NFS: Background flush should not be low priority

Background flush is needed in order to satisfy the global page limits.
Don't subvert by reducing the priority.
This should also address a write starvation issue that was reported by
Neil Brown.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 7b9316406930..7a4fe7d82e65 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -247,8 +247,6 @@ static int wb_priority(struct writeback_control *wbc)
                 return FLUSH_HIGHPRI | FLUSH_STABLE;
         if (wbc->sync_mode == WB_SYNC_ALL)
                 ret = FLUSH_COND_STABLE;
-        if (wbc->for_kupdate || wbc->for_background)
-                ret |= FLUSH_LOWPRI;
         return ret;
 }