wrappers for ->i_mutex access

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 <viro@zeniv.linux.org.uk>

3 files changed, 11 insertions, 11 deletions

diff --git a/security/inode.c b/security/inode.c
index 16622ae..28414b0 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -99,7 +99,7 @@ struct dentry *securityfs_create_file(const char *name, umode_t mode,
 
 	dir = d_inode(parent);
 
-	mutex_lock(&dir->i_mutex);
+	inode_lock(dir);
 	dentry = lookup_one_len(name, parent, strlen(name));
 	if (IS_ERR(dentry))
 		goto out;
@@ -129,14 +129,14 @@ struct dentry *securityfs_create_file(const char *name, umode_t mode,
 	}
 	d_instantiate(dentry, inode);
 	dget(dentry);
-	mutex_unlock(&dir->i_mutex);
+	inode_unlock(dir);
 	return dentry;
 
 out1:
 	dput(dentry);
 	dentry = ERR_PTR(error);
 out:
-	mutex_unlock(&dir->i_mutex);
+	inode_unlock(dir);
 	simple_release_fs(&mount, &mount_count);
 	return dentry;
 }
@@ -195,7 +195,7 @@ void securityfs_remove(struct dentry *dentry)
 	if (!parent || d_really_is_negative(parent))
 		return;
 
-	mutex_lock(&d_inode(parent)->i_mutex);
+	inode_lock(d_inode(parent));
 	if (simple_positive(dentry)) {
 		if (d_is_dir(dentry))
 			simple_rmdir(d_inode(parent), dentry);
@@ -203,7 +203,7 @@ void securityfs_remove(struct dentry *dentry)
 			simple_unlink(d_inode(parent), dentry);
 		dput(dentry);
 	}
-	mutex_unlock(&d_inode(parent)->i_mutex);
+	inode_unlock(d_inode(parent));
 	simple_release_fs(&mount, &mount_count);
 }
 EXPORT_SYMBOL_GPL(securityfs_remove);
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index c21f09b..9d96551 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -121,7 +121,7 @@ static void ima_check_last_writer(struct integrity_iint_cache *iint,
 	if (!(mode & FMODE_WRITE))
 		return;
 
-	mutex_lock(&inode->i_mutex);
+	inode_lock(inode);
 	if (atomic_read(&inode->i_writecount) == 1) {
 		if ((iint->version != inode->i_version) ||
 		    (iint->flags & IMA_NEW_FILE)) {
@@ -130,7 +130,7 @@ static void ima_check_last_writer(struct integrity_iint_cache *iint,
 				ima_update_xattr(iint, file);
 		}
 	}
-	mutex_unlock(&inode->i_mutex);
+	inode_unlock(inode);
 }
 
 /**
@@ -186,7 +186,7 @@ static int process_measurement(struct file *file, int mask, int function,
 	if (action & IMA_FILE_APPRAISE)
 		function = FILE_CHECK;
 
-	mutex_lock(&inode->i_mutex);
+	inode_lock(inode);
 
 	if (action) {
 		iint = integrity_inode_get(inode);
@@ -250,7 +250,7 @@ out_free:
 	if (pathbuf)
 		__putname(pathbuf);
 out:
-	mutex_unlock(&inode->i_mutex);
+	inode_unlock(inode);
 	if ((rc && must_appraise) && (ima_appraise & IMA_APPRAISE_ENFORCE))
 		return -EACCES;
 	return 0;
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 732c1c7..1b1fd27 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -380,9 +380,9 @@ static int sel_open_policy(struct inode *inode, struct file *filp)
 		goto err;
 
 	if (i_size_read(inode) != security_policydb_len()) {
-		mutex_lock(&inode->i_mutex);
+		inode_lock(inode);
 		i_size_write(inode, security_policydb_len());
-		mutex_unlock(&inode->i_mutex);
+		inode_unlock(inode);
 	}
 
 	rc = security_read_policy(&plm->data, &plm->len);