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author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
commit | b4b7ff4b08e691656c9d77c758fc355833128ac0 (patch) | |
tree | 82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /kernel/futex.c | |
parent | 35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff) |
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'kernel/futex.c')
-rw-r--r-- | kernel/futex.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/kernel/futex.c b/kernel/futex.c index 6e443efc6..684d75498 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -255,9 +255,18 @@ struct futex_hash_bucket { struct plist_head chain; } ____cacheline_aligned_in_smp; -static unsigned long __read_mostly futex_hashsize; +/* + * The base of the bucket array and its size are always used together + * (after initialization only in hash_futex()), so ensure that they + * reside in the same cacheline. + */ +static struct { + struct futex_hash_bucket *queues; + unsigned long hashsize; +} __futex_data __read_mostly __aligned(2*sizeof(long)); +#define futex_queues (__futex_data.queues) +#define futex_hashsize (__futex_data.hashsize) -static struct futex_hash_bucket *futex_queues; /* * Fault injections for futexes. @@ -267,10 +276,10 @@ static struct futex_hash_bucket *futex_queues; static struct { struct fault_attr attr; - u32 ignore_private; + bool ignore_private; } fail_futex = { .attr = FAULT_ATTR_INITIALIZER, - .ignore_private = 0, + .ignore_private = false, }; static int __init setup_fail_futex(char *str) |