INODE_PERMISSION(9) The Linux VFS INODE_PERMISSION(9)
NAME
inode_permission - check for access rights to a given inode
SYNOPSIS
int inode_permission(struct inode * inode, int mask);
ARGUMENTS
inode
inode to check permission on
mask
right to check for (MAY_READ, MAY_WRITE, MAY_EXEC)
DESCRIPTION
Used to check for read/write/execute permissions on an inode. We use "fsuid" for this, letting us set arbitrary permissions for filesystem
access without changing the "normal" uids which are used for other things.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 INODE_PERMISSION(9)