kernfs: drop s_ prefix from kernfs_node members
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.
s_ prefix for kernfs members is used inconsistently and a misnomer
now. It's not like kernfs_node is used widely across the kernel
making the ability to grep for the members particularly useful. Let's
just drop the prefix.
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>
diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
index 800ebf5..51fff9d 100644
--- a/fs/kernfs/dir.c
+++ b/fs/kernfs/dir.c
@@ -19,7 +19,7 @@
DEFINE_MUTEX(sysfs_mutex);
-#define rb_to_kn(X) rb_entry((X), struct kernfs_node, s_rb)
+#define rb_to_kn(X) rb_entry((X), struct kernfs_node, rb)
/**
* sysfs_name_hash
@@ -47,18 +47,17 @@
static int sysfs_name_compare(unsigned int hash, const char *name,
const void *ns, const struct kernfs_node *kn)
{
- if (hash != kn->s_hash)
- return hash - kn->s_hash;
- if (ns != kn->s_ns)
- return ns - kn->s_ns;
- return strcmp(name, kn->s_name);
+ if (hash != kn->hash)
+ return hash - kn->hash;
+ if (ns != kn->ns)
+ return ns - kn->ns;
+ return strcmp(name, kn->name);
}
static int sysfs_sd_compare(const struct kernfs_node *left,
const struct kernfs_node *right)
{
- return sysfs_name_compare(left->s_hash, left->s_name, left->s_ns,
- right);
+ return sysfs_name_compare(left->hash, left->name, left->ns, right);
}
/**
@@ -66,7 +65,7 @@
* @kn: kernfs_node of interest
*
* Link @kn into its sibling rbtree which starts from
- * @kn->s_parent->s_dir.children.
+ * @kn->parent->dir.children.
*
* Locking:
* mutex_lock(sysfs_mutex)
@@ -76,11 +75,11 @@
*/
static int sysfs_link_sibling(struct kernfs_node *kn)
{
- struct rb_node **node = &kn->s_parent->s_dir.children.rb_node;
+ struct rb_node **node = &kn->parent->dir.children.rb_node;
struct rb_node *parent = NULL;
if (sysfs_type(kn) == SYSFS_DIR)
- kn->s_parent->s_dir.subdirs++;
+ kn->parent->dir.subdirs++;
while (*node) {
struct kernfs_node *pos;
@@ -90,15 +89,15 @@
parent = *node;
result = sysfs_sd_compare(kn, pos);
if (result < 0)
- node = &pos->s_rb.rb_left;
+ node = &pos->rb.rb_left;
else if (result > 0)
- node = &pos->s_rb.rb_right;
+ node = &pos->rb.rb_right;
else
return -EEXIST;
}
/* add new node and rebalance the tree */
- rb_link_node(&kn->s_rb, parent, node);
- rb_insert_color(&kn->s_rb, &kn->s_parent->s_dir.children);
+ rb_link_node(&kn->rb, parent, node);
+ rb_insert_color(&kn->rb, &kn->parent->dir.children);
return 0;
}
@@ -107,7 +106,7 @@
* @kn: kernfs_node of interest
*
* Unlink @kn from its sibling rbtree which starts from
- * kn->s_parent->s_dir.children.
+ * kn->parent->dir.children.
*
* Locking:
* mutex_lock(sysfs_mutex)
@@ -115,9 +114,9 @@
static void sysfs_unlink_sibling(struct kernfs_node *kn)
{
if (sysfs_type(kn) == SYSFS_DIR)
- kn->s_parent->s_dir.subdirs--;
+ kn->parent->dir.subdirs--;
- rb_erase(&kn->s_rb, &kn->s_parent->s_dir.children);
+ rb_erase(&kn->rb, &kn->parent->dir.children);
}
/**
@@ -135,10 +134,10 @@
if (unlikely(!kn))
return NULL;
- if (!atomic_inc_unless_negative(&kn->s_active))
+ if (!atomic_inc_unless_negative(&kn->active))
return NULL;
- if (kn->s_flags & SYSFS_FLAG_LOCKDEP)
+ if (kn->flags & SYSFS_FLAG_LOCKDEP)
rwsem_acquire_read(&kn->dep_map, 0, 1, _RET_IP_);
return kn;
}
@@ -157,9 +156,9 @@
if (unlikely(!kn))
return;
- if (kn->s_flags & SYSFS_FLAG_LOCKDEP)
+ if (kn->flags & SYSFS_FLAG_LOCKDEP)
rwsem_release(&kn->dep_map, 1, _RET_IP_);
- v = atomic_dec_return(&kn->s_active);
+ v = atomic_dec_return(&kn->active);
if (likely(v != SD_DEACTIVATED_BIAS))
return;
@@ -181,7 +180,7 @@
DECLARE_COMPLETION_ONSTACK(wait);
int v;
- BUG_ON(!(kn->s_flags & SYSFS_FLAG_REMOVED));
+ BUG_ON(!(kn->flags & SYSFS_FLAG_REMOVED));
if (!(sysfs_type(kn) & SYSFS_ACTIVE_REF))
return;
@@ -192,7 +191,7 @@
/* atomic_add_return() is a mb(), put_active() will always see
* the updated kn->u.completion.
