xfs: optimize cache flushing for CIL commits on multi-device file systems

While the flush before writing a start record needs to cover data on the
data and possibly RT devices, the flush before writing the commit record
iclog only needs to ensure previous iclogs are stable on disk.

Split out a new XLOG_ICL_NEED_FLUSH_LOG flag out of XLOG_ICL_NEED_FLUSH
to signal that only the log device needs to be flushed.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

0 files changed, 0 insertions, 0 deletions