CONFIG_SECURITY_SELINUX_SIDTAB_HASH_BITS: SELinux sidtab hashtable size

General informations

The Linux kernel configuration item CONFIG_SECURITY_SELINUX_SIDTAB_HASH_BITS has multiple definitions:

SELinux sidtab hashtable size found in security/selinux/Kconfig

The configuration item CONFIG_SECURITY_SELINUX_SIDTAB_HASH_BITS:

• prompt: SELinux sidtab hashtable size
• type: int
• depends on: CONFIG_SECURITY_SELINUX
• defined in security/selinux/Kconfig
• found in Linux kernels: 6.6–6.14, 6.15-rc+HEAD

Help text

This option sets the number of buckets used in the sidtab hashtable to 2^SECURITY_SELINUX_SIDTAB_HASH_BITS buckets. The number of hash collisions may be viewed at /sys/fs/selinux/ss/sidtab_hash_stats. If chain lengths are high (e.g. > 20) then selecting a higher value here will ensure that lookups times are short and stable.

NSA SELinux sidtab hashtable size found in security/selinux/Kconfig

The configuration item CONFIG_SECURITY_SELINUX_SIDTAB_HASH_BITS:

• prompt: NSA SELinux sidtab hashtable size
• type: int
• depends on: CONFIG_SECURITY_SELINUX
• defined in security/selinux/Kconfig
• found in Linux kernels: 5.6–5.19, 6.0–6.5

Help text

This option sets the number of buckets used in the sidtab hashtable to 2^SECURITY_SELINUX_SIDTAB_HASH_BITS buckets. The number of hash collisions may be viewed at /sys/fs/selinux/ss/sidtab_hash_stats. If chain lengths are high (e.g. > 20) then selecting a higher value here will ensure that lookups times are short and stable.

Hardware

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This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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