A simple filesystem to understand things.

This is a Work In Progress. Do not use this yet.

The source files are licensed under Creative Commons Zero License.
More information at:	http://creativecommons.org/publicdomain/zero/1.0/
Full license text at:	http://creativecommons.org/publicdomain/zero/1.0/legalcode

To compile:
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install linux kernel sources and run make from the checkedout directory.

To test:
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One-time-activity:

linux-okb0:/home/psankar/src/simplefs > dd bs=1M count=100 if=/dev/zero of=image
linux-okb0:/home/psankar/src/simplefs > mkdir mount

Repeat everytime after making changes to the source:

linux-okb0:/home/psankar/src/simplefs > make
linux-okb0:/home/psankar/src/simplefs > su - ; # switch to root user if not already, or use sudo

linux-okb0:/home/psankar/src/simplefs # dmesg -c
linux-okb0:/home/psankar/src/simplefs # insmod simplefs.ko ; mount -o loop -t simplefs image /home/psankar/src/simplefs/mount/ ; dmesg
[ 5788.269663] Sucessfully registered simplefs
[ 5788.274803] simplefs is succesfully mounted on [/dev/loop2]
linux-okb0:/home/psankar/src/simplefs # cd mount/
linux-okb0:/home/psankar/src/simplefs/mount # ls
linux-okb0:/home/psankar/src/simplefs/mount # cd ..
linux-okb0:/home/psankar/src/simplefs # umount mount ; rmmod simplefs.ko
linux-okb0:/home/psankar/src/simplefs # dmesg
[ 5788.269663] Sucessfully registered simplefs
[ 5788.274803] simplefs is succesfully mounted on [/dev/loop2]
[ 5814.008604] simplefs superblock is destroyed. Unmount succesful.
[ 5814.014065] Sucessfully unregistered simplefs
linux-okb0:/home/psankar/src/simplefs #