*/
- v = atomic_add_return(SD_DEACTIVATED_BIAS, &kn->s_active);
+ v = atomic_add_return(SD_DEACTIVATED_BIAS, &kn->active);
if (v != SD_DEACTIVATED_BIAS) {
lock_contended(&kn->dep_map, _RET_IP_);
@@ -210,8 +209,8 @@
void kernfs_get(struct kernfs_node *kn)
{
if (kn) {
- WARN_ON(!atomic_read(&kn->s_count));
- atomic_inc(&kn->s_count);
+ WARN_ON(!atomic_read(&kn->count));
+ atomic_inc(&kn->count);
}
}
EXPORT_SYMBOL_GPL(kernfs_get);
@@ -227,36 +226,36 @@
struct kernfs_node *parent;
struct kernfs_root *root;
- if (!kn || !atomic_dec_and_test(&kn->s_count))
+ if (!kn || !atomic_dec_and_test(&kn->count))
return;
root = kernfs_root(kn);
repeat:
/* Moving/renaming is always done while holding reference.
- * kn->s_parent won't change beneath us.
+ * kn->parent won't change beneath us.
*/
- parent = kn->s_parent;
+ parent = kn->parent;
- WARN(!(kn->s_flags & SYSFS_FLAG_REMOVED),
+ WARN(!(kn->flags & SYSFS_FLAG_REMOVED),
"sysfs: free using entry: %s/%s\n",
- parent ? parent->s_name : "", kn->s_name);
+ parent ? parent->name : "", kn->name);
if (sysfs_type(kn) == SYSFS_KOBJ_LINK)
- kernfs_put(kn->s_symlink.target_kn);
+ kernfs_put(kn->symlink.target_kn);
if (sysfs_type(kn) & SYSFS_COPY_NAME)
- kfree(kn->s_name);
- if (kn->s_iattr) {
- if (kn->s_iattr->ia_secdata)
- security_release_secctx(kn->s_iattr->ia_secdata,
- kn->s_iattr->ia_secdata_len);
- simple_xattrs_free(&kn->s_iattr->xattrs);
+ kfree(kn->name);
+ if (kn->iattr) {
+ if (kn->iattr->ia_secdata)
+ security_release_secctx(kn->iattr->ia_secdata,
+ kn->iattr->ia_secdata_len);
+ simple_xattrs_free(&kn->iattr->xattrs);
}
- kfree(kn->s_iattr);
- ida_simple_remove(&root->ino_ida, kn->s_ino);
+ kfree(kn->iattr);
+ ida_simple_remove(&root->ino_ida, kn->ino);
kmem_cache_free(sysfs_dir_cachep, kn);
kn = parent;
if (kn) {
- if (atomic_dec_and_test(&kn->s_count))
+ if (atomic_dec_and_test(&kn->count))
goto repeat;
} else {
/* just released the root kn, free @root too */
@@ -269,7 +268,7 @@
static int sysfs_dentry_delete(const struct dentry *dentry)
{
struct kernfs_node *kn = dentry->d_fsdata;
- return !(kn && !(kn->s_flags & SYSFS_FLAG_REMOVED));
+ return !(kn && !(kn->flags & SYSFS_FLAG_REMOVED));
}
static int sysfs_dentry_revalidate(struct dentry *dentry, unsigned int flags)
@@ -283,20 +282,20 @@
mutex_lock(&sysfs_mutex);
/* The sysfs dirent has been deleted */
- if (kn->s_flags & SYSFS_FLAG_REMOVED)
+ if (kn->flags & SYSFS_FLAG_REMOVED)
goto out_bad;
/* The sysfs dirent has been moved? */
- if (dentry->d_parent->d_fsdata != kn->s_parent)
+ if (dentry->d_parent->d_fsdata != kn->parent)
goto out_bad;
/* The sysfs dirent has been renamed */
- if (strcmp(dentry->d_name.name, kn->s_name) != 0)
+ if (strcmp(dentry->d_name.name, kn->name) != 0)
goto out_bad;
/* The sysfs dirent has been moved to a different namespace */
- if (kn->s_parent && kernfs_ns_enabled(kn->s_parent) &&
- sysfs_info(dentry->d_sb)->ns != kn->s_ns)
+ if (kn->parent && kernfs_ns_enabled(kn->parent) &&
+ sysfs_info(dentry->d_sb)->ns != kn->ns)
goto out_bad;
mutex_unlock(&sysfs_mutex);
@@ -356,14 +355,14 @@
ret = ida_simple_get(&root->ino_ida, 1, 0, GFP_KERNEL);
if (ret < 0)
goto err_out2;
- kn->s_ino = ret;
+ kn->ino = ret;
- atomic_set(&kn->s_count, 1);
- atomic_set(&kn->s_active, 0);
+ atomic_set(&kn->count, 1);
+ atomic_set(&kn->active, 0);
- kn->s_name = name;
- kn->s_mode = mode;
- kn->s_flags = type | SYSFS_FLAG_REMOVED;
+ kn->name = name;
+ kn->mode = mode;
+ kn->flags = type | SYSFS_FLAG_REMOVED;
return kn;
@@ -400,9 +399,9 @@
* @kn: kernfs_node to be added
* @parent: the parent kernfs_node to add @kn to
*
- * Get @parent and set @kn->s_parent to it and increment nlink of
- * the parent inode if @kn is a directory and link into the children
- * list of the parent.
