diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/locking-selftest.c | 56 |
1 files changed, 49 insertions, 7 deletions
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c index 872a15a2a637..62af709b2083 100644 --- a/lib/locking-selftest.c +++ b/lib/locking-selftest.c @@ -267,19 +267,46 @@ GENERATE_TESTCASE(AA_rsem) #undef E /* - * Special-case for read-locking, they are - * allowed to recurse on the same lock class: + * Special-case for read-locking, they are not allowed to + * recurse on the same lock class except under interrupt context: */ 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 rlock_AHA1(void) +{ + RL(X1); + HARDIRQ_ENTER(); + RL(X1); // this one should NOT fail + HARDIRQ_EXIT(); +} + +static void rlock_AHA1B(void) +{ + RL(X1); + HARDIRQ_ENTER(); + RL(X2); // this one should NOT fail + HARDIRQ_EXIT(); +} + +static void rlock_ASAHA1(void) +{ + RL(X1); + SOFTIRQ_ENTER(); + RL(X1); // this one should NOT fail + HARDIRQ_ENTER(); + RL(X1); // this one should NOT fail + HARDIRQ_EXIT(); + SOFTIRQ_EXIT(); } static void rsem_AA1(void) @@ -1069,7 +1096,7 @@ 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 +1857,14 @@ 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"); @@ -1856,6 +1883,21 @@ void locking_selftest(void) dotest(rsem_AA3, FAILURE, LOCKTYPE_RWSEM); printk("\n"); + print_testname("recursive rlock with interrupt"); + printk(" |"); + dotest(rlock_AHA1, SUCCESS, LOCKTYPE_RWLOCK); + printk("\n"); + + print_testname("recursive rlock with interrupt #2"); + printk(" |"); + dotest(rlock_AHA1B, SUCCESS, LOCKTYPE_RWLOCK); + printk("\n"); + + print_testname("recursive rlock with interrupt #3"); + printk(" |"); + dotest(rlock_ASAHA1, SUCCESS, LOCKTYPE_RWLOCK); + printk("\n"); + printk(" --------------------------------------------------------------------------\n"); /* |