2021-09-20 14:39:54

by David Howells

[permalink] [raw]
Subject: [RFC PATCH] fscache, 9p, afs, cifs, nfs: Deal with some warnings from W=1

Deal with some warnings generated from make W=1:

(1) Add/remove/fix kerneldoc parameters descriptions.

(2) afs_sillyrename() isn't an API functions, so remove the kerneldoc
annotation.

(3) The fscache object CREATE_OBJECT work state isn't used, so remove it.

(4) Move __add_fid() from between v9fs_fid_add() and its comment.

(5) 9p's caches_show() doesn't really make sense as an API function, show
remove the kerneldoc annotation. It's also not prefixed with 'v9fs_'.

(6) Remove the kerneldoc annotation on cifs_match_ipdaddr() as it's not
fully documented.

(7) Turn cifs' rqst_page_get_length()'s banner comment into a kerneldoc
comment. It should probably be prefixed with "cifs_" though.

Signed-off-by: David Howells <[email protected]>
cc: Jeff Layton <[email protected]>
cc: Dominique Martinet <[email protected]>
cc: Marc Dionne <[email protected]>
cc: Steve French <[email protected]>
cc: Trond Myklebust <[email protected]>
cc: Anna Schumaker <[email protected]>
cc: Mauro Carvalho Chehab <[email protected]>
cc: [email protected]
cc: [email protected]
cc: [email protected]
cc: [email protected]
cc: [email protected]
cc: [email protected]
---

fs/9p/fid.c | 14 +++++++-------
fs/9p/v9fs.c | 8 +++-----
fs/9p/vfs_addr.c | 13 +++++++++----
fs/9p/vfs_file.c | 33 ++++++++++++---------------------
fs/9p/vfs_inode.c | 24 ++++++++++++++++--------
fs/9p/vfs_inode_dotl.c | 11 +++++++++--
fs/afs/dir_silly.c | 4 ++--
fs/cifs/connect.c | 14 +++++++++++++-
fs/cifs/misc.c | 14 ++++++++++++--
fs/fscache/object.c | 2 +-
fs/fscache/operation.c | 3 +++
fs/nfs_common/grace.c | 1 -
12 files changed, 87 insertions(+), 54 deletions(-)

diff --git a/fs/9p/fid.c b/fs/9p/fid.c
index 9d9de62592be..b8863dd0de5c 100644
--- a/fs/9p/fid.c
+++ b/fs/9p/fid.c
@@ -19,18 +19,18 @@
#include "v9fs_vfs.h"
#include "fid.h"

+static inline void __add_fid(struct dentry *dentry, struct p9_fid *fid)
+{
+ hlist_add_head(&fid->dlist, (struct hlist_head *)&dentry->d_fsdata);
+}
+
+
/**
* v9fs_fid_add - add a fid to a dentry
* @dentry: dentry that the fid is being added to
* @fid: fid to add
*
*/
-
-static inline void __add_fid(struct dentry *dentry, struct p9_fid *fid)
-{
- hlist_add_head(&fid->dlist, (struct hlist_head *)&dentry->d_fsdata);
-}
-
void v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid)
{
spin_lock(&dentry->d_lock);
@@ -67,7 +67,7 @@ static struct p9_fid *v9fs_fid_find_inode(struct inode *inode, kuid_t uid)

/**
* v9fs_open_fid_add - add an open fid to an inode
- * @dentry: inode that the fid is being added to
+ * @inode: inode that the fid is being added to
* @fid: fid to add
*
*/
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index cdb99507ef33..2e0fa7c932db 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -155,6 +155,7 @@ int v9fs_show_options(struct seq_file *m, struct dentry *root)
/**
* v9fs_parse_options - parse mount options into session structure
* @v9ses: existing v9fs session information
+ * @opts: The mount option string
*
* Return 0 upon success, -ERRNO upon failure.
*/
@@ -542,12 +543,9 @@ extern int v9fs_error_init(void);
static struct kobject *v9fs_kobj;

#ifdef CONFIG_9P_FSCACHE
-/**
- * caches_show - list caches associated with a session
- *
- * Returns the size of buffer written.
+/*
+ * List caches associated with a session
*/
-
static ssize_t caches_show(struct kobject *kobj,
struct kobj_attribute *attr,
char *buf)
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index fd45874b55db..1c3708720fb9 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -88,7 +88,7 @@ static const struct netfs_read_request_ops v9fs_req_ops = {

/**
* v9fs_vfs_readpage - read an entire page in from 9P
- * @filp: file being read
+ * @file: file being read
* @page: structure to page
*
*/
@@ -108,6 +108,8 @@ static void v9fs_vfs_readahead(struct readahead_control *ractl)

/**
* v9fs_release_page - release the private state associated with a page
+ * @page: The page to be released
+ * @gfp: The caller's allocation restrictions
*
* Returns 1 if the page can be released, false otherwise.
*/
@@ -128,9 +130,9 @@ static int v9fs_release_page(struct page *page, gfp_t gfp)

/**
* v9fs_invalidate_page - Invalidate a page completely or partially
- *
- * @page: structure to page
- * @offset: offset in the page
+ * @page: The page to be invalidated
+ * @offset: offset of the invalidated region
+ * @length: length of the invalidated region
*/

static void v9fs_invalidate_page(struct page *page, unsigned int offset,
@@ -190,6 +192,8 @@ static int v9fs_vfs_writepage(struct page *page, struct writeback_control *wbc)

/**
* v9fs_launder_page - Writeback a dirty page
+ * @page: The page to be cleaned up
+ *
* Returns 0 on success.
*/

@@ -209,6 +213,7 @@ static int v9fs_launder_page(struct page *page)
/**
* v9fs_direct_IO - 9P address space operation for direct I/O
* @iocb: target I/O control block
+ * @iter: The data/buffer to use
*
* The presence of v9fs_direct_IO() in the address space ops vector
* allowes open() O_DIRECT flags which would have failed otherwise.
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 4b617d10cf28..170d4612a031 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -359,14 +359,11 @@ static int v9fs_file_flock_dotl(struct file *filp, int cmd,
}

