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ntfs_subr.c (60041) ntfs_subr.c (66615)
1/* $NetBSD: ntfs_subr.c,v 1.23 1999/10/31 19:45:26 jdolecek Exp $ */
2
3/*-
4 * Copyright (c) 1998, 1999 Semen Ustimenko (semenu@FreeBSD.org)
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

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20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
1/* $NetBSD: ntfs_subr.c,v 1.23 1999/10/31 19:45:26 jdolecek Exp $ */
2
3/*-
4 * Copyright (c) 1998, 1999 Semen Ustimenko (semenu@FreeBSD.org)
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

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20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/fs/ntfs/ntfs_subr.c 60041 2000-05-05 09:59:14Z phk $
28 * $FreeBSD: head/sys/fs/ntfs/ntfs_subr.c 66615 2000-10-04 01:29:17Z jasone $
29 */
30
31#include <sys/param.h>
32#include <sys/types.h>
33#include <sys/systm.h>
34#include <sys/namei.h>
35#include <sys/proc.h>
36#include <sys/kernel.h>

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356 */
357int
358ntfs_ntget(ip)
359 struct ntnode *ip;
360{
361 dprintf(("ntfs_ntget: get ntnode %d: %p, usecount: %d\n",
362 ip->i_number, ip, ip->i_usecount));
363
29 */
30
31#include <sys/param.h>
32#include <sys/types.h>
33#include <sys/systm.h>
34#include <sys/namei.h>
35#include <sys/proc.h>
36#include <sys/kernel.h>

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356 */
357int
358ntfs_ntget(ip)
359 struct ntnode *ip;
360{
361 dprintf(("ntfs_ntget: get ntnode %d: %p, usecount: %d\n",
362 ip->i_number, ip, ip->i_usecount));
363
364 simple_lock(&ip->i_interlock);
364 mtx_enter(&ip->i_interlock, MTX_DEF);
365 ip->i_usecount++;
366 LOCKMGR(&ip->i_lock, LK_EXCLUSIVE | LK_INTERLOCK, &ip->i_interlock);
367
368 return 0;
369}
370
371/*
372 * Routine search ntnode in hash, if found: lock, inc usecount and return.

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405 ip->i_dev = ntmp->ntm_dev;
406 ip->i_number = ino;
407 ip->i_mp = ntmp;
408
409 LIST_INIT(&ip->i_fnlist);
410
411 /* init lock and lock the newborn ntnode */
412 lockinit(&ip->i_lock, PINOD, "ntnode", 0, LK_EXCLUSIVE);
365 ip->i_usecount++;
366 LOCKMGR(&ip->i_lock, LK_EXCLUSIVE | LK_INTERLOCK, &ip->i_interlock);
367
368 return 0;
369}
370
371/*
372 * Routine search ntnode in hash, if found: lock, inc usecount and return.

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405 ip->i_dev = ntmp->ntm_dev;
406 ip->i_number = ino;
407 ip->i_mp = ntmp;
408
409 LIST_INIT(&ip->i_fnlist);
410
411 /* init lock and lock the newborn ntnode */
412 lockinit(&ip->i_lock, PINOD, "ntnode", 0, LK_EXCLUSIVE);
413 simple_lock_init(&ip->i_interlock);
413 mtx_init(&ip->i_interlock, "ntnode interlock", MTX_DEF);
414 ntfs_ntget(ip);
415
416 ntfs_nthashins(ip);
417
418 LOCKMGR(&ntfs_hashlock, LK_RELEASE, NULL);
419
420 *ipp = ip;
421

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435ntfs_ntput(ip)
436 struct ntnode *ip;
437{
438 struct ntvattr *vap;
439
440 dprintf(("ntfs_ntput: rele ntnode %d: %p, usecount: %d\n",
441 ip->i_number, ip, ip->i_usecount));
442
414 ntfs_ntget(ip);
415
416 ntfs_nthashins(ip);
417
418 LOCKMGR(&ntfs_hashlock, LK_RELEASE, NULL);
419
420 *ipp = ip;
421

