From patchwork Wed May 15 19:26:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vivek Goyal X-Patchwork-Id: 10945261 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4535D1515 for ; Wed, 15 May 2019 19:31:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 355CA28609 for ; Wed, 15 May 2019 19:31:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 29CCA28961; Wed, 15 May 2019 19:31:34 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9707D28922 for ; Wed, 15 May 2019 19:31:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727941AbfEOTb0 (ORCPT ); Wed, 15 May 2019 15:31:26 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49824 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726302AbfEOT1c (ORCPT ); Wed, 15 May 2019 15:27:32 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 62695300174D; Wed, 15 May 2019 19:27:32 +0000 (UTC) Received: from horse.redhat.com (unknown [10.18.25.29]) by smtp.corp.redhat.com (Postfix) with ESMTP id D50411001DE1; Wed, 15 May 2019 19:27:29 +0000 (UTC) Received: by horse.redhat.com (Postfix, from userid 10451) id 6FE5E225478; Wed, 15 May 2019 15:27:29 -0400 (EDT) From: Vivek Goyal To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-nvdimm@lists.01.org Cc: vgoyal@redhat.com, miklos@szeredi.hu, stefanha@redhat.com, dgilbert@redhat.com, swhiteho@redhat.com Subject: [PATCH v2 04/30] fuse: export fuse_end_request() Date: Wed, 15 May 2019 15:26:49 -0400 Message-Id: <20190515192715.18000-5-vgoyal@redhat.com> In-Reply-To: <20190515192715.18000-1-vgoyal@redhat.com> References: <20190515192715.18000-1-vgoyal@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.46]); Wed, 15 May 2019 19:27:32 +0000 (UTC) Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Stefan Hajnoczi virtio-fs will need to complete requests from outside fs/fuse/dev.c. Make the symbol visible. Signed-off-by: Stefan Hajnoczi --- fs/fuse/dev.c | 19 ++++++++++--------- fs/fuse/fuse_i.h | 5 +++++ 2 files changed, 15 insertions(+), 9 deletions(-) diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 9971a35cf1ef..46d1aecd7506 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -427,7 +427,7 @@ static void flush_bg_queue(struct fuse_conn *fc) * the 'end' callback is called if given, else the reference to the * request is released */ -static void request_end(struct fuse_conn *fc, struct fuse_req *req) +void fuse_request_end(struct fuse_conn *fc, struct fuse_req *req) { struct fuse_iqueue *fiq = &fc->iq; @@ -480,6 +480,7 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req) put_request: fuse_put_request(fc, req); } +EXPORT_SYMBOL_GPL(fuse_request_end); static int queue_interrupt(struct fuse_iqueue *fiq, struct fuse_req *req) { @@ -567,12 +568,12 @@ static void __fuse_request_send(struct fuse_conn *fc, struct fuse_req *req) req->in.h.unique = fuse_get_unique(fiq); queue_request(fiq, req); /* acquire extra reference, since request is still needed - after request_end() */ + after fuse_request_end() */ __fuse_get_request(req); spin_unlock(&fiq->waitq.lock); request_wait_answer(fc, req); - /* Pairs with smp_wmb() in request_end() */ + /* Pairs with smp_wmb() in fuse_request_end() */ smp_rmb(); } } @@ -1302,7 +1303,7 @@ __releases(fiq->waitq.lock) * the pending list and copies request data to userspace buffer. If * no reply is needed (FORGET) or request has been aborted or there * was an error during the copying then it's finished by calling - * request_end(). Otherwise add it to the processing list, and set + * fuse_request_end(). Otherwise add it to the processing list, and set * the 'sent' flag. */ static ssize_t fuse_dev_do_read(struct fuse_dev *fud, struct file *file, @@ -1362,7 +1363,7 @@ static ssize_t fuse_dev_do_read(struct fuse_dev *fud, struct file *file, /* SETXATTR is special, since it may contain too large data */ if (in->h.opcode == FUSE_SETXATTR) req->out.h.error = -E2BIG; - request_end(fc, req); + fuse_request_end(fc, req); goto restart; } spin_lock(&fpq->lock); @@ -1405,7 +1406,7 @@ static ssize_t fuse_dev_do_read(struct fuse_dev *fud, struct file *file, if (!test_bit(FR_PRIVATE, &req->flags)) list_del_init(&req->list); spin_unlock(&fpq->lock); - request_end(fc, req); + fuse_request_end(fc, req); return err; err_unlock: @@ -1913,7 +1914,7 @@ static int copy_out_args(struct fuse_copy_state *cs, struct fuse_out *out, * the write buffer. The request is then searched on the processing * list by the unique ID found in the header. If found, then remove * it from the list and copy the rest of the buffer to the request. - * The request is finished by calling request_end() + * The request is finished by calling fuse_request_end(). */ static ssize_t fuse_dev_do_write(struct fuse_dev *fud, struct fuse_copy_state *cs, size_t nbytes) @@ -2000,7 +2001,7 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud, list_del_init(&req->list); spin_unlock(&fpq->lock); - request_end(fc, req); + fuse_request_end(fc, req); out: return err ? err : nbytes; @@ -2140,7 +2141,7 @@ static void end_requests(struct fuse_conn *fc, struct list_head *head) req->out.h.error = -ECONNABORTED; clear_bit(FR_SENT, &req->flags); list_del_init(&req->list); - request_end(fc, req); + fuse_request_end(fc, req); } } diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index 0920c0c032a0..c4584c873b87 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -949,6 +949,11 @@ ssize_t fuse_simple_request(struct fuse_conn *fc, struct fuse_args *args); void fuse_request_send_background(struct fuse_conn *fc, struct fuse_req *req); bool fuse_request_queue_background(struct fuse_conn *fc, struct fuse_req *req); +/** + * End a finished request + */ +void fuse_request_end(struct fuse_conn *fc, struct fuse_req *req); + /* Abort all requests */ void fuse_abort_conn(struct fuse_conn *fc); void fuse_wait_aborted(struct fuse_conn *fc);