Messages in this thread Patch in this message | | | From | Waiman Long <> | Subject | [PATCH 2/2 v6] locking/selftest: Support queued rwlock | Date | Tue, 29 Jul 2014 14:53:19 -0400 |
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The queued rwlock does not support the use of recursive read-lock in the process context. With changes in the lockdep code to check and disallow recursive read-lock, it is also necessary for the locking selftest to be updated to change the process context recursive read locking results from SUCCESS to FAILURE for rwlock.
Signed-off-by: Waiman Long <Waiman.Long@hp.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> --- lib/locking-selftest.c | 12 ++++++------ 1 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c index 872a15a..9a33688 100644 --- a/lib/locking-selftest.c +++ b/lib/locking-selftest.c @@ -267,19 +267,19 @@ GENERATE_TESTCASE(AA_rsem) #undef E /* - * Special-case for read-locking, they are + * Special-case for read-locking, they are not * allowed to recurse on the same lock class: */ static void rlock_AA1(void) { RL(X1); - RL(X1); // this one should NOT fail + RL(X1); // this one should fail } static void rlock_AA1B(void) { RL(X1); - RL(X2); // this one should NOT fail + RL(X2); // this one should fail } static void rsem_AA1(void) @@ -1069,7 +1069,7 @@ static inline void print_testname(const char *testname) print_testname(desc); \ dotest(name##_spin, FAILURE, LOCKTYPE_SPIN); \ dotest(name##_wlock, FAILURE, LOCKTYPE_RWLOCK); \ - dotest(name##_rlock, SUCCESS, LOCKTYPE_RWLOCK); \ + dotest(name##_rlock, FAILURE, LOCKTYPE_RWLOCK); \ dotest(name##_mutex, FAILURE, LOCKTYPE_MUTEX); \ dotest(name##_wsem, FAILURE, LOCKTYPE_RWSEM); \ dotest(name##_rsem, FAILURE, LOCKTYPE_RWSEM); \ @@ -1830,14 +1830,14 @@ void locking_selftest(void) printk(" --------------------------------------------------------------------------\n"); print_testname("recursive read-lock"); printk(" |"); - dotest(rlock_AA1, SUCCESS, LOCKTYPE_RWLOCK); + dotest(rlock_AA1, FAILURE, LOCKTYPE_RWLOCK); printk(" |"); dotest(rsem_AA1, FAILURE, LOCKTYPE_RWSEM); printk("\n"); print_testname("recursive read-lock #2"); printk(" |"); - dotest(rlock_AA1B, SUCCESS, LOCKTYPE_RWLOCK); + dotest(rlock_AA1B, FAILURE, LOCKTYPE_RWLOCK); printk(" |"); dotest(rsem_AA1B, FAILURE, LOCKTYPE_RWSEM); printk("\n"); -- 1.7.1
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