[PATCH 6/9] uprobes: flush cache after xol write
Rabin Vincent
rabin at rab.in
Sun Oct 14 15:23:10 EDT 2012
Flush the cache so that the instructions written to the XOL area are
visible.
Signed-off-by: Rabin Vincent <rabin at rab.in>
---
kernel/events/uprobes.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index ca000a9..8c52f93 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1246,6 +1246,7 @@ static unsigned long xol_get_insn_slot(struct uprobe *uprobe, unsigned long slot
offset = current->utask->xol_vaddr & ~PAGE_MASK;
vaddr = kmap_atomic(area->page);
arch_uprobe_xol_copy(&uprobe->arch, vaddr + offset);
+ flush_dcache_page(area->page);
kunmap_atomic(vaddr);
return current->utask->xol_vaddr;
--
1.7.9.5
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