Re: [PATCH 2/25] NTFS: Allow highmem kmalloc() in ntfs_malloc_nofs() and add _nofail() version.

From: Christoph Hellwig
Date: Fri Sep 09 2005 - 09:53:39 EST


On Fri, Sep 09, 2005 at 07:51:23AM -0700, Roland Dreier wrote:
> Anton> fs/ntfs/malloc.h::ntfs_malloc_nofs() to do the kmalloc()
> Anton> based allocations with __GFP_HIGHMEM, analogous to how the
> Anton> vmalloc() based allocations are done.
>
> Does it make sense to pass __GFP_HIGHMEM to kmalloc()?

Not at all (as you indicated below..)

> kmalloc() has
> to return memory from lowmem, since it gives you an address from the
> direct-mapped kernel area, so at best kmalloc() ignores this flag.

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