On 2020-May-25 23:47:32 +0000, Chuck Silvers <c...@freebsd.org> wrote: >Author: chs >Date: Mon May 25 23:47:31 2020 >New Revision: 361491 >URL: https://svnweb.freebsd.org/changeset/base/361491 > >Log: > This commit enables a UFS filesystem to do a forcible unmount when > the underlying media fails or becomes inaccessible. For example > when a USB flash memory card hosting a UFS filesystem is unplugged.
This breaks the build when FFS is not built into the kernel but GEOM is (eg for a ZFS-only system). Specifically, ffs_subr.c is marked "optional ffs | geom_label" and this commit added a dependency on M_UFSMNT (defined in sys/ufs/ufs/ufs_vfsops.c) to ffs_subr.c. The geom_label dependency exists because sys/geom/label/g_label_ufs.c relies on ffs_sbget() (defined in ffs_subr.c) to taste UFS partitions. I'm not sure of the best fix here - ideally, the new functions this commit adds to ffs_subr.c would be moved to a different file (though it's not immediately clear which file that would be. -- Peter Jeremy
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