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kernfs: s/sysfs/kernfs/ in constants

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kernfs has just been separated out from sysfs and we're already in
full conflict mode.  Nothing can make the situation any worse.  Let's
take the chance to name things properly.

This patch performs the following renames.

* s/SYSFS_DIR/KERNFS_DIR/
* s/SYSFS_KOBJ_ATTR/KERNFS_FILE/
* s/SYSFS_KOBJ_LINK/KERNFS_LINK/
* s/SYSFS_{TYPE_FLAGS}/KERNFS_{TYPE_FLAGS}/
* s/SYSFS_FLAG_{FLAG}/KERNFS_{FLAG}/
* s/sysfs_type()/kernfs_type()/
* s/SD_DEACTIVATED_BIAS/KN_DEACTIVATED_BIAS/

This patch is strictly rename only and doesn't introduce any
functional difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tejun Heo 2013-12-11 14:11:56 -05:00 committed by Greg Kroah-Hartman
parent c525aaddc3
commit df23fc39bc
9 changed files with 63 additions and 63 deletions
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50
fs/kernfs/dir.c
View File

@ -78,7 +78,7 @@ static int sysfs_link_sibling(struct kernfs_node *kn)
struct rb_node **node = &kn->parent->dir.children.rb_node;
struct rb_node *parent = NULL;
if (sysfs_type(kn) == SYSFS_DIR)
if (kernfs_type(kn) == KERNFS_DIR)
kn->parent->dir.subdirs++;
while (*node) {
@ -113,7 +113,7 @@ static int sysfs_link_sibling(struct kernfs_node *kn)
*/
static void sysfs_unlink_sibling(struct kernfs_node *kn)
{
if (sysfs_type(kn) == SYSFS_DIR)
if (kernfs_type(kn) == KERNFS_DIR)
kn->parent->dir.subdirs--;
rb_erase(&kn->rb, &kn->parent->dir.children);
@ -137,7 +137,7 @@ struct kernfs_node *sysfs_get_active(struct kernfs_node *kn)
if (!atomic_inc_unless_negative(&kn->active))
return NULL;
if (kn->flags & SYSFS_FLAG_LOCKDEP)
if (kn->flags & KERNFS_LOCKDEP)
rwsem_acquire_read(&kn->dep_map, 0, 1, _RET_IP_);
return kn;
}
@ -156,10 +156,10 @@ void sysfs_put_active(struct kernfs_node *kn)
if (unlikely(!kn))
return;
if (kn->flags & SYSFS_FLAG_LOCKDEP)
if (kn->flags & KERNFS_LOCKDEP)
rwsem_release(&kn->dep_map, 1, _RET_IP_);
v = atomic_dec_return(&kn->active);
if (likely(v != SD_DEACTIVATED_BIAS))
if (likely(v != KN_DEACTIVATED_BIAS))
return;
/*
@ -180,9 +180,9 @@ static void sysfs_deactivate(struct kernfs_node *kn)
DECLARE_COMPLETION_ONSTACK(wait);
int v;
BUG_ON(!(kn->flags & SYSFS_FLAG_REMOVED));
BUG_ON(!(kn->flags & KERNFS_REMOVED));
if (!(sysfs_type(kn) & SYSFS_ACTIVE_REF))
if (!(kernfs_type(kn) & KERNFS_ACTIVE_REF))
return;
kn->u.completion = (void *)&wait;
@ -191,9 +191,9 @@ static void sysfs_deactivate(struct kernfs_node *kn)
/* atomic_add_return() is a mb(), put_active() will always see
* the updated kn->u.completion.
*/
v = atomic_add_return(SD_DEACTIVATED_BIAS, &kn->active);
v = atomic_add_return(KN_DEACTIVATED_BIAS, &kn->active);
if (v != SD_DEACTIVATED_BIAS) {
if (v != KN_DEACTIVATED_BIAS) {
lock_contended(&kn->dep_map, _RET_IP_);
wait_for_completion(&wait);
}
@ -235,13 +235,13 @@ void kernfs_put(struct kernfs_node *kn)
*/
parent = kn->parent;
WARN(!(kn->flags & SYSFS_FLAG_REMOVED),
WARN(!(kn->flags & KERNFS_REMOVED),
"sysfs: free using entry: %s/%s\n",
parent ? parent->name : "", kn->name);
if (sysfs_type(kn) == SYSFS_KOBJ_LINK)
if (kernfs_type(kn) == KERNFS_LINK)
kernfs_put(kn->symlink.target_kn);
if (sysfs_type(kn) & SYSFS_COPY_NAME)
if (kernfs_type(kn) & KERNFS_COPY_NAME)
kfree(kn->name);