+ * Get @parent and set @kn->parent to it and increment nlink of the
+ * parent inode if @kn is a directory and link into the children list
+ * of the parent.
*
* This function should be called between calls to
* sysfs_addrm_start() and sysfs_addrm_finish() and should be
@@ -422,18 +421,17 @@
struct sysfs_inode_attrs *ps_iattr;
int ret;
- if (has_ns != (bool)kn->s_ns) {
+ if (has_ns != (bool)kn->ns) {
WARN(1, KERN_WARNING "sysfs: ns %s in '%s' for '%s'\n",
- has_ns ? "required" : "invalid",
- parent->s_name, kn->s_name);
+ has_ns ? "required" : "invalid", parent->name, kn->name);
return -EINVAL;
}
if (sysfs_type(parent) != SYSFS_DIR)
return -EINVAL;
- kn->s_hash = sysfs_name_hash(kn->s_name, kn->s_ns);
- kn->s_parent = parent;
+ kn->hash = sysfs_name_hash(kn->name, kn->ns);
+ kn->parent = parent;
kernfs_get(parent);
ret = sysfs_link_sibling(kn);
@@ -441,14 +439,14 @@
return ret;
/* Update timestamps on the parent */
- ps_iattr = parent->s_iattr;
+ ps_iattr = parent->iattr;
if (ps_iattr) {
struct iattr *ps_iattrs = &ps_iattr->ia_iattr;
ps_iattrs->ia_ctime = ps_iattrs->ia_mtime = CURRENT_TIME;
}
/* Mark the entry added into directory tree */
- kn->s_flags &= ~SYSFS_FLAG_REMOVED;
+ kn->flags &= ~SYSFS_FLAG_REMOVED;
return 0;
}
@@ -477,21 +475,21 @@
* Removal can be called multiple times on the same node. Only the
* first invocation is effective and puts the base ref.
*/
- if (kn->s_flags & SYSFS_FLAG_REMOVED)
+ if (kn->flags & SYSFS_FLAG_REMOVED)
return;
- if (kn->s_parent) {
+ if (kn->parent) {
sysfs_unlink_sibling(kn);
/* Update timestamps on the parent */
- ps_iattr = kn->s_parent->s_iattr;
+ ps_iattr = kn->parent->iattr;
if (ps_iattr) {
ps_iattr->ia_iattr.ia_ctime = CURRENT_TIME;
ps_iattr->ia_iattr.ia_mtime = CURRENT_TIME;
}
}
- kn->s_flags |= SYSFS_FLAG_REMOVED;
+ kn->flags |= SYSFS_FLAG_REMOVED;
kn->u.removed_list = acxt->removed;
acxt->removed = kn;
}
@@ -538,7 +536,7 @@
const unsigned char *name,
const void *ns)
{
- struct rb_node *node = parent->s_dir.children.rb_node;
+ struct rb_node *node = parent->dir.children.rb_node;
bool has_ns = kernfs_ns_enabled(parent);
unsigned int hash;
@@ -546,8 +544,7 @@
if (has_ns != (bool)ns) {
WARN(1, KERN_WARNING "sysfs: ns %s in '%s' for '%s'\n",
- has_ns ? "required" : "invalid",
- parent->s_name, name);
+ has_ns ? "required" : "invalid", parent->name, name);
return NULL;
}
@@ -617,9 +614,9 @@
return ERR_PTR(-ENOMEM);
}
- kn->s_flags &= ~SYSFS_FLAG_REMOVED;
+ kn->flags &= ~SYSFS_FLAG_REMOVED;
kn->priv = priv;
- kn->s_dir.root = root;
+ kn->dir.root = root;
root->kn = kn;
@@ -661,8 +658,8 @@
if (!kn)
return ERR_PTR(-ENOMEM);
- kn->s_dir.root = parent->s_dir.root;
- kn->s_ns = ns;
+ kn->dir.root = parent->dir.root;
+ kn->ns = ns;
kn->priv = priv;
/* link in */
@@ -738,7 +735,7 @@
if (sysfs_type(pos) != SYSFS_DIR)
break;
- rbn = rb_first(&pos->s_dir.children);
+ rbn = rb_first(&pos->dir.children);
if (!rbn)
break;
@@ -773,12 +770,12 @@
return NULL;
/* if there's an unvisited sibling, visit its leftmost descendant */
- rbn = rb_next(&pos->s_rb);
+ rbn = rb_next(&pos->rb);
if (rbn)
return sysfs_leftmost_descendant(rb_to_kn(rbn));
/* no sibling left, visit parent */
- return pos->s_parent;
+ return pos->parent;
}
static void __kernfs_remove(struct sysfs_addrm_cxt *acxt,
@@ -789,7 +786,7 @@
if (!kn)
return;
- pr_debug("sysfs %s: removing\n", kn->s_name);
+ pr_debug("sysfs %s: removing\n", kn->name);
