diff options
| author | Andrew Morton <akpm@osdl.org> | 2004-04-30 00:51:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-04-30 00:51:54 -0700 |
| commit | 978b7ac2c3ef8984c2d7473e21f8dec772cfb147 (patch) | |
| tree | 042569568660b3f83fa519fb4abc5947c971484d /kernel/fork.c | |
| parent | 5d3c500bc7ad03ec118c66bca735fd93fc7e804e (diff) | |
[PATCH] task_struct alignment fix
The recent slab alignment changes broke an unknown number of architectures
(parisc and x86_64 for sure) by causing task_structs to be insufficiently
aligned.
We need good alignemnt because architectures do things like dumping FP state
into the task_struct with instructions which require particular alignment (I
think).
So change the default alignment to L1_CACHE_BYTES, which is what we used to
have, via SLAB_HW_CACHE_ALIGN.
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 4f5b018777d8..68597bc347f2 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -211,7 +211,7 @@ void __init fork_init(unsigned long mempages) { #ifndef __HAVE_ARCH_TASK_STRUCT_ALLOCATOR #ifndef ARCH_MIN_TASKALIGN -#define ARCH_MIN_TASKALIGN 0 +#define ARCH_MIN_TASKALIGN L1_CACHE_BYTES #endif /* create a slab on which task_structs can be allocated */ task_struct_cachep = |