On Mon, Jul 06, 2020 at 08:26:17AM +0530, Anshuman Khandual wrote: > There are many instances where vmemap allocation is often switched between > regular memory and device memory just based on whether altmap is available > or not. vmemmap_alloc_block_buf() is used in various platforms to allocate > vmemmap mappings. Lets also enable it to handle altmap based device memory > allocation along with existing regular memory allocations. This will help > in avoiding the altmap based allocation switch in many places. To summarize > there are two different methods to call vmemmap_alloc_block_buf(). > > vmemmap_alloc_block_buf(size, node, NULL) /* Allocate from system RAM */ > vmemmap_alloc_block_buf(size, node, altmap) /* Allocate from altmap */ > > This converts altmap_alloc_block_buf() into a static function, drops it's
s/it's/its/ > entry from the header and updates Documentation/vm/memory-model.rst. > > Cc: Jonathan Corbet <cor...@lwn.net> > Cc: Catalin Marinas <catalin.mari...@arm.com> > Cc: Will Deacon <w...@kernel.org> > Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> > Cc: Paul Mackerras <pau...@samba.org> > Cc: Michael Ellerman <m...@ellerman.id.au> > Cc: Dave Hansen <dave.han...@linux.intel.com> > Cc: Andy Lutomirski <l...@kernel.org> > Cc: Peter Zijlstra <pet...@infradead.org> > Cc: Thomas Gleixner <t...@linutronix.de> > Cc: Ingo Molnar <mi...@redhat.com> > Cc: Borislav Petkov <b...@alien8.de> > Cc: "H. Peter Anvin" <h...@zytor.com> > Cc: Andrew Morton <a...@linux-foundation.org> > Cc: linux-...@vger.kernel.org > Cc: x...@kernel.org > Cc: linux-arm-ker...@lists.infradead.org > Cc: linuxppc-dev@lists.ozlabs.org > Cc: linux...@kvack.org > Cc: linux-ker...@vger.kernel.org > Tested-by: Jia He <justin...@arm.com> > Suggested-by: Robin Murphy <robin.mur...@arm.com> > Signed-off-by: Anshuman Khandual <anshuman.khand...@arm.com> With the fallback argument dropped, the patch looks fine to me. Reviewed-by: Catalin Marinas <catalin.mari...@arm.com>