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435ntfs_ntput(ip)
436 struct ntnode *ip;
437{
438 struct ntvattr *vap;
439
440 dprintf(("ntfs_ntput: rele ntnode %d: %p, usecount: %d\n",
441 ip->i_number, ip, ip->i_usecount));
442
443 simple_lock(&ip->i_interlock);
443 mtx_enter(&ip->i_interlock, MTX_DEF);
444 ip->i_usecount--;
445
446#ifdef DIAGNOSTIC
447 if (ip->i_usecount < 0) {
448 panic("ntfs_ntput: ino: %d usecount: %d \n",
449 ip->i_number,ip->i_usecount);
450 }
451#endif

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459
460 ntfs_nthashrem(ip);
461
462 while (ip->i_valist.lh_first != NULL) {
463 vap = ip->i_valist.lh_first;
464 LIST_REMOVE(vap,va_list);
465 ntfs_freentvattr(vap);
466 }
444 ip->i_usecount--;
445
446#ifdef DIAGNOSTIC
447 if (ip->i_usecount < 0) {
448 panic("ntfs_ntput: ino: %d usecount: %d \n",
449 ip->i_number,ip->i_usecount);
450 }
451#endif

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459
460 ntfs_nthashrem(ip);
461
462 while (ip->i_valist.lh_first != NULL) {
463 vap = ip->i_valist.lh_first;
464 LIST_REMOVE(vap,va_list);
465 ntfs_freentvattr(vap);
466 }
467 mtx_exit(&ip->i_interlock, MTX_DEF);
468 mtx_destroy(&ip->i_interlock);
469 lockdestroy(&ip->i_lock);
470
467 FREE(ip, M_NTFSNTNODE);
468 } else {
469 LOCKMGR(&ip->i_lock, LK_RELEASE|LK_INTERLOCK, &ip->i_interlock);
470 }
471}
472
473/*
474 * increment usecount of ntnode
475 */
476void
477ntfs_ntref(ip)
478 struct ntnode *ip;
479{
471 FREE(ip, M_NTFSNTNODE);
472 } else {
473 LOCKMGR(&ip->i_lock, LK_RELEASE|LK_INTERLOCK, &ip->i_interlock);
474 }
475}
476
477/*
478 * increment usecount of ntnode
479 */
480void
481ntfs_ntref(ip)
482 struct ntnode *ip;
483{
480 simple_lock(&ip->i_interlock);
484 mtx_enter(&ip->i_interlock, MTX_DEF);
481 ip->i_usecount++;
485 ip->i_usecount++;
482 simple_unlock(&ip->i_interlock);
486 mtx_exit(&ip->i_interlock, MTX_DEF);
483
484 dprintf(("ntfs_ntref: ino %d, usecount: %d\n",
485 ip->i_number, ip->i_usecount));
486
487}
488
489/*
490 * Decrement usecount of ntnode.
491 */
492void
493ntfs_ntrele(ip)
494 struct ntnode *ip;
495{
496 dprintf(("ntfs_ntrele: rele ntnode %d: %p, usecount: %d\n",
497 ip->i_number, ip, ip->i_usecount));
498
487
488 dprintf(("ntfs_ntref: ino %d, usecount: %d\n",
489 ip->i_number, ip->i_usecount));
490
491}
492
493/*
494 * Decrement usecount of ntnode.
495 */
496void
497ntfs_ntrele(ip)
498 struct ntnode *ip;
499{
500 dprintf(("ntfs_ntrele: rele ntnode %d: %p, usecount: %d\n",
501 ip->i_number, ip, ip->i_usecount));
502
499 simple_lock(&ip->i_interlock);
503 mtx_enter(&ip->i_interlock, MTX_DEF);
500 ip->i_usecount--;
501
502 if (ip->i_usecount < 0)
503 panic("ntfs_ntrele: ino: %d usecount: %d \n",
504 ip->i_number,ip->i_usecount);
504 ip->i_usecount--;
505
506 if (ip->i_usecount < 0)
507 panic("ntfs_ntrele: ino: %d usecount: %d \n",
508 ip->i_number,ip->i_usecount);
505 simple_unlock(&ip->i_interlock);
509 mtx_exit(&ip->i_interlock, MTX_DEF);
506}
507
508/*
509 * Deallocate all memory allocated for ntvattr
510 */
511void
512ntfs_freentvattr(vap)
513 struct ntvattr * vap;

