Messages in this thread | | | Date | Mon, 5 Jul 1999 14:36:45 +0200 | From | Martin Mares <> | Subject | request_region: dynamic allocation |
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Hello Linus,
I'd like to drop the static array from kernel/resource.c (the number of regions in systems with lots of PCI boards can grow pretty high) and replace it by dynamic allocation of resource buckets. However, request_region() can be called before the MM gets initialized (for example in arch/i386/kernel/setup.c or in console init). I'd like to know your opinion on what path should we choose:
- "head in the sand" strategy -- just ignore the problem and if it bites us, increase the array size.
- Try moving all resource mgmt calls after MM init.
- Create a trivial memory allocator (free-less) for allocations before MM gets inited. This would also save passing of memory_start to many functions and make parsing of command-line options easier (for now the drivers need to have their own static arrays for options).
- Use few static resource buckets before MM gets inited and allocate the rest dynamically.
Have a nice fortnight -- Martin `MJ' Mares <mj@ucw.cz> http://atrey.karlin.mff.cuni.cz/~mj/ Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth "A. G. Bell is alive and well in New York and still waiting for the dial tone."
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