Commit 21c935e5 authored Oct 11, 2006 by Paolo 'Blaisorblade' Giarrusso Committed by Linus Torvalds Oct 11, 2006

[PATCH] uml: correct removal of pte_mkexec



Correct commit 5906e417 - this makes more
sense: we turn pte_mkexec + pte_wrprotect to pte_mkread.  However, due to a
bug in pte_mkread, it does the exact same thing as pte_mkwrite, so this patch
improves the code but does not change anything in practice.  The pte_mkread
bug is fixed separately, as it may have big impact.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 1875a48f

arch/um/kernel/skas/mmu.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -60,10 +60,7 @@ static int init_stub_pte(struct mm_struct *mm, unsigned long proc,
		#endif

		*pte = mk_pte(virt_to_page(kernel), __pgprot(_PAGE_PRESENT));
		/* This is wrong for the code page, but it doesn't matter since the
		* stub is mapped by hand with the correct permissions.
		*/
		pte = pte_mkwrite(pte);
		pte = pte_mkread(pte);
		return(0);

		out_pmd: