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Message-ID: <25fe78fd-9e34-d4bd-1b7b-68af8ef55b16@redhat.com>
Date: Tue, 24 May 2022 08:29:23 +0800
From: Xiubo Li <xiubli@...hat.com>
To: David Howells <dhowells@...hat.com>, jlayton@...nel.org,
keescook@...omium.org
Cc: Jonathan Corbet <corbet@....net>,
Eric Van Hensbergen <ericvh@...il.com>,
Latchesar Ionkov <lucho@...kov.net>,
Dominique Martinet <asmadeus@...ewreck.org>,
Christian Schoenebeck <linux_oss@...debyte.com>,
Marc Dionne <marc.dionne@...istor.com>,
Ilya Dryomov <idryomov@...il.com>,
Steve French <smfrench@...il.com>,
William Kucharski <william.kucharski@...cle.com>,
"Matthew Wilcox (Oracle)" <willy@...radead.org>,
linux-doc@...r.kernel.org, v9fs-developer@...ts.sourceforge.net,
linux-afs@...ts.infradead.org, ceph-devel@...r.kernel.org,
linux-cifs@...r.kernel.org, samba-technical@...ts.samba.org,
linux-fsdevek@...r.kernel.org, linux-hardening@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netfs: Fix gcc-12 warning by embedding vfs inode in
netfs_i_context
On 5/19/22 9:44 PM, David Howells wrote:
> While randstruct was satisfied with using an open-coded "void *" offset
> cast for the netfs_i_context <-> inode casting, __builtin_object_size() as
> used by FORTIFY_SOURCE was not as easily fooled. This was causing the
> following complaint[1] from gcc v12:
>
> In file included from ./include/linux/string.h:253,
> from ./include/linux/ceph/ceph_debug.h:7,
> from fs/ceph/inode.c:2:
> In function 'fortify_memset_chk',
> inlined from 'netfs_i_context_init' at ./include/linux/netfs.h:326:2,
> inlined from 'ceph_alloc_inode' at fs/ceph/inode.c:463:2:
> ./include/linux/fortify-string.h:242:25: warning: call to '__write_overflow_field' declared with attribute warning:
> detected write beyond size of field (1st parameter); maybe use struct_group()? [-Wattribute-warning]
> 242 | __write_overflow_field(p_size_field, size);
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Fix this by embedding a struct inode into struct netfs_i_context (which
> should perhaps be renamed to struct netfs_inode). The struct inode
> vfs_inode fields are then removed from the 9p, afs, ceph and cifs inode
> structs and vfs_inode is then simply changed to "nic.inode" in those
> filesystems.
>
> Most of the changes were done with:
>
> perl -p -i -e 's/vfs_inode/nic.inode/'g \
> `git grep -l 'vfs_inode' -- fs/{9p,afs,ceph,cifs}/*.[ch]`
>
> Kees suggested doing it with a pair structure[2] and a special declarator
> to insert that into the network filesystem's inode wrapper[3], but I think
> it's cleaner to embed it - and then it doesn't matter if struct
> randomisation reorders things.
>
> Fixes: bc899ee1c898 ("netfs: Add a netfs inode context")
> Reported-by: Jeff Layton <jlayton@...nel.org>
> Signed-off-by: David Howells <dhowells@...hat.com>
> cc: Kees Cook <keescook@...omium.org>
> cc: Jonathan Corbet <corbet@....net>
> cc: Eric Van Hensbergen <ericvh@...il.com>
> cc: Latchesar Ionkov <lucho@...kov.net>
> cc: Dominique Martinet <asmadeus@...ewreck.org>
> cc: Christian Schoenebeck <linux_oss@...debyte.com>
> cc: Marc Dionne <marc.dionne@...istor.com>
> cc: Xiubo Li <xiubli@...hat.com>
> cc: Ilya Dryomov <idryomov@...il.com>
> cc: Steve French <smfrench@...il.com>
> cc: William Kucharski <william.kucharski@...cle.com>
> cc: "Matthew Wilcox (Oracle)" <willy@...radead.org>
> cc: linux-doc@...r.kernel.org
> cc: v9fs-developer@...ts.sourceforge.net
> cc: linux-afs@...ts.infradead.org
> cc: ceph-devel@...r.kernel.org
> cc: linux-cifs@...r.kernel.org
> cc: samba-technical@...ts.samba.org
> cc: linux-fsdevek@...r.kernel.org
> cc: linux-hardening@...r.kernel.org
> Link: https://lore.kernel.org/r/d2ad3a3d7bdd794c6efb562d2f2b655fb67756b9.camel@kernel.org/ [1]
> Link: https://lore.kernel.org/r/20220517210230.864239-1-keescook@chromium.org/ [2]
> Link: https://lore.kernel.org/r/20220518202212.2322058-1-keescook@chromium.org/ [3]
> ---
>
> Documentation/filesystems/netfs_library.rst | 25 +++---
> fs/9p/cache.c | 4 +
> fs/9p/v9fs.c | 2 -
> fs/9p/v9fs.h | 10 +--
> fs/9p/vfs_addr.c | 2 -
> fs/9p/vfs_inode.c | 2 -
> fs/afs/callback.c | 2 -
> fs/afs/dir.c | 32 ++++----
> fs/afs/dir_edit.c | 10 +--
> fs/afs/dir_silly.c | 4 +
> fs/afs/file.c | 4 +
> fs/afs/fs_operation.c | 6 +-
> fs/afs/inode.c | 38 +++++-----
> fs/afs/internal.h | 23 ++----
> fs/afs/super.c | 6 +-
> fs/afs/write.c | 21 +++--
> fs/ceph/addr.c | 4 +
> fs/ceph/cache.c | 4 +
> fs/ceph/cache.h | 2 -
> fs/ceph/caps.c | 104 ++++++++++++++-------------
> fs/ceph/file.c | 2 -
> fs/ceph/inode.c | 10 +--
> fs/ceph/mds_client.c | 4 +
> fs/ceph/snap.c | 8 +-
> fs/ceph/super.c | 2 -
> fs/ceph/super.h | 10 +--
> fs/ceph/xattr.c | 14 ++--
> fs/cifs/cifsfs.c | 8 +-
> fs/cifs/cifsglob.h | 12 +--
> fs/cifs/file.c | 8 +-
> fs/cifs/fscache.c | 4 +
> fs/cifs/fscache.h | 8 +-
> fs/cifs/inode.c | 4 +
> fs/cifs/misc.c | 4 +
> fs/cifs/smb2ops.c | 8 +-
> include/linux/netfs.h | 11 ++-
> 36 files changed, 204 insertions(+), 218 deletions(-)
>
> diff --git a/Documentation/filesystems/netfs_library.rst b/Documentation/filesystems/netfs_library.rst
> index 69f00179fdfe..5272307a0ddc 100644
> --- a/Documentation/filesystems/netfs_library.rst
> +++ b/Documentation/filesystems/netfs_library.rst
> @@ -38,29 +38,30 @@ its use on each netfs inode it is helping to manage. To this end, a context
> structure is defined::
>
> struct netfs_i_context {
> + struct inode inode;
> const struct netfs_request_ops *ops;
> - struct fscache_cookie *cache;
> + struct fscache_cookie *cache;
> };
>
> -A network filesystem that wants to use netfs lib must place one of these
> -directly after the VFS ``struct inode`` it allocates, usually as part of its
> -own struct. This can be done in a way similar to the following::
> +A network filesystem that wants to use netfs lib must place one of these in its
> +inode wrapper struct instead of the VFS ``struct inode``. This can be done in
> +a way similar to the following::
>
> struct my_inode {
> - struct {
> - /* These must be contiguous */
> - struct inode vfs_inode;
> - struct netfs_i_context netfs_ctx;
> - };
> + struct netfs_i_context nic; /* Netfslib context and vfs inode */
> ...
> };
>
> -This allows netfslib to find its state by simple offset from the inode pointer,
> -thereby allowing the netfslib helper functions to be pointed to directly by the
> -VFS/VM operation tables.
> +This allows netfslib to find its state by using ``container_of()`` from the
> +inode pointer, thereby allowing the netfslib helper functions to be pointed to
> +directly by the VFS/VM operation tables.
>
> The structure contains the following fields:
>
> + * ``inode``
> +
> + The VFS inode structure.
> +
> * ``ops``
>
> The set of operations provided by the network filesystem to netfslib.
