tree 94817ece21bb4b4b2933579417cd2da47d71c684
parent 566f8737630390b743d79e26e4ac855fe2758129
author Peng Tao <tao.peng@primarydata.com> 1415579734 +0800
committer Tom Haynes <loghyr@primarydata.com> 1422990407 -0800

nfs: only reset desc->pg_mirror_idx when mirroring is supported

so that we don't reset desc->pg_mirror_idx for read unnecessarily.
Remove WARN_ON_ONCE from __nfs_pageio_add_request to allow LD to
set pg_mirror_idx for read where pg_mirror_count is always 1.

Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Tom Haynes <loghyr@primarydata.com>