Chuck Silvers 3dc5f8e19d ffs: wait for trims earlier during unmount to avoid panic ... All softdep processing is supposed to be completed by softdep_flushfiles() and no more deps are supposed to be created after that, but if a pending trim completes after softdep_flushfiles() and before softdep_unmount() then the blkfree that is performed by ffs_blkfree_trim_task() will create a dep when none should exist, and if softdep_unmount() is called before that dep is freed then the kernel will panic. Prevent this by waiting for trims to complete earlier in the unmount process, in ffs_flushfiles(), so that any deps will be freed and any modified CG buffers will be flushed by the final fsync of the devvp in ffs_flushfiles() as intended. Reviewed by: mckusick, kib Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D34806		2022-04-08 10:19:40 -07:00
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ffs	ffs: wait for trims earlier during unmount to avoid panic	2022-04-08 10:19:40 -07:00
ufs	vfs: NDFREE(&nd, NDF_ONLY_PNBUF) -> NDFREE_PNBUF(&nd)	2022-03-24 10:20:51 +00:00