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Diff for /src/sys/coda/coda_vnops.c between version 1.13 and 1.13.2.1

version 1.13, 1999/10/01 22:26:00 version 1.13.2.1, 1999/12/27 18:34:22
Line 53  symlink
Line 53  symlink
  * M. Satyanarayanan.   * M. Satyanarayanan.
  */   */
   
 /*  
  * HISTORY  
  * $Log$  
  * Revision 1.13  1999/10/01 22:26:00  soren  
  * Account for widened v_usecount in struct vnode.  
  *  
  * Revision 1.12  1999/09/18 05:31:42  matt  
  * Make this compile on alpha again.  
  *  
  * Revision 1.11  1999/08/03 20:19:18  wrstuden  
  * Add support for fcntl(2) to generate VOP_FCNTL calls. Any fcntl  
  * call with F_FSCTL set and F_SETFL calls generate calls to a new  
  * fileop fo_fcntl. Add genfs_fcntl() and soo_fcntl() which return 0  
  * for F_SETFL and EOPNOTSUPP otherwise. Have all leaf filesystems  
  * use genfs_fcntl().  
  *  
  * Reviewed by: thorpej  
  * Tested by: wrstuden  
  *  
  * Revision 1.10  1999/07/08 01:26:23  wrstuden  
  * Bump osrelease to 1.4E. Add layerfs files, remove null_subr.c.  
  *  
  * Update coda to new struct lock in struct vnode.  
  *  
  * make fdescfs, kernfs, portalfs, and procfs actually lock their vnodes.  
  * It's not that hard.  
  *  
  * Make unionfs set v_vnlock = NULL so any overlayed fs will call its  
  * VOP_LOCK.  
  *  
  * Revision 1.9  1998/12/10 02:22:52  rvb  
  * Commit a couple of old fixes  
  *  
  * Revision 1.8  1998/11/09 16:36:16  rvb  
  * Change the way unmounting happens to guarantee that the  
  * client programs are allowed to finish up (coda_call is  
  * forced to complete) and release their locks.  Thus there  
  * is a reasonable chance that the vflush implicit in the  
  * unmount will not get hung on held locks.  
  *  
  * Revision 1.7  1998/09/28 17:55:22  rvb  
  * I want to distinguish from DEBUG printouts and CODA_VERBOSE printouts.  
  * The latter are normal informational messages that are sometimes  
  * interesting to view.  
  *  
  * Revision 1.6  1998/09/26 15:24:47  tv  
  * DIAGNOSTIC -> DEBUG for all non-panic messages.  DIAGNOSTIC is only for  
  * sanity checks and should not turn on any messages not already printed  
  * without it.  
  *  
  * Revision 1.5  1998/09/25 15:01:13  rvb  
  * Conditionalize "stray" printouts under DIAGNOSTIC and DEBUG.  
  * Make files compile if DEBUG is on (from  Alan Barrett).  Finally,  
  * make coda an lkm.  
  *  
  * Revision 1.4  1998/09/15 02:03:00  rvb  
  * Final piece of rename cfs->coda  
  *  
  * Revision 1.3  1998/09/12 15:05:49  rvb  
  * Change cfs/CFS in symbols, strings and constants to coda/CODA  
  * to avoid fs conflicts.  
  *  
  * Revision 1.2  1998/09/08 17:12:48  rvb  
  * Pass2 complete  
  *  
  * Revision 1.1.1.1  1998/08/29 21:26:46  rvb  
  * Very Preliminary Coda  
  *  
  * Revision 1.12  1998/08/28 18:28:00  rvb  
  * NetBSD -current is stricter!  
  *  
  * Revision 1.11  1998/08/28 18:12:23  rvb  
  * Now it also works on FreeBSD -current.  This code will be  
  * committed to the FreeBSD -current and NetBSD -current  
  * trees.  It will then be tailored to the particular platform  
  * by flushing conditional code.  
  *  
  * Revision 1.10  1998/08/18 17:05:21  rvb  
  * Don't use __RCSID now  
  *  
  * Revision 1.9  1998/08/18 16:31:46  rvb  
  * Sync the code for NetBSD -current; test on 1.3 later  
  *  
  * Revision 1.8  98/02/24  22:22:50  rvb  
  * Fixes up mainly to flush iopen and friends  
  *  
  * Revision 1.7  98/01/31  20:53:15  rvb  
  * First version that works on FreeBSD 2.2.5  
  *  
  * Revision 1.6  98/01/23  11:53:47  rvb  
  * Bring RVB_CODA1_1 to HEAD  
  *  
  * Revision 1.5.2.8  98/01/23  11:21:11  rvb  
  * Sync with 2.2.5  
  *  
  * Revision 1.5.2.7  97/12/19  14:26:08  rvb  
  * session id  
  *  
  * Revision 1.5.2.6  97/12/16  22:01:34  rvb  
  * Oops add cfs_subr.h cfs_venus.h; sync with peter  
  *  
  * Revision 1.5.2.5  97/12/16  12:40:14  rvb  
  * Sync with 1.3  
  *  
  * Revision 1.5.2.4  97/12/10  14:08:31  rvb  
  * Fix O_ flags; check result in coda_call  
  *  
  * Revision 1.5.2.3  97/12/10  11:40:27  rvb  
  * No more ody  
  *  
  * Revision 1.5.2.2  97/12/09  16:07:15  rvb  
  * Sync with vfs/include/coda.h  
  *  
  * Revision 1.5.2.1  97/12/06  17:41:25  rvb  
