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Subject[PATCH 6/7] sysfs: Pass super_block to sysfs_get_inode
Date
From: Eric W. Biederman <ebiederm@xmission.com>

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@kernel.org>
Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
---
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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