vfs_mountroot.c (5c9ef378541ddaf6c7606a454ba992c610c09dd0) vfs_mountroot.c (6e646651d358c6de266562e0dc5c621b7ea4cd8d)
1/*-
2 * Copyright (c) 2010 Marcel Moolenaar
3 * Copyright (c) 1999-2004 Poul-Henning Kamp
4 * Copyright (c) 1999 Michael Smith
5 * Copyright (c) 1989, 1993
6 * The Regents of the University of California. All rights reserved.
7 * (c) UNIX System Laboratories, Inc.
8 * All or some portions of this file are derived from material licensed

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233
234 mtx_lock(&mountlist_mtx);
235 TAILQ_INSERT_HEAD(&mountlist, mp, mnt_list);
236 mtx_unlock(&mountlist_mtx);
237
238 *mpp = mp;
239 set_rootvnode();
240
1/*-
2 * Copyright (c) 2010 Marcel Moolenaar
3 * Copyright (c) 1999-2004 Poul-Henning Kamp
4 * Copyright (c) 1999 Michael Smith
5 * Copyright (c) 1989, 1993
6 * The Regents of the University of California. All rights reserved.
7 * (c) UNIX System Laboratories, Inc.
8 * All or some portions of this file are derived from material licensed

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233
234 mtx_lock(&mountlist_mtx);
235 TAILQ_INSERT_HEAD(&mountlist, mp, mnt_list);
236 mtx_unlock(&mountlist_mtx);
237
238 *mpp = mp;
239 set_rootvnode();
240
241 error = kern_symlink(td, "/", "dev", UIO_SYSSPACE);
241 error = kern_symlinkat(td, "/", AT_FDCWD, "dev", UIO_SYSSPACE);
242 if (error)
243 printf("kern_symlink /dev -> / returns %d\n", error);
244
245 return (error);
246}
247
248static int
249vfs_mountroot_shuffle(struct thread *td, struct mount *mpdevfs)

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345 if (error && bootverbose)
346 printf("mountroot: unable to remount devfs under /dev "
347 "(error %d).\n", error);
348 NDFREE(&nd, NDF_ONLY_PNBUF);
349
350 if (mporoot == mpdevfs) {
351 vfs_unbusy(mpdevfs);
352 /* Unlink the no longer needed /dev/dev -> / symlink */
242 if (error)
243 printf("kern_symlink /dev -> / returns %d\n", error);
244
245 return (error);
246}
247
248static int
249vfs_mountroot_shuffle(struct thread *td, struct mount *mpdevfs)

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345 if (error && bootverbose)
346 printf("mountroot: unable to remount devfs under /dev "
347 "(error %d).\n", error);
348 NDFREE(&nd, NDF_ONLY_PNBUF);
349
350 if (mporoot == mpdevfs) {
351 vfs_unbusy(mpdevfs);
352 /* Unlink the no longer needed /dev/dev -> / symlink */
353 error = kern_unlink(td, "/dev/dev", UIO_SYSSPACE);
353 error = kern_unlinkat(td, AT_FDCWD, "/dev/dev",
354 UIO_SYSSPACE, 0);
354 if (error && bootverbose)
355 printf("mountroot: unable to unlink /dev/dev "
356 "(error %d)\n", error);
357 }
358
359 return (0);
360}
361

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519
520 len = strlen(tok);
521 mdio = malloc(sizeof(*mdio) + len + 1, M_TEMP, M_WAITOK | M_ZERO);
522 path = (void *)(mdio + 1);
523 bcopy(tok, path, len);
524 free(tok, M_TEMP);
525
526 /* Get file status. */
355 if (error && bootverbose)
356 printf("mountroot: unable to unlink /dev/dev "
357 "(error %d)\n", error);
358 }
359
360 return (0);
361}
362

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520
521 len = strlen(tok);
522 mdio = malloc(sizeof(*mdio) + len + 1, M_TEMP, M_WAITOK | M_ZERO);
523 path = (void *)(mdio + 1);
524 bcopy(tok, path, len);
525 free(tok, M_TEMP);
526
527 /* Get file status. */
527 error = kern_stat(td, path, UIO_SYSSPACE, &sb);
528 error = kern_statat(td, 0, AT_FDCWD, path, UIO_SYSSPACE, &sb, NULL);
528 if (error)
529 goto out;
530
531 /* Open /dev/mdctl so that we can attach/detach. */
529 if (error)
530 goto out;
531
532 /* Open /dev/mdctl so that we can attach/detach. */
532 error = kern_open(td, "/dev/" MDCTL_NAME, UIO_SYSSPACE, O_RDWR, 0);
533 error = kern_openat(td, AT_FDCWD, "/dev/" MDCTL_NAME, UIO_SYSSPACE,
534 O_RDWR, 0);
533 if (error)
534 goto out;
535
536 fd = td->td_retval[0];
537 mdio->md_version = MDIOVERSION;
538 mdio->md_type = MD_VNODE;
539
540 if (root_mount_mddev != -1) {

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535 if (error)
536 goto out;
537
538 fd = td->td_retval[0];
539 mdio->md_version = MDIOVERSION;
540 mdio->md_type = MD_VNODE;
541
542 if (root_mount_mddev != -1) {

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