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blk: Increase cache element size

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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@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Marek Vasut 2018-08-08 13:20:29 +02:00 committed by Tom Rini
parent 45297e2ab2
commit 2e89bbefdc
1 changed files with 1 additions and 1 deletions
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2
drivers/block/blkcache.c
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@ -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
};