
| 1829 | mp_afs_write, |
| 1830 | mp_afs_ioctl, |
| 1831 | mp_fs_setfl, |
| 1832 | mp_afs_getattr, |
| 1833 | mp_afs_setattr, |
| 1834 | mp_afs_access, |
| 1835 | mp_afs_lookup, |
| 1836 | mp_afs_create, |
| 1837 | mp_afs_remove, |
| 1838 | mp_afs_link, |
| 1839 | mp_afs_rename, |
| 1840 | mp_afs_mkdir, |
| 1841 | mp_afs_rmdir, |
| 1842 | mp_afs_readdir, |
| 1843 | mp_afs_symlink, |
| 1844 | mp_afs_readlink, |
| 1845 | mp_afs_fsync, |
| 1846 | mp_afs_inactive, |
| 1847 | mp_afs_fid, |
| 1848 | mp_afs_fid2, |
| 1849 | mp_afs_rwlock, |
| 1850 | mp_afs_rwunlock, |
| 1851 | mp_afs_seek, |
| 1852 | mp_fs_cmp, |
| 1853 | mp_afs_frlock, |
| 1854 | fs_nosys, /* realvp */ |
| 1855 | mp_afs_bmap, |
| 1856 | mp_afs_strategy, |
| 1857 | mp_afs_map, |
| 1858 | #ifdef AFS_SGI65_ENV |
| 1859 | fs_noerr, /* addmap - devices only */ |
| 1860 | fs_noerr, /* delmap - devices only */ |
| 1861 | #else |
| 1862 | mp_afs_addmap, |
| 1863 | mp_afs_delmap, |
| 1864 | #endif |
| 1865 | mp_fs_poll, /* poll */ |
| 1866 | fs_nosys, /* dump */ |
| 1867 | fs_pathconf, |
| 1868 | fs_nosys, /* allocstore */ |
| 1869 | fs_nosys, /* fcntl */ |
| 1870 | afs_reclaim, /* reclaim */ |
| 1871 | fs_nosys, /* attr_get */ |
| 1872 | fs_nosys, /* attr_set */ |
| 1873 | fs_nosys, /* attr_remove */ |
| 1874 | fs_nosys, /* attr_list */ |
| 1875 | #ifdef AFS_SGI64_ENV |
| 1876 | #ifdef AFS_SGI65_ENV |
| 1877 | fs_cover, |
| 1878 | (vop_link_removed_t) fs_noval, |
| 1879 | fs_vnode_change, |
| 1880 | fs_tosspages, |
| 1881 | fs_flushinval_pages, |
| 1882 | fs_flush_pages, |
| 1883 | fs_invalfree_pages, |
| 1884 | fs_pages_sethole, |
| 1885 | (vop_commit_t) fs_nosys, |
| 1886 | (vop_readbuf_t) fs_nosys, |
| 1887 | fs_strgetmsg, |
| 1888 | fs_strputmsg, |
| 1889 | #else |
| 1890 | fs_mount, |
| 1891 | #endif |
| 1892 | #endif |
| 1893 | }; |
| 1894 | struct vnodeops *afs_ops = &Afs_vnodeops; |
| 1895 | #endif /* MP */ |
| 1896 | |
| 1897 | |
| 1898 | /* Support for XFS caches. The assumption here is that the size of |
| 1899 | * a cache file also does not exceed 32 bits. |
| 1900 | */ |
| 1901 | |
| 1902 | /* Initialized in osi_InitCacheFSType(). Used to determine inode type. */ |
| 1903 | vnodeops_t *afs_xfs_vnodeopsp; |
| 1904 | |
| 1905 | ino_t |
| 1906 | VnodeToIno(vnode_t * vp) |
| 1907 | { |
| 1908 | int code; |
| 1909 | struct vattr vattr; |
| 1910 | |
| 1911 | vattr.va_mask = AT_FSID | AT_NODEID; /* quick return using this mask. */ |
| 1912 | AFS_GUNLOCK(); |
| 1913 | AFS_VOP_GETATTR(vp, &vattr, 0, OSI_GET_CURRENT_CRED(), code); |
| 1914 | AFS_GLOCK(); |
| 1915 | if (code) { |
| 1916 | osi_Panic("VnodeToIno"); |
| 1917 | } |
| 1918 | return vattr.va_nodeid; |
| 1919 | } |
| 1920 | |
| 1921 | dev_t |
| 1922 | VnodeToDev(vnode_t * vp) |
| 1923 | { |
| 1924 | int code; |
| 1925 | struct vattr vattr; |
| 1926 | |
| 1927 | vattr.va_mask = AT_FSID | AT_NODEID; /* quick return using this mask. */ |
| 1928 | AFS_GUNLOCK(); |
| 1929 | AFS_VOP_GETATTR(vp, &vattr, 0, OSI_GET_CURRENT_CRED(), code); |
| 1930 | AFS_GLOCK(); |
| 1931 | if (code) { |
| 1932 | osi_Panic("VnodeToDev"); |
| 1933 | } |
| 1934 | return (dev_t) vattr.va_fsid; |
| 1935 | } |
| 1936 | |
| 1937 | off_t |
| 1938 | VnodeToSize(vnode_t * vp) |
| 1939 | { |
| 1940 | int code; |
| 1941 | struct vattr vattr; |
| 1942 | |
| 1943 | vattr.va_mask = AT_SIZE; |
| 1944 | AFS_GUNLOCK(); |
| 1945 | AFS_VOP_GETATTR(vp, &vattr, 0, OSI_GET_CURRENT_CRED(), code); |
| 1946 | AFS_GLOCK(); |
| 1947 | if (code) { |
| 1948 | osi_Panic("VnodeToSize"); |
| 1949 | } |
| 1950 | return vattr.va_size; |
| 1951 | } |
| 1952 | #endif /* AFS_SGI62_ENV */ |