/**
- * v9fs_file_read - read from a file
- * @filp: file pointer to read
- * @udata: user data buffer to read data into
- * @count: size of buffer
- * @offset: offset at which to read data
+ * v9fs_file_read_iter - read from a file
+ * @iocb: The operation parameters
+ * @to: The buffer to read into
*
*/
-
static ssize_t
v9fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
{
@@ -388,11 +385,9 @@ v9fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
}

/**
- * v9fs_file_write - write to a file
- * @filp: file pointer to write
- * @data: data buffer to write data from
- * @count: size of buffer
- * @offset: offset at which to write data
+ * v9fs_file_write_iter - write to a file
+ * @iocb: The operation parameters
+ * @from: The data to write
*
*/
static ssize_t
@@ -574,11 +569,9 @@ v9fs_vm_page_mkwrite(struct vm_fault *vmf)
}

/**
- * v9fs_mmap_file_read - read from a file
- * @filp: file pointer to read
- * @data: user data buffer to read data into
- * @count: size of buffer
- * @offset: offset at which to read data
+ * v9fs_mmap_file_read_iter - read from a file
+ * @iocb: The operation parameters
+ * @to: The buffer to read into
*
*/
static ssize_t
@@ -589,11 +582,9 @@ v9fs_mmap_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
}

/**
- * v9fs_mmap_file_write - write to a file
- * @filp: file pointer to write
- * @data: data buffer to write data from
- * @count: size of buffer
- * @offset: offset at which to write data
+ * v9fs_mmap_file_write_iter - write to a file
+ * @iocb: The operation parameters
+ * @from: The data to write
*
*/
static ssize_t
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 795706520b5e..08f48b70a741 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -218,7 +218,7 @@ v9fs_blank_wstat(struct p9_wstat *wstat)

/**
* v9fs_alloc_inode - helper function to allocate an inode
- *
+ * @sb: The superblock to allocate the inode from
*/
struct inode *v9fs_alloc_inode(struct super_block *sb)
{
@@ -238,7 +238,7 @@ struct inode *v9fs_alloc_inode(struct super_block *sb)

/**
* v9fs_free_inode - destroy an inode
- *
+ * @inode: The inode to be freed
*/

void v9fs_free_inode(struct inode *inode)
@@ -343,7 +343,7 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,
* v9fs_get_inode - helper function to setup an inode
* @sb: superblock
* @mode: mode to setup inode with
- *
+ * @rdev: The device numbers to set
*/

struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode, dev_t rdev)
@@ -369,7 +369,7 @@ struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode, dev_t rdev)
}

/**
- * v9fs_clear_inode - release an inode
+ * v9fs_evict_inode - Remove an inode from the inode cache
* @inode: inode to release
*
*/
@@ -665,14 +665,15 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,

/**
* v9fs_vfs_create - VFS hook to create a regular file
+ * @mnt_userns: The user namespace of the mount
+ * @dir: The parent directory
+ * @dentry: The name of file to be created
+ * @mode: The UNIX file mode to set
+ * @excl: True if the file must not yet exist
*
* open(.., O_CREAT) is handled in v9fs_vfs_atomic_open(). This is only called
* for mknod(2).
*
- * @dir: directory inode that is being created
- * @dentry: dentry that is being deleted
- * @mode: create permissions
- *
*/

static int
@@ -696,6 +697,7 @@ v9fs_vfs_create(struct user_namespace *mnt_userns, struct inode *dir,

/**
* v9fs_vfs_mkdir - VFS mkdir hook to create a directory
+ * @mnt_userns: The user namespace of the mount
* @dir: inode that is being unlinked
* @dentry: dentry that is being unlinked
* @mode: mode for new directory
@@ -900,10 +902,12 @@ int v9fs_vfs_rmdir(struct inode *i, struct dentry *d)

/**
* v9fs_vfs_rename - VFS hook to rename an inode
+ * @mnt_userns: The user namespace of the mount
* @old_dir: old dir inode
* @old_dentry: old dentry
* @new_dir: new dir inode
* @new_dentry: new dentry
+ * @flags: RENAME_* flags
*
*/

@@ -1009,6 +1013,7 @@ v9fs_vfs_rename(struct user_namespace *mnt_userns, struct inode *old_dir,

/**
* v9fs_vfs_getattr - retrieve file metadata
+ * @mnt_userns: The user namespace of the mount
* @path: Object to query
* @stat: metadata structure to populate
* @request_mask: Mask of STATX_xxx flags indicating the caller's interests
@@ -1050,6 +1055,7 @@ v9fs_vfs_getattr(struct user_namespace *mnt_userns, const struct path *path,

/**
* v9fs_vfs_setattr - set file metadata
+ * @mnt_userns: The user namespace of the mount
* @dentry: file whose metadata to set
* @iattr: metadata assignment structure
*
@@ -1285,6 +1291,7 @@ static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,

/**
* v9fs_vfs_symlink - helper function to create symlinks
+ * @mnt_userns: The user namespace of the mount
* @dir: directory inode containing symlink
* @dentry: dentry for symlink
* @symname: symlink data
@@ -1340,6 +1347,7 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir,

/**
* v9fs_vfs_mknod - create a special file
+ * @mnt_userns: The user namespace of the mount
* @dir: inode destination for new link
* @dentry: dentry for file
* @mode: mode for creation
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index e1c0240b51c0..01b9e1281a29 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -37,7 +37,10 @@ v9fs_vfs_mknod_dotl(struct user_namespace *mnt_userns, struct inode *dir,
struct dentry *dentry, umode_t omode, dev_t rdev);

/**
- * v9fs_get_fsgid_for_create - Helper function to get the gid for creating a
+ * v9fs_get_fsgid_for_create - Helper function to get the gid for a new object
+ * @dir_inode: The directory inode
+ *
+ * Helper function to get the gid for creating a
* new file system object. This checks the S_ISGID to determine the owning
* group of the new file system object.
*/
@@ -211,12 +214,13 @@ int v9fs_open_to_dotl_flags(int flags)