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766 dprintf(("ntfs_frele: fnode: %p for %d: %p\n", fp, ip->i_number, ip));
767
768 dprintf(("ntfs_frele: deallocating fnode\n"));
769 LIST_REMOVE(fp,f_fnlist);
770 if (fp->f_flag & FN_AATTRNAME)
771 FREE(fp->f_attrname, M_TEMP);
772 if (fp->f_dirblbuf)
773 FREE(fp->f_dirblbuf, M_NTFSDIR);
510}
511
512/*
513 * Deallocate all memory allocated for ntvattr
514 */
515void
516ntfs_freentvattr(vap)
517 struct ntvattr * vap;

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770 dprintf(("ntfs_frele: fnode: %p for %d: %p\n", fp, ip->i_number, ip));
771
772 dprintf(("ntfs_frele: deallocating fnode\n"));
773 LIST_REMOVE(fp,f_fnlist);
774 if (fp->f_flag & FN_AATTRNAME)
775 FREE(fp->f_attrname, M_TEMP);
776 if (fp->f_dirblbuf)
777 FREE(fp->f_dirblbuf, M_NTFSDIR);
778#ifdef __FreeBSD__
779 lockdestroy(&fp->f_lock);
780#endif
774 FREE(fp, M_NTFSFNODE);
775 ntfs_ntrele(ip);
776}
777
778/*
779 * Lookup attribute name in format: [[:$ATTR_TYPE]:$ATTR_NAME],
780 * $ATTR_TYPE is searched in attrdefs read from $AttrDefs.
781 * If $ATTR_TYPE nott specifed, ATTR_A_DATA assumed.

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1910void
1911ntfs_toupper_init()
1912{
1913 ntfs_toupper_tab = (wchar *) NULL;
1914 lockinit(&ntfs_toupper_lock, PVFS, "ntfs_toupper", 0, 0);
1915 ntfs_toupper_usecount = 0;
1916}
1917
781 FREE(fp, M_NTFSFNODE);
782 ntfs_ntrele(ip);
783}
784
785/*
786 * Lookup attribute name in format: [[:$ATTR_TYPE]:$ATTR_NAME],
787 * $ATTR_TYPE is searched in attrdefs read from $AttrDefs.
788 * If $ATTR_TYPE nott specifed, ATTR_A_DATA assumed.

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1917void
1918ntfs_toupper_init()
1919{
1920 ntfs_toupper_tab = (wchar *) NULL;
1921 lockinit(&ntfs_toupper_lock, PVFS, "ntfs_toupper", 0, 0);
1922 ntfs_toupper_usecount = 0;
1923}
1924
1925void
1926ntfs_toupper_destroy(void)
1927{
1928
1929 lockdestroy(&ntfs_toupper_lock);
1930}
1931
1918/*
1919 * if the ntfs_toupper_tab[] is filled already, just raise use count;
1920 * otherwise read the data from the filesystem we are currently mounting
1921 */
1922int
1923ntfs_toupper_use(mp, ntmp)
1924 struct mount *mp;
1925 struct ntfsmount *ntmp;

--- 71 unchanged lines hidden --- 		1932/*
1933 * if the ntfs_toupper_tab[] is filled already, just raise use count;
1934 * otherwise read the data from the filesystem we are currently mounting
1935 */
1936int
1937ntfs_toupper_use(mp, ntmp)
1938 struct mount *mp;
1939 struct ntfsmount *ntmp;

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