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From:   Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
To:     xiubli@redhat.com
Cc:     brauner@kernel.org, stgraber@ubuntu.com,
        linux-fsdevel@vger.kernel.org,
        Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>,
        Jeff Layton <jlayton@kernel.org>,
        Ilya Dryomov <idryomov@gmail.com>, ceph-devel@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH v6 14/15] ceph: pass idmap to ceph_netfs_issue_op_inline
Date:   Fri,  9 Jun 2023 11:31:25 +0200
Message-Id: <20230609093125.252186-15-aleksandr.mikhalitsyn@canonical.com>
In-Reply-To: <20230609093125.252186-1-aleksandr.mikhalitsyn@canonical.com>
References: <20230609093125.252186-1-aleksandr.mikhalitsyn@canonical.com>
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Just pass down the mount's idmapping to ceph_netfs_issue_op_inline.

Cc: Xiubo Li <xiubli@redhat.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: brauner@kernel.org
Cc: ceph-devel@vger.kernel.org
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
---
 fs/ceph/addr.c  | 12 ++++++++++++
 fs/ceph/super.h |  2 ++
 2 files changed, 14 insertions(+)

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 0a32475ed034..2759a0cf2381 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -291,6 +291,8 @@ static bool ceph_netfs_issue_op_inline(struct netfs_io_subrequest *subreq)
 {
 	struct netfs_io_request *rreq = subreq->rreq;
 	struct inode *inode = rreq->inode;
+	struct ceph_netfs_request_data *priv = rreq->netfs_priv;
+	struct mnt_idmap *idmap = priv->mnt_idmap;
 	struct ceph_mds_reply_info_parsed *rinfo;
 	struct ceph_mds_reply_info_in *iinfo;
 	struct ceph_mds_request *req;
@@ -318,6 +320,8 @@ static bool ceph_netfs_issue_op_inline(struct netfs_io_subrequest *subreq)
 	req->r_args.getattr.mask = cpu_to_le32(CEPH_STAT_CAP_INLINE_DATA);
 	req->r_num_caps = 2;
 
+	req->r_mnt_idmap = mnt_idmap_get(idmap);
+
 	err = ceph_mdsc_do_request(mdsc, NULL, req);
 	if (err < 0)
 		goto out;
@@ -443,13 +447,18 @@ static int ceph_init_request(struct netfs_io_request *rreq, struct file *file)
 	if (!priv)
 		return -ENOMEM;
 
+	priv->mnt_idmap = &nop_mnt_idmap;
+
 	if (file) {
 		struct ceph_rw_context *rw_ctx;
 		struct ceph_file_info *fi = file->private_data;
+		struct mnt_idmap *idmap = file_mnt_idmap(file);
 
 		priv->file_ra_pages = file->f_ra.ra_pages;
 		priv->file_ra_disabled = file->f_mode & FMODE_RANDOM;
 
+		priv->mnt_idmap = mnt_idmap_get(idmap);
+
 		rw_ctx = ceph_find_rw_context(fi);
 		if (rw_ctx) {
 			rreq->netfs_priv = priv;
@@ -496,6 +505,9 @@ static void ceph_netfs_free_request(struct netfs_io_request *rreq)
 
 	if (priv->caps)
 		ceph_put_cap_refs(ceph_inode(rreq->inode), priv->caps);
+
+	mnt_idmap_put(priv->mnt_idmap);
+
 	kfree(priv);
 	rreq->netfs_priv = NULL;
 }
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index d89e7b99ac5f..0badf58fb5fc 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -481,6 +481,8 @@ struct ceph_netfs_request_data {
 
 	/* Set it if fadvise disables file readahead entirely */
 	bool file_ra_disabled;
+
+	struct mnt_idmap *mnt_idmap;
 };
 
 static inline struct ceph_inode_info *
-- 
2.34.1