Re: 1GB/2GB/3GB User Space Splitting Patch 2.6.8.1 (PSEUDO SPAM)

[Roland Dreier]

    jmerkey> That incredibly useful patch for 2.4.X that Andrea wrote
    jmerkey> that splits the kernel user space into 1GB/2GB/3GB
    jmerkey> sections I ported to 2.6.8.1 and posted it to:

    jmerkey> ftp.kernel.org:/pub/linux/kernel/people/jmerkey/patches/linux-2.6.8.1-highmem-split-08-25-04.patch

This is indeed pretty useful.  A few comments on your version of the patch:

 - might as well post a patch this small inline
 - In Kconfig, what happens if someone turns on highmem?  It seems all
   the USER_XXX choices depend on NOHIGHMEM.  also, the config option
   probably needs at least some help text.
 - the change to vmlinux.ld.S can be dropped from future versions
   (Linus merged this post-2.6.8)
 - why create PAGE_OFFSET_RAW in asm-generic, when it depends on
   i386-only config symbols and is only used in i386?
 - what's the reason for the odd rewrite of free_one_pgd()? it looks
   equivalent (and misindented)

Thanks,
  Roland
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