> diff --git a/fs/9p/cache.c b/fs/9p/cache.c
> index 1c8dc696d516..0f9b56ab7548 100644
> --- a/fs/9p/cache.c
> +++ b/fs/9p/cache.c
> @@ -62,12 +62,12 @@ void v9fs_cache_inode_get_cookie(struct inode *inode)
> version = cpu_to_le32(v9inode->qid.version);
> path = cpu_to_le64(v9inode->qid.path);
> v9ses = v9fs_inode2v9ses(inode);
> - v9inode->netfs_ctx.cache =
> + v9inode->nic.cache =
> fscache_acquire_cookie(v9fs_session_cache(v9ses),
> 0,
> &path, sizeof(path),
> &version, sizeof(version),
> - i_size_read(&v9inode->vfs_inode));
> + i_size_read(&v9inode->nic.inode));
>
> p9_debug(P9_DEBUG_FSC, "inode %p get cookie %p\n",
> inode, v9fs_inode_cookie(v9inode));
> diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
> index e28ddf763b3b..df706c6830c6 100644
> --- a/fs/9p/v9fs.c
> +++ b/fs/9p/v9fs.c
> @@ -625,7 +625,7 @@ static void v9fs_inode_init_once(void *foo)
> struct v9fs_inode *v9inode = (struct v9fs_inode *)foo;
>
> memset(&v9inode->qid, 0, sizeof(v9inode->qid));
> - inode_init_once(&v9inode->vfs_inode);
> + inode_init_once(&v9inode->nic.inode);
> }
>
> /**
> diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
> index ec0e8df3b2eb..b172e6e1a537 100644
> --- a/fs/9p/v9fs.h
> +++ b/fs/9p/v9fs.h
> @@ -109,11 +109,7 @@ struct v9fs_session_info {
> #define V9FS_INO_INVALID_ATTR 0x01
>
> struct v9fs_inode {
> - struct {
> - /* These must be contiguous */
> - struct inode vfs_inode; /* the VFS's inode record */
> - struct netfs_i_context netfs_ctx; /* Netfslib context */
> - };
> + struct netfs_i_context nic; /* Netfslib context and vfs inode */
> struct p9_qid qid;
> unsigned int cache_validity;
> struct p9_fid *writeback_fid;
> @@ -122,13 +118,13 @@ struct v9fs_inode {
>
> static inline struct v9fs_inode *V9FS_I(const struct inode *inode)
> {
> - return container_of(inode, struct v9fs_inode, vfs_inode);
> + return container_of(inode, struct v9fs_inode, nic.inode);
> }
>
> static inline struct fscache_cookie *v9fs_inode_cookie(struct v9fs_inode *v9inode)
> {
> #ifdef CONFIG_9P_FSCACHE
> - return netfs_i_cookie(&v9inode->vfs_inode);
> + return netfs_i_cookie(&v9inode->nic.inode);
> #else
> return NULL;
> #endif
> diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
> index 002c482794dc..191781bd77dc 100644
> --- a/fs/9p/vfs_addr.c
> +++ b/fs/9p/vfs_addr.c
> @@ -140,7 +140,7 @@ static void v9fs_write_to_cache_done(void *priv, ssize_t transferred_or_error,
> transferred_or_error != -ENOBUFS) {
> version = cpu_to_le32(v9inode->qid.version);
> fscache_invalidate(v9fs_inode_cookie(v9inode), &version,
> - i_size_read(&v9inode->vfs_inode), 0);
> + i_size_read(&v9inode->nic.inode), 0);
> }
> }
>
> diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
> index 55367ecb9442..82c8489e86b6 100644
> --- a/fs/9p/vfs_inode.c
> +++ b/fs/9p/vfs_inode.c
> @@ -234,7 +234,7 @@ struct inode *v9fs_alloc_inode(struct super_block *sb)
> v9inode->writeback_fid = NULL;
> v9inode->cache_validity = 0;
> mutex_init(&v9inode->v_mutex);
> - return &v9inode->vfs_inode;
> + return &v9inode->nic.inode;
> }
>
> /**
> diff --git a/fs/afs/callback.c b/fs/afs/callback.c
> index 1b4d5809808d..10ae6b6dad44 100644
> --- a/fs/afs/callback.c
> +++ b/fs/afs/callback.c
> @@ -30,7 +30,7 @@ void afs_invalidate_mmap_work(struct work_struct *work)
> {
> struct afs_vnode *vnode = container_of(work, struct afs_vnode, cb_work);
>
> - unmap_mapping_pages(vnode->vfs_inode.i_mapping, 0, 0, false);
> + unmap_mapping_pages(vnode->nic.inode.i_mapping, 0, 0, false);
> }
>
> void afs_server_init_callback_work(struct work_struct *work)
> diff --git a/fs/afs/dir.c b/fs/afs/dir.c
> index 932e61e28e5d..55455bdec230 100644
> --- a/fs/afs/dir.c
> +++ b/fs/afs/dir.c
> @@ -109,7 +109,7 @@ struct afs_lookup_cookie {
> */
> static void afs_dir_read_cleanup(struct afs_read *req)
> {
> - struct address_space *mapping = req->vnode->vfs_inode.i_mapping;
> + struct address_space *mapping = req->vnode->nic.inode.i_mapping;
> struct folio *folio;
> pgoff_t last = req->nr_pages - 1;
>
> @@ -153,7 +153,7 @@ static bool afs_dir_check_folio(struct afs_vnode *dvnode, struct folio *folio,
> block = kmap_local_folio(folio, offset);
> if (block->hdr.magic != AFS_DIR_MAGIC) {
> printk("kAFS: %s(%lx): [%llx] bad magic %zx/%zx is %04hx\n",
> - __func__, dvnode->vfs_inode.i_ino,
> + __func__, dvnode->nic.inode.i_ino,
> pos, offset, size, ntohs(block->hdr.magic));
> trace_afs_dir_check_failed(dvnode, pos + offset, i_size);
> kunmap_local(block);
> @@ -183,7 +183,7 @@ static bool afs_dir_check_folio(struct afs_vnode *dvnode, struct folio *folio,
> static void afs_dir_dump(struct afs_vnode *dvnode, struct afs_read *req)
> {
> union afs_xdr_dir_block *block;
> - struct address_space *mapping = dvnode->vfs_inode.i_mapping;
> + struct address_space *mapping = dvnode->nic.inode.i_mapping;
> struct folio *folio;
> pgoff_t last = req->nr_pages - 1;
> size_t offset, size;
> @@ -217,7 +217,7 @@ static void afs_dir_dump(struct afs_vnode *dvnode, struct afs_read *req)
> */
> static int afs_dir_check(struct afs_vnode *dvnode, struct afs_read *req)
> {
> - struct address_space *mapping = dvnode->vfs_inode.i_mapping;
> + struct address_space *mapping = dvnode->nic.inode.i_mapping;
> struct folio *folio;
> pgoff_t last = req->nr_pages - 1;
> int ret = 0;
> @@ -269,7 +269,7 @@ static int afs_dir_open(struct inode *inode, struct file *file)
> static struct afs_read *afs_read_dir(struct afs_vnode *dvnode, struct key *key)
> __acquires(&dvnode->validate_lock)
> {
> - struct address_space *mapping = dvnode->vfs_inode.i_mapping;
> + struct address_space *mapping = dvnode->nic.inode.i_mapping;
> struct afs_read *req;
> loff_t i_size;
> int nr_pages, i;
> @@ -287,7 +287,7 @@ static struct afs_read *afs_read_dir(struct afs_vnode *dvnode, struct key *key)
> req->cleanup = afs_dir_read_cleanup;
>
> expand:
> - i_size = i_size_read(&dvnode->vfs_inode);
> + i_size = i_size_read(&dvnode->nic.inode);
> if (i_size < 2048) {
> ret = afs_bad(dvnode, afs_file_error_dir_small);
> goto error;
> @@ -305,7 +305,7 @@ static struct afs_read *afs_read_dir(struct afs_vnode *dvnode, struct key *key)
> req->actual_len = i_size; /* May change */
> req->len = nr_pages * PAGE_SIZE; /* We can ask for more than there is */
> req->data_version = dvnode->status.data_version; /* May change */
> - iov_iter_xarray(&req->def_iter, READ, &dvnode->vfs_inode.i_mapping->i_pages,
> + iov_iter_xarray(&req->def_iter, READ, &dvnode->nic.inode.i_mapping->i_pages,
> 0, i_size);
> req->iter = &req->def_iter;
>
> @@ -894,7 +894,7 @@ static struct inode *afs_do_lookup(struct inode *dir, struct dentry *dentry,
>
> out_op:
> if (op->error == 0) {
> - inode = &op->file[1].vnode->vfs_inode;
> + inode = &op->file[1].vnode->nic.inode;
> op->file[1].vnode = NULL;
> }
>
> @@ -1136,7 +1136,7 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags)
> afs_stat_v(dir, n_reval);
>
> /* search the directory for this vnode */
> - ret = afs_do_lookup_one(&dir->vfs_inode, dentry, &fid, key, &dir_version);
> + ret = afs_do_lookup_one(&dir->nic.inode, dentry, &fid, key, &dir_version);
> switch (ret) {
> case 0:
> /* the filename maps to something */
> @@ -1167,7 +1167,7 @@ static int afs_d_revalidate(struct dentry *dentry, unsigned int flags)
> _debug("%pd: file deleted (uq %u -> %u I:%u)",
> dentry, fid.unique,
> vnode->fid.unique,
> - vnode->vfs_inode.i_generation);
> + vnode->nic.inode.i_generation);
> goto not_found;
> }
> goto out_valid;
> @@ -1365,7 +1365,7 @@ static void afs_dir_remove_subdir(struct dentry *dentry)
> if (d_really_is_positive(dentry)) {
> struct afs_vnode *vnode = AFS_FS_I(d_inode(dentry));
>
> - clear_nlink(&vnode->vfs_inode);
> + clear_nlink(&vnode->nic.inode);
> set_bit(AFS_VNODE_DELETED, &vnode->flags);
> clear_bit(AFS_VNODE_CB_PROMISED, &vnode->flags);
> clear_bit(AFS_VNODE_DIR_VALID, &vnode->flags);
> @@ -1484,8 +1484,8 @@ static void afs_dir_remove_link(struct afs_operation *op)
> /* Already done */
> } else if (test_bit(AFS_VNODE_DIR_VALID, &dvnode->flags)) {
> write_seqlock(&vnode->cb_lock);
> - drop_nlink(&vnode->vfs_inode);
> - if (vnode->vfs_inode.i_nlink == 0) {
> + drop_nlink(&vnode->nic.inode);
> + if (vnode->nic.inode.i_nlink == 0) {
> set_bit(AFS_VNODE_DELETED, &vnode->flags);
> __afs_break_callback(vnode, afs_cb_break_for_unlink);
> }
> @@ -1501,7 +1501,7 @@ static void afs_dir_remove_link(struct afs_operation *op)
> op->error = ret;
> }
>
> - _debug("nlink %d [val %d]", vnode->vfs_inode.i_nlink, op->error);
> + _debug("nlink %d [val %d]", vnode->nic.inode.i_nlink, op->error);
> }
>
> static void afs_unlink_success(struct afs_operation *op)
> @@ -1677,8 +1677,8 @@ static void afs_link_success(struct afs_operation *op)
> afs_update_dentry_version(op, dvp, op->dentry);
> if (op->dentry_2->d_parent == op->dentry->d_parent)
> afs_update_dentry_version(op, dvp, op->dentry_2);
> - ihold(&vp->vnode->vfs_inode);
> - d_instantiate(op->dentry, &vp->vnode->vfs_inode);
> + ihold(&vp->vnode->nic.inode);
> + d_instantiate(op->dentry, &vp->vnode->nic.inode);
> }
>
> static void afs_link_put(struct afs_operation *op)
> diff --git a/fs/afs/dir_edit.c b/fs/afs/dir_edit.c
> index d98e109ecee9..dc29c93d76d3 100644
> --- a/fs/afs/dir_edit.c
> +++ b/fs/afs/dir_edit.c
> @@ -109,7 +109,7 @@ static void afs_clear_contig_bits(union afs_xdr_dir_block *block,
> */
> static struct folio *afs_dir_get_folio(struct afs_vnode *vnode, pgoff_t index)
> {
> - struct address_space *mapping = vnode->vfs_inode.i_mapping;
> + struct address_space *mapping = vnode->nic.inode.i_mapping;
> struct folio *folio;
>
> folio = __filemap_get_folio(mapping, index,
