[RFC PATCH v2] fscache, 9p, afs, nfs: Deal with some warnings from W=1
From: David Howells
Date: Tue Sep 28 2021 - 04:50:19 EST
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_'.
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Reviewed-by: Dominique Martinet <asmadeus@xxxxxxxxxxxxx>
cc: Jeff Layton <jlayton@xxxxxxxxxx>
cc: Marc Dionne <marc.dionne@xxxxxxxxxxxx>
cc: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
cc: Anna Schumaker <anna.schumaker@xxxxxxxxxx>
cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
cc: v9fs-developer@xxxxxxxxxxxxxxxxxxxxx
cc: linux-afs@xxxxxxxxxxxxxxxxxxx
cc: linux-nfs@xxxxxxxxxxxxxxx
cc: linux-fsdevel@xxxxxxxxxxxxxxx
cc: linux-doc@xxxxxxxxxxxxxxx
---
fs/9p/fid.c | 14 +++++++-------
fs/9p/v9fs.c | 8 +++-----
fs/9p/vfs_addr.c | 15 ++++++++++-----
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/fscache/object.c | 2 +-
fs/fscache/operation.c | 3 +++
fs/nfs_common/grace.c | 1 -
10 files changed, 63 insertions(+), 52 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 15017b7ce8f8..cff99f5c05e3 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -61,7 +61,7 @@ static void v9fs_init_rreq(struct netfs_read_request *rreq, struct file *file)
}
/**
- * v9fs_req_ceanup - Cleanup request initialized by v9fs_init_rreq
+ * v9fs_req_cleanup - Cleanup request initialized by v9fs_init_rreq
* @mapping: unused mapping of request to cleanup
* @priv: private data to cleanup, a fid, guaranted non-null.
*/
@@ -104,7 +104,7 @@ 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
*
*/
@@ -124,6 +124,8 @@ 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.
*/
@@ -144,9 +146,9 @@ 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,
@@ -206,6 +208,8 @@ 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.
*/
@@ -225,6 +229,7 @@ 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 7ed76a4c18f1..80052497f00f 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/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