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Diffstat (limited to 'Documentation/filesystems/tmpfs.rst')
| -rw-r--r-- | Documentation/filesystems/tmpfs.rst | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/filesystems/tmpfs.rst b/Documentation/filesystems/tmpfs.rst index 2cd8fa332feb..06d6195eaa2c 100644 --- a/Documentation/filesystems/tmpfs.rst +++ b/Documentation/filesystems/tmpfs.rst @@ -123,6 +123,21 @@ sysfs file /sys/kernel/mm/transparent_hugepage/shmem_enabled: which can be used to deny huge pages on all tmpfs mounts in an emergency, or to force huge pages on all tmpfs mounts for testing. +tmpfs also supports quota with the following mount options + +======== ============================================================= +quota User and group quota accounting and enforcement is enabled on + the mount. Tmpfs is using hidden system quota files that are + initialized on mount. +usrquota User quota accounting and enforcement is enabled on the + mount. +grpquota Group quota accounting and enforcement is enabled on the + mount. +======== ============================================================= + +Note that tmpfs quotas do not support user namespaces so no uid/gid +translation is done if quotas are enabled inside user namespaces. + tmpfs has a mount option to set the NUMA memory allocation policy for all files in that instance (if CONFIG_NUMA is enabled) - which can be adjusted on the fly via 'mount -o remount ...' |