> @@ -216,7 +216,7 @@ void afs_edit_dir_add(struct afs_vnode *vnode,
>
> _enter(",,{%d,%s},", name->len, name->name);
>
> - i_size = i_size_read(&vnode->vfs_inode);
> + i_size = i_size_read(&vnode->nic.inode);
> if (i_size > AFS_DIR_BLOCK_SIZE * AFS_DIR_MAX_BLOCKS ||
> (i_size & (AFS_DIR_BLOCK_SIZE - 1))) {
> clear_bit(AFS_VNODE_DIR_VALID, &vnode->flags);
> @@ -336,7 +336,7 @@ void afs_edit_dir_add(struct afs_vnode *vnode,
> if (b < AFS_DIR_BLOCKS_WITH_CTR)
> meta->meta.alloc_ctrs[b] -= need_slots;
>
> - inode_inc_iversion_raw(&vnode->vfs_inode);
> + inode_inc_iversion_raw(&vnode->nic.inode);
> afs_stat_v(vnode, n_dir_cr);
> _debug("Insert %s in %u[%u]", name->name, b, slot);
>
> @@ -383,7 +383,7 @@ void afs_edit_dir_remove(struct afs_vnode *vnode,
>
> _enter(",,{%d,%s},", name->len, name->name);
>
> - i_size = i_size_read(&vnode->vfs_inode);
> + i_size = i_size_read(&vnode->nic.inode);
> if (i_size < AFS_DIR_BLOCK_SIZE ||
> i_size > AFS_DIR_BLOCK_SIZE * AFS_DIR_MAX_BLOCKS ||
> (i_size & (AFS_DIR_BLOCK_SIZE - 1))) {
> @@ -463,7 +463,7 @@ void afs_edit_dir_remove(struct afs_vnode *vnode,
> if (b < AFS_DIR_BLOCKS_WITH_CTR)
> meta->meta.alloc_ctrs[b] += need_slots;
>
> - inode_set_iversion_raw(&vnode->vfs_inode, vnode->status.data_version);
> + inode_set_iversion_raw(&vnode->nic.inode, vnode->status.data_version);
> afs_stat_v(vnode, n_dir_rm);
> _debug("Remove %s from %u[%u]", name->name, b, slot);
>
> diff --git a/fs/afs/dir_silly.c b/fs/afs/dir_silly.c
> index 45cfd50a9521..42effe187ca1 100644
> --- a/fs/afs/dir_silly.c
> +++ b/fs/afs/dir_silly.c
> @@ -131,7 +131,7 @@ int afs_sillyrename(struct afs_vnode *dvnode, struct afs_vnode *vnode,
> goto out;
> } while (!d_is_negative(sdentry));
>
> - ihold(&vnode->vfs_inode);
> + ihold(&vnode->nic.inode);
>
> ret = afs_do_silly_rename(dvnode, vnode, dentry, sdentry, key);
> switch (ret) {
> @@ -148,7 +148,7 @@ int afs_sillyrename(struct afs_vnode *dvnode, struct afs_vnode *vnode,
> d_drop(sdentry);
> }
>
> - iput(&vnode->vfs_inode);
> + iput(&vnode->nic.inode);
> dput(sdentry);
> out:
> _leave(" = %d", ret);
> diff --git a/fs/afs/file.c b/fs/afs/file.c
> index b9ca72fbbcf9..23e4d981ddfa 100644
> --- a/fs/afs/file.c
> +++ b/fs/afs/file.c
> @@ -194,7 +194,7 @@ int afs_release(struct inode *inode, struct file *file)
> afs_put_wb_key(af->wb);
>
> if ((file->f_mode & FMODE_WRITE)) {
> - i_size = i_size_read(&vnode->vfs_inode);
> + i_size = i_size_read(&vnode->nic.inode);
> afs_set_cache_aux(vnode, &aux);
> fscache_unuse_cookie(afs_vnode_cache(vnode), &aux, &i_size);
> } else {
> @@ -325,7 +325,7 @@ static void afs_issue_read(struct netfs_io_subrequest *subreq)
> fsreq->iter = &fsreq->def_iter;
>
> iov_iter_xarray(&fsreq->def_iter, READ,
> - &fsreq->vnode->vfs_inode.i_mapping->i_pages,
> + &fsreq->vnode->nic.inode.i_mapping->i_pages,
> fsreq->pos, fsreq->len);
>
> afs_fetch_data(fsreq->vnode, fsreq);
> diff --git a/fs/afs/fs_operation.c b/fs/afs/fs_operation.c
> index d222dfbe976b..bf60381485f1 100644
> --- a/fs/afs/fs_operation.c
> +++ b/fs/afs/fs_operation.c
> @@ -232,14 +232,14 @@ int afs_put_operation(struct afs_operation *op)
> if (op->file[1].modification && op->file[1].vnode != op->file[0].vnode)
> clear_bit(AFS_VNODE_MODIFYING, &op->file[1].vnode->flags);
> if (op->file[0].put_vnode)
> - iput(&op->file[0].vnode->vfs_inode);
> + iput(&op->file[0].vnode->nic.inode);
> if (op->file[1].put_vnode)
> - iput(&op->file[1].vnode->vfs_inode);
> + iput(&op->file[1].vnode->nic.inode);
>
> if (op->more_files) {
> for (i = 0; i < op->nr_files - 2; i++)
> if (op->more_files[i].put_vnode)
> - iput(&op->more_files[i].vnode->vfs_inode);
> + iput(&op->more_files[i].vnode->nic.inode);
> kfree(op->more_files);
> }
>
> diff --git a/fs/afs/inode.c b/fs/afs/inode.c
> index 2fe402483ad5..7827ef333194 100644
> --- a/fs/afs/inode.c
> +++ b/fs/afs/inode.c
> @@ -58,7 +58,7 @@ static noinline void dump_vnode(struct afs_vnode *vnode, struct afs_vnode *paren
> */
> static void afs_set_netfs_context(struct afs_vnode *vnode)
> {
> - netfs_i_context_init(&vnode->vfs_inode, &afs_req_ops);
> + netfs_i_context_init(&vnode->nic.inode, &afs_req_ops);
> }
>
> /*
> @@ -96,7 +96,7 @@ static int afs_inode_init_from_status(struct afs_operation *op,
> inode->i_flags |= S_NOATIME;
> inode->i_uid = make_kuid(&init_user_ns, status->owner);
> inode->i_gid = make_kgid(&init_user_ns, status->group);
> - set_nlink(&vnode->vfs_inode, status->nlink);
> + set_nlink(&vnode->nic.inode, status->nlink);
>
> switch (status->type) {
> case AFS_FTYPE_FILE:
> @@ -139,7 +139,7 @@ static int afs_inode_init_from_status(struct afs_operation *op,
> afs_set_netfs_context(vnode);
>
> vnode->invalid_before = status->data_version;
> - inode_set_iversion_raw(&vnode->vfs_inode, status->data_version);
> + inode_set_iversion_raw(&vnode->nic.inode, status->data_version);
>
> if (!vp->scb.have_cb) {
> /* it's a symlink we just created (the fileserver
> @@ -163,7 +163,7 @@ static void afs_apply_status(struct afs_operation *op,
> {
> struct afs_file_status *status = &vp->scb.status;
> struct afs_vnode *vnode = vp->vnode;
> - struct inode *inode = &vnode->vfs_inode;
> + struct inode *inode = &vnode->nic.inode;
> struct timespec64 t;
> umode_t mode;
> bool data_changed = false;
> @@ -246,7 +246,7 @@ static void afs_apply_status(struct afs_operation *op,
> * idea of what the size should be that's not the same as
> * what's on the server.
> */
> - vnode->netfs_ctx.remote_i_size = status->size;
> + vnode->nic.remote_i_size = status->size;
> if (change_size) {
> afs_set_i_size(vnode, status->size);
> inode->i_ctime = t;
> @@ -289,7 +289,7 @@ void afs_vnode_commit_status(struct afs_operation *op, struct afs_vnode_param *v
> */
> if (vp->scb.status.abort_code == VNOVNODE) {
> set_bit(AFS_VNODE_DELETED, &vnode->flags);
> - clear_nlink(&vnode->vfs_inode);
> + clear_nlink(&vnode->nic.inode);
> __afs_break_callback(vnode, afs_cb_break_for_deleted);
> op->flags &= ~AFS_OPERATION_DIR_CONFLICT;
> }
> @@ -306,8 +306,8 @@ void afs_vnode_commit_status(struct afs_operation *op, struct afs_vnode_param *v
> if (vp->scb.have_cb)
> afs_apply_callback(op, vp);
> } else if (vp->op_unlinked && !(op->flags & AFS_OPERATION_DIR_CONFLICT)) {
> - drop_nlink(&vnode->vfs_inode);
> - if (vnode->vfs_inode.i_nlink == 0) {
> + drop_nlink(&vnode->nic.inode);
> + if (vnode->nic.inode.i_nlink == 0) {
> set_bit(AFS_VNODE_DELETED, &vnode->flags);
> __afs_break_callback(vnode, afs_cb_break_for_deleted);
> }
> @@ -326,7 +326,7 @@ static void afs_fetch_status_success(struct afs_operation *op)
> struct afs_vnode *vnode = vp->vnode;
> int ret;
>
> - if (vnode->vfs_inode.i_state & I_NEW) {
> + if (vnode->nic.inode.i_state & I_NEW) {
> ret = afs_inode_init_from_status(op, vp, vnode);
> op->error = ret;
> if (ret == 0)
> @@ -430,7 +430,7 @@ static void afs_get_inode_cache(struct afs_vnode *vnode)
> struct afs_vnode_cache_aux aux;
>
> if (vnode->status.type != AFS_FTYPE_FILE) {
> - vnode->netfs_ctx.cache = NULL;
> + vnode->nic.cache = NULL;
> return;
> }
>
> @@ -457,7 +457,7 @@ static void afs_get_inode_cache(struct afs_vnode *vnode)
> struct inode *afs_iget(struct afs_operation *op, struct afs_vnode_param *vp)
> {
> struct afs_vnode_param *dvp = &op->file[0];
> - struct super_block *sb = dvp->vnode->vfs_inode.i_sb;
> + struct super_block *sb = dvp->vnode->nic.inode.i_sb;
> struct afs_vnode *vnode;
> struct inode *inode;
> int ret;
> @@ -582,10 +582,10 @@ static void afs_zap_data(struct afs_vnode *vnode)
> /* nuke all the non-dirty pages that aren't locked, mapped or being
> * written back in a regular file and completely discard the pages in a
> * directory or symlink */
> - if (S_ISREG(vnode->vfs_inode.i_mode))
> - invalidate_remote_inode(&vnode->vfs_inode);
> + if (S_ISREG(vnode->nic.inode.i_mode))
> + invalidate_remote_inode(&vnode->nic.inode);
> else
> - invalidate_inode_pages2(vnode->vfs_inode.i_mapping);
> + invalidate_inode_pages2(vnode->nic.inode.i_mapping);
> }
>
> /*
> @@ -683,8 +683,8 @@ int afs_validate(struct afs_vnode *vnode, struct key *key)
> key_serial(key));
>
> if (unlikely(test_bit(AFS_VNODE_DELETED, &vnode->flags))) {
> - if (vnode->vfs_inode.i_nlink)
> - clear_nlink(&vnode->vfs_inode);
> + if (vnode->nic.inode.i_nlink)
> + clear_nlink(&vnode->nic.inode);
> goto valid;
> }
>
> @@ -814,7 +814,7 @@ void afs_evict_inode(struct inode *inode)
> static void afs_setattr_success(struct afs_operation *op)
> {
> struct afs_vnode_param *vp = &op->file[0];
> - struct inode *inode = &vp->vnode->vfs_inode;
> + struct inode *inode = &vp->vnode->nic.inode;
> loff_t old_i_size = i_size_read(inode);
>
> op->setattr.old_i_size = old_i_size;
> @@ -831,7 +831,7 @@ static void afs_setattr_success(struct afs_operation *op)
> static void afs_setattr_edit_file(struct afs_operation *op)
> {
> struct afs_vnode_param *vp = &op->file[0];
> - struct inode *inode = &vp->vnode->vfs_inode;
> + struct inode *inode = &vp->vnode->nic.inode;
>
> if (op->setattr.attr->ia_valid & ATTR_SIZE) {
> loff_t size = op->setattr.attr->ia_size;
> @@ -863,7 +863,7 @@ int afs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
> ATTR_MTIME | ATTR_MTIME_SET | ATTR_TIMES_SET | ATTR_TOUCH;
> struct afs_operation *op;
> struct afs_vnode *vnode = AFS_FS_I(d_inode(dentry));
> - struct inode *inode = &vnode->vfs_inode;
> + struct inode *inode = &vnode->nic.inode;
> loff_t i_size;
> int ret;
>
> diff --git a/fs/afs/internal.h b/fs/afs/internal.h
> index 7b7ef945dc78..f9d513bbd95d 100644
> --- a/fs/afs/internal.h
> +++ b/fs/afs/internal.h
> @@ -619,12 +619,7 @@ enum afs_lock_state {
> * leak from one inode to another.
