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Subject[PATCH 10/15] sysfs: make s_elem an anonymous union
Date
From
Make s_elem an anonymous union.  Prefixing with s_elem makes things
needlessly longer without any advantage.

Signed-off-by: Tejun Heo <htejun@gmail.com>
---
fs/sysfs/bin.c | 14 +++++++-------
fs/sysfs/dir.c | 4 ++--
fs/sysfs/file.c | 14 +++++++-------
fs/sysfs/inode.c | 2 +-
fs/sysfs/symlink.c | 4 ++--
fs/sysfs/sysfs.h | 10 +++++-----
6 files changed, 24 insertions(+), 24 deletions(-)
diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
index 9c8f882..247ea19 100644
--- a/fs/sysfs/bin.c
+++ b/fs/sysfs/bin.c
@@ -30,8 +30,8 @@ static int
fill_read(struct dentry *dentry, char *buffer, loff_t off, size_t count)
{
struct sysfs_dirent *attr_sd = dentry->d_fsdata;
- struct bin_attribute *attr = attr_sd->s_elem.bin_attr.bin_attr;
- struct kobject *kobj = attr_sd->s_parent->s_elem.dir.kobj;
+ struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr;
+ struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
int rc;

/* need attr_sd for attr, its parent for kobj */
@@ -87,8 +87,8 @@ static int
flush_write(struct dentry *dentry, char *buffer, loff_t offset, size_t count)
{
struct sysfs_dirent *attr_sd = dentry->d_fsdata;
- struct bin_attribute *attr = attr_sd->s_elem.bin_attr.bin_attr;
- struct kobject *kobj = attr_sd->s_parent->s_elem.dir.kobj;
+ struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr;
+ struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
int rc;

/* need attr_sd for attr, its parent for kobj */
@@ -140,8 +140,8 @@ static int mmap(struct file *file, struct vm_area_struct *vma)
{
struct bin_buffer *bb = file->private_data;
struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
- struct bin_attribute *attr = attr_sd->s_elem.bin_attr.bin_attr;
- struct kobject *kobj = attr_sd->s_parent->s_elem.dir.kobj;
+ struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr;
+ struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
int rc;

mutex_lock(&bb->mutex);
@@ -167,7 +167,7 @@ static int mmap(struct file *file, struct vm_area_struct *vma)
static int open(struct inode * inode, struct file * file)
{
struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
- struct bin_attribute *attr = attr_sd->s_elem.bin_attr.bin_attr;
+ struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr;
struct bin_buffer *bb = NULL;
int error;

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index e85206c..942d8e3 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -273,7 +273,7 @@ void release_sysfs_dirent(struct sysfs_dirent * sd)
parent_sd = sd->s_parent;

if (sysfs_type(sd) == SYSFS_KOBJ_LINK)
- sysfs_put(sd->s_elem.symlink.target_sd);
+ sysfs_put(sd->s_symlink.target_sd);
if (sysfs_type(sd) & SYSFS_COPY_NAME)
kfree(sd->s_name);
kfree(sd->s_iattr);
@@ -626,7 +626,7 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
sd = sysfs_new_dirent(name, mode, SYSFS_DIR);
if (!sd)
return -ENOMEM;
- sd->s_elem.dir.kobj = kobj;
+ sd->s_dir.kobj = kobj;

/* link in */
sysfs_addrm_start(&acxt, parent_sd);
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 8f1ebd8..3c91a57 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -73,7 +73,7 @@ struct sysfs_buffer {
static int fill_read_buffer(struct dentry * dentry, struct sysfs_buffer * buffer)
{
struct sysfs_dirent *attr_sd = dentry->d_fsdata;
- struct kobject *kobj = attr_sd->s_parent->s_elem.dir.kobj;
+ struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
struct sysfs_ops * ops = buffer->ops;
int ret = 0;
ssize_t count;
@@ -88,7 +88,7 @@ static int fill_read_buffer(struct dentry * dentry, struct sysfs_buffer * buffer
return -ENODEV;

buffer->event = atomic_read(&attr_sd->s_event);
- count = ops->show(kobj, attr_sd->s_elem.attr.attr, buffer->page);
+ count = ops->show(kobj, attr_sd->s_attr.attr, buffer->page);

sysfs_put_active_two(attr_sd);

