wb_switch_rwsem 343 fs/fs-writeback.c down_write(&bdi->wb_switch_rwsem); wb_switch_rwsem 348 fs/fs-writeback.c up_write(&bdi->wb_switch_rwsem); wb_switch_rwsem 368 fs/fs-writeback.c down_read(&bdi->wb_switch_rwsem); wb_switch_rwsem 457 fs/fs-writeback.c up_read(&bdi->wb_switch_rwsem); wb_switch_rwsem 216 include/linux/backing-dev-defs.h struct rw_semaphore wb_switch_rwsem; /* no cgwb switch while syncing */ wb_switch_rwsem 702 mm/backing-dev.c init_rwsem(&bdi->wb_switch_rwsem);