Mark Johnston 5f34e93c58 Check suspendability on the mountpoint returned by VOP_GETWRITEMOUNT. ... This obviates the need for a MNTK_SUSPENDABLE flag, since passthrough filesystems like nullfs and unionfs no longer need to inherit this information from their lower layer(s). This change also restores the pre-r273336 behaviour of using the presence of a susp_clean VFS method to request suspension support. Reviewed by: kib, mjg Differential Revision: https://reviews.freebsd.org/D2937		2015-07-05 22:37:33 +00:00
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null_subr.c
null_vfsops.c
null_vnops.c
null.h