/**
* v9fs_vfs_create_dotl - VFS hook to create files for 9P2000.L protocol.
+ * @mnt_userns: The user namespace of the mount
* @dir: directory inode that is being created
* @dentry: dentry that is being deleted
* @omode: create permissions
+ * @excl: True if the file must not yet exist
*
*/
-
static int
v9fs_vfs_create_dotl(struct user_namespace *mnt_userns, struct inode *dir,
struct dentry *dentry, umode_t omode, bool excl)
@@ -361,6 +365,7 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,

/**
* v9fs_vfs_mkdir_dotl - VFS mkdir hook to create a directory
+ * @mnt_userns: The user namespace of the mount
* @dir: inode that is being unlinked
* @dentry: dentry that is being unlinked
* @omode: mode for new directory
@@ -537,6 +542,7 @@ static int v9fs_mapped_iattr_valid(int iattr_valid)

/**
* v9fs_vfs_setattr_dotl - set file metadata
+ * @mnt_userns: The user namespace of the mount
* @dentry: file whose metadata to set
* @iattr: metadata assignment structure
*
@@ -816,6 +822,7 @@ v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,

/**
* v9fs_vfs_mknod_dotl - create a special file
+ * @mnt_userns: The user namespace of the mount
* @dir: inode destination for new link
* @dentry: dentry for file
* @omode: mode for creation
diff --git a/fs/afs/dir_silly.c b/fs/afs/dir_silly.c
index dae9a57d7ec0..45cfd50a9521 100644
--- a/fs/afs/dir_silly.c
+++ b/fs/afs/dir_silly.c
@@ -86,8 +86,8 @@ static int afs_do_silly_rename(struct afs_vnode *dvnode, struct afs_vnode *vnode
return afs_do_sync_operation(op);
}

-/**
- * afs_sillyrename - Perform a silly-rename of a dentry
+/*
+ * Perform silly-rename of a dentry.
*
* AFS is stateless and the server doesn't know when the client is holding a
* file open. To prevent application problems when a file is unlinked while
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 0db344807ef1..a725377d662b 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1090,7 +1090,7 @@ cifs_demultiplex_thread(void *p)
module_put_and_exit(0);
}

-/**
+/*
* Returns true if srcaddr isn't specified and rhs isn't specified, or
* if srcaddr is specified and matches the IP address of the rhs argument
*/
@@ -1550,6 +1550,8 @@ static int match_session(struct cifs_ses *ses, struct smb3_fs_context *ctx)

/**
* cifs_setup_ipc - helper to setup the IPC tcon for the session
+ * @ses: The session being set up
+ * @ctx: The mount context
*
* A new IPC connection is made and stored in the session
* tcon_ipc. The IPC tcon has the same lifetime as the session.
@@ -1605,6 +1607,7 @@ cifs_setup_ipc(struct cifs_ses *ses, struct smb3_fs_context *ctx)

/**
* cifs_free_ipc - helper to release the session IPC tcon
+ * @ses: The session being destroyed
*
* Needs to be called everytime a session is destroyed.
*
@@ -1855,6 +1858,8 @@ cifs_set_cifscreds(struct smb3_fs_context *ctx __attribute__((unused)),

/**
* cifs_get_smb_ses - get a session matching @ctx data from @server
+ * @server: The server we want to use
+ * @ctx: The mount context
*
* This function assumes it is being called from cifs_mount() where we
* already got a server reference (server refcount +1). See
@@ -2065,6 +2070,8 @@ cifs_put_tcon(struct cifs_tcon *tcon)

/**
* cifs_get_tcon - get a tcon matching @ctx data from @ses
+ * @ses: The session we're working in
+ * @ctx: The mount context.
*
* - tcon refcount is the number of mount points using the tcon.
* - ses refcount is the number of tcon using the session.
@@ -3032,6 +3039,11 @@ build_unc_path_to_root(const struct smb3_fs_context *ctx,

/**
* expand_dfs_referral - Perform a dfs referral query and update the cifs_sb
+ * @xid: The operation ID
+ * @ses: The session we're working in
+ * @ctx: The mount context
+ * @cifs_sb: The superblock private data
+ * @ref_path: The referral path
*
* If a referral is found, cifs_sb->ctx->mount_options will be (re-)allocated
* to a string containing updated options for the submount. Otherwise it
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 9469f1cf0b46..05225d13e3d4 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -591,6 +591,7 @@ void cifs_put_writer(struct cifsInodeInfo *cinode)

/**
* cifs_queue_oplock_break - queue the oplock break handler for cfile
+ * @cfile: The file to break the oplock on
*
* This function is called from the demultiplex thread when it
* receives an oplock break for @cfile.
@@ -1029,6 +1030,9 @@ setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw)

/**
* cifs_alloc_hash - allocate hash and hash context together
+ * @name: The name of the crypto hash algo
+ * @shash: Where to put the pointer to the hash algo
+ * @sdesc: Where to put the pointer to the hash descriptor
*
* The caller has to make sure @sdesc is initialized to either NULL or
* a valid context. Both can be freed via cifs_free_hash().
@@ -1067,6 +1071,8 @@ cifs_alloc_hash(const char *name,

/**
* cifs_free_hash - free hash and hash context together
+ * @shash: Where to find the pointer to the hash algo
+ * @sdesc: Where to find the pointer to the hash descriptor
*
* Freeing a NULL hash or context is safe.
*/
@@ -1082,8 +1088,10 @@ cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc)

/**
* rqst_page_get_length - obtain the length and offset for a page in smb_rqst
- * Input: rqst - a smb_rqst, page - a page index for rqst
- * Output: *len - the length for this page, *offset - the offset for this page
+ * @rqst: The request descriptor
+ * @page: The index of the page to query
+ * @len: Where to store the length for this page:
+ * @offset: Where to store the offset for this page
*/
void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
unsigned int *len, unsigned int *offset)
@@ -1116,6 +1124,8 @@ void extract_unc_hostname(const char *unc, const char **h, size_t *len)

