Commit f76348a3 authored Dec 24, 2009 by Russell King

ARM: remove unnecessary cache flush



This cache flush occurs when we first insert a page into the page
tables, where a page did not exist previously.  There can be no
cache lines associated with this virtual mapping, so this cache
flush is redundant.

Tested-by: Mike Rapoport <mike@compulab.co.il>
Tested-by: Mikael Pettersson <mikpe at it.uu.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent 6e8699f7

arch/arm/mm/fault-armv.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -133,8 +133,6 @@ make_coherent(struct address_space mapping, struct vm_area_struct vma,
		flush_dcache_mmap_unlock(mapping);
		if (aliases)
		do_adjust_pte(vma, addr, pfn, ptep);
		else
		flush_cache_page(vma, addr, pfn);
		}

		/*

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