if (kn->iattr) {
if (kn->iattr->ia_secdata)
@ -268,7 +268,7 @@ EXPORT_SYMBOL_GPL(kernfs_put);
static int sysfs_dentry_delete(const struct dentry *dentry)
{
struct kernfs_node *kn = dentry->d_fsdata;
return !(kn && !(kn->flags & SYSFS_FLAG_REMOVED));
return !(kn && !(kn->flags & KERNFS_REMOVED));
}
static int sysfs_dentry_revalidate(struct dentry *dentry, unsigned int flags)
@ -282,7 +282,7 @@ static int sysfs_dentry_revalidate(struct dentry *dentry, unsigned int flags)
mutex_lock(&sysfs_mutex);
/* The sysfs dirent has been deleted */
if (kn->flags & SYSFS_FLAG_REMOVED)
if (kn->flags & KERNFS_REMOVED)
goto out_bad;
/* The sysfs dirent has been moved? */
@ -342,7 +342,7 @@ struct kernfs_node *sysfs_new_dirent(struct kernfs_root *root,
struct kernfs_node *kn;
int ret;
if (type & SYSFS_COPY_NAME) {
if (type & KERNFS_COPY_NAME) {
name = dup_name = kstrdup(name, GFP_KERNEL);
if (!name)
return NULL;
@ -362,7 +362,7 @@ struct kernfs_node *sysfs_new_dirent(struct kernfs_root *root,
kn->name = name;
kn->mode = mode;
kn->flags = type | SYSFS_FLAG_REMOVED;
kn->flags = type | KERNFS_REMOVED;
return kn;
@ -427,7 +427,7 @@ int sysfs_add_one(struct kernfs_addrm_cxt *acxt, struct kernfs_node *kn,
return -EINVAL;
}
if (sysfs_type(parent) != SYSFS_DIR)
if (kernfs_type(parent) != KERNFS_DIR)
return -EINVAL;
kn->hash = sysfs_name_hash(kn->name, kn->ns);
@ -446,7 +446,7 @@ int sysfs_add_one(struct kernfs_addrm_cxt *acxt, struct kernfs_node *kn,
}
/* Mark the entry added into directory tree */
kn->flags &= ~SYSFS_FLAG_REMOVED;
kn->flags &= ~KERNFS_REMOVED;
return 0;
}
@ -475,7 +475,7 @@ static void sysfs_remove_one(struct kernfs_addrm_cxt *acxt,
* Removal can be called multiple times on the same node. Only the
* first invocation is effective and puts the base ref.
*/
if (kn->flags & SYSFS_FLAG_REMOVED)
if (kn->flags & KERNFS_REMOVED)
return;
if (kn->parent) {
@ -489,7 +489,7 @@ static void sysfs_remove_one(struct kernfs_addrm_cxt *acxt,
}
}
kn->flags |= SYSFS_FLAG_REMOVED;
kn->flags |= KERNFS_REMOVED;
kn->u.removed_list = acxt->removed;
acxt->removed = kn;
}
@ -607,14 +607,14 @@ struct kernfs_root *kernfs_create_root(void *priv)
ida_init(&root->ino_ida);
kn = sysfs_new_dirent(root, "", S_IFDIR | S_IRUGO | S_IXUGO, SYSFS_DIR);
kn = sysfs_new_dirent(root, "", S_IFDIR | S_IRUGO | S_IXUGO, KERNFS_DIR);
if (!kn) {
ida_destroy(&root->ino_ida);
kfree(root);
return ERR_PTR(-ENOMEM);
}
kn->flags &= ~SYSFS_FLAG_REMOVED;
kn->flags &= ~KERNFS_REMOVED;
kn->priv = priv;
kn->dir.root = root;
@ -654,7 +654,7 @@ struct kernfs_node *kernfs_create_dir_ns(struct kernfs_node *parent,
int rc;
/* allocate */
kn = sysfs_new_dirent(kernfs_root(parent), name, mode, SYSFS_DIR);
kn = sysfs_new_dirent(kernfs_root(parent), name, mode, KERNFS_DIR);
if (!kn)
return ERR_PTR(-ENOMEM);
@ -732,7 +732,7 @@ static struct kernfs_node *sysfs_leftmost_descendant(struct kernfs_node *pos)
last = pos;
if (sysfs_type(pos) != SYSFS_DIR)
if (kernfs_type(pos) != KERNFS_DIR)
break;
rbn = rb_first(&pos->dir.children);
@ -914,7 +914,7 @@ static struct kernfs_node *sysfs_dir_pos(const void *ns,
struct kernfs_node *parent, loff_t hash, struct kernfs_node *pos)
{
if (pos) {
int valid = !(pos->flags & SYSFS_FLAG_REMOVED) &&
int valid = !(pos->flags & KERNFS_REMOVED) &&
pos->parent == parent && hash == pos->hash;
kernfs_put(pos);
if (!valid)

