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| author | Andi Kleen <ak@suse.de> | 2005-10-11 01:03:39 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-10 16:10:33 -0700 |
| commit | 094804c5a132f04c12dd4902ee15c64362e5c1af (patch) | |
| tree | 44a146301f43a7ba9db72308585122218ccafe6f | |
| parent | f96c3bbe91117402f13119ce9e609db9087ed58f (diff) | |
| download | op-kernel-dev-094804c5a132f04c12dd4902ee15c64362e5c1af.zip op-kernel-dev-094804c5a132f04c12dd4902ee15c64362e5c1af.tar.gz | |
[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>
| -rw-r--r-- | arch/x86_64/mm/pageattr.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86_64/mm/pageattr.c b/arch/x86_64/mm/pageattr.c index 94862e1..b90e8fe 100644 --- a/arch/x86_64/mm/pageattr.c +++ b/arch/x86_64/mm/pageattr.c @@ -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; |
