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authorZach Brown <zach.brown@oracle.com>2006-02-03 21:51:35 +0100
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-04 16:43:14 -0800
commit16acc0cd8f1aac63ddf5228c5bc29cf7d31627f4 (patch)
treec1e6ae0b4f666a3e85b12b9280d1bff63104cf9e /arch/x86_64
parenta1002a48e1af5ff8d02bfe79536e6fce3a0ec369 (diff)
[PATCH] x86_64: align per-cpu section to configured cache bytes
Align the start of the per-cpu section to the configured number of bytes in a cache line. This stops a BUG_ON() from triggering in load_module() when DEFINE_PER_CPU() is used in a module and the section isn't cacheline-aligned. Rusty also found this and sent a patch in a while ago (http://lkml.org/lkml/2004/10/19/17), I don't know what came of that. Signed-off-by: Zach Brown <zach.brown@oracle.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/kernel/vmlinux.lds.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S
index b0eed1faf74..59316d1c1d8 100644
--- a/arch/x86_64/kernel/vmlinux.lds.S
+++ b/arch/x86_64/kernel/vmlinux.lds.S
@@ -173,7 +173,7 @@ SECTIONS
__initramfs_start = .;
.init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) }
__initramfs_end = .;
- . = ALIGN(32);
+ . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
__per_cpu_start = .;
.data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) }
__per_cpu_end = .;