> */
> struct afs_vnode {
> - struct {
> - /* These must be contiguous */
> - struct inode vfs_inode; /* the VFS's inode record */
> - struct netfs_i_context netfs_ctx; /* Netfslib context */
> - };
> -
> + struct netfs_i_context nic; /* Netfslib context and vfs inode */
> struct afs_volume *volume; /* volume on which vnode resides */
> struct afs_fid fid; /* the file identifier for this inode */
> struct afs_file_status status; /* AFS status info for this file */
> @@ -675,7 +670,7 @@ struct afs_vnode {
> static inline struct fscache_cookie *afs_vnode_cache(struct afs_vnode *vnode)
> {
> #ifdef CONFIG_AFS_FSCACHE
> - return netfs_i_cookie(&vnode->vfs_inode);
> + return netfs_i_cookie(&vnode->nic.inode);
> #else
> return NULL;
> #endif
> @@ -685,7 +680,7 @@ static inline void afs_vnode_set_cache(struct afs_vnode *vnode,
> struct fscache_cookie *cookie)
> {
> #ifdef CONFIG_AFS_FSCACHE
> - vnode->netfs_ctx.cache = cookie;
> + vnode->nic.cache = cookie;
> #endif
> }
>
> @@ -892,7 +887,7 @@ static inline void afs_invalidate_cache(struct afs_vnode *vnode, unsigned int fl
>
> afs_set_cache_aux(vnode, &aux);
> fscache_invalidate(afs_vnode_cache(vnode), &aux,
> - i_size_read(&vnode->vfs_inode), flags);
> + i_size_read(&vnode->nic.inode), flags);
> }
>
> /*
> @@ -1217,7 +1212,7 @@ static inline struct afs_net *afs_i2net(struct inode *inode)
>
> static inline struct afs_net *afs_v2net(struct afs_vnode *vnode)
> {
> - return afs_i2net(&vnode->vfs_inode);
> + return afs_i2net(&vnode->nic.inode);
> }
>
> static inline struct afs_net *afs_sock2net(struct sock *sk)
> @@ -1593,12 +1588,12 @@ extern void yfs_fs_store_opaque_acl2(struct afs_operation *);
> */
> static inline struct afs_vnode *AFS_FS_I(struct inode *inode)
> {
> - return container_of(inode, struct afs_vnode, vfs_inode);
> + return container_of(inode, struct afs_vnode, nic.inode);
> }
>
> static inline struct inode *AFS_VNODE_TO_I(struct afs_vnode *vnode)
> {
> - return &vnode->vfs_inode;
> + return &vnode->nic.inode;
> }
>
> /*
> @@ -1621,8 +1616,8 @@ static inline void afs_update_dentry_version(struct afs_operation *op,
> */
> static inline void afs_set_i_size(struct afs_vnode *vnode, u64 size)
> {
> - i_size_write(&vnode->vfs_inode, size);
> - vnode->vfs_inode.i_blocks = ((size + 1023) >> 10) << 1;
> + i_size_write(&vnode->nic.inode, size);
> + vnode->nic.inode.i_blocks = ((size + 1023) >> 10) << 1;
> }
>
> /*
> diff --git a/fs/afs/super.c b/fs/afs/super.c
> index 1fea195b0b27..1c5ddd80860a 100644
> --- a/fs/afs/super.c
> +++ b/fs/afs/super.c
> @@ -659,7 +659,7 @@ static void afs_i_init_once(void *_vnode)
> struct afs_vnode *vnode = _vnode;
>
> memset(vnode, 0, sizeof(*vnode));
> - inode_init_once(&vnode->vfs_inode);
> + inode_init_once(&vnode->nic.inode);
> mutex_init(&vnode->io_lock);
> init_rwsem(&vnode->validate_lock);
> spin_lock_init(&vnode->wb_lock);
> @@ -700,8 +700,8 @@ static struct inode *afs_alloc_inode(struct super_block *sb)
> init_rwsem(&vnode->rmdir_lock);
> INIT_WORK(&vnode->cb_work, afs_invalidate_mmap_work);
>
> - _leave(" = %p", &vnode->vfs_inode);
> - return &vnode->vfs_inode;
> + _leave(" = %p", &vnode->nic.inode);
> + return &vnode->nic.inode;
> }
>
> static void afs_free_inode(struct inode *inode)
> diff --git a/fs/afs/write.c b/fs/afs/write.c
> index 4763132ca57e..1ad10e393c3a 100644
> --- a/fs/afs/write.c
> +++ b/fs/afs/write.c
> @@ -146,10 +146,10 @@ int afs_write_end(struct file *file, struct address_space *mapping,
>
> write_end_pos = pos + copied;
>
> - i_size = i_size_read(&vnode->vfs_inode);
> + i_size = i_size_read(&vnode->nic.inode);
> if (write_end_pos > i_size) {
> write_seqlock(&vnode->cb_lock);
> - i_size = i_size_read(&vnode->vfs_inode);
> + i_size = i_size_read(&vnode->nic.inode);
> if (write_end_pos > i_size)
> afs_set_i_size(vnode, write_end_pos);
> write_sequnlock(&vnode->cb_lock);
> @@ -257,7 +257,7 @@ static void afs_redirty_pages(struct writeback_control *wbc,
> */
> static void afs_pages_written_back(struct afs_vnode *vnode, loff_t start, unsigned int len)
> {
> - struct address_space *mapping = vnode->vfs_inode.i_mapping;
> + struct address_space *mapping = vnode->nic.inode.i_mapping;
> struct folio *folio;
> pgoff_t end;
>
> @@ -354,7 +354,6 @@ static const struct afs_operation_ops afs_store_data_operation = {
> static int afs_store_data(struct afs_vnode *vnode, struct iov_iter *iter, loff_t pos,
> bool laundering)
> {
> - struct netfs_i_context *ictx = &vnode->netfs_ctx;
> struct afs_operation *op;
> struct afs_wb_key *wbk = NULL;
> loff_t size = iov_iter_count(iter);
> @@ -385,9 +384,9 @@ static int afs_store_data(struct afs_vnode *vnode, struct iov_iter *iter, loff_t
> op->store.write_iter = iter;
> op->store.pos = pos;
> op->store.size = size;
> - op->store.i_size = max(pos + size, ictx->remote_i_size);
> + op->store.i_size = max(pos + size, vnode->nic.remote_i_size);
> op->store.laundering = laundering;
> - op->mtime = vnode->vfs_inode.i_mtime;
> + op->mtime = vnode->nic.inode.i_mtime;
> op->flags |= AFS_OPERATION_UNINTR;
> op->ops = &afs_store_data_operation;
>
> @@ -554,7 +553,7 @@ static ssize_t afs_write_back_from_locked_folio(struct address_space *mapping,
> struct iov_iter iter;
> unsigned long priv;
> unsigned int offset, to, len, max_len;
> - loff_t i_size = i_size_read(&vnode->vfs_inode);
> + loff_t i_size = i_size_read(&vnode->nic.inode);
> bool new_content = test_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags);
> bool caching = fscache_cookie_enabled(afs_vnode_cache(vnode));
> long count = wbc->nr_to_write;
> @@ -844,7 +843,7 @@ ssize_t afs_file_write(struct kiocb *iocb, struct iov_iter *from)
> _enter("{%llx:%llu},{%zu},",
> vnode->fid.vid, vnode->fid.vnode, count);
>
> - if (IS_SWAPFILE(&vnode->vfs_inode)) {
> + if (IS_SWAPFILE(&vnode->nic.inode)) {
> printk(KERN_INFO
> "AFS: Attempt to write to active swap file!\n");
> return -EBUSY;
> @@ -957,8 +956,8 @@ void afs_prune_wb_keys(struct afs_vnode *vnode)
> /* Discard unused keys */
> spin_lock(&vnode->wb_lock);
>
> - if (!mapping_tagged(&vnode->vfs_inode.i_data, PAGECACHE_TAG_WRITEBACK) &&
> - !mapping_tagged(&vnode->vfs_inode.i_data, PAGECACHE_TAG_DIRTY)) {
> + if (!mapping_tagged(&vnode->nic.inode.i_data, PAGECACHE_TAG_WRITEBACK) &&
> + !mapping_tagged(&vnode->nic.inode.i_data, PAGECACHE_TAG_DIRTY)) {
> list_for_each_entry_safe(wbk, tmp, &vnode->wb_keys, vnode_link) {
> if (refcount_read(&wbk->usage) == 1)
> list_move(&wbk->vnode_link, &graveyard);
> @@ -1033,6 +1032,6 @@ static void afs_write_to_cache(struct afs_vnode *vnode,
> bool caching)
> {
> fscache_write_to_cache(afs_vnode_cache(vnode),
> - vnode->vfs_inode.i_mapping, start, len, i_size,
> + vnode->nic.inode.i_mapping, start, len, i_size,
> afs_write_to_cache_done, vnode, caching);
> }
> diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
> index ee8c1b099c4f..7cd5a4487eb1 100644
> --- a/fs/ceph/addr.c
> +++ b/fs/ceph/addr.c
> @@ -1789,7 +1789,7 @@ enum {
> static int __ceph_pool_perm_get(struct ceph_inode_info *ci,
> s64 pool, struct ceph_string *pool_ns)
> {
> - struct ceph_fs_client *fsc = ceph_inode_to_client(&ci->vfs_inode);
> + struct ceph_fs_client *fsc = ceph_inode_to_client(&ci->nic.inode);
> struct ceph_mds_client *mdsc = fsc->mdsc;
> struct ceph_osd_request *rd_req = NULL, *wr_req = NULL;
> struct rb_node **p, *parent;
> @@ -1904,7 +1904,7 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci,
> 0, false, true);
> err = ceph_osdc_start_request(&fsc->client->osdc, rd_req, false);
>
> - wr_req->r_mtime = ci->vfs_inode.i_mtime;
> + wr_req->r_mtime = ci->nic.inode.i_mtime;
> err2 = ceph_osdc_start_request(&fsc->client->osdc, wr_req, false);
>
> if (!err)
> diff --git a/fs/ceph/cache.c b/fs/ceph/cache.c
> index ddea99922073..d983513ffc7f 100644
> --- a/fs/ceph/cache.c
> +++ b/fs/ceph/cache.c
> @@ -29,9 +29,9 @@ void ceph_fscache_register_inode_cookie(struct inode *inode)
> if (!(inode->i_state & I_NEW))
> return;
>
> - WARN_ON_ONCE(ci->netfs_ctx.cache);
> + WARN_ON_ONCE(ci->nic.cache);
>
> - ci->netfs_ctx.cache =
> + ci->nic.cache =
> fscache_acquire_cookie(fsc->fscache, 0,
> &ci->i_vino, sizeof(ci->i_vino),
> &ci->i_version, sizeof(ci->i_version),
> diff --git a/fs/ceph/cache.h b/fs/ceph/cache.h
> index 7255b790a4c1..cd74390983ad 100644
> --- a/fs/ceph/cache.h
> +++ b/fs/ceph/cache.h
> @@ -28,7 +28,7 @@ void ceph_fscache_invalidate(struct inode *inode, bool dio_write);
>
> static inline struct fscache_cookie *ceph_fscache_cookie(struct ceph_inode_info *ci)
> {
> - return netfs_i_cookie(&ci->vfs_inode);
> + return netfs_i_cookie(&ci->nic.inode);
> }
>
> static inline void ceph_fscache_resize(struct inode *inode, loff_t to)
> diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
> index 5c14ef04e474..1ab952b8fa69 100644
> --- a/fs/ceph/caps.c
> +++ b/fs/ceph/caps.c
> @@ -492,7 +492,7 @@ static void __cap_set_timeouts(struct ceph_mds_client *mdsc,
> struct ceph_mount_options *opt = mdsc->fsc->mount_options;
> ci->i_hold_caps_max = round_jiffies(jiffies +
> opt->caps_wanted_delay_max * HZ);
> - dout("__cap_set_timeouts %p %lu\n", &ci->vfs_inode,
> + dout("__cap_set_timeouts %p %lu\n", &ci->nic.inode,
> ci->i_hold_caps_max - jiffies);
> }
>
> @@ -507,7 +507,7 @@ static void __cap_set_timeouts(struct ceph_mds_client *mdsc,
> static void __cap_delay_requeue(struct ceph_mds_client *mdsc,
> struct ceph_inode_info *ci)
> {
> - dout("__cap_delay_requeue %p flags 0x%lx at %lu\n", &ci->vfs_inode,
> + dout("__cap_delay_requeue %p flags 0x%lx at %lu\n", &ci->nic.inode,
> ci->i_ceph_flags, ci->i_hold_caps_max);
> if (!mdsc->stopping) {
> spin_lock(&mdsc->cap_delay_lock);
> @@ -531,7 +531,7 @@ static void __cap_delay_requeue(struct ceph_mds_client *mdsc,
> static void __cap_delay_requeue_front(struct ceph_mds_client *mdsc,
> struct ceph_inode_info *ci)
> {
> - dout("__cap_delay_requeue_front %p\n", &ci->vfs_inode);
> + dout("__cap_delay_requeue_front %p\n", &ci->nic.inode);
> spin_lock(&mdsc->cap_delay_lock);
> ci->i_ceph_flags |= CEPH_I_FLUSH;
> if (!list_empty(&ci->i_cap_delay_list))
> @@ -548,7 +548,7 @@ static void __cap_delay_requeue_front(struct ceph_mds_client *mdsc,
> static void __cap_delay_cancel(struct ceph_mds_client *mdsc,
> struct ceph_inode_info *ci)
> {
> - dout("__cap_delay_cancel %p\n", &ci->vfs_inode);
> + dout("__cap_delay_cancel %p\n", &ci->nic.inode);
> if (list_empty(&ci->i_cap_delay_list))
> return;
> spin_lock(&mdsc->cap_delay_lock);
> @@ -568,7 +568,7 @@ static void __check_cap_issue(struct ceph_inode_info *ci, struct ceph_cap *cap,
> * Each time we receive FILE_CACHE anew, we increment
> * i_rdcache_gen.
