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Diff for /src/sys/vfs/procfs/procfs_vnops.c between versions 1.12 and 1.13

version 1.12, 2004/04/24 04:32:05 version 1.13, 2004/05/02 03:05:11
Line 123  static pid_t atopid (const char *, u_int Line 123  static pid_t atopid (const char *, u_int
  * in particular for i/o.  all that is done   * in particular for i/o.  all that is done
  * is to support exclusive open on process   * is to support exclusive open on process
  * memory images.   * memory images.
    *
    * procfs_open(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
    *              struct thread *a_td)
  */   */
 static int  static int
 procfs_open(ap)  procfs_open(struct vop_open_args *ap)
         struct vop_open_args /* {  
                 struct vnode *a_vp;  
                 int  a_mode;  
                 struct ucred *a_cred;  
                 struct thread *a_td;  
         } */ *ap;  
 {  {
         struct pfsnode *pfs = VTOPFS(ap->a_vp);          struct pfsnode *pfs = VTOPFS(ap->a_vp);
         struct proc *p1, *p2;          struct proc *p1, *p2;
Line 174  procfs_open(ap) Line 171  procfs_open(ap)
  *   *
  * nothing to do for procfs other than undo   * nothing to do for procfs other than undo
  * any exclusive open flag (see _open above).   * any exclusive open flag (see _open above).
    *
    * procfs_close(struct vnode *a_vp, int a_fflag, struct ucred *a_cred,
    *              struct thread *a_td)
  */   */
 static int  static int
 procfs_close(ap)  procfs_close(struct vop_close_args *ap)
         struct vop_close_args /* {  
                 struct vnode *a_vp;  
                 int  a_fflag;  
                 struct ucred *a_cred;  
                 struct thread *a_td;  
         } */ *ap;  
 {  {
         struct pfsnode *pfs = VTOPFS(ap->a_vp);          struct pfsnode *pfs = VTOPFS(ap->a_vp);
         struct proc *p;          struct proc *p;
Line 228  procfs_close(ap) Line 222  procfs_close(ap)
  * (vp) is not locked on entry or exit.   * (vp) is not locked on entry or exit.
  */   */
 static int  static int
 procfs_ioctl(ap)  procfs_ioctl(struct vop_ioctl_args *ap)
         struct vop_ioctl_args *ap;  
 {  {
         struct pfsnode *pfs = VTOPFS(ap->a_vp);          struct pfsnode *pfs = VTOPFS(ap->a_vp);
         struct proc *procp;          struct proc *procp;
Line 324  procfs_ioctl(ap) Line 317  procfs_ioctl(ap)
  * of this function.  for sanity, this is the   * of this function.  for sanity, this is the
  * usual no-op bmap, although returning   * usual no-op bmap, although returning
  * (EIO) would be a reasonable alternative.   * (EIO) would be a reasonable alternative.
    *
    * procfs_bmap(struct vnode *a_vp, daddr_t a_bn, struct vnode **a_vpp,
    *              daddr_t *a_bnp, int *a_runp)
  */   */
 static int  static int
 procfs_bmap(ap)  procfs_bmap(struct vop_bmap_args *ap)
         struct vop_bmap_args /* {  
                 struct vnode *a_vp;  
                 daddr_t  a_bn;  
                 struct vnode **a_vpp;  
                 daddr_t *a_bnp;  
                 int *a_runp;  
         } */ *ap;  
 {  {
   
         if (ap->a_vpp != NULL)          if (ap->a_vpp != NULL)
                 *ap->a_vpp = ap->a_vp;                  *ap->a_vpp = ap->a_vp;
         if (ap->a_bnp != NULL)          if (ap->a_bnp != NULL)
Line 353  procfs_bmap(ap) Line 341  procfs_bmap(ap)
  * used.   * used.
  *   *
  * (vp) is locked on entry, but must be unlocked on exit.   * (vp) is locked on entry, but must be unlocked on exit.
    *
    * procfs_inactive(struct vnode *a_vp, struct thread *a_td)
  */   */
 static int  static int
 procfs_inactive(ap)  procfs_inactive(struct vop_inactive_args *ap)
         struct vop_inactive_args /* {  
                 struct vnode *a_vp;  
                 struct thread *a_td;  
         } */ *ap;  
 {  {
         struct vnode *vp = ap->a_vp;          struct vnode *vp = ap->a_vp;
   
