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From:
Sebastien Marie <semarie@kapouay.eu.org>
Subject:
Re: shrink vop_print on install media
To:
Miod Vallat <miod@online.fr>, tech@openbsd.org
Date:
Tue, 21 May 2024 16:51:22 +0200

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Miod Vallat <miod@online.fr> writes:

> The vop_print method is seldom used and barely useful on installation
> media. The following diff shunts most of it unless actual vop_print
> support is required, via the DEBUG, DIAGNOSTIC and VFSLCKDEBUG kernel
> options.

ok semarie@

> Index: sys/isofs/cd9660/cd9660_vnops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/isofs/cd9660/cd9660_vnops.c,v
> retrieving revision 1.95
> diff -u -p -u -p -r1.95 cd9660_vnops.c
> --- sys/isofs/cd9660/cd9660_vnops.c	8 Sep 2023 20:00:28 -0000	1.95
> +++ sys/isofs/cd9660/cd9660_vnops.c	17 May 2024 13:19:33 -0000
> @@ -738,7 +738,9 @@ cd9660_strategy(void *v)
>  int
>  cd9660_print(void *v)
>  {
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	printf("tag VT_ISOFS, isofs vnode\n");
> +#endif
>  	return (0);
>  }
>  
> Index: sys/isofs/udf/udf_vnops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/isofs/udf/udf_vnops.c,v
> retrieving revision 1.72
> diff -u -p -u -p -r1.72 udf_vnops.c
> --- sys/isofs/udf/udf_vnops.c	13 May 2024 11:17:40 -0000	1.72
> +++ sys/isofs/udf/udf_vnops.c	17 May 2024 13:19:33 -0000
> @@ -938,6 +938,7 @@ udf_islocked(void *v)
>  int
>  udf_print(void *v)
>  {
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	struct vop_print_args *ap = v;
>  	struct vnode *vp = ap->a_vp;
>  	struct unode *up = VTOU(vp);
> @@ -948,6 +949,7 @@ udf_print(void *v)
>  	printf("tag VT_UDF, hash id %u\n", up->u_ino);
>  #ifdef DIAGNOSTIC
>  	printf("\n");
> +#endif
>  #endif
>  	return (0);
>  }
> Index: sys/kern/spec_vnops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/kern/spec_vnops.c,v
> retrieving revision 1.112
> diff -u -p -u -p -r1.112 spec_vnops.c
> --- sys/kern/spec_vnops.c	3 Feb 2024 18:51:58 -0000	1.112
> +++ sys/kern/spec_vnops.c	17 May 2024 13:19:33 -0000
> @@ -608,10 +608,12 @@ spec_access(void *v)
>  int
>  spec_print(void *v)
>  {
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	struct vop_print_args *ap = v;
>  
>  	printf("tag VT_NON, dev %d, %d\n", major(ap->a_vp->v_rdev),
>  		minor(ap->a_vp->v_rdev));
> +#endif
>  	return 0;
>  }
>  
> Index: sys/kern/vfs_subr.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/kern/vfs_subr.c,v
> retrieving revision 1.319
> diff -u -p -u -p -r1.319 vfs_subr.c
> --- sys/kern/vfs_subr.c	3 Feb 2024 18:51:58 -0000	1.319
> +++ sys/kern/vfs_subr.c	17 May 2024 13:19:33 -0000
> @@ -982,7 +982,7 @@ vflush_vnode(struct vnode *vp, void *arg
>  	if (empty)
>  		return (0);
>  
> -#ifdef DEBUG_SYSCTL
> +#if defined(DEBUG_SYSCTL) && (defined(DEBUG) || defined(DIAGNOSTIC))
>  	if (busyprt)
>  		vprint("vflush: busy vnode", vp);
>  #endif
> Index: sys/kern/vfs_sync.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/kern/vfs_sync.c,v
> retrieving revision 1.72
> diff -u -p -u -p -r1.72 vfs_sync.c
> --- sys/kern/vfs_sync.c	13 May 2024 11:17:40 -0000	1.72
> +++ sys/kern/vfs_sync.c	17 May 2024 13:19:33 -0000
> @@ -363,7 +363,9 @@ sync_inactive(void *v)
>  int
>  sync_print(void *v)
>  {
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	printf("syncer vnode\n");
> +#endif
>  
>  	return (0);
>  }
> Index: sys/kern/vfs_vops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/kern/vfs_vops.c,v
> retrieving revision 1.36
> diff -u -p -u -p -r1.36 vfs_vops.c
> --- sys/kern/vfs_vops.c	13 May 2024 11:17:40 -0000	1.36
> +++ sys/kern/vfs_vops.c	17 May 2024 13:19:33 -0000
