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Update README with TODO and test instructions
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Sankar சங்கர்
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README
95
README
@ -34,7 +34,9 @@ A big thanks should go to the kernelnewbies mailing list for helping me with cla
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TODO
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-----
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- Check the locks. Remove/Add as necessary.
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- Check the locks. Remove/Add locks as necessary
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- Fix the bug related to creation of files in subdirs
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- Fix various README / TODO comments in the code
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- Send for review
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- Make a 1.0 release
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- After the 1.0 release, start with support for extents, which on completion will be 2.0
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@ -72,72 +74,31 @@ welcomefilebody has been written succesfully
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psankar@linux-9dni:~/src/simplefs>
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Now as root:
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linux-9dni:/home/psankar/src/simplefs # insmod simplefs.ko ; mount -o loop -t simplefs image /home/psankar/src/simplefs/mount/ ; dmesg
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[ 7064.752268] Sucessfully registered simplefs
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[ 7064.756404] The magic number obtained in disk is: [268640275]
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[ 7064.756410] simplefs filesystem of version [1] formatted with a block size of [4096] detected in the device.
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[ 7064.756457] simplefs is succesfully mounted on [/dev/loop10]
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linux-9dni:/home/psankar/src/simplefs # cd mount/
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linux-9dni:/home/psankar/src/simplefs/mount # cat vanakkam
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Love is God. God is Love. Anbe Murugan.
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linux-9dni:/home/psankar/src/simplefs/mount # cp vanakkam hello
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linux-9dni:/home/psankar/src/simplefs/mount # cat hello
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Love is God. God is Love. Anbe Murugan.
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linux-9dni:/home/psankar/src/simplefs/mount # echo "Let there be files :-)" > hello
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linux-9dni:/home/psankar/src/simplefs/mount # cat hello
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Let there be files :-)
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linux-9dni:/home/psankar/src/simplefs/mount # touch world
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linux-9dni:/home/psankar/src/simplefs/mount # cat world
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linux-9dni:/home/psankar/src/simplefs/mount # echo "Hello World" > world
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linux-9dni:/home/psankar/src/simplefs/mount # cat world
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Hello World
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linux-9dni:/home/psankar/src/simplefs/mount # ..
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linux-9dni:/home/psankar/src/simplefs # umount mount ; rmmod simplefs.ko
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linux-9dni:/home/psankar/src/simplefs # insmod simplefs.ko ; mount -o loop -t simplefs image /home/psankar/src/simplefs/mount/
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linux-9dni:/home/psankar/src/simplefs # cd mount/
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linux-9dni:/home/psankar/src/simplefs/mount # cat world
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linux-9dni:/home/psankar/src/simplefs/mount # ls
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vanakkam
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linux-9dni:/home/psankar/src/simplefs/mount # cat vanakkam
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Love is God. God is Love. Anbe Murugan.
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linux-9dni:/home/psankar/src/simplefs/mount # cp vanakkam Hello
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linux-9dni:/home/psankar/src/simplefs/mount # cat Hello
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Love is God. God is Love. Anbe Murugan.
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linux-9dni:/home/psankar/src/simplefs/mount # echo "Hello World" > Hello
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linux-9dni:/home/psankar/src/simplefs/mount # cat Hello
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Hello World
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linux-9dni:/home/psankar/src/simplefs/mount # cat hello
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Let there be files :-)
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linux-9dni:/home/psankar/src/simplefs/mount # ..
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linux-9dni:/home/psankar/src/simplefs # umount mount ; rmmod simplefs.ko ; dmesg -c
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[ 7064.752268] Sucessfully registered simplefs
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[ 7064.756404] The magic number obtained in disk is: [268640275]
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[ 7064.756410] simplefs filesystem of version [1] formatted with a block size of [4096] detected in the device.
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[ 7064.756457] simplefs is succesfully mounted on [/dev/loop10]
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[ 7070.816973] Read request for file of size: [41]
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[ 7081.274818] No inode found for the filename [hello]
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[ 7081.274835] No inode found for the filename [hello]
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[ 7081.274853] No inode found for the filename [hello]
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[ 7081.274874] simplefs create fs object is called
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[ 7081.274888] Got new unique inode number [10]
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[ 7081.274890] New file creation request
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[ 7081.275037] Returning success after creating the file/directory
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[ 7081.275050] Read request for file of size: [41]
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[ 7081.275054] file size write begins
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[ 7081.275067] The new filesize that is written is: [41] and len was: [41]
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[ 7083.645271] Read request for file of size: [41]
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[ 7118.672573] file size write begins
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[ 7118.672655] The new filesize that is written is: [23] and len was: [23]
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[ 7120.387921] Read request for file of size: [23]
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[ 7129.434414] No inode found for the filename [world]
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[ 7129.434424] simplefs create fs object is called
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[ 7129.434429] Got new unique inode number [11]
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[ 7129.434430] New file creation request
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[ 7129.434568] Returning success after creating the file/directory
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[ 7131.279727] Read request for file of size: [0]
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[ 7140.382962] file size write begins
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[ 7140.383083] The new filesize that is written is: [12] and len was: [12]
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[ 7142.150113] Read request for file of size: [12]
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[ 7153.773088] simplefs superblock is destroyed. Unmount succesful.
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[ 7153.778315] Sucessfully unregistered simplefs
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[ 7163.614771] Sucessfully registered simplefs
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[ 7163.618539] The magic number obtained in disk is: [268640275]
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[ 7163.618546] simplefs filesystem of version [1] formatted with a block size of [4096] detected in the device.
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[ 7163.618587] simplefs is succesfully mounted on [/dev/loop11]
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[ 7173.341241] Read request for file of size: [12]
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[ 7181.062284] Read request for file of size: [23]
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[ 7195.867825] simplefs superblock is destroyed. Unmount succesful.
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[ 7195.872485] Sucessfully unregistered simplefs
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linux-9dni:/home/psankar/src/simplefs #
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linux-9dni:/home/psankar/src/simplefs/mount # mkdir dir
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linux-9dni:/home/psankar/src/simplefs/mount # cd dir
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linux-9dni:/home/psankar/src/simplefs/mount/dir # cp ../Hello .
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linux-9dni:/home/psankar/src/simplefs/mount/dir # cat Hello
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Hello World
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linux-9dni:/home/psankar/src/simplefs/mount/dir # echo "Vanakkam Ulagam" > Hello
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linux-9dni:/home/psankar/src/simplefs/mount/dir # cat Hello
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Vanakkam Ulagam
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linux-9dni:/home/psankar/src/simplefs/mount/dir # ...
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linux-9dni:/home/psankar/src/simplefs # umount mount ; rmmod simplefs.ko
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linux-9dni:/home/psankar/src/simplefs # #Now let us remount and see if all the changes were written to the disk
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linux-9dni:/home/psankar/src/simplefs # insmod simplefs.ko ; mount -o loop -t simplefs image /home/psankar/src/simplefs/mount/
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linux-9dni:/home/psankar/src/simplefs # cd mount/
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linux-9dni:/home/psankar/src/simplefs/mount # cat Hello
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Hello World
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linux-9dni:/home/psankar/src/simplefs/mount #
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