@@ -188,7 +188,7 @@ static int
flush_write_buffer(struct dentry * dentry, struct sysfs_buffer * buffer, size_t count)
{
struct sysfs_dirent *attr_sd = dentry->d_fsdata;
- struct kobject *kobj = attr_sd->s_parent->s_elem.dir.kobj;
+ struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
struct sysfs_ops * ops = buffer->ops;
int rc;

@@ -196,7 +196,7 @@ flush_write_buffer(struct dentry * dentry, struct sysfs_buffer * buffer, size_t
if (!sysfs_get_active_two(attr_sd))
return -ENODEV;

- rc = ops->store(kobj, attr_sd->s_elem.attr.attr, buffer->page, count);
+ rc = ops->store(kobj, attr_sd->s_attr.attr, buffer->page, count);

sysfs_put_active_two(attr_sd);

@@ -240,7 +240,7 @@ sysfs_write_file(struct file *file, const char __user *buf, size_t count, loff_t
static int sysfs_open_file(struct inode *inode, struct file *file)
{
struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
- struct kobject *kobj = attr_sd->s_parent->s_elem.dir.kobj;
+ struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
struct sysfs_buffer * buffer;
struct sysfs_ops * ops = NULL;
int error;
@@ -336,7 +336,7 @@ static unsigned int sysfs_poll(struct file *filp, poll_table *wait)
{
struct sysfs_buffer * buffer = filp->private_data;
struct sysfs_dirent *attr_sd = filp->f_path.dentry->d_fsdata;
- struct kobject *kobj = attr_sd->s_parent->s_elem.dir.kobj;
+ struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;

/* need parent for the kobj, grab both */
if (!sysfs_get_active_two(attr_sd))
@@ -396,7 +396,7 @@ int sysfs_add_file(struct sysfs_dirent *dir_sd, const struct attribute *attr,
sd = sysfs_new_dirent(attr->name, mode, type);
if (!sd)
return -ENOMEM;
- sd->s_elem.attr.attr = (void *)attr;
+ sd->s_attr.attr = (void *)attr;

sysfs_addrm_start(&acxt, dir_sd);
rc = sysfs_add_one(&acxt, sd);
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 0d706a8..b6ac4e6 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -172,7 +172,7 @@ static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode)
inode->i_fop = &sysfs_file_operations;
break;
case SYSFS_KOBJ_BIN_ATTR:
- bin_attr = sd->s_elem.bin_attr.bin_attr;
+ bin_attr = sd->s_bin_attr.bin_attr;
inode->i_size = bin_attr->size;
inode->i_fop = &bin_fops;
break;
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 8ad38bc..ffa82e9 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -86,7 +86,7 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char
if (!sd)
goto out_put;

- sd->s_elem.symlink.target_sd = target_sd;
+ sd->s_symlink.target_sd = target_sd;
target_sd = NULL; /* reference is now owned by the symlink */

sysfs_addrm_start(&acxt, parent_sd);
@@ -142,7 +142,7 @@ static int sysfs_getlink(struct dentry *dentry, char * path)
{
struct sysfs_dirent *sd = dentry->d_fsdata;
struct sysfs_dirent *parent_sd = sd->s_parent;
- struct sysfs_dirent *target_sd = sd->s_elem.symlink.target_sd;
+ struct sysfs_dirent *target_sd = sd->s_symlink.target_sd;
int error;

mutex_lock(&sysfs_mutex);
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 6cf61c8..2a68bfa 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -32,11 +32,11 @@ struct sysfs_dirent {
const char *s_name;

union {
- struct sysfs_elem_dir dir;
- struct sysfs_elem_symlink symlink;
- struct sysfs_elem_attr attr;
- struct sysfs_elem_bin_attr bin_attr;
- } s_elem;
+ struct sysfs_elem_dir s_dir;
+ struct sysfs_elem_symlink s_symlink;
+ struct sysfs_elem_attr s_attr;
+ struct sysfs_elem_bin_attr s_bin_attr;
+ };

unsigned int s_flags;
ino_t s_ino;
--
1.5.0.3

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