K 10 svn:author V 7 asomers K 8 svn:date V 27 2017-12-11T20:30:58.537422Z K 7 svn:log V 400 MFC r326036: da(4): Short-circuit unnecessary BIO_FLUSH commands sys/cam/scsi/scsi_da.c Complete BIO_FLUSH commands immediately if the da(4) device hasn't been written to since the last flush. If we haven't written to the device, there is no reason to send a flush. Submitted by: gibbs Reviewed by: imp Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D13106 END