aboutsummaryrefslogtreecommitdiff
path: root/fs/sysfs/dir.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/sysfs/dir.c')
-rw-r--r--fs/sysfs/dir.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 511edef8b32..37430863bc6 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -29,6 +29,14 @@ static struct dentry_operations sysfs_dentry_ops = {
.d_iput = sysfs_d_iput,
};
+static unsigned int sysfs_inode_counter;
+ino_t sysfs_get_inum(void)
+{
+ if (unlikely(sysfs_inode_counter < 3))
+ sysfs_inode_counter = 3;
+ return sysfs_inode_counter++;
+}
+
/*
* Allocates a new sysfs_dirent and links it to the parent sysfs_dirent
*/
@@ -42,6 +50,7 @@ static struct sysfs_dirent * sysfs_new_dirent(struct sysfs_dirent * parent_sd,
return NULL;
memset(sd, 0, sizeof(*sd));
+ sd->s_ino = sysfs_get_inum();
atomic_set(&sd->s_count, 1);
atomic_set(&sd->s_event, 1);
INIT_LIST_HEAD(&sd->s_children);
@@ -461,7 +470,7 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
switch (i) {
case 0:
- ino = dentry->d_inode->i_ino;
+ ino = parent_sd->s_ino;
if (filldir(dirent, ".", 1, i, ino, DT_DIR) < 0)
break;
filp->f_pos++;
@@ -490,10 +499,7 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
name = sysfs_get_name(next);
len = strlen(name);
- if (next->s_dentry)
- ino = next->s_dentry->d_inode->i_ino;
- else
- ino = iunique(sysfs_sb, 2);
+ ino = next->s_ino;
if (filldir(dirent, name, len, filp->f_pos, ino,
dt_type(next)) < 0)