[tip:x86/olpc] x86, olpc: Add comment about implicit optimization barrier
From: tip-bot for Andres Salomon
Date: Thu Jun 24 2010 - 05:43:23 EST
Commit-ID: 75a9cac430a1bd2a5219c74508ca01b0ddfddc9a
Gitweb: http://git.kernel.org/tip/75a9cac430a1bd2a5219c74508ca01b0ddfddc9a
Author: Andres Salomon <dilinger@xxxxxxxxxx>
AuthorDate: Wed, 23 Jun 2010 20:27:00 -0400
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Thu, 24 Jun 2010 11:40:47 +0200
x86, olpc: Add comment about implicit optimization barrier
Signed-off-by: Andres Salomon <dilinger@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
LKML-Reference: <20100618174653.7755a39a@xxxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
arch/x86/kernel/olpc_ofw.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kernel/olpc_ofw.c b/arch/x86/kernel/olpc_ofw.c
index 469ee43..f5d499f 100644
--- a/arch/x86/kernel/olpc_ofw.c
+++ b/arch/x86/kernel/olpc_ofw.c
@@ -35,6 +35,8 @@ void __init setup_olpc_ofw_pgd(void)
/* install OFW's PDE permanently into the kernel's pgtable */
set_pgd(&swapper_pg_dir[OLPC_OFW_PDE_NR], *ofw_pde);
+ /* implicit optimization barrier here due to uninline function return */
+
early_iounmap(base, sizeof(olpc_ofw_pgd) * PTRS_PER_PGD);
}
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/