> @@ -555,6 +555,7 @@ VOP_BMAP(struct vnode *vp, daddr_t bn, s
>  	return ((vp->v_op->vop_bmap)(&a));
>  }
>  
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  int
>  VOP_PRINT(struct vnode *vp)
>  {
> @@ -566,6 +567,7 @@ VOP_PRINT(struct vnode *vp)
>  
>  	return ((vp->v_op->vop_print)(&a));
>  }
> +#endif
>  
>  int
>  VOP_PATHCONF(struct vnode *vp, int name, register_t *retval)
> Index: sys/miscfs/deadfs/dead_vnops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/miscfs/deadfs/dead_vnops.c,v
> retrieving revision 1.42
> diff -u -p -u -p -r1.42 dead_vnops.c
> --- sys/miscfs/deadfs/dead_vnops.c	8 Mar 2023 04:43:08 -0000	1.42
> +++ sys/miscfs/deadfs/dead_vnops.c	17 May 2024 13:19:33 -0000
> @@ -233,7 +233,9 @@ dead_bmap(void *v)
>  int
>  dead_print(void *v)
>  {
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	printf("tag VT_NON, dead vnode\n");
> +#endif
>  	return 0;
>  }
>  
> Index: sys/miscfs/fifofs/fifo_vnops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/miscfs/fifofs/fifo_vnops.c,v
> retrieving revision 1.105
> diff -u -p -u -p -r1.105 fifo_vnops.c
> --- sys/miscfs/fifofs/fifo_vnops.c	3 May 2024 17:43:09 -0000	1.105
> +++ sys/miscfs/fifofs/fifo_vnops.c	17 May 2024 13:19:33 -0000
> @@ -389,14 +389,17 @@ fifo_reclaim(void *v)
>  int
>  fifo_print(void *v)
>  {
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	struct vop_print_args *ap = v;
>  
>  	printf("tag VT_NON");
>  	fifo_printinfo(ap->a_vp);
>  	printf("\n");
> +#endif
>  	return 0;
>  }
>  
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  /*
>   * Print out internal contents of a fifo vnode.
>   */
> @@ -408,6 +411,7 @@ fifo_printinfo(struct vnode *vp)
>  	printf(", fifo with %ld readers and %ld writers",
>  		fip->fi_readers, fip->fi_writers);
>  }
> +#endif
>  
>  /*
>   * Return POSIX pathconf information applicable to fifo's.
> Index: sys/miscfs/fuse/fuse_vnops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/miscfs/fuse/fuse_vnops.c,v
> retrieving revision 1.69
> diff -u -p -u -p -r1.69 fuse_vnops.c
> --- sys/miscfs/fuse/fuse_vnops.c	13 May 2024 11:17:40 -0000	1.69
> +++ sys/miscfs/fuse/fuse_vnops.c	17 May 2024 13:19:33 -0000
> @@ -959,6 +959,7 @@ fusefs_reclaim(void *v)
>  int
>  fusefs_print(void *v)
>  {
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	struct vop_print_args *ap = v;
>  	struct vnode *vp = ap->a_vp;
>  	struct fusefs_node *ip = VTOI(vp);
> @@ -966,6 +967,7 @@ fusefs_print(void *v)
>  	/* Complete the information given by vprint(). */
>  	printf("tag VT_FUSE, hash id %u ", ip->ufs_ino.i_number);
>  	printf("\n");
> +#endif
>  	return (0);
>  }
>  
> Index: sys/msdosfs/msdosfs_vfsops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/msdosfs/msdosfs_vfsops.c,v
> retrieving revision 1.97
> diff -u -p -u -p -r1.97 msdosfs_vfsops.c
> --- sys/msdosfs/msdosfs_vfsops.c	17 Jul 2023 09:41:20 -0000	1.97
> +++ sys/msdosfs/msdosfs_vfsops.c	17 May 2024 13:19:33 -0000
> @@ -577,7 +577,7 @@ msdosfs_unmount(struct mount *mp, int mn
>  	pmp = VFSTOMSDOSFS(mp);
>  	pmp->pm_devvp->v_specmountpoint = NULL;
>  	vp = pmp->pm_devvp;
> -#ifdef MSDOSFS_DEBUG
> +#if defined(MSDOSFS_DEBUG) && (defined(DEBUG) || defined(DIAGNOSTIC))
>  	vprint("msdosfs_umount(): just before calling VOP_CLOSE()\n", vp);
>  #endif
>  	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
> Index: sys/msdosfs/msdosfs_vnops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/msdosfs/msdosfs_vnops.c,v
> retrieving revision 1.141
> diff -u -p -u -p -r1.141 msdosfs_vnops.c
> --- sys/msdosfs/msdosfs_vnops.c	13 May 2024 11:17:40 -0000	1.141
> +++ sys/msdosfs/msdosfs_vnops.c	17 May 2024 13:19:33 -0000
> @@ -1802,6 +1802,7 @@ msdosfs_strategy(void *v)
