diff options
Diffstat (limited to 'lib/test_xarray.c')
| -rw-r--r-- | lib/test_xarray.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/test_xarray.c b/lib/test_xarray.c index b711030fbc32..fb472258b639 100644 --- a/lib/test_xarray.c +++ b/lib/test_xarray.c @@ -198,6 +198,25 @@ static noinline void check_xa_shrink(struct xarray *xa) XA_BUG_ON(xa, !xa_empty(xa)); } +static noinline void check_cmpxchg(struct xarray *xa) +{ + void *FIVE = xa_mk_value(5); + void *SIX = xa_mk_value(6); + void *LOTS = xa_mk_value(12345678); + + XA_BUG_ON(xa, !xa_empty(xa)); + XA_BUG_ON(xa, xa_store_index(xa, 12345678, GFP_KERNEL) != NULL); + XA_BUG_ON(xa, xa_insert(xa, 12345678, xa, GFP_KERNEL) != -EEXIST); + XA_BUG_ON(xa, xa_cmpxchg(xa, 12345678, SIX, FIVE, GFP_KERNEL) != LOTS); + XA_BUG_ON(xa, xa_cmpxchg(xa, 12345678, LOTS, FIVE, GFP_KERNEL) != LOTS); + XA_BUG_ON(xa, xa_cmpxchg(xa, 12345678, FIVE, LOTS, GFP_KERNEL) != FIVE); + XA_BUG_ON(xa, xa_cmpxchg(xa, 5, FIVE, NULL, GFP_KERNEL) != NULL); + XA_BUG_ON(xa, xa_cmpxchg(xa, 5, NULL, FIVE, GFP_KERNEL) != NULL); + xa_erase_index(xa, 12345678); + xa_erase_index(xa, 5); + XA_BUG_ON(xa, !xa_empty(xa)); +} + static noinline void check_multi_store(struct xarray *xa) { #ifdef CONFIG_XARRAY_MULTI @@ -274,6 +293,7 @@ static int xarray_checks(void) check_xa_load(&array); check_xa_mark(&array); check_xa_shrink(&array); + check_cmpxchg(&array); check_multi_store(&array); printk("XArray: %u of %u tests passed\n", tests_passed, tests_run); |