diff options
author | Tejun Heo <tj@kernel.org> | 2013-11-28 19:54:31 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-11-30 01:55:10 (GMT) |
commit | ae6621b0716852146e4655fef7f74a181faa6c81 (patch) | |
tree | 04b4e642dee773bc6acb4da51c56f0d19090de3e /fs/sysfs/sysfs.h | |
parent | ccf73cf336dc55bc52748205dee998d2fd4a8808 (diff) | |
download | linux-ae6621b0716852146e4655fef7f74a181faa6c81.tar.xz |
sysfs, kernfs: move internal decls to fs/kernfs/kernfs-internal.h
Move data structure, constant and basic accessor declarations from
fs/sysfs/sysfs.h to fs/kernfs/kernfs-internal.h. The two files
currently include each other. Once kernfs / sysfs separation is
complete, the cross inclusions will be removed. Inclusion protectors
are added to fs/sysfs/sysfs.h to allow cross-inclusion.
This patch doesn't introduce any functional changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/sysfs/sysfs.h')
-rw-r--r-- | fs/sysfs/sysfs.h | 102 |
1 files changed, 6 insertions, 96 deletions
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h index 85315e2..f8c936f 100644 --- a/fs/sysfs/sysfs.h +++ b/fs/sysfs/sysfs.h @@ -8,103 +8,11 @@ * This file is released under the GPLv2. */ -#include <linux/lockdep.h> -#include <linux/kobject_ns.h> -#include <linux/fs.h> -#include <linux/rbtree.h> +#ifndef __SYSFS_INTERNAL_H +#define __SYSFS_INTERNAL_H -struct sysfs_open_dirent; - -/* type-specific structures for sysfs_dirent->s_* union members */ -struct sysfs_elem_dir { - unsigned long subdirs; - /* children rbtree starts here and goes through sd->s_rb */ - struct rb_root children; -}; - -struct sysfs_elem_symlink { - struct sysfs_dirent *target_sd; -}; - -struct sysfs_elem_attr { - const struct kernfs_ops *ops; - struct sysfs_open_dirent *open; - loff_t size; -}; - -struct sysfs_inode_attrs { - struct iattr ia_iattr; - void *ia_secdata; - u32 ia_secdata_len; -}; - -/* - * sysfs_dirent - the building block of sysfs hierarchy. Each and - * every sysfs node is represented by single sysfs_dirent. - * - * As long as s_count reference is held, the sysfs_dirent itself is - * accessible. Dereferencing s_elem or any other outer entity - * requires s_active reference. - */ -struct sysfs_dirent { - atomic_t s_count; - atomic_t s_active; -#ifdef CONFIG_DEBUG_LOCK_ALLOC - struct lockdep_map dep_map; -#endif - struct sysfs_dirent *s_parent; - const char *s_name; - - struct rb_node s_rb; - - union { - struct completion *completion; - struct sysfs_dirent *removed_list; - } u; - - const void *s_ns; /* namespace tag */ - unsigned int s_hash; /* ns + name hash */ - union { - struct sysfs_elem_dir s_dir; - struct sysfs_elem_symlink s_symlink; - struct sysfs_elem_attr s_attr; - }; - - void *priv; - - unsigned short s_flags; - umode_t s_mode; - unsigned int s_ino; - struct sysfs_inode_attrs *s_iattr; -}; - -#define SD_DEACTIVATED_BIAS INT_MIN - -#define SYSFS_TYPE_MASK 0x000f -#define SYSFS_DIR 0x0001 -#define SYSFS_KOBJ_ATTR 0x0002 -#define SYSFS_KOBJ_LINK 0x0004 -#define SYSFS_COPY_NAME (SYSFS_DIR | SYSFS_KOBJ_LINK) -#define SYSFS_ACTIVE_REF SYSFS_KOBJ_ATTR - -#define SYSFS_FLAG_MASK ~SYSFS_TYPE_MASK -#define SYSFS_FLAG_REMOVED 0x0010 -#define SYSFS_FLAG_NS 0x0020 -#define SYSFS_FLAG_HAS_SEQ_SHOW 0x0040 -#define SYSFS_FLAG_HAS_MMAP 0x0080 -#define SYSFS_FLAG_LOCKDEP 0x0100 - -static inline unsigned int sysfs_type(struct sysfs_dirent *sd) -{ - return sd->s_flags & SYSFS_TYPE_MASK; -} - -/* - * Context structure to be used while adding/removing nodes. - */ -struct sysfs_addrm_cxt { - struct sysfs_dirent *removed; -}; +#include "../kernfs/kernfs-internal.h" +#include <linux/sysfs.h> /* * mount.c @@ -175,3 +83,5 @@ void sysfs_unmap_bin_file(struct sysfs_dirent *sd); extern const struct inode_operations sysfs_symlink_inode_operations; int sysfs_create_link_sd(struct sysfs_dirent *sd, struct kobject *target, const char *name); + +#endif /* __SYSFS_INTERNAL_H */ |