> */
> - if (S_ISREG(ci->vfs_inode.i_mode) &&
> + if (S_ISREG(ci->nic.inode.i_mode) &&
> (issued & (CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_LAZYIO)) &&
> (had & (CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_LAZYIO)) == 0) {
> ci->i_rdcache_gen++;
> @@ -583,14 +583,14 @@ static void __check_cap_issue(struct ceph_inode_info *ci, struct ceph_cap *cap,
> if ((issued & CEPH_CAP_FILE_SHARED) != (had & CEPH_CAP_FILE_SHARED)) {
> if (issued & CEPH_CAP_FILE_SHARED)
> atomic_inc(&ci->i_shared_gen);
> - if (S_ISDIR(ci->vfs_inode.i_mode)) {
> - dout(" marking %p NOT complete\n", &ci->vfs_inode);
> + if (S_ISDIR(ci->nic.inode.i_mode)) {
> + dout(" marking %p NOT complete\n", &ci->nic.inode);
> __ceph_dir_clear_complete(ci);
> }
> }
>
> /* Wipe saved layout if we're losing DIR_CREATE caps */
> - if (S_ISDIR(ci->vfs_inode.i_mode) && (had & CEPH_CAP_DIR_CREATE) &&
> + if (S_ISDIR(ci->nic.inode.i_mode) && (had & CEPH_CAP_DIR_CREATE) &&
> !(issued & CEPH_CAP_DIR_CREATE)) {
> ceph_put_string(rcu_dereference_raw(ci->i_cached_layout.pool_ns));
> memset(&ci->i_cached_layout, 0, sizeof(ci->i_cached_layout));
> @@ -771,7 +771,7 @@ static int __cap_is_valid(struct ceph_cap *cap)
>
> if (cap->cap_gen < gen || time_after_eq(jiffies, ttl)) {
> dout("__cap_is_valid %p cap %p issued %s "
> - "but STALE (gen %u vs %u)\n", &cap->ci->vfs_inode,
> + "but STALE (gen %u vs %u)\n", &cap->ci->nic.inode,
> cap, ceph_cap_string(cap->issued), cap->cap_gen, gen);
> return 0;
> }
> @@ -797,7 +797,7 @@ int __ceph_caps_issued(struct ceph_inode_info *ci, int *implemented)
> if (!__cap_is_valid(cap))
> continue;
> dout("__ceph_caps_issued %p cap %p issued %s\n",
> - &ci->vfs_inode, cap, ceph_cap_string(cap->issued));
> + &ci->nic.inode, cap, ceph_cap_string(cap->issued));
> have |= cap->issued;
> if (implemented)
> *implemented |= cap->implemented;
> @@ -844,12 +844,12 @@ static void __touch_cap(struct ceph_cap *cap)
>
> spin_lock(&s->s_cap_lock);
> if (!s->s_cap_iterator) {
> - dout("__touch_cap %p cap %p mds%d\n", &cap->ci->vfs_inode, cap,
> + dout("__touch_cap %p cap %p mds%d\n", &cap->ci->nic.inode, cap,
> s->s_mds);
> list_move_tail(&cap->session_caps, &s->s_caps);
> } else {
> dout("__touch_cap %p cap %p mds%d NOP, iterating over caps\n",
> - &cap->ci->vfs_inode, cap, s->s_mds);
> + &cap->ci->nic.inode, cap, s->s_mds);
> }
> spin_unlock(&s->s_cap_lock);
> }
> @@ -867,7 +867,7 @@ int __ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask, int touch)
>
> if ((have & mask) == mask) {
> dout("__ceph_caps_issued_mask ino 0x%llx snap issued %s"
> - " (mask %s)\n", ceph_ino(&ci->vfs_inode),
> + " (mask %s)\n", ceph_ino(&ci->nic.inode),
> ceph_cap_string(have),
> ceph_cap_string(mask));
> return 1;
> @@ -879,7 +879,7 @@ int __ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask, int touch)
> continue;
> if ((cap->issued & mask) == mask) {
> dout("__ceph_caps_issued_mask ino 0x%llx cap %p issued %s"
> - " (mask %s)\n", ceph_ino(&ci->vfs_inode), cap,
> + " (mask %s)\n", ceph_ino(&ci->nic.inode), cap,
> ceph_cap_string(cap->issued),
> ceph_cap_string(mask));
> if (touch)
> @@ -891,7 +891,7 @@ int __ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask, int touch)
> have |= cap->issued;
> if ((have & mask) == mask) {
> dout("__ceph_caps_issued_mask ino 0x%llx combo issued %s"
> - " (mask %s)\n", ceph_ino(&ci->vfs_inode),
> + " (mask %s)\n", ceph_ino(&ci->nic.inode),
> ceph_cap_string(cap->issued),
> ceph_cap_string(mask));
> if (touch) {
> @@ -919,7 +919,7 @@ int __ceph_caps_issued_mask(struct ceph_inode_info *ci, int mask, int touch)
> int __ceph_caps_issued_mask_metric(struct ceph_inode_info *ci, int mask,
> int touch)
> {
> - struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);
> + struct ceph_fs_client *fsc = ceph_sb_to_client(ci->nic.inode.i_sb);
> int r;
>
> r = __ceph_caps_issued_mask(ci, mask, touch);
> @@ -950,7 +950,7 @@ int __ceph_caps_revoking_other(struct ceph_inode_info *ci,
>
> int ceph_caps_revoking(struct ceph_inode_info *ci, int mask)
> {
> - struct inode *inode = &ci->vfs_inode;
> + struct inode *inode = &ci->nic.inode;
> int ret;
>
> spin_lock(&ci->i_ceph_lock);
> @@ -969,8 +969,8 @@ int __ceph_caps_used(struct ceph_inode_info *ci)
> if (ci->i_rd_ref)
> used |= CEPH_CAP_FILE_RD;
> if (ci->i_rdcache_ref ||
> - (S_ISREG(ci->vfs_inode.i_mode) &&
> - ci->vfs_inode.i_data.nrpages))
> + (S_ISREG(ci->nic.inode.i_mode) &&
> + ci->nic.inode.i_data.nrpages))
> used |= CEPH_CAP_FILE_CACHE;
> if (ci->i_wr_ref)
> used |= CEPH_CAP_FILE_WR;
> @@ -993,11 +993,11 @@ int __ceph_caps_file_wanted(struct ceph_inode_info *ci)
> const int WR_SHIFT = ffs(CEPH_FILE_MODE_WR);
> const int LAZY_SHIFT = ffs(CEPH_FILE_MODE_LAZY);
> struct ceph_mount_options *opt =
> - ceph_inode_to_client(&ci->vfs_inode)->mount_options;
> + ceph_inode_to_client(&ci->nic.inode)->mount_options;
> unsigned long used_cutoff = jiffies - opt->caps_wanted_delay_max * HZ;
> unsigned long idle_cutoff = jiffies - opt->caps_wanted_delay_min * HZ;
>
> - if (S_ISDIR(ci->vfs_inode.i_mode)) {
> + if (S_ISDIR(ci->nic.inode.i_mode)) {
> int want = 0;
>
> /* use used_cutoff here, to keep dir's wanted caps longer */
> @@ -1050,7 +1050,7 @@ int __ceph_caps_file_wanted(struct ceph_inode_info *ci)
> int __ceph_caps_wanted(struct ceph_inode_info *ci)
> {
> int w = __ceph_caps_file_wanted(ci) | __ceph_caps_used(ci);
> - if (S_ISDIR(ci->vfs_inode.i_mode)) {
> + if (S_ISDIR(ci->nic.inode.i_mode)) {
> /* we want EXCL if holding caps of dir ops */
> if (w & CEPH_CAP_ANY_DIR_OPS)
> w |= CEPH_CAP_FILE_EXCL;
> @@ -1116,9 +1116,9 @@ void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release)
>
> lockdep_assert_held(&ci->i_ceph_lock);
>
> - dout("__ceph_remove_cap %p from %p\n", cap, &ci->vfs_inode);
> + dout("__ceph_remove_cap %p from %p\n", cap, &ci->nic.inode);
>
> - mdsc = ceph_inode_to_client(&ci->vfs_inode)->mdsc;
> + mdsc = ceph_inode_to_client(&ci->nic.inode)->mdsc;
>
> /* remove from inode's cap rbtree, and clear auth cap */
> rb_erase(&cap->ci_node, &ci->i_caps);
> @@ -1169,7 +1169,7 @@ void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release)
> * keep i_snap_realm.
