In article <6gm0s6$e95$1@defiant.cistron.nl>,
Miquel van Smoorenburg <miquels@cistron.nl> wrote:
>The bmap() function in any fs returns zero to indicate a block was not
>present (i.e. map the zero page instead).
>
>I am writing a small filesystem that maps partitions on a disk directly
>to files (so I can let inn-cnfs mmap() partitions directly..). It works
>fine, but I cannot read block 0.
I fixed it by implementing the readpage function in the FS instead of
using generic_readpage, and now it actually works fine. Only problem is
that a standard kernel doesn't export brw_page() in ksyms.c, but I can
live with that..
Now off to implementing mmap() on block devices directly just for fun :)
Mike.
--
Miquel van Smoorenburg | Our vision is to speed up time,
miquels@cistron.nl | eventually eliminating it.
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