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sysfs: make sysfs_root a regular directory dirent

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sysfs_root is different from a regular directory dirent in that it's
of type SYSFS_ROOT and doesn't have a name.  These differences aren't
used by anybody and only adds to complexity.  Make sysfs_root a
regular directory dirent.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Tejun Heo 2007-09-20 16:05:12 +09:00 committed by Greg Kroah-Hartman
parent d6b4fd2fae
commit dc2f75f0e0
3 changed files with 6 additions and 11 deletions
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5
fs/sysfs/inode.c
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@ -157,11 +157,6 @@ static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode)
/* initialize inode according to type */
switch (sysfs_type(sd)) {
case SYSFS_ROOT:
inode->i_op = &sysfs_dir_inode_operations;
inode->i_fop = &sysfs_dir_operations;
inc_nlink(inode); /* directory, account for "." */
break;
case SYSFS_DIR:
inode->i_op = &sysfs_dir_inode_operations;
inode->i_fop = &sysfs_dir_operations;

3
fs/sysfs/mount.c
View File

@ -24,8 +24,9 @@ static const struct super_operations sysfs_ops = {
};
struct sysfs_dirent sysfs_root = {
.s_name = "",
.s_count = ATOMIC_INIT(1),
.s_flags = SYSFS_ROOT,
.s_flags = SYSFS_DIR,
.s_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO,
.s_ino = 1,
};

9
fs/sysfs/sysfs.h
View File

@ -48,11 +48,10 @@ struct sysfs_dirent {
#define SD_DEACTIVATED_BIAS INT_MIN
#define SYSFS_TYPE_MASK 0x00ff
#define SYSFS_ROOT 0x0001
#define SYSFS_DIR 0x0002
#define SYSFS_KOBJ_ATTR 0x0004
#define SYSFS_KOBJ_BIN_ATTR 0x0008
#define SYSFS_KOBJ_LINK 0x0020
#define SYSFS_DIR 0x0001
#define SYSFS_KOBJ_ATTR 0x0002
#define SYSFS_KOBJ_BIN_ATTR 0x0004
#define SYSFS_KOBJ_LINK 0x0008
#define SYSFS_COPY_NAME (SYSFS_DIR | SYSFS_KOBJ_LINK)
#define SYSFS_FLAG_MASK ~SYSFS_TYPE_MASK