Line 374  procfs_inactive(ap) Line 360  procfs_inactive(ap)
  * free list.  at this time the filesystem needs   * free list.  at this time the filesystem needs
  * to free any private data and remove the node   * to free any private data and remove the node
  * from any private lists.   * from any private lists.
    *
    * procfs_reclaim(struct vnode *a_vp)
  */   */
 static int  static int
 procfs_reclaim(ap)  procfs_reclaim(struct vop_reclaim_args *ap)
         struct vop_reclaim_args /* {  
                 struct vnode *a_vp;  
         } */ *ap;  
 {  {
   
         return (procfs_freevp(ap->a_vp));          return (procfs_freevp(ap->a_vp));
 }  }
   
Line 389  procfs_reclaim(ap) Line 373  procfs_reclaim(ap)
  * _print is used for debugging.   * _print is used for debugging.
  * just print a readable description   * just print a readable description
  * of (vp).   * of (vp).
    *
    * procfs_print(struct vnode *a_vp)
  */   */
 static int  static int
 procfs_print(ap)  procfs_print(struct vop_print_args *ap)
         struct vop_print_args /* {  
                 struct vnode *a_vp;  
         } */ *ap;  
 {  {
         struct pfsnode *pfs = VTOPFS(ap->a_vp);          struct pfsnode *pfs = VTOPFS(ap->a_vp);
   
Line 407  procfs_print(ap) Line 390  procfs_print(ap)
  * generic entry point for unsupported operations   * generic entry point for unsupported operations
  */   */
 static int  static int
 procfs_badop()  procfs_badop(void)
 {  {
   
         return (EIO);          return (EIO);
 }  }
   
Line 421  procfs_badop() Line 403  procfs_badop()
  * to be computed, and nothing cares anyway.   * to be computed, and nothing cares anyway.
  *   *
  * this is relatively minimal for procfs.   * this is relatively minimal for procfs.
    *
    * procfs_getattr(struct vnode *a_vp, struct vattr *a_vap,
    *                struct ucred *a_cred, struct thread *a_td)
  */   */
 static int  static int
 procfs_getattr(ap)  procfs_getattr(struct vop_getattr_args *ap)
         struct vop_getattr_args /* {  
                 struct vnode *a_vp;  
                 struct vattr *a_vap;  
                 struct ucred *a_cred;  
                 struct thread *a_td;  
         } */ *ap;  
 {  {
         struct pfsnode *pfs = VTOPFS(ap->a_vp);          struct pfsnode *pfs = VTOPFS(ap->a_vp);
         struct vattr *vap = ap->a_vap;          struct vattr *vap = ap->a_vap;
Line 593  procfs_getattr(ap) Line 572  procfs_getattr(ap)
         return (error);          return (error);
 }  }
   
   /*
    * procfs_setattr(struct vnode *a_vp, struct vattr *a_vap,
    *                struct ucred *a_cred, struct thread *a_td)
    */
 static int  static int
 procfs_setattr(ap)  procfs_setattr(struct vop_setattr_args *ap)
         struct vop_setattr_args /* {  
                 struct vnode *a_vp;  
                 struct vattr *a_vap;  
                 struct ucred *a_cred;  
                 struct thread *a_td;  
         } */ *ap;  
 {  {
   
         if (ap->a_vap->va_flags != VNOVAL)          if (ap->a_vap->va_flags != VNOVAL)
                 return (EOPNOTSUPP);                  return (EOPNOTSUPP);
   
