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CVS log for src/sys/miscfs/fdesc/fdesc_vnops.c

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Default branch: MAIN
Current tag: thorpej-devvp


Revision 1.64.4.2 / (download) - annotate - [select for diffs], Tue Sep 18 19:13:55 2001 UTC (20 years, 8 months ago) by fvdl
Branch: thorpej-devvp
Changes since 1.64.4.1: +3 -2 lines
Diff to previous 1.64.4.1 (colored) to branchpoint 1.64 (colored) next main 1.65 (colored)

Various changes to make cloning devices possible:

	* Add an extra argument (struct vnode **) to VOP_OPEN. If it is
	  not NULL, specfs will create a cloned (aliased) vnode during
	  the call, and return it there. The caller should release and
	  unlock the original vnode if a new vnode was returned. The
	  new vnode is returned locked.

	* Add a flag field to the cdevsw and bdevsw structures.
	  DF_CLONING indicates that it wants a new vnode for each
	  open (XXX is there a better way? devprop?)

	* If a device is cloning, always call the close entry
	  point for a VOP_CLOSE.


Also, rewrite cons.c to do the right thing with vnodes. Use VOPs
rather then direct device entry calls. Suggested by mycroft@

Light to moderate testing done an i386 system (arch doesn't matter
though, these are MI changes).

Revision 1.64.4.1 / (download) - annotate - [select for diffs], Fri Sep 7 04:45:39 2001 UTC (20 years, 8 months ago) by thorpej
Branch: thorpej-devvp
Changes since 1.64: +26 -6 lines
Diff to previous 1.64 (colored)

Commit my "devvp" changes to the thorpej-devvp branch.  This
replaces the use of dev_t in most places with a struct vnode *.

This will form the basic infrastructure for real cloning device
support (besides being architecurally cleaner -- it'll be good
to get away from using numbers to represent objects).

Revision 1.64 / (download) - annotate - [select for diffs], Sat Jun 16 08:28:39 2001 UTC (20 years, 11 months ago) by jdolecek
Branch: MAIN
CVS Tags: thorpej-devvp-base3, thorpej-devvp-base2, thorpej-devvp-base, pre-chs-ubcperf, post-chs-ubcperf
Branch point for: thorpej-mips-cache, thorpej-devvp, kqueue
Changes since 1.63: +6 -2 lines
Diff to previous 1.63 (colored)

Add DTYPE_PIPE (to be used by new pipe implementation) and handle
it accordingly.

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