From patchwork Thu Dec 9 15:36:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 12666825 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 29DEAC43217 for ; Thu, 9 Dec 2021 15:37:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240322AbhLIPl1 (ORCPT ); Thu, 9 Dec 2021 10:41:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49918 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240329AbhLIPky (ORCPT ); Thu, 9 Dec 2021 10:40:54 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DEB2DC0698D9; Thu, 9 Dec 2021 07:37:14 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 66708CE263D; Thu, 9 Dec 2021 15:37:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 31DF2C004DD; Thu, 9 Dec 2021 15:37:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1639064232; bh=pFmBCVoOH6JkcYU7gCUQP7vvdG1eLZKZ8kImb7a/5OM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=my5cFt4baS6znIfsovW0azl2xiDNd7h0AS3shWlMUUZnjMURFYhl8JTcyMbOEI+pb SL4SM7vtjplU6wZPeArLOoJmusIlBLz/DY+rkV3x8SvTWCsKvNuGiSKl0tuR86a69h CLLAmXBa/SBdF6hcqzXWb1kxL+VHLM7fbvH+Yu9e9OfLJpzrcLfJbnvKdJNNeIz/B3 aomG11XXpaEBEtvIOvuUJGe0kJk4O/bOtJnrPFHEfUIbMgENXfzvQRhou2kTTwXcae Euibm0U17J3crSY+qLsgLfmc+DDtrM5NuatunwgCj4VFBlcCZqpQdbfJwS1yPPb27w bCbf8Iv+NpZHA== From: Jeff Layton To: ceph-devel@vger.kernel.org Cc: linux-fscrypt@vger.kernel.org, linux-fsdevel@vger.kernel.org, Xiubo Li Subject: [PATCH 33/36] ceph: add __ceph_get_caps helper support Date: Thu, 9 Dec 2021 10:36:44 -0500 Message-Id: <20211209153647.58953-34-jlayton@kernel.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211209153647.58953-1-jlayton@kernel.org> References: <20211209153647.58953-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fscrypt@vger.kernel.org From: Xiubo Li Signed-off-by: Xiubo Li Signed-off-by: Jeff Layton --- fs/ceph/caps.c | 19 +++++++++++++------ fs/ceph/super.h | 2 ++ 2 files changed, 15 insertions(+), 6 deletions(-) diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 14e32f1d1e2b..1f1a1c6987ce 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -2912,10 +2912,9 @@ int ceph_try_get_caps(struct inode *inode, int need, int want, * due to a small max_size, make sure we check_max_size (and possibly * ask the mds) so we don't get hung up indefinitely. */ -int ceph_get_caps(struct file *filp, int need, int want, loff_t endoff, int *got) +int __ceph_get_caps(struct inode *inode, struct ceph_file_info *fi, int need, + int want, loff_t endoff, int *got) { - struct ceph_file_info *fi = filp->private_data; - struct inode *inode = file_inode(filp); struct ceph_inode_info *ci = ceph_inode(inode); struct ceph_fs_client *fsc = ceph_inode_to_client(inode); int ret, _got, flags; @@ -2924,7 +2923,7 @@ int ceph_get_caps(struct file *filp, int need, int want, loff_t endoff, int *got if (ret < 0) return ret; - if ((fi->fmode & CEPH_FILE_MODE_WR) && + if (fi && (fi->fmode & CEPH_FILE_MODE_WR) && fi->filp_gen != READ_ONCE(fsc->filp_gen)) return -EBADF; @@ -2932,7 +2931,7 @@ int ceph_get_caps(struct file *filp, int need, int want, loff_t endoff, int *got while (true) { flags &= CEPH_FILE_MODE_MASK; - if (atomic_read(&fi->num_locks)) + if (fi && atomic_read(&fi->num_locks)) flags |= CHECK_FILELOCK; _got = 0; ret = try_get_cap_refs(inode, need, want, endoff, @@ -2977,7 +2976,7 @@ int ceph_get_caps(struct file *filp, int need, int want, loff_t endoff, int *got continue; } - if ((fi->fmode & CEPH_FILE_MODE_WR) && + if (fi && (fi->fmode & CEPH_FILE_MODE_WR) && fi->filp_gen != READ_ONCE(fsc->filp_gen)) { if (ret >= 0 && _got) ceph_put_cap_refs(ci, _got); @@ -3040,6 +3039,14 @@ int ceph_get_caps(struct file *filp, int need, int want, loff_t endoff, int *got return 0; } +int ceph_get_caps(struct file *filp, int need, int want, loff_t endoff, int *got) +{ + struct ceph_file_info *fi = filp->private_data; + struct inode *inode = file_inode(filp); + + return __ceph_get_caps(inode, fi, need, want, endoff, got); +} + /* * Take cap refs. Caller must already know we hold at least one ref * on the caps in question or we don't know this is safe. diff --git a/fs/ceph/super.h b/fs/ceph/super.h index f641a1a771e2..c373f3ba7d55 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -1230,6 +1230,8 @@ extern int ceph_encode_dentry_release(void **p, struct dentry *dn, struct inode *dir, int mds, int drop, int unless); +extern int __ceph_get_caps(struct inode *inode, struct ceph_file_info *fi, + int need, int want, loff_t endoff, int *got); extern int ceph_get_caps(struct file *filp, int need, int want, loff_t endoff, int *got); extern int ceph_try_get_caps(struct inode *inode,