Support CramFs image directly mapped in physical memory
configname: CONFIG_CRAMFS_MTD
Linux Kernel Configuration
└─>File systems
└─>Miscellaneous filesystems
└─>Support CramFs image directly mapped in physical memory
In linux kernel since version 3.10 (release Date: 2013-06-30)
This option allows the CramFs driver to load data directly from
a linear addressed memory range (usually non-volatile memory
like flash) instead of going through the block device layer.
This saves some memory since no intermediate buffering is
necessary.
The location of the CramFs image is determined by a
MTD device capable of direct memory mapping e.g. from
the 'physmap' map driver or a resulting MTD partition.
For example, this would mount the cramfs image stored in
the MTD partition named "xip_fs" on the /mnt mountpoint:
mount -t cramfs mtd:xip_fs /mnt
If unsure, say N.
a linear addressed memory range (usually non-volatile memory
like flash) instead of going through the block device layer.
This saves some memory since no intermediate buffering is
necessary.
The location of the CramFs image is determined by a
MTD device capable of direct memory mapping e.g. from
the 'physmap' map driver or a resulting MTD partition.
For example, this would mount the cramfs image stored in
the MTD partition named "xip_fs" on the /mnt mountpoint:
mount -t cramfs mtd:xip_fs /mnt
If unsure, say N.