zswap_tree is not freed when swapoff, and it got re-kmalloc in swapon, so memory-leak occurs.
Modify: free memory of zswap_tree in zswap_frontswap_invalidate_area(). Signed-off-by: Weijie Yang <[email protected]> Reviewed-by: Bob Liu <[email protected]> Cc: Minchan Kim <[email protected]> Cc: [email protected] Acked-by: Seth Jennings <[email protected]> --- mm/zswap.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/mm/zswap.c b/mm/zswap.c index deda2b6..cbd9578 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -816,6 +816,10 @@ static void zswap_frontswap_invalidate_area(unsigned type) } tree->rbroot = RB_ROOT; spin_unlock(&tree->lock); + + zbud_destroy_pool(tree->pool); + kfree(tree); + zswap_trees[type] = NULL; } static struct zbud_ops zswap_zbud_ops = { -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