/**
* copy_path_name - copy src path to dst, possibly truncating
+ * @dst: The destination buffer
+ * @src: The source name
*
* returns number of bytes written (including trailing nul)
*/
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index d7eab46dd826..86ad941726f7 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -77,7 +77,6 @@ static WORK_STATE(INIT_OBJECT, "INIT", fscache_initialise_object);
static WORK_STATE(PARENT_READY, "PRDY", fscache_parent_ready);
static WORK_STATE(ABORT_INIT, "ABRT", fscache_abort_initialisation);
static WORK_STATE(LOOK_UP_OBJECT, "LOOK", fscache_look_up_object);
-static WORK_STATE(CREATE_OBJECT, "CRTO", fscache_look_up_object);
static WORK_STATE(OBJECT_AVAILABLE, "AVBL", fscache_object_available);
static WORK_STATE(JUMPSTART_DEPS, "JUMP", fscache_jumpstart_dependents);

@@ -907,6 +906,7 @@ static void fscache_dequeue_object(struct fscache_object *object)
* @object: The object to ask about
* @data: The auxiliary data for the object
* @datalen: The size of the auxiliary data
+ * @object_size: The size of the object according to the server.
*
* This function consults the netfs about the coherency state of an object.
* The caller must be holding a ref on cookie->n_active (held by
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
index 433877107700..e002cdfaf3cc 100644
--- a/fs/fscache/operation.c
+++ b/fs/fscache/operation.c
@@ -22,7 +22,10 @@ static void fscache_operation_dummy_cancel(struct fscache_operation *op)

/**
* fscache_operation_init - Do basic initialisation of an operation
+ * @cookie: The cookie to operate on
* @op: The operation to initialise
+ * @processor: The function to perform the operation
+ * @cancel: A function to handle operation cancellation
* @release: The release function to assign
*
* Do basic initialisation of an operation. The caller must still set flags,
diff --git a/fs/nfs_common/grace.c b/fs/nfs_common/grace.c
index edec45831585..0a9b72685f98 100644
--- a/fs/nfs_common/grace.c
+++ b/fs/nfs_common/grace.c
@@ -42,7 +42,6 @@ EXPORT_SYMBOL_GPL(locks_start_grace);

/**
* locks_end_grace
- * @net: net namespace that this lock manager belongs to
* @lm: who this grace period is for
*
* Call this function to state that the given lock manager is ready to



2021-09-20 15:48:54

by Matthew Wilcox

[permalink] [raw]
Subject: Re: [RFC PATCH] fscache, 9p, afs, cifs, nfs: Deal with some warnings from W=1

On Mon, Sep 20, 2021 at 01:14:15PM +0100, David Howells wrote:
> +++ b/fs/9p/vfs_addr.c
> @@ -88,7 +88,7 @@ static const struct netfs_read_request_ops v9fs_req_ops = {
>
> /**
> * v9fs_vfs_readpage - read an entire page in from 9P
> - * @filp: file being read
> + * @file: file being read
> * @page: structure to page
> *
> */

This is an example of a weird pattern in filesystems. Several of
them have kernel-doc for the implementation of various ->ops methods.
I don't necessarily believe we should delete the comments (although is
there any useful information in the above?), but I don't see the point
in the comment being kernel-doc.

2021-09-20 15:57:21

by David Howells

[permalink] [raw]
Subject: Re: [RFC PATCH] fscache, 9p, afs, cifs, nfs: Deal with some warnings from W=1

Matthew Wilcox <[email protected]> wrote:

> > +++ b/fs/9p/vfs_addr.c
> > @@ -88,7 +88,7 @@ static const struct netfs_read_request_ops v9fs_req_ops = {
> >
> > /**
> > * v9fs_vfs_readpage - read an entire page in from 9P
> > - * @filp: file being read
> > + * @file: file being read
> > * @page: structure to page
> > *
> > */
>
> This is an example of a weird pattern in filesystems. Several of
> them have kernel-doc for the implementation of various ->ops methods.
> I don't necessarily believe we should delete the comments (although is
> there any useful information in the above?), but I don't see the point
> in the comment being kernel-doc.

Yeah - I would prefer to do that. Only kdoc it if it's inter-(sub-)driver API
- and if it is, it must have a namespacing prefix so that it is obvious in
amongst a kernel-wide general index.

David

2021-09-20 16:08:37

by Dominique Martinet

[permalink] [raw]
Subject: Re: [RFC PATCH] fscache, 9p, afs, cifs, nfs: Deal with some warnings from W=1

David Howells wrote on Mon, Sep 20, 2021 at 01:14:15PM +0100:
> Deal with some warnings generated from make W=1:
>
> (1) Add/remove/fix kerneldoc parameters descriptions.
>
> (2) afs_sillyrename() isn't an API functions, so remove the kerneldoc
> annotation.
>
> (3) The fscache object CREATE_OBJECT work state isn't used, so remove it.
>
> (4) Move __add_fid() from between v9fs_fid_add() and its comment.
>
> (5) 9p's caches_show() doesn't really make sense as an API function, show
> remove the kerneldoc annotation. It's also not prefixed with 'v9fs_'.

Happy with the 9p changes:
Reviewed-by: Dominique Martinet <[email protected]>

Having all of these in a single commit makes it difficult to deal but I
don't expect any conflict on my end, so happy to have it go in your
fscache tree.

Matthew Wilcox wrote on Mon, Sep 20, 2021 at 01:37:46PM +0100:
> This is an example of a weird pattern in filesystems. Several of
> them have kernel-doc for the implementation of various ->ops methods.
> I don't necessarily believe we should delete the comments (although is
> there any useful information in the above?), but I don't see the point
> in the comment being kernel-doc.

As far as I'm concerned this is just an "it's always been like this"
thing for me/9p, I wouldn't mind if it were all converted to normal
comments -- but now it's describing arguments by name having it as
kerneldoc has helped catch comments which didn't get updated when
function changed quite a few times in patches similar to this one so it
would only make sense if we remove obvious argument descriptions as well
in my opinion, and that's a bit of manual work.

