135e2/xv6-labs.git - xv6-labs-2024-winter

Age	Commit message (Collapse)	Author	Files	Lines
2016-08-25	Remove trailing white space with:	Frans Kaashoek	1	-1/+1
	for f in .{h,c}; do sed -i .sed 's/[[:blank:]]$//' $f; done (Thanks to Nicolás Wolovick)
2011-08-29	Revert "Introduce and use sleeplocks instead of BUSY flags"	Frans Kaashoek	1	-6/+1
	My changes have a race with re-used bufs and the code doesn't seem to get shorter Keep the changes that fixed ip->off race This reverts commit 3a5fa7ed9020eaf8ab843a16d26db7393b2ec072. Conflicts: defs.h file.c file.h
2011-08-26	Introduce and use sleeplocks instead of BUSY flags	Frans Kaashoek	1	-1/+6
	Remove I_BUSY, B_BUSY, and intrans defs and usages One spinlock per buf to avoid ugly loop in bget fix race in filewrite (don't update f->off after releasing lock)
2009-08-30	assorted fixes:	Russ Cox	1	-5/+5
	* rename c/cp to cpu/proc * rename cpu.context to cpu.scheduler * fix some comments * formatting for printout
2008-08-20	formatting updates	rsc	1	-43/+0

2007-08-28	clumsy blank pages to make some files align better	rsc	1	-0/+44

2006-09-07	more comments	rsc	1	-4/+8

2006-08-29	clean up stale error checks and panics	rtm	1	-1/+0
	delete unused functions a few comments
2006-08-10	interrupts could be recursive since lapic_eoi() called before rti	rtm	1	-1/+2
	so fast interrupts overflow the kernel stack fix: cli() before lapic_eoi()
2006-08-08	fix race in holding() check in acquire()	rtm	1	-1/+1
	give cpu1 a TSS and gdt for when it enters scheduler() and a pseudo proc[] entry for each cpu cpu0 waits for each other cpu to start up read() for files
2006-07-29	open()	rtm	1	-0/+1

2006-07-20	uint32_t -> uint &c	rtm	1	-1/+1

2006-07-17	add ide_lock for sleep	rsc	1	-1/+2

2006-07-17	add uint and standardize on typedefs instead of unsigned	rsc	1	-2/+2

2006-07-15	no more recursive locks	rtm	1	-2/+0
	wakeup1() assumes you hold proc_table_lock sleep(chan, lock) provides atomic sleep-and-release to wait for condition ugly code in swtch/scheduler to implement new sleep fix lots of bugs in pipes, wait, and exit fix bugs if timer interrupt goes off in schedule() console locks per line, not per byte
2006-07-12	i think my cmpxchg use was wrong in acquire	rtm	1	-1/+1
	nesting cli/sti: release shouldn't always enable interrupts separate setup of lapic from starting of other cpus, so cpu() works earlier flag to disable locking in console output make locks work even when curproc==0 (still crashes in clock interrupt)
2006-07-12	cvs add spinlock.h	rtm	1	-0/+6
	fix race in schedule()