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authorTejun Heo <tj@kernel.org>2013-11-28 14:54:31 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-11-29 17:55:10 -0800
commitae6621b0716852146e4655fef7f74a181faa6c81 (patch)
tree04b4e642dee773bc6acb4da51c56f0d19090de3e /fs/sysfs/sysfs.h
parentccf73cf336dc55bc52748205dee998d2fd4a8808 (diff)
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.h102
1 files changed, 6 insertions, 96 deletions
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 85315e228408..f8c936f31b37 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 */