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Update the comment and remove checks now done centrally.

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This commit is contained in:
Poul-Henning Kamp 1997-09-10 19:47:37 +00:00
parent b84d2921af
commit 375bbf8b88
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=29287
1 changed files with 16 additions and 16 deletions
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32
sys/ufs/ufs/ufs_lookup.c
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@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)ufs_lookup.c 8.15 (Berkeley) 6/16/95
* $Id: ufs_lookup.c,v 1.15 1997/08/26 07:32:51 phk Exp $
* $Id: ufs_lookup.c,v 1.16 1997/09/02 20:06:58 bde Exp $
*/
#include <sys/param.h>
@ -78,11 +78,23 @@ int dirchk = 0;
* be "."., but the caller must check to ensure it does an vrele and vput
* instead of two vputs.
*
* This routine is actually used as VOP_CACHEDLOOKUP method, and the
* filesystem employs the generic vfs_cache_lookup() as VOP_LOOKUP
* method.
*
* vfs_cache_lookup() performs the following for us:
* check that it is a directory
* check accessibility of directory
* check for modification attempts on read-only mounts
* if name found in cache
* if at end of path and deleting or creating
* drop it
* else
* return name.
* return VOP_CACHEDLOOKUP()
*
* Overall outline of ufs_lookup:
*
* check accessibility of directory
* look for name in cache, if found, then if at end of path
* and deleting or creating, drop it, else return name
* search for name in directory, to found or notfound
* notfound:
* if creating, return locked directory, leaving info on available slots
@ -137,18 +149,6 @@ ufs_lookup(ap)
lockparent = flags & LOCKPARENT;
wantparent = flags & (LOCKPARENT|WANTPARENT);
/*
* Check accessiblity of directory.
*/
if ((dp->i_mode & IFMT) != IFDIR)
return (ENOTDIR);
error = VOP_ACCESS(vdp, VEXEC, cred, cnp->cn_proc);
if (error)
return (error);
if ((flags & ISLASTCN) && (vdp->v_mount->mnt_flag & MNT_RDONLY) &&
(cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME))
return (EROFS);
/*
* We now have a segment name to search for, and a directory to search.
*