--
Dominique


2021-09-20 18:21:02

by David Howells

[permalink] [raw]
Subject: Re: [RFC PATCH] fscache, 9p, afs, cifs, nfs: Deal with some warnings from W=1

Steve French <[email protected]> wrote:

> For the cifs ones in connect.c (and also ioctl.c), I had submitted a
> patch in rc1 for these (haven't heard back on that) but did not submit
> kerneldoc fixup for fs/cifs/misc.c. They seem trivial and safe, do
> you want to split those out and I can put them in?

I can, though the reason I did the patch is that the warnings are always
popping up in what I'm doing. I can drop the patch from mine when I'm done, I
guess.

David

2021-09-21 03:52:30

by Steve French

[permalink] [raw]
Subject: Re: [RFC PATCH] fscache, 9p, afs, cifs, nfs: Deal with some warnings from W=1

For the cifs ones in connect.c (and also ioctl.c), I had submitted a
patch in rc1 for these (haven't heard back on that) but did not submit
kerneldoc fixup for fs/cifs/misc.c. They seem trivial and safe, do
you want to split those out and I can put them in?

commit 4c51de1e8f928a5b05248714d832d7d991ac319a
Author: Steve French <[email protected]>
Date: Mon Sep 13 18:29:46 2021 -0500

cifs: fix incorrect kernel doc comments

Correct kernel-doc comments pointed out by the
automated kernel test robot.

