From 5437f2417225dc89c785867f4790012668006abc Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Wed, 1 Jul 2015 16:25:56 +0200 Subject: fuse: account as waiting before queuing for background Move accounting of fc->num_waiting to the point where the request actually starts waiting. This is earlier than the current queue_request() for background requests, since they might be waiting on the fc->bg_queue before being queued on fc->pending. Signed-off-by: Miklos Szeredi Reviewed-by: Ashish Samant --- fs/fuse/dev.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'fs') diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 24f1d77b87a4..9e0ed3e714cb 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -327,10 +327,6 @@ static void queue_request(struct fuse_conn *fc, struct fuse_req *req) len_args(req->in.numargs, (struct fuse_arg *) req->in.args); list_add_tail(&req->list, &fc->pending); req->state = FUSE_REQ_PENDING; - if (!req->waiting) { - req->waiting = 1; - atomic_inc(&fc->num_waiting); - } wake_up(&fc->waitq); kill_fasync(&fc->fasync, SIGIO, POLL_IN); } @@ -519,6 +515,10 @@ static void __fuse_request_send(struct fuse_conn *fc, struct fuse_req *req) void fuse_request_send(struct fuse_conn *fc, struct fuse_req *req) { req->isreply = 1; + if (!req->waiting) { + req->waiting = 1; + atomic_inc(&fc->num_waiting); + } __fuse_request_send(fc, req); } EXPORT_SYMBOL_GPL(fuse_request_send); @@ -592,6 +592,10 @@ static void fuse_request_send_nowait_locked(struct fuse_conn *fc, struct fuse_req *req) { BUG_ON(!req->background); + if (!req->waiting) { + req->waiting = 1; + atomic_inc(&fc->num_waiting); + } fc->num_background++; if (fc->num_background == fc->max_background) fc->blocked = 1; -- cgit