Quoting Eric W. Biederman (ebiederm@xxxxxxxxxxxx):
> From: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
>
> Currently sysfs_get_inode magically returns an inode on
> sysfs_sb. Make the super_block parameter explicit and
> the code becomes clearer.
>
> Acked-by: Tejun Heo <tj@xxxxxxxxxx>
> Signed-off-by: Eric W. Biederman <ebiederm@xxxxxxxxxxxxxxxxxx>
Acked-by: Serge Hallyn <serue@xxxxxxxxxx>
> ---
> fs/sysfs/dir.c | 2 +-
> fs/sysfs/inode.c | 5 +++--
> fs/sysfs/mount.c | 2 +-
> fs/sysfs/sysfs.h | 2 +-
> 4 files changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
> index 1c364be..a491c72 100644
> --- a/fs/sysfs/dir.c
> +++ b/fs/sysfs/dir.c
> @@ -701,7 +701,7 @@ static struct dentry * sysfs_lookup(struct inode *dir, struct dentry *dentry,
> }
>
> /* attach dentry and inode */
> - inode = sysfs_get_inode(sd);
> + inode = sysfs_get_inode(dir->i_sb, sd);
> if (!inode) {
> ret = ERR_PTR(-ENOMEM);
> goto out_unlock;
> diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
> index f0172b3..487e33c 100644
> --- a/fs/sysfs/inode.c
> +++ b/fs/sysfs/inode.c
> @@ -271,6 +271,7 @@ static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode)
>
> /**
> * sysfs_get_inode - get inode for sysfs_dirent
> + * @sb: super block
> * @sd: sysfs_dirent to allocate inode for
> *
> * Get inode for @sd. If such inode doesn't exist, a new inode
> @@ -283,11 +284,11 @@ static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode)
> * RETURNS:
> * Pointer to allocated inode on success, NULL on failure.
> */
> -struct inode * sysfs_get_inode(struct sysfs_dirent *sd)
> +struct inode * sysfs_get_inode(struct super_block *sb, struct sysfs_dirent *sd)
> {
> struct inode *inode;
>
> - inode = iget_locked(sysfs_sb, sd->s_ino);
> + inode = iget_locked(sb, sd->s_ino);
> if (inode && (inode->i_state & I_NEW))
> sysfs_init_inode(sd, inode);
>
> diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
> index 372a32c..77bce54 100644
> --- a/fs/sysfs/mount.c
> +++ b/fs/sysfs/mount.c
> @@ -55,7 +55,7 @@ static int sysfs_fill_super(struct super_block *sb, void *data, int silent)
>
> /* get root inode, initialize and unlock it */
> mutex_lock(&sysfs_mutex);
> - inode = sysfs_get_inode(&sysfs_root);
> + inode = sysfs_get_inode(sb, &sysfs_root);
> mutex_unlock(&sysfs_mutex);
> if (!inode) {
> pr_debug("sysfs: could not get root inode\n");
> diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
> index 85d5c6c..1ae6009 100644
> --- a/fs/sysfs/sysfs.h
> +++ b/fs/sysfs/sysfs.h
> @@ -169,7 +169,7 @@ static inline void __sysfs_put(struct sysfs_dirent *sd)
> /*
> * inode.c
> */
> -struct inode *sysfs_get_inode(struct sysfs_dirent *sd);
> +struct inode *sysfs_get_inode(struct super_block *sb, struct sysfs_dirent *sd);
> void sysfs_delete_inode(struct inode *inode);
> int sysfs_sd_setattr(struct sysfs_dirent *sd, struct iattr *iattr);
> int sysfs_permission(struct inode *inode, int mask);
> --
> 1.6.5.2.143.g8cc62
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