Reported-by: kernel test robot <[email protected]>

On Mon, Sep 20, 2021 at 9:39 AM David Howells <[email protected]> wrote:
>
> Deal with some warnings generated from make W=1:
>
> (1) Add/remove/fix kerneldoc parameters descriptions.
>
> (2) afs_sillyrename() isn't an API functions, so remove the kerneldoc
> annotation.
>
> (3) The fscache object CREATE_OBJECT work state isn't used, so remove it.
>
> (4) Move __add_fid() from between v9fs_fid_add() and its comment.
>
> (5) 9p's caches_show() doesn't really make sense as an API function, show
> remove the kerneldoc annotation. It's also not prefixed with 'v9fs_'.
>
> (6) Remove the kerneldoc annotation on cifs_match_ipdaddr() as it's not
> fully documented.
>
> (7) Turn cifs' rqst_page_get_length()'s banner comment into a kerneldoc
> comment. It should probably be prefixed with "cifs_" though.
>
> Signed-off-by: David Howells <[email protected]>
> cc: Jeff Layton <[email protected]>
> cc: Dominique Martinet <[email protected]>
> cc: Marc Dionne <[email protected]>
> cc: Steve French <[email protected]>
> cc: Trond Myklebust <[email protected]>
> cc: Anna Schumaker <[email protected]>
> cc: Mauro Carvalho Chehab <[email protected]>
> cc: [email protected]
> cc: [email protected]
> cc: [email protected]
> cc: [email protected]
> cc: [email protected]
> cc: [email protected]
> ---
>
> fs/9p/fid.c | 14 +++++++-------
> fs/9p/v9fs.c | 8 +++-----
> fs/9p/vfs_addr.c | 13 +++++++++----
> fs/9p/vfs_file.c | 33 ++++++++++++---------------------
> fs/9p/vfs_inode.c | 24 ++++++++++++++++--------
> fs/9p/vfs_inode_dotl.c | 11 +++++++++--
> fs/afs/dir_silly.c | 4 ++--
> fs/cifs/connect.c | 14 +++++++++++++-
> fs/cifs/misc.c | 14 ++++++++++++--
> fs/fscache/object.c | 2 +-
> fs/fscache/operation.c | 3 +++
> fs/nfs_common/grace.c | 1 -
> 12 files changed, 87 insertions(+), 54 deletions(-)
>
> diff --git a/fs/9p/fid.c b/fs/9p/fid.c
> index 9d9de62592be..b8863dd0de5c 100644
> --- a/fs/9p/fid.c
> +++ b/fs/9p/fid.c
> @@ -19,18 +19,18 @@
> #include "v9fs_vfs.h"
> #include "fid.h"
>
> +static inline void __add_fid(struct dentry *dentry, struct p9_fid *fid)
> +{
> + hlist_add_head(&fid->dlist, (struct hlist_head *)&dentry->d_fsdata);
> +}
> +
> +
> /**
> * v9fs_fid_add - add a fid to a dentry
> * @dentry: dentry that the fid is being added to
> * @fid: fid to add
> *
> */
> -
> -static inline void __add_fid(struct dentry *dentry, struct p9_fid *fid)
> -{
> - hlist_add_head(&fid->dlist, (struct hlist_head *)&dentry->d_fsdata);
> -}
> -
> void v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid)
> {
> spin_lock(&dentry->d_lock);
> @@ -67,7 +67,7 @@ static struct p9_fid *v9fs_fid_find_inode(struct inode *inode, kuid_t uid)
>
> /**
> * v9fs_open_fid_add - add an open fid to an inode
> - * @dentry: inode that the fid is being added to
> + * @inode: inode that the fid is being added to
> * @fid: fid to add
> *
> */
> diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
> index cdb99507ef33..2e0fa7c932db 100644
> --- a/fs/9p/v9fs.c
> +++ b/fs/9p/v9fs.c
> @@ -155,6 +155,7 @@ int v9fs_show_options(struct seq_file *m, struct dentry *root)
> /**
> * v9fs_parse_options - parse mount options into session structure
> * @v9ses: existing v9fs session information
> + * @opts: The mount option string
> *
> * Return 0 upon success, -ERRNO upon failure.
> */
> @@ -542,12 +543,9 @@ extern int v9fs_error_init(void);
> static struct kobject *v9fs_kobj;
>
> #ifdef CONFIG_9P_FSCACHE
> -/**
> - * caches_show - list caches associated with a session
> - *
> - * Returns the size of buffer written.
> +/*
> + * List caches associated with a session
> */
> -
> static ssize_t caches_show(struct kobject *kobj,
> struct kobj_attribute *attr,
> char *buf)
> diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
> index fd45874b55db..1c3708720fb9 100644
> --- a/fs/9p/vfs_addr.c
> +++ b/fs/9p/vfs_addr.c
> @@ -88,7 +88,7 @@ static const struct netfs_read_request_ops v9fs_req_ops = {
>
> /**
> * v9fs_vfs_readpage - read an entire page in from 9P
> - * @filp: file being read
> + * @file: file being read
> * @page: structure to page
> *
> */
> @@ -108,6 +108,8 @@ static void v9fs_vfs_readahead(struct readahead_control *ractl)
>
> /**
> * v9fs_release_page - release the private state associated with a page
> + * @page: The page to be released
> + * @gfp: The caller's allocation restrictions
> *
> * Returns 1 if the page can be released, false otherwise.
> */
> @@ -128,9 +130,9 @@ static int v9fs_release_page(struct page *page, gfp_t gfp)
>
> /**
> * v9fs_invalidate_page - Invalidate a page completely or partially
> - *
> - * @page: structure to page
> - * @offset: offset in the page
> + * @page: The page to be invalidated
> + * @offset: offset of the invalidated region
> + * @length: length of the invalidated region
> */
>
> static void v9fs_invalidate_page(struct page *page, unsigned int offset,
> @@ -190,6 +192,8 @@ static int v9fs_vfs_writepage(struct page *page, struct writeback_control *wbc)
>
> /**
> * v9fs_launder_page - Writeback a dirty page
> + * @page: The page to be cleaned up
> + *
> * Returns 0 on success.
> */
>
> @@ -209,6 +213,7 @@ static int v9fs_launder_page(struct page *page)
> /**
> * v9fs_direct_IO - 9P address space operation for direct I/O
> * @iocb: target I/O control block
> + * @iter: The data/buffer to use
> *
> * The presence of v9fs_direct_IO() in the address space ops vector
> * allowes open() O_DIRECT flags which would have failed otherwise.
> diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
> index 4b617d10cf28..170d4612a031 100644
> --- a/fs/9p/vfs_file.c
> +++ b/fs/9p/vfs_file.c
> @@ -359,14 +359,11 @@ static int v9fs_file_flock_dotl(struct file *filp, int cmd,
> }
>
> /**
> - * v9fs_file_read - read from a file
> - * @filp: file pointer to read
> - * @udata: user data buffer to read data into
> - * @count: size of buffer
> - * @offset: offset at which to read data
> + * v9fs_file_read_iter - read from a file
> + * @iocb: The operation parameters
> + * @to: The buffer to read into
> *
> */
> -
> static ssize_t
> v9fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
> {
> @@ -388,11 +385,9 @@ v9fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
> }
>
> /**
> - * v9fs_file_write - write to a file
> - * @filp: file pointer to write
> - * @data: data buffer to write data from
> - * @count: size of buffer
> - * @offset: offset at which to write data
> + * v9fs_file_write_iter - write to a file
> + * @iocb: The operation parameters
> + * @from: The data to write
> *
> */
> static ssize_t
> @@ -574,11 +569,9 @@ v9fs_vm_page_mkwrite(struct vm_fault *vmf)
> }
>
> /**
> - * v9fs_mmap_file_read - read from a file
> - * @filp: file pointer to read
> - * @data: user data buffer to read data into
> - * @count: size of buffer