next = NULL;
do {
@@ -865,8 +862,8 @@
mutex_lock(&sysfs_mutex);
error = 0;
- if ((kn->s_parent == new_parent) && (kn->s_ns == new_ns) &&
- (strcmp(kn->s_name, new_name) == 0))
+ if ((kn->parent == new_parent) && (kn->ns == new_ns) &&
+ (strcmp(kn->name, new_name) == 0))
goto out; /* nothing to rename */
error = -EEXIST;
@@ -874,14 +871,14 @@
goto out;
/* rename kernfs_node */
- if (strcmp(kn->s_name, new_name) != 0) {
+ if (strcmp(kn->name, new_name) != 0) {
error = -ENOMEM;
new_name = kstrdup(new_name, GFP_KERNEL);
if (!new_name)
goto out;
- kfree(kn->s_name);
- kn->s_name = new_name;
+ kfree(kn->name);
+ kn->name = new_name;
}
/*
@@ -889,10 +886,10 @@
*/
sysfs_unlink_sibling(kn);
kernfs_get(new_parent);
- kernfs_put(kn->s_parent);
- kn->s_ns = new_ns;
- kn->s_hash = sysfs_name_hash(kn->s_name, kn->s_ns);
- kn->s_parent = new_parent;
+ kernfs_put(kn->parent);
+ kn->ns = new_ns;
+ kn->hash = sysfs_name_hash(kn->name, kn->ns);
+ kn->parent = new_parent;
sysfs_link_sibling(kn);
error = 0;
@@ -904,7 +901,7 @@
/* Relationship between s_mode and the DT_xxx types */
static inline unsigned char dt_type(struct kernfs_node *kn)
{
- return (kn->s_mode >> 12) & 15;
+ return (kn->mode >> 12) & 15;
}
static int sysfs_dir_release(struct inode *inode, struct file *filp)
@@ -917,29 +914,28 @@
struct kernfs_node *parent, loff_t hash, struct kernfs_node *pos)
{
if (pos) {
- int valid = !(pos->s_flags & SYSFS_FLAG_REMOVED) &&
- pos->s_parent == parent &&
- hash == pos->s_hash;
+ int valid = !(pos->flags & SYSFS_FLAG_REMOVED) &&
+ pos->parent == parent && hash == pos->hash;
kernfs_put(pos);
if (!valid)
pos = NULL;
}
if (!pos && (hash > 1) && (hash < INT_MAX)) {
- struct rb_node *node = parent->s_dir.children.rb_node;
+ struct rb_node *node = parent->dir.children.rb_node;
while (node) {
pos = rb_to_kn(node);
- if (hash < pos->s_hash)
+ if (hash < pos->hash)
node = node->rb_left;
- else if (hash > pos->s_hash)
+ else if (hash > pos->hash)
node = node->rb_right;
else
break;
}
}
/* Skip over entries in the wrong namespace */
- while (pos && pos->s_ns != ns) {
- struct rb_node *node = rb_next(&pos->s_rb);
+ while (pos && pos->ns != ns) {
+ struct rb_node *node = rb_next(&pos->rb);
if (!node)
pos = NULL;
else
@@ -954,12 +950,12 @@
pos = sysfs_dir_pos(ns, parent, ino, pos);
if (pos)
do {
- struct rb_node *node = rb_next(&pos->s_rb);
+ struct rb_node *node = rb_next(&pos->rb);
if (!node)
pos = NULL;
else
pos = rb_to_kn(node);
- } while (pos && pos->s_ns != ns);
+ } while (pos && pos->ns != ns);
return pos;
}
@@ -980,12 +976,12 @@
for (pos = sysfs_dir_pos(ns, parent, ctx->pos, pos);
pos;
pos = sysfs_dir_next_pos(ns, parent, ctx->pos, pos)) {
- const char *name = pos->s_name;
+ const char *name = pos->name;
unsigned int type = dt_type(pos);
int len = strlen(name);
- ino_t ino = pos->s_ino;
+ ino_t ino = pos->ino;
- ctx->pos = pos->s_hash;
+ ctx->pos = pos->hash;
file->private_data = pos;
kernfs_get(pos);
diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index 1bf07de..5277021 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -21,7 +21,7 @@
* There's one sysfs_open_file for each open file and one sysfs_open_dirent
* for each kernfs_node with one or more open files.
*
- * kernfs_node->s_attr.open points to sysfs_open_dirent. s_attr.open is
+ * kernfs_node->attr.open points to sysfs_open_dirent. attr.open is
* protected by sysfs_open_dirent_lock.
