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authorMiklos Szeredi <mszeredi@suse.cz>2015-07-01 16:25:56 +0200
committerMiklos Szeredi <mszeredi@suse.cz>2015-07-01 16:25:56 +0200
commit5437f2417225dc89c785867f4790012668006abc (patch)
tree8b470061581fd912bce1a8996f6fa433ff24a671 /fs/fuse
parent73e0e738441b26a2dfc1ccdf1462cd1dc13c8cea (diff)
downloadop-kernel-dev-5437f2417225dc89c785867f4790012668006abc.zip
op-kernel-dev-5437f2417225dc89c785867f4790012668006abc.tar.gz
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 <mszeredi@suse.cz> Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
Diffstat (limited to 'fs/fuse')
-rw-r--r--fs/fuse/dev.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 24f1d77..9e0ed3e 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;
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