Re: [PATCH] include/linux/slab.h: new KFREE() macro.

[Al Viro]

On Mon, Jan 08, 2007 at 12:05:59AM -0800, Amit Choudhary wrote:
 
> Attached is some code from the kernel. Expanded KFREE() has been used atleast 1000 times in the
> kernel. By your logic, everyone is stupid in doing so. Something has been done atleast 1000 times
> in the kernel, that looks okay. But consolidating it at one place does not look okay. I am listing
> some of the 1000 places where KFREE() has been used. All this code have been written by atleast 50
> different people. From your logic they were doing "silly" things.

Very likely.  Some of that is a cargo-cult programming, some is explicit
logics controlling cleanup later on, some is outright racy (== everything
that leaves kfree()'d pointer in shared data structure for a while).
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