> */
> if (ci->i_wr_ref == 0 && ci->i_snap_realm)
> - ceph_change_snap_realm(&ci->vfs_inode, NULL);
> + ceph_change_snap_realm(&ci->nic.inode, NULL);
>
> __cap_delay_cancel(mdsc, ci);
> }
> @@ -1188,11 +1188,11 @@ void ceph_remove_cap(struct ceph_cap *cap, bool queue_release)
>
> lockdep_assert_held(&ci->i_ceph_lock);
>
> - fsc = ceph_inode_to_client(&ci->vfs_inode);
> + fsc = ceph_inode_to_client(&ci->nic.inode);
> WARN_ON_ONCE(ci->i_auth_cap == cap &&
> !list_empty(&ci->i_dirty_item) &&
> !fsc->blocklisted &&
> - !ceph_inode_is_shutdown(&ci->vfs_inode));
> + !ceph_inode_is_shutdown(&ci->nic.inode));
>
> __ceph_remove_cap(cap, queue_release);
> }
> @@ -1343,7 +1343,7 @@ static void __prep_cap(struct cap_msg_args *arg, struct ceph_cap *cap,
> int flushing, u64 flush_tid, u64 oldest_flush_tid)
> {
> struct ceph_inode_info *ci = cap->ci;
> - struct inode *inode = &ci->vfs_inode;
> + struct inode *inode = &ci->nic.inode;
> int held, revoking;
>
> lockdep_assert_held(&ci->i_ceph_lock);
> @@ -1440,7 +1440,7 @@ static void __prep_cap(struct cap_msg_args *arg, struct ceph_cap *cap,
> static void __send_cap(struct cap_msg_args *arg, struct ceph_inode_info *ci)
> {
> struct ceph_msg *msg;
> - struct inode *inode = &ci->vfs_inode;
> + struct inode *inode = &ci->nic.inode;
>
> msg = ceph_msg_new(CEPH_MSG_CLIENT_CAPS, CAP_MSG_SIZE, GFP_NOFS, false);
> if (!msg) {
> @@ -1528,7 +1528,7 @@ static void __ceph_flush_snaps(struct ceph_inode_info *ci,
> __releases(ci->i_ceph_lock)
> __acquires(ci->i_ceph_lock)
> {
> - struct inode *inode = &ci->vfs_inode;
> + struct inode *inode = &ci->nic.inode;
> struct ceph_mds_client *mdsc = session->s_mdsc;
> struct ceph_cap_snap *capsnap;
> u64 oldest_flush_tid = 0;
> @@ -1621,7 +1621,7 @@ static void __ceph_flush_snaps(struct ceph_inode_info *ci,
> void ceph_flush_snaps(struct ceph_inode_info *ci,
> struct ceph_mds_session **psession)
> {
> - struct inode *inode = &ci->vfs_inode;
> + struct inode *inode = &ci->nic.inode;
> struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc;
> struct ceph_mds_session *session = NULL;
> int mds;
> @@ -1681,8 +1681,8 @@ int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask,
> struct ceph_cap_flush **pcf)
> {
> struct ceph_mds_client *mdsc =
> - ceph_sb_to_client(ci->vfs_inode.i_sb)->mdsc;
> - struct inode *inode = &ci->vfs_inode;
> + ceph_sb_to_client(ci->nic.inode.i_sb)->mdsc;
> + struct inode *inode = &ci->nic.inode;
> int was = ci->i_dirty_caps;
> int dirty = 0;
>
> @@ -1695,7 +1695,7 @@ int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask,
> return 0;
> }
>
> - dout("__mark_dirty_caps %p %s dirty %s -> %s\n", &ci->vfs_inode,
> + dout("__mark_dirty_caps %p %s dirty %s -> %s\n", &ci->nic.inode,
> ceph_cap_string(mask), ceph_cap_string(was),
> ceph_cap_string(was | mask));
> ci->i_dirty_caps |= mask;
> @@ -1711,7 +1711,7 @@ int __ceph_mark_dirty_caps(struct ceph_inode_info *ci, int mask,
> ci->i_snap_realm->cached_context);
> }
> dout(" inode %p now dirty snapc %p auth cap %p\n",
> - &ci->vfs_inode, ci->i_head_snapc, ci->i_auth_cap);
> + &ci->nic.inode, ci->i_head_snapc, ci->i_auth_cap);
> BUG_ON(!list_empty(&ci->i_dirty_item));
> spin_lock(&mdsc->cap_dirty_lock);
> list_add(&ci->i_dirty_item, &session->s_cap_dirty);
> @@ -1874,7 +1874,7 @@ static int try_nonblocking_invalidate(struct inode *inode)
>
> bool __ceph_should_report_size(struct ceph_inode_info *ci)
> {
> - loff_t size = i_size_read(&ci->vfs_inode);
> + loff_t size = i_size_read(&ci->nic.inode);
> /* mds will adjust max size according to the reported size */
> if (ci->i_flushing_caps & CEPH_CAP_FILE_WR)
> return false;
> @@ -1899,7 +1899,7 @@ bool __ceph_should_report_size(struct ceph_inode_info *ci)
> void ceph_check_caps(struct ceph_inode_info *ci, int flags,
> struct ceph_mds_session *session)
> {
> - struct inode *inode = &ci->vfs_inode;
> + struct inode *inode = &ci->nic.inode;
> struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
> struct ceph_cap *cap;
> u64 flush_tid, oldest_flush_tid;
> @@ -2446,7 +2446,7 @@ static void __kick_flushing_caps(struct ceph_mds_client *mdsc,
> __releases(ci->i_ceph_lock)
> __acquires(ci->i_ceph_lock)
> {
> - struct inode *inode = &ci->vfs_inode;
> + struct inode *inode = &ci->nic.inode;
> struct ceph_cap *cap;
> struct ceph_cap_flush *cf;
> int ret;
> @@ -2539,7 +2539,7 @@ void ceph_early_kick_flushing_caps(struct ceph_mds_client *mdsc,
> cap = ci->i_auth_cap;
> if (!(cap && cap->session == session)) {
> pr_err("%p auth cap %p not mds%d ???\n",
> - &ci->vfs_inode, cap, session->s_mds);
> + &ci->nic.inode, cap, session->s_mds);
> spin_unlock(&ci->i_ceph_lock);
> continue;
> }
> @@ -2589,7 +2589,7 @@ void ceph_kick_flushing_caps(struct ceph_mds_client *mdsc,
> cap = ci->i_auth_cap;
> if (!(cap && cap->session == session)) {
> pr_err("%p auth cap %p not mds%d ???\n",
> - &ci->vfs_inode, cap, session->s_mds);
> + &ci->nic.inode, cap, session->s_mds);
> spin_unlock(&ci->i_ceph_lock);
> continue;
> }
> @@ -2609,7 +2609,7 @@ void ceph_kick_flushing_inode_caps(struct ceph_mds_session *session,
>
> lockdep_assert_held(&ci->i_ceph_lock);
>
> - dout("%s %p flushing %s\n", __func__, &ci->vfs_inode,
> + dout("%s %p flushing %s\n", __func__, &ci->nic.inode,
> ceph_cap_string(ci->i_flushing_caps));
>
> if (!list_empty(&ci->i_cap_flush_list)) {
> @@ -2652,10 +2652,10 @@ void ceph_take_cap_refs(struct ceph_inode_info *ci, int got,
> }
> if (got & CEPH_CAP_FILE_BUFFER) {
> if (ci->i_wb_ref == 0)
> - ihold(&ci->vfs_inode);
> + ihold(&ci->nic.inode);
> ci->i_wb_ref++;
> dout("%s %p wb %d -> %d (?)\n", __func__,
> - &ci->vfs_inode, ci->i_wb_ref-1, ci->i_wb_ref);
> + &ci->nic.inode, ci->i_wb_ref-1, ci->i_wb_ref);
> }
> }
>
> @@ -2983,7 +2983,7 @@ int ceph_get_caps(struct file *filp, int need, int want, loff_t endoff, int *got
> return ret;
> }
>
> - if (S_ISREG(ci->vfs_inode.i_mode) &&
> + if (S_ISREG(ci->nic.inode.i_mode) &&
> ci->i_inline_version != CEPH_INLINE_NONE &&
> (_got & (CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_LAZYIO)) &&
> i_size_read(inode) > 0) {
> @@ -3073,7 +3073,7 @@ enum put_cap_refs_mode {
> static void __ceph_put_cap_refs(struct ceph_inode_info *ci, int had,
> enum put_cap_refs_mode mode)
> {
> - struct inode *inode = &ci->vfs_inode;
> + struct inode *inode = &ci->nic.inode;
> int last = 0, put = 0, flushsnaps = 0, wake = 0;
> bool check_flushsnaps = false;
>
> @@ -3181,7 +3181,7 @@ void ceph_put_cap_refs_no_check_caps(struct ceph_inode_info *ci, int had)
> void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
> struct ceph_snap_context *snapc)
> {
> - struct inode *inode = &ci->vfs_inode;
> + struct inode *inode = &ci->nic.inode;
> struct ceph_cap_snap *capsnap = NULL;
> int put = 0;
> bool last = false;
> @@ -3678,7 +3678,7 @@ static void handle_cap_flush_ack(struct inode *inode, u64 flush_tid,
> session->s_mds,
> &list_first_entry(&session->s_cap_flushing,
> struct ceph_inode_info,
> - i_flushing_item)->vfs_inode);
> + i_flushing_item)->nic.inode);
> }
> }
> mdsc->num_cap_flushing--;
> @@ -4326,7 +4326,7 @@ unsigned long ceph_check_delayed_caps(struct ceph_mds_client *mdsc)
> break;
> list_del_init(&ci->i_cap_delay_list);
>
> - inode = igrab(&ci->vfs_inode);
> + inode = igrab(&ci->nic.inode);
> if (inode) {
> spin_unlock(&mdsc->cap_delay_lock);
> dout("check_delayed_caps on %p\n", inode);
> @@ -4354,7 +4354,7 @@ static void flush_dirty_session_caps(struct ceph_mds_session *s)
> while (!list_empty(&s->s_cap_dirty)) {
> ci = list_first_entry(&s->s_cap_dirty, struct ceph_inode_info,
> i_dirty_item);
> - inode = &ci->vfs_inode;
> + inode = &ci->nic.inode;
> ihold(inode);
> dout("flush_dirty_caps %llx.%llx\n", ceph_vinop(inode));
> spin_unlock(&mdsc->cap_dirty_lock);
> @@ -4388,7 +4388,7 @@ void __ceph_touch_fmode(struct ceph_inode_info *ci,
>
> void ceph_get_fmode(struct ceph_inode_info *ci, int fmode, int count)
> {
> - struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(ci->vfs_inode.i_sb);
> + struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(ci->nic.inode.i_sb);
> int bits = (fmode << 1) | 1;
> bool already_opened = false;
> int i;
> @@ -4422,7 +4422,7 @@ void ceph_get_fmode(struct ceph_inode_info *ci, int fmode, int count)
> */
> void ceph_put_fmode(struct ceph_inode_info *ci, int fmode, int count)
> {
> - struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(ci->vfs_inode.i_sb);
> + struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(ci->nic.inode.i_sb);
> int bits = (fmode << 1) | 1;
> bool is_closed = true;
> int i;
> @@ -4637,7 +4637,7 @@ int ceph_purge_inode_cap(struct inode *inode, struct ceph_cap *cap, bool *invali
> lockdep_assert_held(&ci->i_ceph_lock);
>
> dout("removing cap %p, ci is %p, inode is %p\n",
> - cap, ci, &ci->vfs_inode);
> + cap, ci, &ci->nic.inode);
>
> is_auth = (cap == ci->i_auth_cap);
> __ceph_remove_cap(cap, false);
> diff --git a/fs/ceph/file.c b/fs/ceph/file.c
> index 8c8226c0feac..fb4383ca8458 100644
> --- a/fs/ceph/file.c
> +++ b/fs/ceph/file.c
> @@ -205,7 +205,7 @@ static int ceph_init_file_info(struct inode *inode, struct file *file,
> {
> struct ceph_inode_info *ci = ceph_inode(inode);
> struct ceph_mount_options *opt =
