From: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
To: xiubli@redhat.com
Cc: brauner@kernel.org, stgraber@ubuntu.com,
linux-fsdevel@vger.kernel.org,
Christian Brauner <christian.brauner@ubuntu.com>,
Jeff Layton <jlayton@kernel.org>,
Ilya Dryomov <idryomov@gmail.com>,
ceph-devel@vger.kernel.org,
Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH v6 10/15] ceph/file: allow idmapped atomic_open inode op
Date: Fri, 9 Jun 2023 11:31:21 +0200 [thread overview]
Message-ID: <20230609093125.252186-11-aleksandr.mikhalitsyn@canonical.com> (raw)
In-Reply-To: <20230609093125.252186-1-aleksandr.mikhalitsyn@canonical.com>
From: Christian Brauner <christian.brauner@ubuntu.com>
Enable ceph_atomic_open() to handle idmapped mounts. This is just a
matter of passing down the mount's idmapping.
Cc: Xiubo Li <xiubli@redhat.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: ceph-devel@vger.kernel.org
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
[ adapted to 5fadbd9929 ("ceph: rely on vfs for setgid stripping") ]
Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
---
v4:
- call mnt_idmap_get
---
fs/ceph/file.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index e878a462c7c3..7be172f29c0b 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -655,7 +655,9 @@ static int ceph_finish_async_create(struct inode *dir, struct inode *inode,
in.truncate_seq = cpu_to_le32(1);
in.truncate_size = cpu_to_le64(-1ULL);
in.xattr_version = cpu_to_le64(1);
- in.uid = cpu_to_le32(from_kuid(&init_user_ns, current_fsuid()));
+ in.uid = cpu_to_le32(from_kuid(&init_user_ns,
+ mapped_fsuid(req->r_mnt_idmap,
+ &init_user_ns)));
if (dir->i_mode & S_ISGID) {
in.gid = cpu_to_le32(from_kgid(&init_user_ns, dir->i_gid));
@@ -663,7 +665,9 @@ static int ceph_finish_async_create(struct inode *dir, struct inode *inode,
if (S_ISDIR(mode))
mode |= S_ISGID;
} else {
- in.gid = cpu_to_le32(from_kgid(&init_user_ns, current_fsgid()));
+ in.gid = cpu_to_le32(from_kgid(&init_user_ns,
+ mapped_fsgid(req->r_mnt_idmap,
+ &init_user_ns)));
}
in.mode = cpu_to_le32((u32)mode);
@@ -731,6 +735,7 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
struct file *file, unsigned flags, umode_t mode)
{
struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb);
+ struct mnt_idmap *idmap = file_mnt_idmap(file);
struct ceph_mds_client *mdsc = fsc->mdsc;
struct ceph_mds_request *req;
struct inode *new_inode = NULL;
@@ -788,6 +793,7 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
mask |= CEPH_CAP_XATTR_SHARED;
req->r_args.open.mask = cpu_to_le32(mask);
req->r_parent = dir;
+ req->r_mnt_idmap = mnt_idmap_get(idmap);
ihold(dir);
if (IS_ENCRYPTED(dir)) {
set_bit(CEPH_MDS_R_FSCRYPT_FILE, &req->r_req_flags);
--
2.34.1
next prev parent reply other threads:[~2023-06-09 9:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-09 9:31 [PATCH v6 00/15] ceph: support idmapped mounts Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 01/15] fs: export mnt_idmap_get/mnt_idmap_put Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 02/15] ceph: stash idmapping in mdsc request Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 03/15] ceph: handle idmapped mounts in create_request_message() Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 04/15] ceph: pass an idmapping to mknod/symlink/mkdir/rename Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 05/15] ceph: allow idmapped getattr inode op Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 06/15] ceph: allow idmapped permission " Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 07/15] ceph: pass idmap to __ceph_setattr Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 08/15] ceph: allow idmapped setattr inode op Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 09/15] ceph/acl: allow idmapped set_acl " Alexander Mikhalitsyn
2023-06-09 9:31 ` Alexander Mikhalitsyn [this message]
2023-06-09 9:31 ` [PATCH v6 11/15] ceph: pass idmap to ceph_do_getattr Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 12/15] ceph: pass idmap to __ceph_setxattr Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 13/15] ceph: pass idmap to ceph_open/ioctl_set_layout/readdir Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 14/15] ceph: pass idmap to ceph_netfs_issue_op_inline Alexander Mikhalitsyn
2023-06-09 9:31 ` [PATCH v6 15/15] ceph: allow idmapped mounts Alexander Mikhalitsyn
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