18
fs/kernfs/file.c
View File

@ -49,7 +49,7 @@ static struct kernfs_open_file *kernfs_of(struct file *file)
*/
static const struct kernfs_ops *kernfs_ops(struct kernfs_node *kn)
{
if (kn->flags & SYSFS_FLAG_LOCKDEP)
if (kn->flags & KERNFS_LOCKDEP)
lockdep_assert_held(kn);
return kn->attr.ops;
}
@ -189,7 +189,7 @@ static ssize_t kernfs_file_read(struct file *file, char __user *user_buf,
{
struct kernfs_open_file *of = kernfs_of(file);
if (of->kn->flags & SYSFS_FLAG_HAS_SEQ_SHOW)
if (of->kn->flags & KERNFS_HAS_SEQ_SHOW)
return seq_read(file, user_buf, count, ppos);
else
return kernfs_file_direct_read(of, user_buf, count, ppos);
@ -428,7 +428,7 @@ static int kernfs_file_mmap(struct file *file, struct vm_area_struct *vma)
* without grabbing @of->mutex by testing HAS_MMAP flag. See the
* comment in kernfs_file_open() for more details.
*/
if (!(of->kn->flags & SYSFS_FLAG_HAS_MMAP))
if (!(of->kn->flags & KERNFS_HAS_MMAP))
return -ENODEV;
mutex_lock(&of->mutex);
@ -668,7 +668,7 @@ void sysfs_unmap_bin_file(struct kernfs_node *kn)
struct kernfs_open_node *on;
struct kernfs_open_file *of;
if (!(kn->flags & SYSFS_FLAG_HAS_MMAP))
if (!(kn->flags & KERNFS_HAS_MMAP))
return;
spin_lock_irq(&kernfs_open_node_lock);
@ -738,7 +738,7 @@ void kernfs_notify(struct kernfs_node *kn)
spin_lock_irqsave(&kernfs_open_node_lock, flags);
if (!WARN_ON(sysfs_type(kn) != SYSFS_KOBJ_ATTR)) {
if (!WARN_ON(kernfs_type(kn) != KERNFS_FILE)) {
on = kn->attr.open;
if (on) {
atomic_inc(&on->event);
@ -785,7 +785,7 @@ struct kernfs_node *kernfs_create_file_ns_key(struct kernfs_node *parent,
int rc;
kn = sysfs_new_dirent(kernfs_root(parent), name,
(mode & S_IALLUGO) | S_IFREG, SYSFS_KOBJ_ATTR);
(mode & S_IALLUGO) | S_IFREG, KERNFS_FILE);
if (!kn)
return ERR_PTR(-ENOMEM);
@ -797,7 +797,7 @@ struct kernfs_node *kernfs_create_file_ns_key(struct kernfs_node *parent,
#ifdef CONFIG_DEBUG_LOCK_ALLOC
if (key) {
lockdep_init_map(&kn->dep_map, "s_active", key, 0);
kn->flags |= SYSFS_FLAG_LOCKDEP;
kn->flags |= KERNFS_LOCKDEP;
}
#endif
@ -807,9 +807,9 @@ struct kernfs_node *kernfs_create_file_ns_key(struct kernfs_node *parent,
* ref. Cache their existence in flags.
*/
if (ops->seq_show)
kn->flags |= SYSFS_FLAG_HAS_SEQ_SHOW;
kn->flags |= KERNFS_HAS_SEQ_SHOW;
if (ops->mmap)
kn->flags |= SYSFS_FLAG_HAS_MMAP;
kn->flags |= KERNFS_HAS_MMAP;
sysfs_addrm_start(&acxt);
rc = sysfs_add_one(&acxt, kn, parent);

