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authorSimon Glass2022-10-29 19:47:08 -0600
committerSimon Glass2022-11-07 16:24:30 -0700
commit5ea894ac4285be2bebc2e7bdfd6451c699469f37 (patch)
tree52ab410f3ca011c24657c5498859efac5f93dc4a /include
parentfa1e420ab0259b0e8c975a6572dc3086596b980e (diff)
dm: test: Clear the block cache after running a test
Some tests access data in block devices and so cause the cache to fill up. This results in memory being allocated. Some tests check the malloc usage at the beginning and then again at the end, to ensure there is no memory leak caused by the test. The block cache makes this difficult, since the any test may cause entries to be allocated or even freed, if the cache becomes full. It is simpler to clear the block cache after each test. This ensures that it will not introduce noise in tests which check malloc usage. Add the logic to clear the cache, using the existing blkcache_invalidate() function. Drop the duplicate code at the same time. Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include')
-rw-r--r--include/blk.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/include/blk.h b/include/blk.h
index e854166edb9..c8cbb64c7f8 100644
--- a/include/blk.h
+++ b/include/blk.h
@@ -147,8 +147,8 @@ void blkcache_fill(int iftype, int dev,
* blkcache_invalidate() - discard the cache for a set of blocks
* because of a write or device (re)initialization.
*
- * @param iftype - uclass_id_x for type of device
- * @param dev - device index of particular type
+ * @iftype - UCLASS_ID_ for type of device, or -1 for any
+ * @dev - device index of particular type, if @iftype is not -1
*/
void blkcache_invalidate(int iftype, int dev);
@@ -178,6 +178,9 @@ struct block_cache_stats {
*/
void blkcache_stats(struct block_cache_stats *stats);
+/** blkcache_free() - free all memory allocated to the block cache */
+void blkcache_free(void);
+
#else
static inline int blkcache_read(int iftype, int dev,
@@ -193,6 +196,8 @@ static inline void blkcache_fill(int iftype, int dev,
static inline void blkcache_invalidate(int iftype, int dev) {}
+static inline void blkcache_free(void) {}
+
#endif
#if CONFIG_IS_ENABLED(BLK)