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proc: Add proc_mkdir_data()

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Add proc_mkdir_data() to allow procfs directories to be created that are
annotated at the time of creation with private data rather than doing this
post-creation.  This means no access is then required to the proc_dir_entry
struct to set this.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: Neela Syam Kolli <megaraidlinux@lsi.com>
cc: Jerry Chuang <jerry-chuang@realtek.com>
cc: linux-scsi@vger.kernel.org
cc: devel@driverdev.osuosl.org
cc: linux-wireless@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
David Howells
2013-04-12 02:48:30 +01:00
committed by Al Viro
parent 34db8aaf0f
commit 270b5ac215
6 changed files with 30 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
include/linux/proc_fs.h
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@@ -73,6 +73,8 @@ extern int remove_proc_subtree(const char *name, struct proc_dir_entry *parent);
extern struct proc_dir_entry *proc_symlink(const char *,
struct proc_dir_entry *, const char *);
extern struct proc_dir_entry *proc_mkdir(const char *,struct proc_dir_entry *);
extern struct proc_dir_entry *proc_mkdir_data(const char *, umode_t,
struct proc_dir_entry *, void *);
extern struct proc_dir_entry *proc_mkdir_mode(const char *name, umode_t mode,
struct proc_dir_entry *parent);
@@ -82,9 +84,6 @@ static inline struct proc_dir_entry *proc_create(const char *name, umode_t mode,
return proc_create_data(name, mode, parent, proc_fops, NULL);
}
extern struct proc_dir_entry *proc_net_mkdir(struct net *net, const char *name,
struct proc_dir_entry *parent);
extern void proc_set_size(struct proc_dir_entry *, loff_t);
extern void proc_set_user(struct proc_dir_entry *, kuid_t, kgid_t);
#else
@@ -108,6 +107,8 @@ static inline struct proc_dir_entry *proc_symlink(const char *name,
struct proc_dir_entry *parent,const char *dest) {return NULL;}
static inline struct proc_dir_entry *proc_mkdir(const char *name,
struct proc_dir_entry *parent) {return NULL;}
static inline struct proc_dir_entry *proc_mkdir_data(const char *name,
umode_t mode, struct proc_dir_entry *parent, void *data) { return NULL; }
static inline struct proc_dir_entry *proc_mkdir_mode(const char *name,
umode_t mode, struct proc_dir_entry *parent) { return NULL; }
static inline void proc_set_size(struct proc_dir_entry *de, loff_t size) {}
@@ -153,4 +154,10 @@ static inline void *PDE_DATA(const struct inode *inode)
return PROC_I(inode)->pde->data;
}
static inline struct proc_dir_entry *proc_net_mkdir(
struct net *net, const char *name, struct proc_dir_entry *parent)
{
return proc_mkdir_data(name, 0, parent, net);
}
#endif /* _LINUX_PROC_FS_H */