diff options
Diffstat (limited to 'fs/fuse/dev.c')
| -rw-r--r-- | fs/fuse/dev.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 11dfa0c3fb46..3b8301f5c0e1 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -130,7 +130,8 @@ static void fuse_req_init_context(struct fuse_req *req) req->in.h.pid = current->pid; } -struct fuse_req *fuse_get_req(struct fuse_conn *fc, unsigned npages) +static struct fuse_req *__fuse_get_req(struct fuse_conn *fc, unsigned npages, + bool for_background) { struct fuse_req *req; sigset_t oldset; @@ -156,14 +157,27 @@ struct fuse_req *fuse_get_req(struct fuse_conn *fc, unsigned npages) fuse_req_init_context(req); req->waiting = 1; + req->background = for_background; return req; out: atomic_dec(&fc->num_waiting); return ERR_PTR(err); } + +struct fuse_req *fuse_get_req(struct fuse_conn *fc, unsigned npages) +{ + return __fuse_get_req(fc, npages, false); +} EXPORT_SYMBOL_GPL(fuse_get_req); +struct fuse_req *fuse_get_req_for_background(struct fuse_conn *fc, + unsigned npages) +{ + return __fuse_get_req(fc, npages, true); +} +EXPORT_SYMBOL_GPL(fuse_get_req_for_background); + /* * Return request in fuse_file->reserved_req. However that may * currently be in use. If that is the case, wait for it to become @@ -232,6 +246,7 @@ struct fuse_req *fuse_get_req_nofail_nopages(struct fuse_conn *fc, fuse_req_init_context(req); req->waiting = 1; + req->background = 0; return req; } @@ -442,6 +457,7 @@ __acquires(fc->lock) static void __fuse_request_send(struct fuse_conn *fc, struct fuse_req *req) { + BUG_ON(req->background); spin_lock(&fc->lock); if (!fc->connected) req->out.h.error = -ENOTCONN; @@ -469,7 +485,7 @@ EXPORT_SYMBOL_GPL(fuse_request_send); static void fuse_request_send_nowait_locked(struct fuse_conn *fc, struct fuse_req *req) { - req->background = 1; + BUG_ON(!req->background); fc->num_background++; if (fc->num_background == fc->max_background) fc->blocked = 1; |