>  int
>  msdosfs_print(void *v)
>  {
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	struct vop_print_args *ap = v;
>  	struct denode *dep = VTODE(ap->a_vp);
>  
> @@ -1813,6 +1814,7 @@ msdosfs_print(void *v)
>  	    VOP_ISLOCKED(ap->a_vp) ? "(LOCKED)" : "");
>  #ifdef DIAGNOSTIC
>  	printf("\n");
> +#endif
>  #endif
>  
>  	return (0);
> Index: sys/nfs/nfs_vnops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/nfs/nfs_vnops.c,v
> retrieving revision 1.200
> diff -u -p -u -p -r1.200 nfs_vnops.c
> --- sys/nfs/nfs_vnops.c	14 May 2024 06:26:05 -0000	1.200
> +++ sys/nfs/nfs_vnops.c	17 May 2024 13:19:33 -0000
> @@ -3296,6 +3296,7 @@ nfs_advlock(void *v)
>  int
>  nfs_print(void *v)
>  {
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	struct vop_print_args *ap = v;
>  	struct vnode *vp = ap->a_vp;
>  	struct nfsnode *np = VTONFS(vp);
> @@ -3307,6 +3308,7 @@ nfs_print(void *v)
>  		fifo_printinfo(vp);
>  #endif
>  	printf("\n");
> +#endif
>  	return (0);
>  }
>  
> Index: sys/ntfs/ntfs_vnops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/ntfs/ntfs_vnops.c,v
> retrieving revision 1.49
> diff -u -p -u -p -r1.49 ntfs_vnops.c
> --- sys/ntfs/ntfs_vnops.c	13 May 2024 11:17:40 -0000	1.49
> +++ sys/ntfs/ntfs_vnops.c	17 May 2024 13:19:33 -0000
> @@ -234,11 +234,13 @@ ntfs_reclaim(void *v)
>  int
>  ntfs_print(void *v)
>  {
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	struct vop_print_args *ap = v;
>  	struct ntnode *ip = VTONT(ap->a_vp);
>  
>  	printf("tag VT_NTFS, ino %u, flag %#x, usecount %d, nlink %ld\n",
>  	    ip->i_number, ip->i_flag, ip->i_usecount, ip->i_nlink);
> +#endif
>  
>  	return (0);
>  }
> Index: sys/tmpfs/tmpfs_vnops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/tmpfs/tmpfs_vnops.c,v
> retrieving revision 1.55
> diff -u -p -u -p -r1.55 tmpfs_vnops.c
> --- sys/tmpfs/tmpfs_vnops.c	13 May 2024 11:17:41 -0000	1.55
> +++ sys/tmpfs/tmpfs_vnops.c	17 May 2024 13:19:33 -0000
> @@ -1126,6 +1126,7 @@ tmpfs_advlock(void *v)
>  int
>  tmpfs_print(void *v)
>  {
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	struct vop_print_args /* {
>  		struct vnode	*a_vp;
>  	} */ *ap = v;
> @@ -1141,6 +1142,7 @@ tmpfs_print(void *v)
>  		fifo_printinfo(vp);
>  #endif
>  	printf("\n");
> +#endif
>  	return 0;
>  }
>  
> Index: sys/ufs/mfs/mfs_vnops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/ufs/mfs/mfs_vnops.c,v
> retrieving revision 1.61
> diff -u -p -u -p -r1.61 mfs_vnops.c
> --- sys/ufs/mfs/mfs_vnops.c	16 Apr 2024 10:04:41 -0000	1.61
> +++ sys/ufs/mfs/mfs_vnops.c	17 May 2024 13:19:33 -0000
> @@ -252,10 +252,12 @@ mfs_reclaim(void *v)
>  int
>  mfs_print(void *v)
>  {
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	struct vop_print_args *ap = v;
>  	struct mfsnode *mfsp = VTOMFS(ap->a_vp);
>  
>  	printf("tag VT_MFS, tid %d, base %p, size %ld\n", mfsp->mfs_tid,
>  	    mfsp->mfs_baseoff, mfsp->mfs_size);
> +#endif
>  	return (0);
>  }
> Index: sys/ufs/ufs/ufs_vnops.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/ufs/ufs/ufs_vnops.c,v
> retrieving revision 1.162
> diff -u -p -u -p -r1.162 ufs_vnops.c
> --- sys/ufs/ufs/ufs_vnops.c	13 May 2024 11:17:41 -0000	1.162
> +++ sys/ufs/ufs/ufs_vnops.c	17 May 2024 13:19:33 -0000
> @@ -1516,7 +1516,7 @@ ufs_strategy(void *v)
>  int
>  ufs_print(void *v)
>  {
> -#ifdef DIAGNOSTIC
> +#if defined(DEBUG) || defined(DIAGNOSTIC) || defined(VFSLCKDEBUG)
>  	struct vop_print_args *ap = v;
>  
>  	struct vnode *vp = ap->a_vp;
> @@ -1534,8 +1534,7 @@ ufs_print(void *v)
>  		fifo_printinfo(vp);
>  #endif /* FIFO */
>  	printf("\n");
> -
> -#endif /* DIAGNOSTIC */
> +#endif
>  
>  	return (0);
>  }
>

-- 
Sebastien Marie