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kill file_permission() completely

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convert the last remaining caller to inode_permission()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-06-19 12:55:10 -04:00
parent 1b5d783c94
commit 3bfa784a65
3 changed files with 2 additions and 20 deletions
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18
fs/namei.c
View File

@ -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);

1
include/linux/fs.h
View File

@ -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);
/*

3
kernel/cgroup.c
View File

@ -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;