*
* filp->private_data points to seq_file whose ->private points to
@@ -49,9 +49,9 @@
*/
static const struct kernfs_ops *kernfs_ops(struct kernfs_node *kn)
{
- if (kn->s_flags & SYSFS_FLAG_LOCKDEP)
+ if (kn->flags & SYSFS_FLAG_LOCKDEP)
lockdep_assert_held(kn);
- return kn->s_attr.ops;
+ return kn->attr.ops;
}
static void *kernfs_seq_start(struct seq_file *sf, loff_t *ppos)
@@ -112,9 +112,9 @@
{
struct sysfs_open_file *of = sf->private;
- of->event = atomic_read(&of->kn->s_attr.open->event);
+ of->event = atomic_read(&of->kn->attr.open->event);
- return of->kn->s_attr.ops->seq_show(sf, v);
+ return of->kn->attr.ops->seq_show(sf, v);
}
static const struct seq_operations kernfs_seq_ops = {
@@ -189,7 +189,7 @@
{
struct sysfs_open_file *of = sysfs_of(file);
- if (of->kn->s_flags & SYSFS_FLAG_HAS_SEQ_SHOW)
+ if (of->kn->flags & SYSFS_FLAG_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 @@
* without grabbing @of->mutex by testing HAS_MMAP flag. See the
* comment in kernfs_file_open() for more details.
*/
- if (!(of->kn->s_flags & SYSFS_FLAG_HAS_MMAP))
+ if (!(of->kn->flags & SYSFS_FLAG_HAS_MMAP))
return -ENODEV;
mutex_lock(&of->mutex);
@@ -477,8 +477,8 @@
* @kn: target kernfs_node
* @of: sysfs_open_file for this instance of open
*
- * If @kn->s_attr.open exists, increment its reference count;
- * otherwise, create one. @of is chained to the files list.
+ * If @kn->attr.open exists, increment its reference count; otherwise,
+ * create one. @of is chained to the files list.
*
* LOCKING:
* Kernel thread context (may sleep).
@@ -495,12 +495,12 @@
mutex_lock(&sysfs_open_file_mutex);
spin_lock_irq(&sysfs_open_dirent_lock);
- if (!kn->s_attr.open && new_od) {
- kn->s_attr.open = new_od;
+ if (!kn->attr.open && new_od) {
+ kn->attr.open = new_od;
new_od = NULL;
}
- od = kn->s_attr.open;
+ od = kn->attr.open;
if (od) {
atomic_inc(&od->refcnt);
list_add_tail(&of->list, &od->files);
@@ -531,7 +531,7 @@
* @kn: target kernfs_nodet
* @of: associated sysfs_open_file
*
- * Put @kn->s_attr.open and unlink @of from the files list. If
+ * Put @kn->attr.open and unlink @of from the files list. If
* reference count reaches zero, disassociate and free it.
*
* LOCKING:
@@ -540,7 +540,7 @@
static void sysfs_put_open_dirent(struct kernfs_node *kn,
struct sysfs_open_file *of)
{
- struct sysfs_open_dirent *od = kn->s_attr.open;
+ struct sysfs_open_dirent *od = kn->attr.open;
unsigned long flags;
mutex_lock(&sysfs_open_file_mutex);
@@ -550,7 +550,7 @@
list_del(&of->list);
if (atomic_dec_and_test(&od->refcnt))
- kn->s_attr.open = NULL;
+ kn->attr.open = NULL;
else
od = NULL;
@@ -668,11 +668,11 @@
struct sysfs_open_dirent *od;
struct sysfs_open_file *of;
- if (!(kn->s_flags & SYSFS_FLAG_HAS_MMAP))
+ if (!(kn->flags & SYSFS_FLAG_HAS_MMAP))
return;
spin_lock_irq(&sysfs_open_dirent_lock);
- od = kn->s_attr.open;
+ od = kn->attr.open;
if (od)
atomic_inc(&od->refcnt);
spin_unlock_irq(&sysfs_open_dirent_lock);
@@ -706,7 +706,7 @@
{
struct sysfs_open_file *of = sysfs_of(filp);
struct kernfs_node *kn = filp->f_path.dentry->d_fsdata;
- struct sysfs_open_dirent *od = kn->s_attr.open;
+ struct sysfs_open_dirent *od = kn->attr.open;
/* need parent for the kobj, grab both */
if (!sysfs_get_active(kn))
@@ -739,7 +739,7 @@
spin_lock_irqsave(&sysfs_open_dirent_lock, flags);
if (!WARN_ON(sysfs_type(kn) != SYSFS_KOBJ_ATTR)) {
- od = kn->s_attr.open;
+ od = kn->attr.open;
if (od) {
atomic_inc(&od->event);
wake_up_interruptible(&od->poll);
@@ -789,27 +789,27 @@
if (!kn)
return ERR_PTR(-ENOMEM);
- kn->s_attr.ops = ops;
- kn->s_attr.size = size;
- kn->s_ns = ns;
+ kn->attr.ops = ops;
+ kn->attr.size = size;
+ kn->ns = ns;
kn->priv = priv;
#ifdef CONFIG_DEBUG_LOCK_ALLOC
if (key) {
lockdep_init_map(&kn->dep_map, "s_active", key, 0);
- kn->s_flags |= SYSFS_FLAG_LOCKDEP;
+ kn->flags |= SYSFS_FLAG_LOCKDEP;
}
#endif
/*
- * kn->s_attr.ops is accesible only while holding active ref. We
+ * kn->attr.ops is accesible only while holding active ref. We
* need to know whether some ops are implemented outside active
* ref. Cache their existence in flags.
