diff options
Diffstat (limited to 'fs/kernfs/dir.c')
| -rw-r--r-- | fs/kernfs/dir.c | 25 |
1 files changed, 9 insertions, 16 deletions
diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c index 7be37c838007..b61a7efceb7a 100644 --- a/fs/kernfs/dir.c +++ b/fs/kernfs/dir.c @@ -566,7 +566,7 @@ static int kernfs_dop_revalidate(struct dentry *dentry, unsigned int flags) if (d_really_is_negative(dentry)) goto out_bad_unlocked; - kn = dentry->d_fsdata; + kn = kernfs_dentry_node(dentry); mutex_lock(&kernfs_mutex); /* The kernfs node has been deactivated */ @@ -574,7 +574,7 @@ static int kernfs_dop_revalidate(struct dentry *dentry, unsigned int flags) goto out_bad; /* The kernfs node has been moved? */ - if (dentry->d_parent->d_fsdata != kn->parent) + if (kernfs_dentry_node(dentry->d_parent) != kn->parent) goto out_bad; /* The kernfs node has been renamed */ @@ -594,14 +594,8 @@ out_bad_unlocked: return 0; } -static void kernfs_dop_release(struct dentry *dentry) -{ - kernfs_put(dentry->d_fsdata); -} - const struct dentry_operations kernfs_dops = { .d_revalidate = kernfs_dop_revalidate, - .d_release = kernfs_dop_release, }; /** @@ -617,8 +611,9 @@ const struct dentry_operations kernfs_dops = { */ struct kernfs_node *kernfs_node_from_dentry(struct dentry *dentry) { - if (dentry->d_sb->s_op == &kernfs_sops) - return dentry->d_fsdata; + if (dentry->d_sb->s_op == &kernfs_sops && + !d_really_is_negative(dentry)) + return kernfs_dentry_node(dentry); return NULL; } @@ -1056,7 +1051,7 @@ static struct dentry *kernfs_iop_lookup(struct inode *dir, unsigned int flags) { struct dentry *ret; - struct kernfs_node *parent = dentry->d_parent->d_fsdata; + struct kernfs_node *parent = dir->i_private; struct kernfs_node *kn; struct inode *inode; const void *ns = NULL; @@ -1073,8 +1068,6 @@ static struct dentry *kernfs_iop_lookup(struct inode *dir, ret = NULL; goto out_unlock; } - kernfs_get(kn); - dentry->d_fsdata = kn; /* attach dentry and inode */ inode = kernfs_get_inode(dir->i_sb, kn); @@ -1111,7 +1104,7 @@ static int kernfs_iop_mkdir(struct inode *dir, struct dentry *dentry, static int kernfs_iop_rmdir(struct inode *dir, struct dentry *dentry) { - struct kernfs_node *kn = dentry->d_fsdata; + struct kernfs_node *kn = kernfs_dentry_node(dentry); struct kernfs_syscall_ops *scops = kernfs_root(kn)->syscall_ops; int ret; @@ -1131,7 +1124,7 @@ static int kernfs_iop_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry, unsigned int flags) { - struct kernfs_node *kn = old_dentry->d_fsdata; + struct kernfs_node *kn = kernfs_dentry_node(old_dentry); struct kernfs_node *new_parent = new_dir->i_private; struct kernfs_syscall_ops *scops = kernfs_root(kn)->syscall_ops; int ret; @@ -1644,7 +1637,7 @@ static struct kernfs_node *kernfs_dir_next_pos(const void *ns, static int kernfs_fop_readdir(struct file *file, struct dir_context *ctx) { struct dentry *dentry = file->f_path.dentry; - struct kernfs_node *parent = dentry->d_fsdata; + struct kernfs_node *parent = kernfs_dentry_node(dentry); struct kernfs_node *pos = file->private_data; const void *ns = NULL; |