sysfs: switch to ->s_d_op and ->d_release()
a) ->d_iput() is wrong here - what we do to inode is completely usual, it's
dentry->d_fsdata that we want to drop. Just use ->d_release().
b) switch to ->s_d_op - no need to play with d_set_d_op()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index efd373e..77c44ce 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -300,7 +300,7 @@
static int sysfs_dentry_delete(const struct dentry *dentry)
{
struct sysfs_dirent *sd = dentry->d_fsdata;
- return !!(sd->s_flags & SYSFS_FLAG_REMOVED);
+ return !(sd && !(sd->s_flags & SYSFS_FLAG_REMOVED));
}
static int sysfs_dentry_revalidate(struct dentry *dentry, unsigned int flags)
@@ -355,18 +355,15 @@
return 0;
}
-static void sysfs_dentry_iput(struct dentry *dentry, struct inode *inode)
+static void sysfs_dentry_release(struct dentry *dentry)
{
- struct sysfs_dirent * sd = dentry->d_fsdata;
-
- sysfs_put(sd);
- iput(inode);
+ sysfs_put(dentry->d_fsdata);
}
-static const struct dentry_operations sysfs_dentry_ops = {
+const struct dentry_operations sysfs_dentry_ops = {
.d_revalidate = sysfs_dentry_revalidate,
.d_delete = sysfs_dentry_delete,
- .d_iput = sysfs_dentry_iput,
+ .d_release = sysfs_dentry_release,
};
struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type)
@@ -786,6 +783,7 @@
ret = ERR_PTR(-ENOENT);
goto out_unlock;
}
+ dentry->d_fsdata = sysfs_get(sd);
/* attach dentry and inode */
inode = sysfs_get_inode(dir->i_sb, sd);
@@ -797,8 +795,6 @@
/* instantiate and hash dentry */
ret = d_find_alias(inode);
if (!ret) {
- d_set_d_op(dentry, &sysfs_dentry_ops);
- dentry->d_fsdata = sysfs_get(sd);
d_add(dentry, inode);
} else {
d_move(ret, dentry);