7 commits

Author	SHA1	Message	Date
Frans Kaashoek	e25b74ca80	Fix layout issues for printed version	2011-09-01 10:25:20 -04:00
Frans Kaashoek	1ddfbbb194	Revert "Introduce and use sleeplocks instead of BUSY flags" ... 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 3a5fa7ed90. Conflicts: defs.h file.c file.h	2011-08-29 17:18:40 -04:00
Frans Kaashoek	3a5fa7ed90	Introduce and use sleeplocks instead of BUSY flags ... 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)	2011-08-26 10:08:29 -04:00
Austin Clements	843eecfcd0	Only commit log to disk if something was written in to it. ... Without this, every write to the console results in log writes.	2011-08-15 14:12:35 -04:00
Robert Morris	5053dd6a6d	avoid deadlock by calling begin_trans() before locking any inodes	2011-08-15 12:44:20 -04:00
Robert Morris	2e59046362	log write() data ... usertest for big write()s push begin_trans/commit_trans down into syscalls	2011-08-12 09:25:39 -04:00
Frans Kaashoek	13a96baefc	Dirt simple logging ... Passes usertests and stressfs Seems to recover correctly in a number of simple cases	2011-07-27 20:35:46 -04:00