GitHub - jamorton/xv6-lfs: simple log-structured filesystem implementation for xv6

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simple log-structured filesystem implementation for xv6

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Name		Name	Last commit message	Last commit date
Latest commit History 42 Commits
.gitignore		.gitignore
Makefile		Makefile
README		README
README.xv6		README.xv6
asm.h		asm.h
bio.c		bio.c
bootasm.S		bootasm.S
bootmain.c		bootmain.c
bootother.S		bootother.S
cat.c		cat.c
console.c		console.c
data.S		data.S
defs.h		defs.h
dot-bochsrc		dot-bochsrc
echo.c		echo.c
elf.h		elf.h
exec.c		exec.c
fcntl.h		fcntl.h
file.c		file.c
file.h		file.h
forktest.c		forktest.c
fs.c		fs.c
fs.h		fs.h
gdbutil		gdbutil
grep.c		grep.c
ide.c		ide.c
init.c		init.c
initcode.S		initcode.S
ioapic.c		ioapic.c
kalloc.c		kalloc.c
kbd.c		kbd.c
kbd.h		kbd.h
kill.c		kill.c
lapic.c		lapic.c
lfstest.c		lfstest.c
ln.c		ln.c
ls.c		ls.c
main.c		main.c
mkdir.c		mkdir.c
mkfs.c		mkfs.c
mmu.h		mmu.h
mp.c		mp.c
mp.h		mp.h
multiboot.S		multiboot.S
param.h		param.h
picirq.c		picirq.c
pipe.c		pipe.c
pr.pl		pr.pl
printf.c		printf.c
proc.c		proc.c
proc.h		proc.h
rm.c		rm.c
runoff		runoff
runoff.list		runoff.list
runoff.spec		runoff.spec
runoff1		runoff1
sh.c		sh.c
sign.pl		sign.pl
spinlock.c		spinlock.c
spinlock.h		spinlock.h
stat.h		stat.h
stressfs.c		stressfs.c
string.c		string.c
swtch.S		swtch.S
syscall.c		syscall.c
syscall.h		syscall.h
sysfile.c		sysfile.c
sysproc.c		sysproc.c
test10mb		test10mb
timer.c		timer.c
toc.ftr		toc.ftr
toc.hdr		toc.hdr
trap.c		trap.c
trapasm.S		trapasm.S
traps.h		traps.h
types.h		types.h
uart.c		uart.c
ulib.c		ulib.c
umalloc.c		umalloc.c
user.h		user.h
usertests.c		usertests.c
usys.S		usys.S
vectors.pl		vectors.pl
vm.c		vm.c
wc.c		wc.c
x86.h		x86.h
zombie.c		zombie.c

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An implementation of a log-structured filesystem into xv6.
Jon Morton, 2011.

current limitations:
        - only one inode per block. this greatly simplifies the imap.
        - the imap can only be one block long.
        - writing to inodes cannot extend into indirect levels.

implementation order, as time allows:
        [x] mkfs
        [x] read-only lfs
        [x] segment writing
        [ ] segment cleaning

(original xv6 readme is in README.xv6)