diff options
| author | Zach Brown <zach.brown@oracle.com> | 2006-02-03 15:51:35 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-02-04 19:43:14 -0500 |
| commit | 16acc0cd8f1aac63ddf5228c5bc29cf7d31627f4 (patch) | |
| tree | c1e6ae0b4f666a3e85b12b9280d1bff63104cf9e /arch/x86_64 | |
| parent | a1002a48e1af5ff8d02bfe79536e6fce3a0ec369 (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.S | 2 |
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 b0eed1faf740..59316d1c1d84 100644 --- a/arch/x86_64/kernel/vmlinux.lds.S +++ b/arch/x86_64/kernel/vmlinux.lds.S | |||
| @@ -173,7 +173,7 @@ SECTIONS | |||
| 173 | __initramfs_start = .; | 173 | __initramfs_start = .; |
| 174 | .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) } | 174 | .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) } |
| 175 | __initramfs_end = .; | 175 | __initramfs_end = .; |
| 176 | . = ALIGN(32); | 176 | . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); |
| 177 | __per_cpu_start = .; | 177 | __per_cpu_start = .; |
| 178 | .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) } | 178 | .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) } |
| 179 | __per_cpu_end = .; | 179 | __per_cpu_end = .; |