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Plugin for tuning options of mount-points.
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Gets the information about disks, partitions and mountpoints. Stores information about used filesystem and
creates a list of all underlying devices (in case of LVM) for each mountpoint.
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setdefaultt sett addt _mountpoint_topology( t clst mountpoint_topologyt current_diskR R t linet columnst device_typet device_removableR R t
mountpoint( ( s? /usr/lib/python2.7/site-packages/tuned/plugins/plugin_mounts.pyt _generate_mountpoint_topology s, ,"" (c C s; | j ƒ t | _ t | j j ƒ ƒ | _ t ƒ | _ d S( N( R$ R t _devices_supportedR R t keyst
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Get device cache type. This will work only for devices on SCSI kernel subsystem.
s+ /sys/block/%s/device/scsi_disk/*/cache_typeN( t globt cmdt read_filet stripR ( R) t devicet source_filenamest source_filename( ( s? /usr/lib/python2.7/site-packages/tuned/plugins/plugin_mounts.pyt _get_device_cache_typeH s
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Checks if the device has 'write back' cache. If the cache type cannot be determined, asume some other cache.
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Checks if a given mountpoint is mounted with barriers enabled or disabled.
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Remounts partition.
s /usr/bin/mounts -os
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j d | ƒ | j | d ƒ | j j | ƒ d S( Nt command_nameR+ R t forceR t exts filesystem not supporteds device uses write back caches unknown current settings barriers already disableds# not disabling barriers on '%s' (%s)s disabling barriers on '%s's barrier=0s enabling barriers on '%s's barrier=1( t _storage_keyt strt lowert _option_boolR R t
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reject_reasont original_value( ( s? /usr/lib/python2.7/site-packages/tuned/plugins/plugin_mounts.pyt _disable_barriers~ sN ( t __name__t
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