> - ceph_inode_to_client(&ci->vfs_inode)->mount_options;
> + ceph_inode_to_client(&ci->nic.inode)->mount_options;
> struct ceph_file_info *fi;
> int ret;
>
> diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
> index 63113e2a4890..0fb4ea5d4527 100644
> --- a/fs/ceph/inode.c
> +++ b/fs/ceph/inode.c
> @@ -176,7 +176,7 @@ static struct ceph_inode_frag *__get_or_create_frag(struct ceph_inode_info *ci,
> rb_insert_color(&frag->node, &ci->i_fragtree);
>
> dout("get_or_create_frag added %llx.%llx frag %x\n",
> - ceph_vinop(&ci->vfs_inode), f);
> + ceph_vinop(&ci->nic.inode), f);
> return frag;
> }
>
> @@ -457,10 +457,10 @@ struct inode *ceph_alloc_inode(struct super_block *sb)
> if (!ci)
> return NULL;
>
> - dout("alloc_inode %p\n", &ci->vfs_inode);
> + dout("alloc_inode %p\n", &ci->nic.inode);
>
> /* Set parameters for the netfs library */
> - netfs_i_context_init(&ci->vfs_inode, &ceph_netfs_ops);
> + netfs_i_context_init(&ci->nic.inode, &ceph_netfs_ops);
>
> spin_lock_init(&ci->i_ceph_lock);
>
> @@ -547,7 +547,7 @@ struct inode *ceph_alloc_inode(struct super_block *sb)
> INIT_WORK(&ci->i_work, ceph_inode_work);
> ci->i_work_mask = 0;
> memset(&ci->i_btime, '\0', sizeof(ci->i_btime));
> - return &ci->vfs_inode;
> + return &ci->nic.inode;
> }
>
> void ceph_free_inode(struct inode *inode)
> @@ -1977,7 +1977,7 @@ static void ceph_inode_work(struct work_struct *work)
> {
> struct ceph_inode_info *ci = container_of(work, struct ceph_inode_info,
> i_work);
> - struct inode *inode = &ci->vfs_inode;
> + struct inode *inode = &ci->nic.inode;
>
> if (test_and_clear_bit(CEPH_I_WORK_WRITEBACK, &ci->i_work_mask)) {
> dout("writeback %p\n", inode);
> diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
> index 00c3de177dd6..a94991a13738 100644
> --- a/fs/ceph/mds_client.c
> +++ b/fs/ceph/mds_client.c
> @@ -1564,7 +1564,7 @@ int ceph_iterate_session_caps(struct ceph_mds_session *session,
> p = session->s_caps.next;
> while (p != &session->s_caps) {
> cap = list_entry(p, struct ceph_cap, session_caps);
> - inode = igrab(&cap->ci->vfs_inode);
> + inode = igrab(&cap->ci->nic.inode);
> if (!inode) {
> p = p->next;
> continue;
> @@ -1622,7 +1622,7 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap,
> int iputs;
>
> dout("removing cap %p, ci is %p, inode is %p\n",
> - cap, ci, &ci->vfs_inode);
> + cap, ci, &ci->nic.inode);
> spin_lock(&ci->i_ceph_lock);
> iputs = ceph_purge_inode_cap(inode, cap, &invalidate);
> spin_unlock(&ci->i_ceph_lock);
> diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
> index 322ee5add942..bf7991c48c1e 100644
> --- a/fs/ceph/snap.c
> +++ b/fs/ceph/snap.c
> @@ -521,7 +521,7 @@ static bool has_new_snaps(struct ceph_snap_context *o,
> static void ceph_queue_cap_snap(struct ceph_inode_info *ci,
> struct ceph_cap_snap **pcapsnap)
> {
> - struct inode *inode = &ci->vfs_inode;
> + struct inode *inode = &ci->nic.inode;
> struct ceph_snap_context *old_snapc, *new_snapc;
> struct ceph_cap_snap *capsnap = *pcapsnap;
> struct ceph_buffer *old_blob = NULL;
> @@ -652,7 +652,7 @@ static void ceph_queue_cap_snap(struct ceph_inode_info *ci,
> int __ceph_finish_cap_snap(struct ceph_inode_info *ci,
> struct ceph_cap_snap *capsnap)
> {
> - struct inode *inode = &ci->vfs_inode;
> + struct inode *inode = &ci->nic.inode;
> struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(inode->i_sb);
>
> BUG_ON(capsnap->writing);
> @@ -712,7 +712,7 @@ static void queue_realm_cap_snaps(struct ceph_snap_realm *realm)
>
> spin_lock(&realm->inodes_with_caps_lock);
> list_for_each_entry(ci, &realm->inodes_with_caps, i_snap_realm_item) {
> - struct inode *inode = igrab(&ci->vfs_inode);
> + struct inode *inode = igrab(&ci->nic.inode);
> if (!inode)
> continue;
> spin_unlock(&realm->inodes_with_caps_lock);
> @@ -904,7 +904,7 @@ static void flush_snaps(struct ceph_mds_client *mdsc)
> while (!list_empty(&mdsc->snap_flush_list)) {
> ci = list_first_entry(&mdsc->snap_flush_list,
> struct ceph_inode_info, i_snap_flush_item);
> - inode = &ci->vfs_inode;
> + inode = &ci->nic.inode;
> ihold(inode);
> spin_unlock(&mdsc->snap_flush_lock);
> ceph_flush_snaps(ci, &session);
> diff --git a/fs/ceph/super.c b/fs/ceph/super.c
> index e6987d295079..45d6b3ccf4de 100644
> --- a/fs/ceph/super.c
> +++ b/fs/ceph/super.c
> @@ -876,7 +876,7 @@ mempool_t *ceph_wb_pagevec_pool;
> static void ceph_inode_init_once(void *foo)
> {
> struct ceph_inode_info *ci = foo;
> - inode_init_once(&ci->vfs_inode);
> + inode_init_once(&ci->nic.inode);
> }
>
> static int __init init_caches(void)
> diff --git a/fs/ceph/super.h b/fs/ceph/super.h
> index 20ceab74e871..d1434959d5f1 100644
> --- a/fs/ceph/super.h
> +++ b/fs/ceph/super.h
> @@ -316,11 +316,7 @@ struct ceph_inode_xattrs_info {
> * Ceph inode.
> */
> struct ceph_inode_info {
> - struct {
> - /* These must be contiguous */
> - struct inode vfs_inode;
> - struct netfs_i_context netfs_ctx; /* Netfslib context */
> - };
> + struct netfs_i_context nic; /* Netfslib context and vfs inode */
> struct ceph_vino i_vino; /* ceph ino + snap */
>
> spinlock_t i_ceph_lock;
> @@ -436,7 +432,7 @@ struct ceph_inode_info {
> static inline struct ceph_inode_info *
> ceph_inode(const struct inode *inode)
> {
> - return container_of(inode, struct ceph_inode_info, vfs_inode);
> + return container_of(inode, struct ceph_inode_info, nic.inode);
> }
>
> static inline struct ceph_fs_client *
> @@ -1295,7 +1291,7 @@ static inline void __ceph_update_quota(struct ceph_inode_info *ci,
> has_quota = __ceph_has_any_quota(ci);
>
> if (had_quota != has_quota)
> - ceph_adjust_quota_realms_count(&ci->vfs_inode, has_quota);
> + ceph_adjust_quota_realms_count(&ci->nic.inode, has_quota);
> }
>
> extern void ceph_handle_quota(struct ceph_mds_client *mdsc,
> diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
> index afec84088471..7967d2552e88 100644
> --- a/fs/ceph/xattr.c
> +++ b/fs/ceph/xattr.c
> @@ -57,7 +57,7 @@ static bool ceph_vxattrcb_layout_exists(struct ceph_inode_info *ci)
> static ssize_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val,
> size_t size)
> {
> - struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);
> + struct ceph_fs_client *fsc = ceph_sb_to_client(ci->nic.inode.i_sb);
> struct ceph_osd_client *osdc = &fsc->client->osdc;
> struct ceph_string *pool_ns;
> s64 pool = ci->i_layout.pool_id;
> @@ -69,7 +69,7 @@ static ssize_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val,
>
> pool_ns = ceph_try_get_string(ci->i_layout.pool_ns);
>
> - dout("ceph_vxattrcb_layout %p\n", &ci->vfs_inode);
> + dout("ceph_vxattrcb_layout %p\n", &ci->nic.inode);
> down_read(&osdc->lock);
> pool_name = ceph_pg_pool_name_by_id(osdc->osdmap, pool);
> if (pool_name) {
> @@ -161,7 +161,7 @@ static ssize_t ceph_vxattrcb_layout_pool(struct ceph_inode_info *ci,
> char *val, size_t size)
> {
> ssize_t ret;
> - struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);
> + struct ceph_fs_client *fsc = ceph_sb_to_client(ci->nic.inode.i_sb);
> struct ceph_osd_client *osdc = &fsc->client->osdc;
> s64 pool = ci->i_layout.pool_id;
> const char *pool_name;
> @@ -313,7 +313,7 @@ static ssize_t ceph_vxattrcb_snap_btime(struct ceph_inode_info *ci, char *val,
> static ssize_t ceph_vxattrcb_cluster_fsid(struct ceph_inode_info *ci,
> char *val, size_t size)
> {
> - struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);
> + struct ceph_fs_client *fsc = ceph_sb_to_client(ci->nic.inode.i_sb);
>
> return ceph_fmt_xattr(val, size, "%pU", &fsc->client->fsid);
> }
> @@ -321,7 +321,7 @@ static ssize_t ceph_vxattrcb_cluster_fsid(struct ceph_inode_info *ci,
> static ssize_t ceph_vxattrcb_client_id(struct ceph_inode_info *ci,
> char *val, size_t size)
> {
> - struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);
> + struct ceph_fs_client *fsc = ceph_sb_to_client(ci->nic.inode.i_sb);
>
> return ceph_fmt_xattr(val, size, "client%lld",
> ceph_client_gid(fsc->client));
> @@ -621,7 +621,7 @@ static int __set_xattr(struct ceph_inode_info *ci,
> }
>
> dout("__set_xattr_val added %llx.%llx xattr %p %.*s=%.*s\n",
> - ceph_vinop(&ci->vfs_inode), xattr, name_len, name, val_len, val);
> + ceph_vinop(&ci->nic.inode), xattr, name_len, name, val_len, val);
>
> return 0;
> }
> @@ -863,7 +863,7 @@ struct ceph_buffer *__ceph_build_xattrs_blob(struct ceph_inode_info *ci)
> struct ceph_buffer *old_blob = NULL;
> void *dest;
>
> - dout("__build_xattrs_blob %p\n", &ci->vfs_inode);
> + dout("__build_xattrs_blob %p\n", &ci->nic.inode);
> if (ci->i_xattrs.dirty) {
> int need = __get_required_blob_size(ci, 0, 0);
>
> diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
> index 2b1a1c029c75..a4e50021f199 100644
> --- a/fs/cifs/cifsfs.c
> +++ b/fs/cifs/cifsfs.c
> @@ -377,7 +377,7 @@ cifs_alloc_inode(struct super_block *sb)
> cifs_inode->flags = 0;
> spin_lock_init(&cifs_inode->writers_lock);
> cifs_inode->writers = 0;
> - cifs_inode->vfs_inode.i_blkbits = 14; /* 2**14 = CIFS_MAX_MSGSIZE */
> + cifs_inode->nic.inode.i_blkbits = 14; /* 2**14 = CIFS_MAX_MSGSIZE */
> cifs_inode->server_eof = 0;
> cifs_inode->uniqueid = 0;
> cifs_inode->createtime = 0;
> @@ -389,12 +389,12 @@ cifs_alloc_inode(struct super_block *sb)
> * Can not set i_flags here - they get immediately overwritten to zero
> * by the VFS.
