1GENERIC_PERMISSION(9)            The Linux VFS           GENERIC_PERMISSION(9)
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NAME

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

9       int generic_permission(struct inode * inode, int mask,
10                              int (*check_acl) (struct inode *inode, int mask));
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ARGUMENTS

13       inode
14           inode to check access rights for
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16       mask
17           right to check for (MAY_READ, MAY_WRITE, MAY_EXEC)
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19       check_acl
20           optional callback to check for Posix ACLs
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DESCRIPTION

23       Used to check for read/write/execute permissions on a file. We use
24       “fsuid” for this, letting us set arbitrary permissions for filesystem
25       access without changing the “normal” uids which are used for other
26       things..
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29Kernel Hackers Manual 2.6.         June 2019             GENERIC_PERMISSION(9)
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