Commit 094804c5 authored Oct 11, 2005 by Andi Kleen Committed by Linus Torvalds Oct 10, 2005

[PATCH] x86_64: Fix change_page_attr cache flushing



Noticed by Terence Ripperda

Undo wrong change in global_flush_tlb. We need to flush the caches in all
cases, not just when pages were reverted. This was a bogus optimization
added earlier, but it was wrong.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent f96c3bbe

arch/x86_64/mm/pageattr.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -220,8 +220,6 @@ void global_flush_tlb(void)
		down_read(&init_mm.mmap_sem);
		df = xchg(&df_list, NULL);
		up_read(&init_mm.mmap_sem);
		if (!df)
		return;
		flush_map((df && !df->next) ? df->address : 0);
		for (; df; df = next_df) {
		next_df = df->next;