summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--fs/namei.c18
-rw-r--r--include/linux/fs.h1
-rw-r--r--kernel/cgroup.c3
3 files changed, 2 insertions, 20 deletions
diff --git a/fs/namei.c b/fs/namei.c
index cf25546..4ad2b78 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -303,23 +303,6 @@ int inode_permission(struct inode *inode, int mask)
return security_inode_permission(inode, mask);
}
-/**
- * file_permission - check for additional access rights to a given file
- * @file: file to check access rights for
- * @mask: right to check for (%MAY_READ, %MAY_WRITE, %MAY_EXEC)
- *
- * Used to check for read/write/execute permissions on an already opened
- * file.
- *
- * Note:
- * Do not use this function in new code. All access checks should
- * be done using inode_permission().
- */
-int file_permission(struct file *file, int mask)
-{
- return inode_permission(file->f_path.dentry->d_inode, mask);
-}
-
/*
* get_write_access() gets write permission for a file.
* put_write_access() releases this write permission.
@@ -3405,7 +3388,6 @@ EXPORT_SYMBOL(kern_path_parent);
EXPORT_SYMBOL(kern_path);
EXPORT_SYMBOL(vfs_path_lookup);
EXPORT_SYMBOL(inode_permission);
-EXPORT_SYMBOL(file_permission);
EXPORT_SYMBOL(unlock_rename);
EXPORT_SYMBOL(vfs_create);
EXPORT_SYMBOL(vfs_follow_link);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index a8735e7..d04e555 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1490,7 +1490,6 @@ extern void dentry_unhash(struct dentry *dentry);
/*
* VFS file helper functions.
*/
-extern int file_permission(struct file *, int);
extern void inode_init_owner(struct inode *inode, const struct inode *dir,
mode_t mode);
/*
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 2731d11..e1c72c0 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -3542,7 +3542,8 @@ static int cgroup_write_event_control(struct cgroup *cgrp, struct cftype *cft,
}
/* the process need read permission on control file */
- ret = file_permission(cfile, MAY_READ);
+ /* AV: shouldn't we check that it's been opened for read instead? */
+ ret = inode_permission(cfile->f_path.dentry->d_inode, MAY_READ);
if (ret < 0)
goto fail;
OpenPOWER on IntegriCloud