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| author |   Peter Zijlstra <peterz@infradead.org> | 2017-02-18 15:26:45 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-02-20 11:22:37 +0100 |
| commit | 95cb64c1fe61e70685a95f6260c8e9cd219fe08c (patch) | |
| tree | 590f00e1a61d7865525a8a2a8e9a61aed4b01977 /kernel | |
| parent | locking/spinlock/debug: Remove spinlock lockup detection code (diff) | |
| download | linux-dev-95cb64c1fe61e70685a95f6260c8e9cd219fe08c.tar.xz linux-dev-95cb64c1fe61e70685a95f6260c8e9cd219fe08c.zip | |
fork: Fix task_struct alignment
Stupid bug that wrecked the alignment of task_struct and causes WARN()s
in the x86 FPU code on some platforms.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: e274795ea7b7 ("locking/mutex: Fix mutex handoff")
Link: http://lkml.kernel.org/r/20170218142645.GH6500@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
| -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 a90510d0bbf8..ea33f8adc032 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -434,7 +434,7 @@ void __init fork_init(void) #ifndef ARCH_MIN_TASKALIGN #define ARCH_MIN_TASKALIGN 0 #endif - int align = min_t(int, L1_CACHE_BYTES, ARCH_MIN_TASKALIGN); + int align = max_t(int, L1_CACHE_BYTES, ARCH_MIN_TASKALIGN); /* create a slab on which task_structs can be allocated */ task_struct_cachep = kmem_cache_create("task_struct", |