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wrappers for ->i_mutex access

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parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).

Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.

Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2016-01-22 15:40:57 -05:00
commit 5955102c99
177 changed files with 908 additions and 883 deletions
Download patch file Download diff file Expand all files Collapse all files

16
drivers/oprofile/oprofilefs.c
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@ -138,22 +138,22 @@ static int __oprofilefs_create_file(struct dentry *root, char const *name,
struct dentry *dentry;
struct inode *inode;
mutex_lock(&d_inode(root)->i_mutex);
inode_lock(d_inode(root));
dentry = d_alloc_name(root, name);
if (!dentry) {
mutex_unlock(&d_inode(root)->i_mutex);
inode_unlock(d_inode(root));
return -ENOMEM;
}
inode = oprofilefs_get_inode(root->d_sb, S_IFREG | perm);
if (!inode) {
dput(dentry);
mutex_unlock(&d_inode(root)->i_mutex);
inode_unlock(d_inode(root));
return -ENOMEM;
}
inode->i_fop = fops;
inode->i_private = priv;
d_add(dentry, inode);
mutex_unlock(&d_inode(root)->i_mutex);
inode_unlock(d_inode(root));
return 0;
}
@ -215,22 +215,22 @@ struct dentry *oprofilefs_mkdir(struct dentry *parent, char const *name)
struct dentry *dentry;
struct inode *inode;
mutex_lock(&d_inode(parent)->i_mutex);
inode_lock(d_inode(parent));
dentry = d_alloc_name(parent, name);
if (!dentry) {
mutex_unlock(&d_inode(parent)->i_mutex);
inode_unlock(d_inode(parent));
return NULL;
}
inode = oprofilefs_get_inode(parent->d_sb, S_IFDIR | 0755);
if (!inode) {
dput(dentry);
mutex_unlock(&d_inode(parent)->i_mutex);
inode_unlock(d_inode(parent));
return NULL;
}
inode->i_op = &simple_dir_inode_operations;
inode->i_fop = &simple_dir_operations;
d_add(dentry, inode);
mutex_unlock(&d_inode(parent)->i_mutex);
inode_unlock(d_inode(parent));
return dentry;
}