Re: [patch-2.3.29] bugfix for pipe(2) system call.

Brandon S. Allbery KF8NH (allbery@kf8nh.apk.net)
Thu, 25 Nov 1999 08:20:38 -0500

In message <Pine.SCO.3.94.991125130218.1686B-100000@tyne.london.sco.com>,
Tigra
n Aivazian writes:
+-----
| If David suggested to write -1's to userspace's fd[2] that means overhead
| in non-failing case which is totally unacceptable. (it's the same as doing
+--->8

Compared to odd race conditions or file descriptor leaks?

| verify_area(), in fact it is cheaper to keep the kernel lock over
| copy_to_user() and close the descriptors if failed than doing that).
+--->8

Then perhaps that should be done. I'm not real happy with the other
alternatives.

-- 
brandon s. allbery	   os/2,linux,solaris,perl	allbery@kf8nh.apk.net
system administrator	   kthkrb,heimdal,gnome,rt	  allbery@ece.cmu.edu
carnegie mellon / electrical and computer engineering			kf8nh
    We are Linux. Resistance is an indication that you missed the point.






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