[PATCH] powerpc: Explicit alignment for .data.cacheline_aligned
Benjamin Herrenschmidt
benh at kernel.crashing.org
Mon May 18 14:29:03 EST 2009
I don't think anything guarantees that the objects in data.page_aligned
are a multiple of PAGE_SIZE, thus the section may end on any boundary.
So the following section, .data.cacheline_aligned needs an explicit
alignment.
Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
---
arch/powerpc/kernel/vmlinux.lds.S | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- linux-work.orig/arch/powerpc/kernel/vmlinux.lds.S 2009-05-18 14:24:05.000000000 +1000
+++ linux-work/arch/powerpc/kernel/vmlinux.lds.S 2009-05-18 14:24:22.000000000 +1000
@@ -264,7 +264,8 @@ SECTIONS
*(.data.page_aligned)
}
- .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
+ . = ALIGN(L1_CACHE_BYTES);
+ .cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
*(.data.cacheline_aligned)
}
More information about the Linuxppc-dev
mailing list