On Wed, Sep 21 2016 at 7:09pm -0400, Wonhong Kwon <wonhong.kwon@xxxxxxx> wrote: > swap_slot_free_notify callback has been added to block_device_operations to > allow freeing memory allocated by RAM-based swap device like zram or zswap > more aggressively. > > In case of device mapper, it is also required if mapped target is being > used as swap device and it uses some in-memory metadata for swap entries. > This patch introduces swap_slot_free_notify callback into dm_blk_ops and > target device can implement its own handler to handle this via > slot_free_notify in target_type. > > Signed-off-by: Wonhong Kwon <wonhong.kwon@xxxxxxx> This change to DM core only makes sense once we have an upstream DM target that implements slot_free_notify hook. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
