diff options
Diffstat (limited to 'fs/sysfs/file.c')
-rw-r--r-- | fs/sysfs/file.c | 122 |
1 files changed, 61 insertions, 61 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index a67d1c682fed..be1cc39035bd 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -22,15 +22,15 @@ #include "../kernfs/kernfs-internal.h" /* - * Determine ktype->sysfs_ops for the given sysfs_dirent. This function + * Determine ktype->sysfs_ops for the given kernfs_node. This function * must be called while holding an active reference. */ -static const struct sysfs_ops *sysfs_file_ops(struct sysfs_dirent *sd) +static const struct sysfs_ops *sysfs_file_ops(struct kernfs_node *kn) { - struct kobject *kobj = sd->s_parent->priv; + struct kobject *kobj = kn->s_parent->priv; - if (sd->s_flags & SYSFS_FLAG_LOCKDEP) - lockdep_assert_held(sd); + if (kn->s_flags & SYSFS_FLAG_LOCKDEP) + lockdep_assert_held(kn); return kobj->ktype ? kobj->ktype->sysfs_ops : NULL; } @@ -42,8 +42,8 @@ static const struct sysfs_ops *sysfs_file_ops(struct sysfs_dirent *sd) static int sysfs_kf_seq_show(struct seq_file *sf, void *v) { struct sysfs_open_file *of = sf->private; - struct kobject *kobj = of->sd->s_parent->priv; - const struct sysfs_ops *ops = sysfs_file_ops(of->sd); + struct kobject *kobj = of->kn->s_parent->priv; + const struct sysfs_ops *ops = sysfs_file_ops(of->kn); ssize_t count; char *buf; @@ -59,7 +59,7 @@ static int sysfs_kf_seq_show(struct seq_file *sf, void *v) * if @ops->show() isn't implemented. */ if (ops->show) { - count = ops->show(kobj, of->sd->priv, buf); + count = ops->show(kobj, of->kn->priv, buf); if (count < 0) return count; } @@ -81,8 +81,8 @@ static int sysfs_kf_seq_show(struct seq_file *sf, void *v) static ssize_t sysfs_kf_bin_read(struct sysfs_open_file *of, char *buf, size_t count, loff_t pos) { - struct bin_attribute *battr = of->sd->priv; - struct kobject *kobj = of->sd->s_parent->priv; + struct bin_attribute *battr = of->kn->priv; + struct kobject *kobj = of->kn->s_parent->priv; loff_t size = file_inode(of->file)->i_size; if (!count) @@ -105,21 +105,21 @@ static ssize_t sysfs_kf_bin_read(struct sysfs_open_file *of, char *buf, static ssize_t sysfs_kf_write(struct sysfs_open_file *of, char *buf, size_t count, loff_t pos) { - const struct sysfs_ops *ops = sysfs_file_ops(of->sd); - struct kobject *kobj = of->sd->s_parent->priv; + const struct sysfs_ops *ops = sysfs_file_ops(of->kn); + struct kobject *kobj = of->kn->s_parent->priv; if (!count) return 0; - return ops->store(kobj, of->sd->priv, buf, count); + return ops->store(kobj, of->kn->priv, buf, count); } /* kernfs write callback for bin sysfs files */ static ssize_t sysfs_kf_bin_write(struct sysfs_open_file *of, char *buf, size_t count, loff_t pos) { - struct bin_attribute *battr = of->sd->priv; - struct kobject *kobj = of->sd->s_parent->priv; + struct bin_attribute *battr = of->kn->priv; + struct kobject *kobj = of->kn->s_parent->priv; loff_t size = file_inode(of->file)->i_size; if (size) { @@ -139,30 +139,30 @@ static ssize_t sysfs_kf_bin_write(struct sysfs_open_file *of, char *buf, static int sysfs_kf_bin_mmap(struct sysfs_open_file *of, struct vm_area_struct *vma) { - struct bin_attribute *battr = of->sd->priv; - struct kobject *kobj = of->sd->s_parent->priv; + struct bin_attribute *battr = of->kn->priv; + struct kobject *kobj = of->kn->s_parent->priv; return battr->mmap(of->file, kobj, battr, vma); } -void sysfs_notify(struct kobject *k, const char *dir, const char *attr) +void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr) { - struct sysfs_dirent *sd = k->sd, *tmp; + struct kernfs_node *kn = kobj->sd, *tmp; - if (sd && dir) - sd = kernfs_find_and_get(sd, dir); + if (kn && dir) + kn = kernfs_find_and_get(kn, dir); else - kernfs_get(sd); + kernfs_get(kn); - if (sd && attr) { - tmp = kernfs_find_and_get(sd, attr); - kernfs_put(sd); - sd = tmp; + if (kn && attr) { + tmp = kernfs_find_and_get(kn, attr); + kernfs_put(kn); + kn = tmp; } - if (sd) { - kernfs_notify(sd); - kernfs_put(sd); + if (kn) { + kernfs_notify(kn); + kernfs_put(kn); } } EXPORT_SYMBOL_GPL(sysfs_notify); @@ -202,17 +202,17 @@ static const struct kernfs_ops sysfs_bin_kfops_mmap = { .mmap = sysfs_kf_bin_mmap, }; -int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd, +int sysfs_add_file_mode_ns(struct kernfs_node *parent, const struct attribute *attr, bool is_bin, umode_t mode, const void *ns) { struct lock_class_key *key = NULL; const struct kernfs_ops *ops; - struct sysfs_dirent *sd; + struct kernfs_node *kn; loff_t size; if (!is_bin) { - struct kobject *kobj = dir_sd->priv; + struct kobject *kobj = parent->priv; const struct sysfs_ops *sysfs_ops = kobj->ktype->sysfs_ops; /* every kobject with an attribute needs a ktype assigned */ @@ -252,20 +252,20 @@ int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd, if (!attr->ignore_lockdep) key = attr->key ?: (struct lock_class_key *)&attr->skey; #endif - sd = kernfs_create_file_ns_key(dir_sd, attr->name, mode, size, + kn = kernfs_create_file_ns_key(parent, attr->name, mode, size, ops, (void *)attr, ns, key); - if (IS_ERR(sd)) { - if (PTR_ERR(sd) == -EEXIST) - sysfs_warn_dup(dir_sd, attr->name); - return PTR_ERR(sd); + if (IS_ERR(kn)) { + if (PTR_ERR(kn) == -EEXIST) + sysfs_warn_dup(parent, attr->name); + return PTR_ERR(kn); } return 0; } -int sysfs_add_file(struct sysfs_dirent *dir_sd, const struct attribute *attr, +int sysfs_add_file(struct kernfs_node *parent, const struct attribute *attr, bool is_bin) { - return sysfs_add_file_mode_ns(dir_sd, attr, is_bin, attr->mode, NULL); + return sysfs_add_file_mode_ns(parent, attr, is_bin, attr->mode, NULL); } /** @@ -307,21 +307,21 @@ EXPORT_SYMBOL_GPL(sysfs_create_files); int sysfs_add_file_to_group(struct kobject *kobj, const struct attribute *attr, const char *group) { - struct sysfs_dirent *dir_sd; + struct kernfs_node *parent; int error; if (group) { - dir_sd = kernfs_find_and_get(kobj->sd, group); + parent = kernfs_find_and_get(kobj->sd, group); } else { - dir_sd = kobj->sd; - kernfs_get(dir_sd); + parent = kobj->sd; + kernfs_get(parent); } - if (!dir_sd) + if (!parent) return -ENOENT; - error = sysfs_add_file(dir_sd, attr, false); - kernfs_put(dir_sd); + error = sysfs_add_file(parent, attr, false); + kernfs_put(parent); return error; } @@ -337,20 +337,20 @@ EXPORT_SYMBOL_GPL(sysfs_add_file_to_group); int sysfs_chmod_file(struct kobject *kobj, const struct attribute *attr, umode_t mode) { - struct sysfs_dirent *sd; + struct kernfs_node *kn; struct iattr newattrs; int rc; - sd = kernfs_find_and_get(kobj->sd, attr->name); - if (!sd) + kn = kernfs_find_and_get(kobj->sd, attr->name); + if (!kn) return -ENOENT; - newattrs.ia_mode = (mode & S_IALLUGO) | (sd->s_mode & ~S_IALLUGO); + newattrs.ia_mode = (mode & S_IALLUGO) | (kn->s_mode & ~S_IALLUGO); newattrs.ia_valid = ATTR_MODE; - rc = kernfs_setattr(sd, &newattrs); + rc = kernfs_setattr(kn, &newattrs); - kernfs_put(sd); + kernfs_put(kn); return rc; } EXPORT_SYMBOL_GPL(sysfs_chmod_file); @@ -366,9 +366,9 @@ EXPORT_SYMBOL_GPL(sysfs_chmod_file); void sysfs_remove_file_ns(struct kobject *kobj, const struct attribute *attr, const void *ns) { - struct sysfs_dirent *dir_sd = kobj->sd; + struct kernfs_node *parent = kobj->sd; - kernfs_remove_by_name_ns(dir_sd, attr->name, ns); + kernfs_remove_by_name_ns(parent, attr->name, ns); } EXPORT_SYMBOL_GPL(sysfs_remove_file_ns); @@ -389,18 +389,18 @@ EXPORT_SYMBOL_GPL(sysfs_remove_files); void sysfs_remove_file_from_group(struct kobject *kobj, const struct attribute *attr, const char *group) { - struct sysfs_dirent *dir_sd; + struct kernfs_node *parent; if (group) { - dir_sd = kernfs_find_and_get(kobj->sd, group); + parent = kernfs_find_and_get(kobj->sd, group); } else { - dir_sd = kobj->sd; - kernfs_get(dir_sd); + parent = kobj->sd; + kernfs_get(parent); } - if (dir_sd) { - kernfs_remove_by_name(dir_sd, attr->name); - kernfs_put(dir_sd); + if (parent) { + kernfs_remove_by_name(parent, attr->name); + kernfs_put(parent); } } EXPORT_SYMBOL_GPL(sysfs_remove_file_from_group); |