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commit ded813a44263103a28e1788489ec0fef7e8d1c7e
Author: Samuel Thibault <samuel.thiba...@ens-lyon.org>
Date: Fri May 1 02:25:37 2020 +0200
Add kmem_valloc
Functions like vremap need to allocate some virtual addressing space
before making their own mapping. kmem_alloc_wired can be used for that
but that wastes memory.
* vm/vm_kern.c (kmem_valloc): New function.
* vm/vm_kern.h (kmem_valloc): New prototype.
* linux/dev/glue/kmem.c (vremap): Call kmem_valloc instead of
kmem_alloc_wired. Also check that `offset' is aligned on a page.
-----------------------------------------------------------------------
Summary of changes:
linux/dev/glue/kmem.c | 4 ++-
vm/vm_kern.c | 76 +++++++++++++++++++++++++++++++++++++++++++++++++++
vm/vm_kern.h | 1 +
3 files changed, 80 insertions(+), 1 deletion(-)
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