  * Sync with peters coda.h  
  *  
  * Revision 1.5  97/12/05  10:39:23  rvb  
  * Read CHANGES  
  *  
  * Revision 1.4.14.10  97/11/25  08:08:48  rvb  
  * cfs_venus ... done; until cred/vattr change  
  *  
  * Revision 1.4.14.9  97/11/24  15:44:48  rvb  
  * Final cfs_venus.c w/o macros, but one locking bug  
  *  
  * Revision 1.4.14.8  97/11/21  11:28:04  rvb  
  * cfs_venus.c is done: first pass  
  *  
  * Revision 1.4.14.7  97/11/20  11:46:51  rvb  
  * Capture current cfs_venus  
  *  
  * Revision 1.4.14.6  97/11/18  10:27:19  rvb  
  * cfs_nbsd.c is DEAD!!!; integrated into cfs_vf/vnops.c  
  * cfs_nb_foo and cfs_foo are joined  
  *  
  * Revision 1.4.14.5  97/11/13  22:03:03  rvb  
  * pass2 cfs_NetBSD.h mt  
  *  
  * Revision 1.4.14.4  97/11/12  12:09:42  rvb  
  * reorg pass1  
  *  
  * Revision 1.4.14.3  97/11/06  21:03:28  rvb  
  * don't include headers in headers  
  *  
  * Revision 1.4.14.2  97/10/29  16:06:30  rvb  
  * Kill DYING  
  *  
  * Revision 1.4.14.1  1997/10/28 23:10:18  rvb  
  * >64Meg; venus can be killed!  
  *  
  * Revision 1.4  1997/02/20 13:54:50  lily  
  * check for NULL return from coda_nc_lookup before CTOV  
  *  
  * Revision 1.3  1996/12/12 22:11:02  bnoble  
  * Fixed the "downcall invokes venus operation" deadlock in all known cases.  
  * There may be more  
  *  
  * Revision 1.2  1996/01/02 16:57:07  bnoble  
  * Added support for Coda MiniCache and raw inode calls (final commit)  
  *  
  * Revision 1.1.2.1  1995/12/20 01:57:34  bnoble  
  * Added CODA-specific files  
  *  
  * Revision 3.1.1.1  1995/03/04  19:08:06  bnoble  
  * Branch for NetBSD port revisions  
  *  
  * Revision 3.1  1995/03/04  19:08:04  bnoble  
  * Bump to major revision 3 to prepare for NetBSD port  
  *  
  * Revision 2.6  1995/02/17  16:25:26  dcs  
  * These versions represent several changes:  
  * 1. Allow venus to restart even if outstanding references exist.  
  * 2. Have only one ctlvp per client, as opposed to one per mounted cfs device.d  
  * 3. Allow ody_expand to return many members, not just one.  
  *  
  * Revision 2.5  94/11/09  20:29:27  dcs  
  * Small bug in remove dealing with hard links and link counts was fixed.  
  *  
  * Revision 2.4  94/10/14  09:58:42  dcs  
  * Made changes 'cause sun4s have braindead compilers  
  *  
  * Revision 2.3  94/10/12  16:46:37  dcs  
  * Cleaned kernel/venus interface by removing XDR junk, plus  
  * so cleanup to allow this code to be more easily ported.  
  *  
  * Revision 2.2  94/09/20  14:12:41  dcs  
  * Fixed bug in rename when moving a directory.  
  *  
  * Revision 2.1  94/07/21  16:25:22  satya  
  * Conversion to C++ 3.0; start of Coda Release 2.0  
  *  
  * Revision 1.4  93/12/17  01:38:01  luqi  
  * Changes made for kernel to pass process info to Venus:  
  *  
  * (1) in file cfs.h  
  * add process id and process group id in most of the cfs argument types.  
  *  
  * (2) in file cfs_vnodeops.c  
  * add process info passing in most of the cfs vnode operations.  
  *  
  * (3) in file cfs_xdr.c  
  * expand xdr routines according changes in (1).  
  * add variable pass_process_info to allow venus for kernel version checking.  
  *  
  * Revision 1.3  93/05/28  16:24:33  bnoble  
  * *** empty log message ***  
  *  
  * Revision 1.2  92/10/27  17:58:25  lily  
  * merge kernel/latest and alpha/src/cfs  
  *  
  * Revision 2.4  92/09/30  14:16:37  mja  
  *      Redid buffer allocation so that it does kmem_{alloc,free} for all  
  *      architectures.  Zone allocation, previously used on the 386, caused  
  *      panics if it was invoked repeatedly.  Stack allocation, previously  
  *      used on all other architectures, tickled some Mach bug that appeared  
  *      with large stack frames.  
  *      [91/02/09            jjk]  
  *  
  *      Added contributors blurb.  
  *      [90/12/13            jjk]  
  *  
  * Revision 2.3  90/07/26  15:50:09  mrt  
  *          Fixed fix to rename to remove .. from moved directories.  
  *      [90/06/28            dcs]  
  *  
  * Revision 1.7  90/06/28  16:24:25  dcs  
  * Fixed bug with moving directories, we weren't flushing .. for the moved directory.  
  *  
  * Revision 1.6  90/05/31  17:01:47  dcs  
  * Prepare for merge with facilities kernel.  
  *  
  *  
  */  
   