*/
if (ops->seq_show)
- kn->s_flags |= SYSFS_FLAG_HAS_SEQ_SHOW;
+ kn->flags |= SYSFS_FLAG_HAS_SEQ_SHOW;
if (ops->mmap)
- kn->s_flags |= SYSFS_FLAG_HAS_MMAP;
+ kn->flags |= SYSFS_FLAG_HAS_MMAP;
sysfs_addrm_start(&acxt);
rc = sysfs_add_one(&acxt, kn, parent);
diff --git a/fs/kernfs/inode.c b/fs/kernfs/inode.c
index 9e74eed..f6c0aae 100644
--- a/fs/kernfs/inode.c
+++ b/fs/kernfs/inode.c
@@ -50,23 +50,23 @@
{
struct iattr *iattrs;
- if (kn->s_iattr)
- return kn->s_iattr;
+ if (kn->iattr)
+ return kn->iattr;
- kn->s_iattr = kzalloc(sizeof(struct sysfs_inode_attrs), GFP_KERNEL);
- if (!kn->s_iattr)
+ kn->iattr = kzalloc(sizeof(struct sysfs_inode_attrs), GFP_KERNEL);
+ if (!kn->iattr)
return NULL;
- iattrs = &kn->s_iattr->ia_iattr;
+ iattrs = &kn->iattr->ia_iattr;
/* assign default attributes */
- iattrs->ia_mode = kn->s_mode;
+ iattrs->ia_mode = kn->mode;
iattrs->ia_uid = GLOBAL_ROOT_UID;
iattrs->ia_gid = GLOBAL_ROOT_GID;
iattrs->ia_atime = iattrs->ia_mtime = iattrs->ia_ctime = CURRENT_TIME;
- simple_xattrs_init(&kn->s_iattr->xattrs);
+ simple_xattrs_init(&kn->iattr->xattrs);
- return kn->s_iattr;
+ return kn->iattr;
}
static int __kernfs_setattr(struct kernfs_node *kn, const struct iattr *iattr)
@@ -93,7 +93,7 @@
iattrs->ia_ctime = iattr->ia_ctime;
if (ia_valid & ATTR_MODE) {
umode_t mode = iattr->ia_mode;
- iattrs->ia_mode = kn->s_mode = mode;
+ iattrs->ia_mode = kn->mode = mode;
}
return 0;
}
@@ -256,9 +256,9 @@
static void sysfs_refresh_inode(struct kernfs_node *kn, struct inode *inode)
{
- struct sysfs_inode_attrs *attrs = kn->s_iattr;
+ struct sysfs_inode_attrs *attrs = kn->iattr;
- inode->i_mode = kn->s_mode;
+ inode->i_mode = kn->mode;
if (attrs) {
/*
* kernfs_node has non-default attributes get them from
@@ -270,7 +270,7 @@
}
if (sysfs_type(kn) == SYSFS_DIR)
- set_nlink(inode, kn->s_dir.subdirs + 2);
+ set_nlink(inode, kn->dir.subdirs + 2);
}
int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
@@ -295,7 +295,7 @@
inode->i_mapping->backing_dev_info = &sysfs_backing_dev_info;
inode->i_op = &sysfs_inode_operations;
- set_default_inode_attr(inode, kn->s_mode);
+ set_default_inode_attr(inode, kn->mode);
sysfs_refresh_inode(kn, inode);
/* initialize inode according to type */
@@ -305,7 +305,7 @@
inode->i_fop = &sysfs_dir_operations;
break;
case SYSFS_KOBJ_ATTR:
- inode->i_size = kn->s_attr.size;
+ inode->i_size = kn->attr.size;
inode->i_fop = &kernfs_file_operations;
break;
case SYSFS_KOBJ_LINK:
@@ -337,7 +337,7 @@
{
struct inode *inode;
- inode = iget_locked(sb, kn->s_ino);
+ inode = iget_locked(sb, kn->ino);
if (inode && (inode->i_state & I_NEW))
sysfs_init_inode(kn, inode);
diff --git a/fs/kernfs/kernfs-internal.h b/fs/kernfs/kernfs-internal.h
index b7ea76c..2dbb1cb 100644
--- a/fs/kernfs/kernfs-internal.h
+++ b/fs/kernfs/kernfs-internal.h
@@ -39,9 +39,9 @@
static inline struct kernfs_root *kernfs_root(struct kernfs_node *kn)
{
/* if parent exists, it's always a dir; otherwise, @sd is a dir */
- if (kn->s_parent)
- kn = kn->s_parent;
- return kn->s_dir.root;
+ if (kn->parent)
+ kn = kn->parent;
+ return kn->dir.root;
}
/*
diff --git a/fs/kernfs/symlink.c b/fs/kernfs/symlink.c
index 29dcf5e..5ac1a57 100644
--- a/fs/kernfs/symlink.c
+++ b/fs/kernfs/symlink.c
@@ -36,8 +36,8 @@
return ERR_PTR(-ENOMEM);
if (kernfs_ns_enabled(parent))
- kn->s_ns = target->s_ns;
- kn->s_symlink.target_kn = target;
+ kn->ns = target->ns;
+ kn->symlink.target_kn = target;
kernfs_get(target); /* ref owned by symlink */
sysfs_addrm_start(&acxt);
@@ -60,24 +60,24 @@
/* go up to the root, stop at the base */
base = parent;
- while (base->s_parent) {
- kn = target->s_parent;
- while (kn->s_parent && base != kn)
