Messages in this thread | | | Date | Sun, 20 Jul 2003 12:38:56 +0200 | From | Jörn Engel <> | Subject | Re: [PATCH] Port SquashFS to 2.6 |
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On Sun, 20 July 2003 11:16:18 +0100, postmaster@lougher.demon.co.uk wrote: > joern@wohnheim.fh-wedel.de wrote: > > > > As a rule of thumb, stay below 1k or you will get regular email from > > me. :) > > I tend to allocate (small) buffers on the stack, when their size does not > seem to warrant either: a globally kmalloced buffer and consequent locking, > or a locally kmalloced buffer kfreed on exit from the function, which seems > wasteful. However, if 1K is the perceived wisdom on stack limits, then I will > alter the code.
At least you should think twice before going above. Even with wli's stack reduction work applied, you still have close to 4k for kernel stack. But measuring the stack consumption of all the possible call chains in the kernel is still a hard problem, so you will have a hard time proving that any one bigger stack allocation is fine.
Jörn
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