> */
> - /* cifs_inode->vfs_inode.i_flags = S_NOATIME | S_NOCMTIME; */
> + /* cifs_inode->nic.inode.i_flags = S_NOATIME | S_NOCMTIME; */
> INIT_LIST_HEAD(&cifs_inode->openFileList);
> INIT_LIST_HEAD(&cifs_inode->llist);
> INIT_LIST_HEAD(&cifs_inode->deferred_closes);
> spin_lock_init(&cifs_inode->deferred_lock);
> - return &cifs_inode->vfs_inode;
> + return &cifs_inode->nic.inode;
> }
>
> static void
> @@ -1414,7 +1414,7 @@ cifs_init_once(void *inode)
> {
> struct cifsInodeInfo *cifsi = inode;
>
> - inode_init_once(&cifsi->vfs_inode);
> + inode_init_once(&cifsi->nic.inode);
> init_rwsem(&cifsi->lock_sem);
> }
>
> diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
> index 8de977c359b1..3018245784f5 100644
> --- a/fs/cifs/cifsglob.h
> +++ b/fs/cifs/cifsglob.h
> @@ -1396,20 +1396,16 @@ void cifsFileInfo_put(struct cifsFileInfo *cifs_file);
> #define CIFS_CACHE_RW_FLG (CIFS_CACHE_READ_FLG | CIFS_CACHE_WRITE_FLG)
> #define CIFS_CACHE_RHW_FLG (CIFS_CACHE_RW_FLG | CIFS_CACHE_HANDLE_FLG)
>
> -#define CIFS_CACHE_READ(cinode) ((cinode->oplock & CIFS_CACHE_READ_FLG) || (CIFS_SB(cinode->vfs_inode.i_sb)->mnt_cifs_flags & CIFS_MOUNT_RO_CACHE))
> +#define CIFS_CACHE_READ(cinode) ((cinode->oplock & CIFS_CACHE_READ_FLG) || (CIFS_SB(cinode->nic.inode.i_sb)->mnt_cifs_flags & CIFS_MOUNT_RO_CACHE))
> #define CIFS_CACHE_HANDLE(cinode) (cinode->oplock & CIFS_CACHE_HANDLE_FLG)
> -#define CIFS_CACHE_WRITE(cinode) ((cinode->oplock & CIFS_CACHE_WRITE_FLG) || (CIFS_SB(cinode->vfs_inode.i_sb)->mnt_cifs_flags & CIFS_MOUNT_RW_CACHE))
> +#define CIFS_CACHE_WRITE(cinode) ((cinode->oplock & CIFS_CACHE_WRITE_FLG) || (CIFS_SB(cinode->nic.inode.i_sb)->mnt_cifs_flags & CIFS_MOUNT_RW_CACHE))
>
> /*
> * One of these for each file inode
> */
>
> struct cifsInodeInfo {
> - struct {
> - /* These must be contiguous */
> - struct inode vfs_inode; /* the VFS's inode record */
> - struct netfs_i_context netfs_ctx; /* Netfslib context */
> - };
> + struct netfs_i_context nic; /* Netfslib context and vfs inode */
> bool can_cache_brlcks;
> struct list_head llist; /* locks helb by this inode */
> /*
> @@ -1448,7 +1444,7 @@ struct cifsInodeInfo {
> static inline struct cifsInodeInfo *
> CIFS_I(struct inode *inode)
> {
> - return container_of(inode, struct cifsInodeInfo, vfs_inode);
> + return container_of(inode, struct cifsInodeInfo, nic.inode);
> }
>
> static inline struct cifs_sb_info *
> diff --git a/fs/cifs/file.c b/fs/cifs/file.c
> index d511a78383c3..c194fd9f003c 100644
> --- a/fs/cifs/file.c
> +++ b/fs/cifs/file.c
> @@ -2004,7 +2004,7 @@ struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *cifs_inode,
> bool fsuid_only)
> {
> struct cifsFileInfo *open_file = NULL;
> - struct cifs_sb_info *cifs_sb = CIFS_SB(cifs_inode->vfs_inode.i_sb);
> + struct cifs_sb_info *cifs_sb = CIFS_SB(cifs_inode->nic.inode.i_sb);
>
> /* only filter by fsuid on multiuser mounts */
> if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER))
> @@ -2060,7 +2060,7 @@ cifs_get_writable_file(struct cifsInodeInfo *cifs_inode, int flags,
> return rc;
> }
>
> - cifs_sb = CIFS_SB(cifs_inode->vfs_inode.i_sb);
> + cifs_sb = CIFS_SB(cifs_inode->nic.inode.i_sb);
>
> /* only filter by fsuid on multiuser mounts */
> if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER))
> @@ -4665,14 +4665,14 @@ bool is_size_safe_to_change(struct cifsInodeInfo *cifsInode, __u64 end_of_file)
> /* This inode is open for write at least once */
> struct cifs_sb_info *cifs_sb;
>
> - cifs_sb = CIFS_SB(cifsInode->vfs_inode.i_sb);
> + cifs_sb = CIFS_SB(cifsInode->nic.inode.i_sb);
> if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
> /* since no page cache to corrupt on directio
> we can change size safely */
> return true;
> }
>
> - if (i_size_read(&cifsInode->vfs_inode) < end_of_file)
> + if (i_size_read(&cifsInode->nic.inode) < end_of_file)
> return true;
>
> return false;
> diff --git a/fs/cifs/fscache.c b/fs/cifs/fscache.c
> index a638b29e9062..ce655baf70e3 100644
> --- a/fs/cifs/fscache.c
> +++ b/fs/cifs/fscache.c
> @@ -101,13 +101,13 @@ void cifs_fscache_get_inode_cookie(struct inode *inode)
> struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
> struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
>
> - cifs_fscache_fill_coherency(&cifsi->vfs_inode, &cd);
> + cifs_fscache_fill_coherency(&cifsi->nic.inode, &cd);
>
> cifsi->netfs_ctx.cache =
> fscache_acquire_cookie(tcon->fscache, 0,
> &cifsi->uniqueid, sizeof(cifsi->uniqueid),
> &cd, sizeof(cd),
> - i_size_read(&cifsi->vfs_inode));
> + i_size_read(&cifsi->nic.inode));
> }
>
> void cifs_fscache_unuse_inode_cookie(struct inode *inode, bool update)
> diff --git a/fs/cifs/fscache.h b/fs/cifs/fscache.h
> index 52355c0912ae..47b2210f8051 100644
> --- a/fs/cifs/fscache.h
> +++ b/fs/cifs/fscache.h
> @@ -52,10 +52,10 @@ void cifs_fscache_fill_coherency(struct inode *inode,
> struct cifsInodeInfo *cifsi = CIFS_I(inode);
>
> memset(cd, 0, sizeof(*cd));
> - cd->last_write_time_sec = cpu_to_le64(cifsi->vfs_inode.i_mtime.tv_sec);
> - cd->last_write_time_nsec = cpu_to_le32(cifsi->vfs_inode.i_mtime.tv_nsec);
> - cd->last_change_time_sec = cpu_to_le64(cifsi->vfs_inode.i_ctime.tv_sec);
> - cd->last_change_time_nsec = cpu_to_le32(cifsi->vfs_inode.i_ctime.tv_nsec);
> + cd->last_write_time_sec = cpu_to_le64(cifsi->nic.inode.i_mtime.tv_sec);
> + cd->last_write_time_nsec = cpu_to_le32(cifsi->nic.inode.i_mtime.tv_nsec);
> + cd->last_change_time_sec = cpu_to_le64(cifsi->nic.inode.i_ctime.tv_sec);
> + cd->last_change_time_nsec = cpu_to_le32(cifsi->nic.inode.i_ctime.tv_nsec);
> }
>
>
> diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
> index 2f9e7d2f81b6..d79e0f650a33 100644
> --- a/fs/cifs/inode.c
> +++ b/fs/cifs/inode.c
> @@ -115,7 +115,7 @@ cifs_revalidate_cache(struct inode *inode, struct cifs_fattr *fattr)
> __func__, cifs_i->uniqueid);
> set_bit(CIFS_INO_INVALID_MAPPING, &cifs_i->flags);
> /* Invalidate fscache cookie */
> - cifs_fscache_fill_coherency(&cifs_i->vfs_inode, &cd);
> + cifs_fscache_fill_coherency(&cifs_i->nic.inode, &cd);
> fscache_invalidate(cifs_inode_cookie(inode), &cd, i_size_read(inode), 0);
> }
>
> @@ -2499,7 +2499,7 @@ int cifs_fiemap(struct inode *inode, struct fiemap_extent_info *fei, u64 start,
> u64 len)
> {
> struct cifsInodeInfo *cifs_i = CIFS_I(inode);
> - struct cifs_sb_info *cifs_sb = CIFS_SB(cifs_i->vfs_inode.i_sb);
> + struct cifs_sb_info *cifs_sb = CIFS_SB(cifs_i->nic.inode.i_sb);
> struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
> struct TCP_Server_Info *server = tcon->ses->server;
> struct cifsFileInfo *cfile;
> diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
> index afaf59c22193..7cfe3aba9be9 100644
> --- a/fs/cifs/misc.c
> +++ b/fs/cifs/misc.c
> @@ -536,11 +536,11 @@ void cifs_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock)
> if (oplock == OPLOCK_EXCLUSIVE) {
> cinode->oplock = CIFS_CACHE_WRITE_FLG | CIFS_CACHE_READ_FLG;
> cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n",
> - &cinode->vfs_inode);
> + &cinode->nic.inode);
> } else if (oplock == OPLOCK_READ) {
> cinode->oplock = CIFS_CACHE_READ_FLG;
> cifs_dbg(FYI, "Level II Oplock granted on inode %p\n",
> - &cinode->vfs_inode);
> + &cinode->nic.inode);
> } else
> cinode->oplock = 0;
> }
> diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
> index d6aaeff4a30a..28b5d24796e5 100644
> --- a/fs/cifs/smb2ops.c
> +++ b/fs/cifs/smb2ops.c
> @@ -4238,15 +4238,15 @@ smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
> if (oplock == SMB2_OPLOCK_LEVEL_BATCH) {
> cinode->oplock = CIFS_CACHE_RHW_FLG;
> cifs_dbg(FYI, "Batch Oplock granted on inode %p\n",
> - &cinode->vfs_inode);
> + &cinode->nic.inode);
> } else if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) {
> cinode->oplock = CIFS_CACHE_RW_FLG;
> cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n",
> - &cinode->vfs_inode);
> + &cinode->nic.inode);
> } else if (oplock == SMB2_OPLOCK_LEVEL_II) {
> cinode->oplock = CIFS_CACHE_READ_FLG;
> cifs_dbg(FYI, "Level II Oplock granted on inode %p\n",
> - &cinode->vfs_inode);
> + &cinode->nic.inode);
> } else
> cinode->oplock = 0;
> }
> @@ -4285,7 +4285,7 @@ smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
>
> cinode->oplock = new_oplock;
> cifs_dbg(FYI, "%s Lease granted on inode %p\n", message,
> - &cinode->vfs_inode);
> + &cinode->nic.inode);
> }
>
> static void
> diff --git a/include/linux/netfs.h b/include/linux/netfs.h
> index 1970c21b4f80..6e4e382ace03 100644
> --- a/include/linux/netfs.h
> +++ b/include/linux/netfs.h
> @@ -119,9 +119,10 @@ typedef void (*netfs_io_terminated_t)(void *priv, ssize_t transferred_or_error,
> bool was_async);
>
> /*
> - * Per-inode description. This must be directly after the inode struct.
> + * Per-inode context. This wraps the VFS inode.
> */
> struct netfs_i_context {
> + struct inode inode; /* The VFS inode */
> const struct netfs_request_ops *ops;
> #if IS_ENABLED(CONFIG_FSCACHE)
> struct fscache_cookie *cache;
> @@ -297,7 +298,7 @@ extern void netfs_stats_show(struct seq_file *);
> */
> static inline struct netfs_i_context *netfs_i_context(struct inode *inode)
> {
> - return (struct netfs_i_context *)(inode + 1);
> + return container_of(inode, struct netfs_i_context, inode);
> }
>
> /**
> @@ -309,7 +310,7 @@ static inline struct netfs_i_context *netfs_i_context(struct inode *inode)
> */
> static inline struct inode *netfs_inode(struct netfs_i_context *ctx)
> {
> - return ((struct inode *)ctx) - 1;
> + return &ctx->inode;
> }
>
> /**
> @@ -325,9 +326,11 @@ static inline void netfs_i_context_init(struct inode *inode,
> {
> struct netfs_i_context *ctx = netfs_i_context(inode);
>
> - memset(ctx, 0, sizeof(*ctx));
> ctx->ops = ops;
> ctx->remote_i_size = i_size_read(inode);
> +#if IS_ENABLED(CONFIG_FSCACHE)
> + ctx->cache = NULL;
> +#endif
> }
>
> /**
>
LGTM.
Reviewed-by: Xiubo Li <xiubli@...hat.com>
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