Messages in this thread Patch in this message | | | From | Rabin Vincent <> | Subject | [PATCH 6/9] uprobes: flush cache after xol write | Date | Sun, 14 Oct 2012 21:23:10 +0200 |
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Flush the cache so that the instructions written to the XOL area are visible.
Signed-off-by: Rabin Vincent <rabin@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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