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author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-01-22 13:18:40 (GMT) |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-02-14 22:27:59 (GMT) |
commit | 9851673bc32bc9fcafbbaeffc858ead434bd6d58 (patch) | |
tree | 96272ea6db6c2e38b35c86668abd2290bd18df9f /kernel | |
parent | 5346417e17daf5a7712e4cf030b45414e46607cf (diff) | |
download | linux-9851673bc32bc9fcafbbaeffc858ead434bd6d58.tar.xz |
lockdep: move state bit definitions around
For convenience later.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/lockdep_internals.h | 46 | ||||
-rw-r--r-- | kernel/lockdep_states.h | 6 |
2 files changed, 52 insertions, 0 deletions
diff --git a/kernel/lockdep_internals.h b/kernel/lockdep_internals.h index e887b78..1352409 100644 --- a/kernel/lockdep_internals.h +++ b/kernel/lockdep_internals.h @@ -7,6 +7,52 @@ */ /* + * Lock-class usage-state bits: + */ +enum lock_usage_bit { + LOCK_USED = 0, + LOCK_USED_IN_HARDIRQ, + LOCK_USED_IN_SOFTIRQ, + LOCK_USED_IN_RECLAIM_FS, + LOCK_ENABLED_SOFTIRQ, + LOCK_ENABLED_HARDIRQ, + LOCK_ENABLED_RECLAIM_FS, + LOCK_USED_IN_HARDIRQ_READ, + LOCK_USED_IN_SOFTIRQ_READ, + LOCK_USED_IN_RECLAIM_FS_READ, + LOCK_ENABLED_SOFTIRQ_READ, + LOCK_ENABLED_HARDIRQ_READ, + LOCK_ENABLED_RECLAIM_FS_READ, + LOCK_USAGE_STATES +}; + +/* + * Usage-state bitmasks: + */ +#define LOCKF_USED (1 << LOCK_USED) +#define LOCKF_USED_IN_HARDIRQ (1 << LOCK_USED_IN_HARDIRQ) +#define LOCKF_USED_IN_SOFTIRQ (1 << LOCK_USED_IN_SOFTIRQ) +#define LOCKF_USED_IN_RECLAIM_FS (1 << LOCK_USED_IN_RECLAIM_FS) +#define LOCKF_ENABLED_HARDIRQ (1 << LOCK_ENABLED_HARDIRQ) +#define LOCKF_ENABLED_SOFTIRQ (1 << LOCK_ENABLED_SOFTIRQ) +#define LOCKF_ENABLED_RECLAIM_FS (1 << LOCK_ENABLED_RECLAIM_FS) + +#define LOCKF_ENABLED_IRQ (LOCKF_ENABLED_HARDIRQ | LOCKF_ENABLED_SOFTIRQ) +#define LOCKF_USED_IN_IRQ (LOCKF_USED_IN_HARDIRQ | LOCKF_USED_IN_SOFTIRQ) + +#define LOCKF_USED_IN_HARDIRQ_READ (1 << LOCK_USED_IN_HARDIRQ_READ) +#define LOCKF_USED_IN_SOFTIRQ_READ (1 << LOCK_USED_IN_SOFTIRQ_READ) +#define LOCKF_USED_IN_RECLAIM_FS_READ (1 << LOCK_USED_IN_RECLAIM_FS_READ) +#define LOCKF_ENABLED_HARDIRQ_READ (1 << LOCK_ENABLED_HARDIRQ_READ) +#define LOCKF_ENABLED_SOFTIRQ_READ (1 << LOCK_ENABLED_SOFTIRQ_READ) +#define LOCKF_ENABLED_RECLAIM_FS_READ (1 << LOCK_ENABLED_RECLAIM_FS_READ) + +#define LOCKF_ENABLED_IRQ_READ \ + (LOCKF_ENABLED_HARDIRQ_READ | LOCKF_ENABLED_SOFTIRQ_READ) +#define LOCKF_USED_IN_IRQ_READ \ + (LOCKF_USED_IN_HARDIRQ_READ | LOCKF_USED_IN_SOFTIRQ_READ) + +/* * MAX_LOCKDEP_ENTRIES is the maximum number of lock dependencies * we track. * diff --git a/kernel/lockdep_states.h b/kernel/lockdep_states.h index 937039e..995b0cc 100644 --- a/kernel/lockdep_states.h +++ b/kernel/lockdep_states.h @@ -1,3 +1,9 @@ +/* + * Lockdep states, + * + * please update XXX_LOCK_USAGE_STATES in include/linux/lockdep.h whenever + * you add one, or come up with a nice dynamic solution. + */ LOCKDEP_STATE(HARDIRQ) LOCKDEP_STATE(SOFTIRQ) LOCKDEP_STATE(RECLAIM_FS) |