Messages in this thread | | | Date | Fri, 31 May 2002 21:49:30 +0200 | Subject | Re: do_mmap | From | DervishD <> |
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Hello Alan & Thomas :)
>> is it possible to have 0 as a valid address? - if not, this should >> be the return on errors. >SuS explicitly says that 0 is not a valid mmap return address.
Not in my copy of the SuS, version 2, but yes in my man page about mmap(). Anyway, Linus told me that he doesn't like to change the semantics for mmap, so it can return 0.
I don't like mmap() returning 0, but I don't like too breaking the old behaviour of the kernel. Moreover, 0 is returned only if the length requested is 0 and the address passed as hint is 0 too... I don't see any problem about it.
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