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[PATCH] x86_64: Fix change_page_attr cache flushing

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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>
This commit is contained in:
Andi Kleen 2005-10-11 01:03:39 +02:00 committed by Linus Torvalds
parent f96c3bbe91
commit 094804c5a1
1 changed files with 0 additions and 2 deletions
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arch/x86_64/mm/pageattr.c
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@ -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;