Commit 62051200 authored by Ingo Molnar's avatar Ingo Molnar Committed by Linus Torvalds
Browse files

[PATCH] lockdep: fix RT_HASH_LOCK_SZ



On lockdep we have a quite big spinlock_t, so keep the size down.
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarArjan van de Ven <arjan@linux.intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent a0f1ccfd
......@@ -210,17 +210,22 @@ struct rt_hash_bucket {
/*
* Instead of using one spinlock for each rt_hash_bucket, we use a table of spinlocks
* The size of this table is a power of two and depends on the number of CPUS.
* (on lockdep we have a quite big spinlock_t, so keep the size down there)
*/
#if NR_CPUS >= 32
#define RT_HASH_LOCK_SZ 4096
#elif NR_CPUS >= 16
#define RT_HASH_LOCK_SZ 2048
#elif NR_CPUS >= 8
#define RT_HASH_LOCK_SZ 1024
#elif NR_CPUS >= 4
#define RT_HASH_LOCK_SZ 512
#ifdef CONFIG_LOCKDEP
# define RT_HASH_LOCK_SZ 256
#else
#define RT_HASH_LOCK_SZ 256
# if NR_CPUS >= 32
# define RT_HASH_LOCK_SZ 4096
# elif NR_CPUS >= 16
# define RT_HASH_LOCK_SZ 2048
# elif NR_CPUS >= 8
# define RT_HASH_LOCK_SZ 1024
# elif NR_CPUS >= 4
# define RT_HASH_LOCK_SZ 512
# else
# define RT_HASH_LOCK_SZ 256
# endif
#endif
static spinlock_t *rt_hash_locks;
......
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