- kn = kn->s_parent;
+ while (base->parent) {
+ kn = target->parent;
+ while (kn->parent && base != kn)
+ kn = kn->parent;
if (base == kn)
break;
strcpy(s, "../");
s += 3;
- base = base->s_parent;
+ base = base->parent;
}
/* determine end of target string for reverse fillup */
kn = target;
- while (kn->s_parent && kn != base) {
- len += strlen(kn->s_name) + 1;
- kn = kn->s_parent;
+ while (kn->parent && kn != base) {
+ len += strlen(kn->name) + 1;
+ kn = kn->parent;
}
/* check limits */
@@ -89,15 +89,15 @@
/* reverse fillup of target string from target to base */
kn = target;
- while (kn->s_parent && kn != base) {
- int slen = strlen(kn->s_name);
+ while (kn->parent && kn != base) {
+ int slen = strlen(kn->name);
len -= slen;
- strncpy(s + len, kn->s_name, slen);
+ strncpy(s + len, kn->name, slen);
if (len)
s[--len] = '/';
- kn = kn->s_parent;
+ kn = kn->parent;
}
return 0;
@@ -106,8 +106,8 @@
static int sysfs_getlink(struct dentry *dentry, char *path)
{
struct kernfs_node *kn = dentry->d_fsdata;
- struct kernfs_node *parent = kn->s_parent;
- struct kernfs_node *target = kn->s_symlink.target_kn;
+ struct kernfs_node *parent = kn->parent;
+ struct kernfs_node *target = kn->symlink.target_kn;
int error;
mutex_lock(&sysfs_mutex);
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index f1efe3d..4a80001 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -29,11 +29,11 @@
*/
static char *sysfs_pathname(struct kernfs_node *kn, char *path)
{
- if (kn->s_parent) {
- sysfs_pathname(kn->s_parent, path);
+ if (kn->parent) {
+ sysfs_pathname(kn->parent, path);
strlcat(path, "/", PATH_MAX);
}
- strlcat(path, kn->s_name, PATH_MAX);
+ strlcat(path, kn->name, PATH_MAX);
return path;
}
@@ -121,7 +121,7 @@
int sysfs_rename_dir_ns(struct kobject *kobj, const char *new_name,
const void *new_ns)
{
- struct kernfs_node *parent = kobj->sd->s_parent;
+ struct kernfs_node *parent = kobj->sd->parent;
return kernfs_rename_ns(kobj->sd, parent, new_name, new_ns);
}
@@ -132,9 +132,9 @@
struct kernfs_node *kn = kobj->sd;
struct kernfs_node *new_parent;
- BUG_ON(!kn->s_parent);
+ BUG_ON(!kn->parent);
new_parent = new_parent_kobj && new_parent_kobj->sd ?
new_parent_kobj->sd : sysfs_root_kn;
- return kernfs_rename_ns(kn, new_parent, kn->s_name, new_ns);
+ return kernfs_rename_ns(kn, new_parent, kn->name, new_ns);
}
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index be1cc39..887703a 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -27,9 +27,9 @@
*/
static const struct sysfs_ops *sysfs_file_ops(struct kernfs_node *kn)
{
- struct kobject *kobj = kn->s_parent->priv;
+ struct kobject *kobj = kn->parent->priv;
- if (kn->s_flags & SYSFS_FLAG_LOCKDEP)
+ if (kn->flags & SYSFS_FLAG_LOCKDEP)
lockdep_assert_held(kn);
return kobj->ktype ? kobj->ktype->sysfs_ops : NULL;
}
@@ -42,7 +42,7 @@
static int sysfs_kf_seq_show(struct seq_file *sf, void *v)
{
struct sysfs_open_file *of = sf->private;
- struct kobject *kobj = of->kn->s_parent->priv;
+ struct kobject *kobj = of->kn->parent->priv;
const struct sysfs_ops *ops = sysfs_file_ops(of->kn);
ssize_t count;
char *buf;
@@ -82,7 +82,7 @@
size_t count, loff_t pos)
{
struct bin_attribute *battr = of->kn->priv;
- struct kobject *kobj = of->kn->s_parent->priv;
+ struct kobject *kobj = of->kn->parent->priv;
loff_t size = file_inode(of->file)->i_size;
if (!count)
@@ -106,7 +106,7 @@
size_t count, loff_t pos)
{
const struct sysfs_ops *ops = sysfs_file_ops(of->kn);
- struct kobject *kobj = of->kn->s_parent->priv;
+ struct kobject *kobj = of->kn->parent->priv;
if (!count)
return 0;
@@ -119,7 +119,7 @@
size_t count, loff_t pos)
{
