fuse: update fuse_conn_init() and separate out fuse_conn_kill()

Update fuse_conn_init() such that it doesn't take @sb and move bdi
registration into a separate function.  Also separate out
fuse_conn_kill() from fuse_put_super().

These will be used to implement cuse.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index ba76b68c52ff..368189fd4056 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -282,7 +282,7 @@ __releases(&fc->lock)
                         wake_up_all(&fc->blocked_waitq);
                 }
                 if (fc->num_background == FUSE_CONGESTION_THRESHOLD &&
-                    fc->connected) {
+                    fc->connected && fc->bdi_initialized) {
                         clear_bdi_congested(&fc->bdi, READ);
                         clear_bdi_congested(&fc->bdi, WRITE);
                 }
@@ -408,7 +408,8 @@ static void fuse_request_send_nowait_locked(struct fuse_conn *fc,
         fc->num_background++;
         if (fc->num_background == FUSE_MAX_BACKGROUND)
                 fc->blocked = 1;
-        if (fc->num_background == FUSE_CONGESTION_THRESHOLD) {
+        if (fc->num_background == FUSE_CONGESTION_THRESHOLD &&
+            fc->bdi_initialized) {
                 set_bdi_congested(&fc->bdi, READ);
                 set_bdi_congested(&fc->bdi, WRITE);
         }