GENERIC_PERMISSION

Section: The Linux VFS (9)
Updated: February 2011
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NAME

generic_permission - check for access rights on a Posix-like filesystem  

SYNOPSIS

int generic_permission(struct inode * inode, int mask, int (*check_acl) (struct inode *inode, int mask));
 

ARGUMENTS

inode

inode to check access rights for

mask

right to check for (MAY_READ, MAY_WRITE, MAY_EXEC)

check_acl

optional callback to check for Posix ACLs
 

DESCRIPTION

Used to check for read/write/execute permissions on a file. We use lqfsuidrq for this, letting us set arbitrary permissions for filesystem access without changing the lqnormalrq uids which are used for other things..  

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