[U-Boot] [PATCH] [RFC] blk: Increase cache element size

[Marek Vasut]

Cache up to 4 kiB entries. 4 kiB is the default block size on ext4, yet
the underlying block layer devices usually report support for 512B . In
most cases, the 512B support is emulated (ie. SD cards, SSDs, USB sticks
etc.) and the real block size of those devices is much bigger.

To avoid performance degradation with such devices and FS setup, bump
the maximum cache entry size to 4 kiB.

Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Tom Rini <trini at konsulko.com>
Cc: Simon Glass <sjg at chromium.org>
---
 drivers/block/blkcache.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/blkcache.c b/drivers/block/blkcache.c
index 294511fcdb..1fa64989d3 100644
--- a/drivers/block/blkcache.c
+++ b/drivers/block/blkcache.c
@@ -24,7 +24,7 @@ struct block_cache_node {
 static LIST_HEAD(block_cache);
 
 static struct block_cache_stats _stats = {
-	.max_blocks_per_entry = 2,
+	.max_blocks_per_entry = 8,
 	.max_entries = 32
 };
 
-- 
2.16.2