Line 630  procfs_setattr(ap) Line 606  procfs_setattr(ap)
  * objects.  this doesn't cause any particular trouble   * objects.  this doesn't cause any particular trouble
  * but does mean that the i/o entry points need to check   * but does mean that the i/o entry points need to check
  * that the operation really does make sense.   * that the operation really does make sense.
    *
    * procfs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
    *               struct thread *a_td)
  */   */
 static int  static int
 procfs_access(ap)  procfs_access(struct vop_access_args *ap)
         struct vop_access_args /* {  
                 struct vnode *a_vp;  
                 int a_mode;  
                 struct ucred *a_cred;  
                 struct thread *a_td;  
         } */ *ap;  
 {  {
         struct vattr *vap;          struct vattr *vap;
         struct vattr vattr;          struct vattr vattr;
Line 689  found: Line 662  found:
  * unless you want to get a migraine, just make sure your   * unless you want to get a migraine, just make sure your
  * filesystem doesn't do any locking of its own.  otherwise   * filesystem doesn't do any locking of its own.  otherwise
  * read and inwardly digest ufs_lookup().   * read and inwardly digest ufs_lookup().
    *
    * procfs_lookup(struct vnode *a_dvp, struct vnode **a_vpp,
    *               struct componentname *a_cnp)
  */   */
 static int  static int
 procfs_lookup(ap)  procfs_lookup(struct vop_lookup_args *ap)
         struct vop_lookup_args /* {  
                 struct vnode * a_dvp;  
                 struct vnode ** a_vpp;  
                 struct componentname * a_cnp;  
         } */ *ap;  
 {  {
         struct componentname *cnp = ap->a_cnp;          struct componentname *cnp = ap->a_cnp;
         struct vnode **vpp = ap->a_vpp;          struct vnode **vpp = ap->a_vpp;
Line 778  procfs_lookup(ap) Line 749  procfs_lookup(ap)
  * Does this process have a text file?   * Does this process have a text file?
  */   */
 int  int
 procfs_validfile(p)  procfs_validfile(struct proc *p)
         struct proc *p;  
 {  {
   
         return (procfs_findtextvp(p) != NULLVP);          return (procfs_findtextvp(p) != NULLVP);
 }  }
   
Line 790  procfs_validfile(p) Line 759  procfs_validfile(p)
  *   *
  * We generate just one directory entry at a time, as it would probably   * We generate just one directory entry at a time, as it would probably
  * not pay off to buffer several entries locally to save uiomove calls.   * not pay off to buffer several entries locally to save uiomove calls.
    *
    * procfs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
    *                int *a_eofflag, int *a_ncookies, u_long **a_cookies)
  */   */
 static int  static int
 procfs_readdir(ap)  procfs_readdir(struct vop_readdir_args *ap)
         struct vop_readdir_args /* {  
                 struct vnode *a_vp;  
                 struct uio *a_uio;  
                 struct ucred *a_cred;  
                 int *a_eofflag;  
                 int *a_ncookies;  
                 u_long **a_cookies;  
         } */ *ap;  
 {  {
         struct uio *uio = ap->a_uio;          struct uio *uio = ap->a_uio;
         struct dirent d;          struct dirent d;
Line 960  procfs_readdir(ap) Line 924  procfs_readdir(ap)
  * readlink reads the link of `curproc' or `file'   * readlink reads the link of `curproc' or `file'
  */   */
 static int  static int
 procfs_readlink(ap)  procfs_readlink(struct vop_readlink_args *ap)
         struct vop_readlink_args *ap;  
 {  {
         char buf[16];           /* should be enough */          char buf[16];           /* should be enough */
         struct proc *procp;          struct proc *procp;
Line 1006  procfs_readlink(ap) Line 969  procfs_readlink(ap)
  * convert decimal ascii to pid_t   * convert decimal ascii to pid_t
  */   */
 static pid_t  static pid_t
 atopid(b, len)  atopid(const char *b, u_int len)
         const char *b;  
         u_int len;  
 {  {
         pid_t p = 0;          pid_t p = 0;
   
Removed from v.1.12  
changed lines
  Added in v.1.13