diff --git a/README b/README index 40b5a8b..fb65f2f 100644 --- a/README +++ b/README @@ -19,9 +19,8 @@ psankar@linux-9dni:~/src/simplefs> make psankar@linux-9dni:~/src/simplefs> dd bs=4096 count=100 if=/dev/zero of=image 100+0 records in 100+0 records out -409600 bytes (410 kB) copied, 0.00106026 s, 386 MB/s - -psankar@linux-9dni:~/src/simplefs> ./mkfs-simplefs image +409600 bytes (410 kB) copied, 0.00106827 s, 383 MB/s +psankar@linux-9dni:~/src/simplefs> ./mkfs-simplefs image Super block written succesfully root directory inode written succesfully welcomefile inode written succesfully @@ -33,27 +32,72 @@ welcomefilebody has been written succesfully psankar@linux-9dni:~/src/simplefs> Now as root: - linux-9dni:/home/psankar/src/simplefs # insmod simplefs.ko ; mount -o loop -t simplefs image /home/psankar/src/simplefs/mount/ ; dmesg -[51422.091945] Sucessfully registered simplefs -[51422.094713] The magic number obtained in disk is: [268640275] -[51422.094719] simplefs filesystem of version [1] formatted with a block size of [4096] detected in the device. -[51422.094744] simplefs is succesfully mounted on [/dev/loop5] - -linux-9dni:/home/psankar/src/simplefs # cat mount/vanakkam +[ 7064.752268] Sucessfully registered simplefs +[ 7064.756404] The magic number obtained in disk is: [268640275] +[ 7064.756410] simplefs filesystem of version [1] formatted with a block size of [4096] detected in the device. +[ 7064.756457] simplefs is succesfully mounted on [/dev/loop10] +linux-9dni:/home/psankar/src/simplefs # cd mount/ +linux-9dni:/home/psankar/src/simplefs/mount # cat vanakkam Love is God. God is Love. Anbe Murugan. - -linux-9dni:/home/psankar/src/simplefs # cp mount/vanakkam . - -linux-9dni:/home/psankar/src/simplefs # cat vanakkam +linux-9dni:/home/psankar/src/simplefs/mount # cp vanakkam hello +linux-9dni:/home/psankar/src/simplefs/mount # cat hello Love is God. God is Love. Anbe Murugan. +linux-9dni:/home/psankar/src/simplefs/mount # echo "Let there be files :-)" > hello +linux-9dni:/home/psankar/src/simplefs/mount # cat hello +Let there be files :-) +linux-9dni:/home/psankar/src/simplefs/mount # touch world +linux-9dni:/home/psankar/src/simplefs/mount # cat world +linux-9dni:/home/psankar/src/simplefs/mount # echo "Hello World" > world +linux-9dni:/home/psankar/src/simplefs/mount # cat world +Hello World +linux-9dni:/home/psankar/src/simplefs/mount # .. +linux-9dni:/home/psankar/src/simplefs # umount mount ; rmmod simplefs.ko +linux-9dni:/home/psankar/src/simplefs # insmod simplefs.ko ; mount -o loop -t simplefs image /home/psankar/src/simplefs/mount/ +linux-9dni:/home/psankar/src/simplefs # cd mount/ +linux-9dni:/home/psankar/src/simplefs/mount # cat world +Hello World +linux-9dni:/home/psankar/src/simplefs/mount # cat hello +Let there be files :-) +linux-9dni:/home/psankar/src/simplefs/mount # .. +linux-9dni:/home/psankar/src/simplefs # umount mount ; rmmod simplefs.ko ; dmesg -c +[ 7064.752268] Sucessfully registered simplefs +[ 7064.756404] The magic number obtained in disk is: [268640275] +[ 7064.756410] simplefs filesystem of version [1] formatted with a block size of [4096] detected in the device. +[ 7064.756457] simplefs is succesfully mounted on [/dev/loop10] +[ 7070.816973] Read request for file of size: [41] +[ 7081.274818] No inode found for the filename [hello] +[ 7081.274835] No inode found for the filename [hello] +[ 7081.274853] No inode found for the filename [hello] +[ 7081.274874] simplefs create fs object is called +[ 7081.274888] Got new unique inode number [10] +[ 7081.274890] New file creation request +[ 7081.275037] Returning success after creating the file/directory +[ 7081.275050] Read request for file of size: [41] +[ 7081.275054] file size write begins +[ 7081.275067] The new filesize that is written is: [41] and len was: [41] +[ 7083.645271] Read request for file of size: [41] +[ 7118.672573] file size write begins +[ 7118.672655] The new filesize that is written is: [23] and len was: [23] +[ 7120.387921] Read request for file of size: [23] +[ 7129.434414] No inode found for the filename [world] +[ 7129.434424] simplefs create fs object is called +[ 7129.434429] Got new unique inode number [11] +[ 7129.434430] New file creation request +[ 7129.434568] Returning success after creating the file/directory +[ 7131.279727] Read request for file of size: [0] +[ 7140.382962] file size write begins +[ 7140.383083] The new filesize that is written is: [12] and len was: [12] +[ 7142.150113] Read request for file of size: [12] +[ 7153.773088] simplefs superblock is destroyed. Unmount succesful. +[ 7153.778315] Sucessfully unregistered simplefs +[ 7163.614771] Sucessfully registered simplefs +[ 7163.618539] The magic number obtained in disk is: [268640275] +[ 7163.618546] simplefs filesystem of version [1] formatted with a block size of [4096] detected in the device. +[ 7163.618587] simplefs is succesfully mounted on [/dev/loop11] +[ 7173.341241] Read request for file of size: [12] +[ 7181.062284] Read request for file of size: [23] +[ 7195.867825] simplefs superblock is destroyed. Unmount succesful. +[ 7195.872485] Sucessfully unregistered simplefs +linux-9dni:/home/psankar/src/simplefs # -linux-9dni:/home/psankar/src/simplefs # umount mount; rmmod simplefs.ko ; dmesg -[51422.091945] Sucessfully registered simplefs -[51422.094713] The magic number obtained in disk is: [268640275] -[51422.094719] simplefs filesystem of version [1] formatted with a block size of [4096] detected in the device. -[51422.094744] simplefs is succesfully mounted on [/dev/loop5] -[51469.971919] simplefs superblock is destroyed. Unmount succesful. -[51469.977426] Sucessfully unregistered simplefs - -linux-9dni:/home/psankar/src/simplefs #