On (24/02/20 11:36), Chengming Zhou wrote: > From: Chengming Zhou <zhouchengming@xxxxxxxxxxxxx> > > migrate_write_lock() is a empty function when !CONFIG_COMPACTION, in > which case zs_compact() can be triggered from shrinker reclaim context. > (Maybe it's better to rename it to zs_shrink()?) > > And zspage map object users rely on this migrate_read_lock() so object > won't be migrated elsewhere. > > Fix it by always implementing the migrate_write_lock() related functions. > > Signed-off-by: Chengming Zhou <zhouchengming@xxxxxxxxxxxxx> Reviewed-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