 #include <sys/param.h>  #include <sys/param.h>
 #include <sys/systm.h>  #include <sys/systm.h>
 #include <sys/malloc.h>  #include <sys/malloc.h>
Line 561  coda_close(v)
Line 327  coda_close(v)
 #ifdef  hmm  #ifdef  hmm
             vgone(cp->c_ovp);              vgone(cp->c_ovp);
 #else  #else
               vn_lock(cp->c_ovp, LK_EXCLUSIVE | LK_RETRY);
             VOP_CLOSE(cp->c_ovp, flag, cred, p); /* Do errors matter here? */              VOP_CLOSE(cp->c_ovp, flag, cred, p); /* Do errors matter here? */
             vrele(cp->c_ovp);              vput(cp->c_ovp);
 #endif  #endif
         } else {          } else {
 #ifdef  CODA_VERBOSE  #ifdef  CODA_VERBOSE
Line 571  coda_close(v)
Line 338  coda_close(v)
         }          }
         return ENODEV;          return ENODEV;
     } else {      } else {
           vn_lock(cp->c_ovp, LK_EXCLUSIVE | LK_RETRY);
         VOP_CLOSE(cp->c_ovp, flag, cred, p); /* Do errors matter here? */          VOP_CLOSE(cp->c_ovp, flag, cred, p); /* Do errors matter here? */
         vrele(cp->c_ovp);          vput(cp->c_ovp);
     }      }
   
     if (--cp->c_ocount == 0)      if (--cp->c_ocount == 0)
Line 1104  coda_inactive(v)
Line 872  coda_inactive(v)
   
     if (IS_UNMOUNTING(cp)) {      if (IS_UNMOUNTING(cp)) {
 #ifdef  DEBUG  #ifdef  DEBUG
         printf("coda_inactive: IS_UNMOUNTING use %d: vp %p, cp %p\n", vp->v_usecount, vp, cp);          printf("coda_inactive: IS_UNMOUNTING use %ld: vp %p, cp %p\n", vp->v_usecount, vp, cp);
         if (cp->c_ovp != NULL)          if (cp->c_ovp != NULL)
             printf("coda_inactive: cp->ovp != NULL use %d: vp %p, cp %p\n",              printf("coda_inactive: cp->ovp != NULL use %ld: vp %p, cp %p\n",
                    vp->v_usecount, vp, cp);                     vp->v_usecount, vp, cp);
 #endif  #endif
         lockmgr(&vp->v_lock, LK_RELEASE, &vp->v_interlock);          lockmgr(&vp->v_lock, LK_RELEASE, &vp->v_interlock);
Legend:
Removed from v.1.13  
changed lines
  Added in v.1.13.2.1
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