> - * @offset: offset at which to read data
> + * v9fs_mmap_file_read_iter - read from a file
> + * @iocb: The operation parameters
> + * @to: The buffer to read into
> *
> */
> static ssize_t
> @@ -589,11 +582,9 @@ v9fs_mmap_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
> }
>
> /**
> - * v9fs_mmap_file_write - write to a file
> - * @filp: file pointer to write
> - * @data: data buffer to write data from
> - * @count: size of buffer
> - * @offset: offset at which to write data
> + * v9fs_mmap_file_write_iter - write to a file
> + * @iocb: The operation parameters
> + * @from: The data to write
> *
> */
> static ssize_t
> diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
> index 795706520b5e..08f48b70a741 100644
> --- a/fs/9p/vfs_inode.c
> +++ b/fs/9p/vfs_inode.c
> @@ -218,7 +218,7 @@ v9fs_blank_wstat(struct p9_wstat *wstat)
>
> /**
> * v9fs_alloc_inode - helper function to allocate an inode
> - *
> + * @sb: The superblock to allocate the inode from
> */
> struct inode *v9fs_alloc_inode(struct super_block *sb)
> {
> @@ -238,7 +238,7 @@ struct inode *v9fs_alloc_inode(struct super_block *sb)
>
> /**
> * v9fs_free_inode - destroy an inode
> - *
> + * @inode: The inode to be freed
> */
>
> void v9fs_free_inode(struct inode *inode)
> @@ -343,7 +343,7 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,
> * v9fs_get_inode - helper function to setup an inode
> * @sb: superblock
> * @mode: mode to setup inode with
> - *
> + * @rdev: The device numbers to set
> */
>
> struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode, dev_t rdev)
> @@ -369,7 +369,7 @@ struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode, dev_t rdev)
> }
>
> /**
> - * v9fs_clear_inode - release an inode
> + * v9fs_evict_inode - Remove an inode from the inode cache
> * @inode: inode to release
> *
> */
> @@ -665,14 +665,15 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
>
> /**
> * v9fs_vfs_create - VFS hook to create a regular file
> + * @mnt_userns: The user namespace of the mount
> + * @dir: The parent directory
> + * @dentry: The name of file to be created
> + * @mode: The UNIX file mode to set
> + * @excl: True if the file must not yet exist
> *
> * open(.., O_CREAT) is handled in v9fs_vfs_atomic_open(). This is only called
> * for mknod(2).
> *
> - * @dir: directory inode that is being created
> - * @dentry: dentry that is being deleted
> - * @mode: create permissions
> - *
> */
>
> static int
> @@ -696,6 +697,7 @@ v9fs_vfs_create(struct user_namespace *mnt_userns, struct inode *dir,
>
> /**
> * v9fs_vfs_mkdir - VFS mkdir hook to create a directory
> + * @mnt_userns: The user namespace of the mount
> * @dir: inode that is being unlinked
> * @dentry: dentry that is being unlinked
> * @mode: mode for new directory
> @@ -900,10 +902,12 @@ int v9fs_vfs_rmdir(struct inode *i, struct dentry *d)
>
> /**
> * v9fs_vfs_rename - VFS hook to rename an inode
> + * @mnt_userns: The user namespace of the mount
> * @old_dir: old dir inode
> * @old_dentry: old dentry
> * @new_dir: new dir inode
> * @new_dentry: new dentry
> + * @flags: RENAME_* flags
> *
> */
>
> @@ -1009,6 +1013,7 @@ v9fs_vfs_rename(struct user_namespace *mnt_userns, struct inode *old_dir,
>
> /**
> * v9fs_vfs_getattr - retrieve file metadata
> + * @mnt_userns: The user namespace of the mount
> * @path: Object to query
> * @stat: metadata structure to populate
> * @request_mask: Mask of STATX_xxx flags indicating the caller's interests
> @@ -1050,6 +1055,7 @@ v9fs_vfs_getattr(struct user_namespace *mnt_userns, const struct path *path,
>
> /**
> * v9fs_vfs_setattr - set file metadata
> + * @mnt_userns: The user namespace of the mount
> * @dentry: file whose metadata to set
> * @iattr: metadata assignment structure
> *
> @@ -1285,6 +1291,7 @@ static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
>
> /**
> * v9fs_vfs_symlink - helper function to create symlinks
> + * @mnt_userns: The user namespace of the mount
> * @dir: directory inode containing symlink
> * @dentry: dentry for symlink
> * @symname: symlink data
> @@ -1340,6 +1347,7 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir,
>
> /**
> * v9fs_vfs_mknod - create a special file
> + * @mnt_userns: The user namespace of the mount
> * @dir: inode destination for new link
> * @dentry: dentry for file
> * @mode: mode for creation
> diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
> index e1c0240b51c0..01b9e1281a29 100644
> --- a/fs/9p/vfs_inode_dotl.c
> +++ b/fs/9p/vfs_inode_dotl.c
> @@ -37,7 +37,10 @@ v9fs_vfs_mknod_dotl(struct user_namespace *mnt_userns, struct inode *dir,
> struct dentry *dentry, umode_t omode, dev_t rdev);
>
> /**
> - * v9fs_get_fsgid_for_create - Helper function to get the gid for creating a
> + * v9fs_get_fsgid_for_create - Helper function to get the gid for a new object
> + * @dir_inode: The directory inode
> + *
> + * Helper function to get the gid for creating a
> * new file system object. This checks the S_ISGID to determine the owning
> * group of the new file system object.
> */
> @@ -211,12 +214,13 @@ int v9fs_open_to_dotl_flags(int flags)
>
> /**
> * v9fs_vfs_create_dotl - VFS hook to create files for 9P2000.L protocol.
> + * @mnt_userns: The user namespace of the mount
> * @dir: directory inode that is being created
> * @dentry: dentry that is being deleted
> * @omode: create permissions
> + * @excl: True if the file must not yet exist
> *
> */
> -
> static int
> v9fs_vfs_create_dotl(struct user_namespace *mnt_userns, struct inode *dir,
> struct dentry *dentry, umode_t omode, bool excl)
> @@ -361,6 +365,7 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
>
> /**
> * v9fs_vfs_mkdir_dotl - VFS mkdir hook to create a directory
> + * @mnt_userns: The user namespace of the mount
> * @dir: inode that is being unlinked
> * @dentry: dentry that is being unlinked
> * @omode: mode for new directory
> @@ -537,6 +542,7 @@ static int v9fs_mapped_iattr_valid(int iattr_valid)
>
> /**
> * v9fs_vfs_setattr_dotl - set file metadata
> + * @mnt_userns: The user namespace of the mount
> * @dentry: file whose metadata to set
> * @iattr: metadata assignment structure
> *
> @@ -816,6 +822,7 @@ v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
>
> /**
> * v9fs_vfs_mknod_dotl - create a special file
> + * @mnt_userns: The user namespace of the mount
> * @dir: inode destination for new link
> * @dentry: dentry for file
> * @omode: mode for creation
> diff --git a/fs/afs/dir_silly.c b/fs/afs/dir_silly.c
> index dae9a57d7ec0..45cfd50a9521 100644
> --- a/fs/afs/dir_silly.c
> +++ b/fs/afs/dir_silly.c
> @@ -86,8 +86,8 @@ static int afs_do_silly_rename(struct afs_vnode *dvnode, struct afs_vnode *vnode
> return afs_do_sync_operation(op);
> }
>
> -/**
> - * afs_sillyrename - Perform a silly-rename of a dentry
> +/*