struct bin_attribute *battr = of->kn->priv;
- struct kobject *kobj = of->kn->s_parent->priv;
+ struct kobject *kobj = of->kn->parent->priv;
loff_t size = file_inode(of->file)->i_size;
if (size) {
@@ -140,7 +140,7 @@
struct vm_area_struct *vma)
{
struct bin_attribute *battr = of->kn->priv;
- struct kobject *kobj = of->kn->s_parent->priv;
+ struct kobject *kobj = of->kn->parent->priv;
return battr->mmap(of->file, kobj, battr, vma);
}
@@ -345,7 +345,7 @@
if (!kn)
return -ENOENT;
- newattrs.ia_mode = (mode & S_IALLUGO) | (kn->s_mode & ~S_IALLUGO);
+ newattrs.ia_mode = (mode & S_IALLUGO) | (kn->mode & ~S_IALLUGO);
newattrs.ia_valid = ATTR_MODE;
rc = kernfs_setattr(kn, &newattrs);
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 4ed3d49..0d48ea9 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -129,7 +129,7 @@
*/
spin_lock(&sysfs_symlink_target_lock);
if (targ->sd && kernfs_ns_enabled(kobj->sd))
- ns = targ->sd->s_ns;
+ ns = targ->sd->ns;
spin_unlock(&sysfs_symlink_target_lock);
kernfs_remove_by_name_ns(kobj->sd, name, ns);
}
@@ -175,7 +175,7 @@
parent = kobj->sd;
if (targ->sd)
- old_ns = targ->sd->s_ns;
+ old_ns = targ->sd->ns;
result = -ENOENT;
kn = kernfs_find_and_get_ns(parent, old, old_ns);
@@ -185,7 +185,7 @@
result = -EINVAL;
if (sysfs_type(kn) != SYSFS_KOBJ_LINK)
goto out;
- if (kn->s_symlink.target_kn->priv != targ)
+ if (kn->symlink.target_kn->priv != targ)
goto out;
result = kernfs_rename_ns(kn, parent, new, new_ns);
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index 195d1c6..092469f 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -49,7 +49,7 @@
/* type-specific structures for kernfs_node union members */
struct kernfs_elem_dir {
unsigned long subdirs;
- /* children rbtree starts here and goes through kn->s_rb */
+ /* children rbtree starts here and goes through kn->rb */
struct rb_root children;
/*
@@ -79,36 +79,36 @@
* active reference.
*/
struct kernfs_node {
- atomic_t s_count;
- atomic_t s_active;
+ atomic_t count;
+ atomic_t active;
#ifdef CONFIG_DEBUG_LOCK_ALLOC
struct lockdep_map dep_map;
#endif
/* the following two fields are published */
- struct kernfs_node *s_parent;
- const char *s_name;
+ struct kernfs_node *parent;
+ const char *name;
- struct rb_node s_rb;
+ struct rb_node rb;
union {
struct completion *completion;
struct kernfs_node *removed_list;
} u;
- const void *s_ns; /* namespace tag */
- unsigned int s_hash; /* ns + name hash */
+ const void *ns; /* namespace tag */
+ unsigned int hash; /* ns + name hash */
union {
- struct kernfs_elem_dir s_dir;
- struct kernfs_elem_symlink s_symlink;
- struct kernfs_elem_attr s_attr;
+ struct kernfs_elem_dir dir;
+ struct kernfs_elem_symlink symlink;
+ struct kernfs_elem_attr attr;
};
void *priv;
- unsigned short s_flags;
- umode_t s_mode;
- unsigned int s_ino;
- struct sysfs_inode_attrs *s_iattr;
+ unsigned short flags;
+ umode_t mode;
+ unsigned int ino;
+ struct sysfs_inode_attrs *iattr;
};
struct kernfs_root {
@@ -172,7 +172,7 @@
static inline enum kernfs_node_type sysfs_type(struct kernfs_node *kn)
{
- return kn->s_flags & SYSFS_TYPE_MASK;
+ return kn->flags & SYSFS_TYPE_MASK;
}
/**
@@ -186,8 +186,8 @@
static inline void kernfs_enable_ns(struct kernfs_node *kn)
{
WARN_ON_ONCE(sysfs_type(kn) != SYSFS_DIR);
- WARN_ON_ONCE(!RB_EMPTY_ROOT(&kn->s_dir.children));
- kn->s_flags |= SYSFS_FLAG_NS;
+ WARN_ON_ONCE(!RB_EMPTY_ROOT(&kn->dir.children));
+ kn->flags |= SYSFS_FLAG_NS;
}
/**
@@ -198,7 +198,7 @@
*/
static inline bool kernfs_ns_enabled(struct kernfs_node *kn)
{
- return kn->s_flags & SYSFS_FLAG_NS;
+ return kn->flags & SYSFS_FLAG_NS;
}
struct kernfs_node *kernfs_find_and_get_ns(struct kernfs_node *parent,