10
fs/kernfs/inode.c
View File

@ -269,7 +269,7 @@ static void sysfs_refresh_inode(struct kernfs_node *kn, struct inode *inode)
attrs->ia_secdata_len);
}
if (sysfs_type(kn) == SYSFS_DIR)
if (kernfs_type(kn) == KERNFS_DIR)
set_nlink(inode, kn->dir.subdirs + 2);
}
@ -299,16 +299,16 @@ static void sysfs_init_inode(struct kernfs_node *kn, struct inode *inode)
sysfs_refresh_inode(kn, inode);
/* initialize inode according to type */
switch (sysfs_type(kn)) {
case SYSFS_DIR:
switch (kernfs_type(kn)) {
case KERNFS_DIR:
inode->i_op = &sysfs_dir_inode_operations;
inode->i_fop = &sysfs_dir_operations;
break;
case SYSFS_KOBJ_ATTR:
case KERNFS_FILE:
inode->i_size = kn->attr.size;
inode->i_fop = &kernfs_file_operations;
break;
case SYSFS_KOBJ_LINK:
case KERNFS_LINK:
inode->i_op = &sysfs_symlink_inode_operations;
break;
default:

4
fs/kernfs/kernfs-internal.h
View File

@ -26,9 +26,9 @@ struct kernfs_iattrs {
struct simple_xattrs xattrs;
};
#define SD_DEACTIVATED_BIAS INT_MIN
#define KN_DEACTIVATED_BIAS INT_MIN
/* SYSFS_TYPE_MASK and types are defined in include/linux/kernfs.h */
/* KERNFS_TYPE_MASK and types are defined in include/linux/kernfs.h */
/**
* kernfs_root - find out the kernfs_root a kernfs_node belongs to

2
fs/kernfs/symlink.c
View File

@ -31,7 +31,7 @@ struct kernfs_node *kernfs_create_link(struct kernfs_node *parent,
int error;
kn = sysfs_new_dirent(kernfs_root(parent), name, S_IFLNK|S_IRWXUGO,
SYSFS_KOBJ_LINK);
KERNFS_LINK);
if (!kn)
return ERR_PTR(-ENOMEM);

2
fs/sysfs/dir.c
View File

@ -113,7 +113,7 @@ void sysfs_remove_dir(struct kobject *kobj)
spin_unlock(&sysfs_symlink_target_lock);
if (kn) {
WARN_ON_ONCE(sysfs_type(kn) != SYSFS_DIR);
WARN_ON_ONCE(kernfs_type(kn) != KERNFS_DIR);
kernfs_remove(kn);
}
}

2
fs/sysfs/file.c
View File

@ -29,7 +29,7 @@ static const struct sysfs_ops *sysfs_file_ops(struct kernfs_node *kn)
{
struct kobject *kobj = kn->parent->priv;
if (kn->flags & SYSFS_FLAG_LOCKDEP)
if (kn->flags & KERNFS_LOCKDEP)
lockdep_assert_held(kn);
return kobj->ktype ? kobj->ktype->sysfs_ops : NULL;
}

