Am 29.08.2016 um 19:10 hat Pavel Butsykin geschrieben:
> This is a simple solution to the problem of displacement of cache memory.
> The LRU can be useful to avoid the displacement of the nodes, which have
> been partially read.
>
> Signed-off-by: Pavel Butsykin <pbutsy...@virtuozzo.com>
> ---
> block/pcache.c | 74
> +++++++++++++++++++++++++++++++++++++++++++++-------------
> 1 file changed, 58 insertions(+), 16 deletions(-)
>
> diff --git a/block/pcache.c b/block/pcache.c
> index 54d4526..7504db8 100644
> --- a/block/pcache.c
> +++ b/block/pcache.c
> @@ -67,6 +67,11 @@ typedef struct ReqStor {
> CoMutex lock;
> } tree;
>
> + struct {
> + QTAILQ_HEAD(lru_head, BlockNode) list;
> + CoMutex lock;
This is another lock that doesn't do anything.
> + } lru;
> +
> uint32_t curr_size;
> } ReqStor;
Kevin