> + * Perform silly-rename of a dentry.
> *
> * AFS is stateless and the server doesn't know when the client is holding a
> * file open. To prevent application problems when a file is unlinked while
> diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
> index 0db344807ef1..a725377d662b 100644
> --- a/fs/cifs/connect.c
> +++ b/fs/cifs/connect.c
> @@ -1090,7 +1090,7 @@ cifs_demultiplex_thread(void *p)
> module_put_and_exit(0);
> }
>
> -/**
> +/*
> * Returns true if srcaddr isn't specified and rhs isn't specified, or
> * if srcaddr is specified and matches the IP address of the rhs argument
> */
> @@ -1550,6 +1550,8 @@ static int match_session(struct cifs_ses *ses, struct smb3_fs_context *ctx)
>
> /**
> * cifs_setup_ipc - helper to setup the IPC tcon for the session
> + * @ses: The session being set up
> + * @ctx: The mount context
> *
> * A new IPC connection is made and stored in the session
> * tcon_ipc. The IPC tcon has the same lifetime as the session.
> @@ -1605,6 +1607,7 @@ cifs_setup_ipc(struct cifs_ses *ses, struct smb3_fs_context *ctx)
>
> /**
> * cifs_free_ipc - helper to release the session IPC tcon
> + * @ses: The session being destroyed
> *
> * Needs to be called everytime a session is destroyed.
> *
> @@ -1855,6 +1858,8 @@ cifs_set_cifscreds(struct smb3_fs_context *ctx __attribute__((unused)),
>
> /**
> * cifs_get_smb_ses - get a session matching @ctx data from @server
> + * @server: The server we want to use
> + * @ctx: The mount context
> *
> * This function assumes it is being called from cifs_mount() where we
> * already got a server reference (server refcount +1). See
> @@ -2065,6 +2070,8 @@ cifs_put_tcon(struct cifs_tcon *tcon)
>
> /**
> * cifs_get_tcon - get a tcon matching @ctx data from @ses
> + * @ses: The session we're working in
> + * @ctx: The mount context.
> *
> * - tcon refcount is the number of mount points using the tcon.
> * - ses refcount is the number of tcon using the session.
> @@ -3032,6 +3039,11 @@ build_unc_path_to_root(const struct smb3_fs_context *ctx,
>
> /**
> * expand_dfs_referral - Perform a dfs referral query and update the cifs_sb
> + * @xid: The operation ID
> + * @ses: The session we're working in
> + * @ctx: The mount context
> + * @cifs_sb: The superblock private data
> + * @ref_path: The referral path
> *
> * If a referral is found, cifs_sb->ctx->mount_options will be (re-)allocated
> * to a string containing updated options for the submount. Otherwise it
> diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
> index 9469f1cf0b46..05225d13e3d4 100644
> --- a/fs/cifs/misc.c
> +++ b/fs/cifs/misc.c
> @@ -591,6 +591,7 @@ void cifs_put_writer(struct cifsInodeInfo *cinode)
>
> /**
> * cifs_queue_oplock_break - queue the oplock break handler for cfile
> + * @cfile: The file to break the oplock on
> *
> * This function is called from the demultiplex thread when it
> * receives an oplock break for @cfile.
> @@ -1029,6 +1030,9 @@ setup_aio_ctx_iter(struct cifs_aio_ctx *ctx, struct iov_iter *iter, int rw)
>
> /**
> * cifs_alloc_hash - allocate hash and hash context together
> + * @name: The name of the crypto hash algo
> + * @shash: Where to put the pointer to the hash algo
> + * @sdesc: Where to put the pointer to the hash descriptor
> *
> * The caller has to make sure @sdesc is initialized to either NULL or
> * a valid context. Both can be freed via cifs_free_hash().
> @@ -1067,6 +1071,8 @@ cifs_alloc_hash(const char *name,
>
> /**
> * cifs_free_hash - free hash and hash context together
> + * @shash: Where to find the pointer to the hash algo
> + * @sdesc: Where to find the pointer to the hash descriptor
> *
> * Freeing a NULL hash or context is safe.
> */
> @@ -1082,8 +1088,10 @@ cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc)
>
> /**
> * rqst_page_get_length - obtain the length and offset for a page in smb_rqst
> - * Input: rqst - a smb_rqst, page - a page index for rqst
> - * Output: *len - the length for this page, *offset - the offset for this page
> + * @rqst: The request descriptor
> + * @page: The index of the page to query
> + * @len: Where to store the length for this page:
> + * @offset: Where to store the offset for this page
> */
> void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
> unsigned int *len, unsigned int *offset)
> @@ -1116,6 +1124,8 @@ void extract_unc_hostname(const char *unc, const char **h, size_t *len)
>
> /**
> * copy_path_name - copy src path to dst, possibly truncating
> + * @dst: The destination buffer
> + * @src: The source name
> *
> * returns number of bytes written (including trailing nul)
> */
> diff --git a/fs/fscache/object.c b/fs/fscache/object.c
> index d7eab46dd826..86ad941726f7 100644
> --- a/fs/fscache/object.c
> +++ b/fs/fscache/object.c
> @@ -77,7 +77,6 @@ static WORK_STATE(INIT_OBJECT, "INIT", fscache_initialise_object);
> static WORK_STATE(PARENT_READY, "PRDY", fscache_parent_ready);
> static WORK_STATE(ABORT_INIT, "ABRT", fscache_abort_initialisation);
> static WORK_STATE(LOOK_UP_OBJECT, "LOOK", fscache_look_up_object);
> -static WORK_STATE(CREATE_OBJECT, "CRTO", fscache_look_up_object);
> static WORK_STATE(OBJECT_AVAILABLE, "AVBL", fscache_object_available);
> static WORK_STATE(JUMPSTART_DEPS, "JUMP", fscache_jumpstart_dependents);
>
> @@ -907,6 +906,7 @@ static void fscache_dequeue_object(struct fscache_object *object)
> * @object: The object to ask about
> * @data: The auxiliary data for the object
> * @datalen: The size of the auxiliary data
> + * @object_size: The size of the object according to the server.
> *
> * This function consults the netfs about the coherency state of an object.
> * The caller must be holding a ref on cookie->n_active (held by
> diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
> index 433877107700..e002cdfaf3cc 100644
> --- a/fs/fscache/operation.c
> +++ b/fs/fscache/operation.c
> @@ -22,7 +22,10 @@ static void fscache_operation_dummy_cancel(struct fscache_operation *op)
>
> /**
> * fscache_operation_init - Do basic initialisation of an operation
> + * @cookie: The cookie to operate on
> * @op: The operation to initialise
> + * @processor: The function to perform the operation
> + * @cancel: A function to handle operation cancellation
> * @release: The release function to assign
> *
> * Do basic initialisation of an operation. The caller must still set flags,
> diff --git a/fs/nfs_common/grace.c b/fs/nfs_common/grace.c
> index edec45831585..0a9b72685f98 100644
> --- a/fs/nfs_common/grace.c
> +++ b/fs/nfs_common/grace.c
> @@ -42,7 +42,6 @@ EXPORT_SYMBOL_GPL(locks_start_grace);
>
> /**
> * locks_end_grace
> - * @net: net namespace that this lock manager belongs to
> * @lm: who this grace period is for
> *
> * Call this function to state that the given lock manager is ready to
>
>


--
Thanks,

Steve