nlookup-mkdir.patch

c.turner, 03/29/2010 02:42 am

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b/sys/kern/vfs_nlookup.c
469 469 
	    nd->nl_nch = nch;		/* remains locked */
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	    /*

  		





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	     * Fast-track termination.  There is no parent directory of

  		





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	     * the root in the same mount from the point of view of

  		





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	     * the caller so return EPERM if NLC_REFDVP is specified.

  		





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	     * e.g. 'rmdir /' is not allowed.

  		





  
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	     * Fast-track termination. In the case of '/', there is no 

  		





  
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	     * parent directory from the point of view of the caller 

  		





  
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	     * so return either EPERM if NLC_REFDVP is specified.

  		





  
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	     * e.g. 'rmdir /' is not allowed, or return EEXIST

  		





  
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	     * for the case of 'mkdir /'.

  		





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	     */

  		





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	    if (*ptr == 0) {

  		





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		if (nd->nl_flags & NLC_REFDVP)

  		





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			error = EPERM;

  		





  
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			error = (nd->nl_flags & NLC_CREATE) ? EEXIST : EPERM;

  		





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		else

  		





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			error = 0;

  		





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		break;