2
fs/sysfs/symlink.c
View File

@ -183,7 +183,7 @@ int sysfs_rename_link_ns(struct kobject *kobj, struct kobject *targ,
goto out;
result = -EINVAL;
if (sysfs_type(kn) != SYSFS_KOBJ_LINK)
if (kernfs_type(kn) != KERNFS_LINK)
goto out;
if (kn->symlink.target_kn->priv != targ)
goto out;

36
include/linux/kernfs.h
View File

@ -28,22 +28,22 @@ struct kernfs_open_node;
struct kernfs_iattrs;
enum kernfs_node_type {
SYSFS_DIR = 0x0001,
SYSFS_KOBJ_ATTR = 0x0002,
SYSFS_KOBJ_LINK = 0x0004,
KERNFS_DIR = 0x0001,
KERNFS_FILE = 0x0002,
KERNFS_LINK = 0x0004,
};
#define SYSFS_TYPE_MASK 0x000f
#define SYSFS_COPY_NAME (SYSFS_DIR | SYSFS_KOBJ_LINK)
#define SYSFS_ACTIVE_REF SYSFS_KOBJ_ATTR
#define SYSFS_FLAG_MASK ~SYSFS_TYPE_MASK
#define KERNFS_TYPE_MASK 0x000f
#define KERNFS_COPY_NAME (KERNFS_DIR | KERNFS_LINK)
#define KERNFS_ACTIVE_REF KERNFS_FILE
#define KERNFS_FLAG_MASK ~KERNFS_TYPE_MASK
enum kernfs_node_flag {
SYSFS_FLAG_REMOVED = 0x0010,
SYSFS_FLAG_NS = 0x0020,
SYSFS_FLAG_HAS_SEQ_SHOW = 0x0040,
SYSFS_FLAG_HAS_MMAP = 0x0080,
SYSFS_FLAG_LOCKDEP = 0x0100,
KERNFS_REMOVED = 0x0010,
KERNFS_NS = 0x0020,
KERNFS_HAS_SEQ_SHOW = 0x0040,
KERNFS_HAS_MMAP = 0x0080,
KERNFS_LOCKDEP = 0x0100,
};
/* type-specific structures for kernfs_node union members */
@ -170,9 +170,9 @@ struct kernfs_ops {
#ifdef CONFIG_SYSFS
static inline enum kernfs_node_type sysfs_type(struct kernfs_node *kn)
static inline enum kernfs_node_type kernfs_type(struct kernfs_node *kn)
{
return kn->flags & SYSFS_TYPE_MASK;
return kn->flags & KERNFS_TYPE_MASK;
}
/**
@ -185,9 +185,9 @@ static inline enum kernfs_node_type sysfs_type(struct kernfs_node *kn)
*/
static inline void kernfs_enable_ns(struct kernfs_node *kn)
{
WARN_ON_ONCE(sysfs_type(kn) != SYSFS_DIR);
WARN_ON_ONCE(kernfs_type(kn) != KERNFS_DIR);
WARN_ON_ONCE(!RB_EMPTY_ROOT(&kn->dir.children));
kn->flags |= SYSFS_FLAG_NS;
kn->flags |= KERNFS_NS;
}
/**
@ -198,7 +198,7 @@ static inline void kernfs_enable_ns(struct kernfs_node *kn)
*/
static inline bool kernfs_ns_enabled(struct kernfs_node *kn)
{
return kn->flags & SYSFS_FLAG_NS;
return kn->flags & KERNFS_NS;
}
struct kernfs_node *kernfs_find_and_get_ns(struct kernfs_node *parent,
@ -238,7 +238,7 @@ void kernfs_init(void);
#else /* CONFIG_SYSFS */
static inline enum kernfs_node_type sysfs_type(struct kernfs_node *kn)
static inline enum kernfs_node_type kernfs_type(struct kernfs_node *kn)
{ return 0; } /* whatever */
static inline void kernfs_enable_ns(struct kernfs_node *kn) { }