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SubjectRe: [patch] VM_IO fixes


On Thu, 7 Feb 2002, Roman Zippel wrote:

> Hi,
>
> On Wed, 6 Feb 2002, Andrew Morton wrote:
>
> > Any filesystem which implements its own mmap() method, and which
> > does not call generic_file_mmap() needs to be changed to clear
> > VM_IO inside its mmap function. All in-kernel filesystems are
> > OK, as is XFS. And the only breakage this can cause to out-of-kernel
> > filesystems is failure to include mappings in core files, and
> > inability to use PEEKUSR.
>
> You forgot shared memory via mm/shmem.c and ipc/shm.c.

Andrew, could you please send me an uptodated patch to fix that ?

> Another possibility is to test whether the driver provides a nopage
> function, as i/o areas are usually mapped with io_remap_page_range.

Eek, thats too kludgy. ;)

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