Commit kernel-4.18.0-361.el8~13^2~6 ("bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag", upstream commit f56753ac2a90) has changed the semantics of bdi->capabilities without any oracleasm-tangible kABI effect (by virtue of being a change of macro values; the accompying function change has not have any effect as oracleasm kmod doesn't utilise any of them). Update the capabilities value to a new one. Index: oracleasm-redhat-2.0.8/drivers/block/oracleasm/driver.c =================================================================== --- oracleasm-redhat-2.0.8.orig/drivers/block/oracleasm/driver.c 2022-02-21 22:04:43.375816985 +0100 +++ oracleasm-redhat-2.0.8/drivers/block/oracleasm/driver.c 2022-02-21 22:05:36.277381843 +0100 @@ -726,7 +726,7 @@ struct backing_dev_info *bdi = inode_to_bdi(inode); bdi->ra_pages = 0; /* No readahead */ - bdi->capabilities = BDI_CAP_NO_ACCT_DIRTY | BDI_CAP_NO_WRITEBACK; + bdi->capabilities = 0; BUG_ON(atomic_read(&d->d_ios) != 0); BUG_ON(d->d_live);