sanchayanmaity
/
xv6-cs450
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
851 Commits 3 Branches 0 Tags 12 MiB
Commit Graph

24 Commits

Author SHA1 Message Date
Robert Morris 12abb1a561 don't let dirty blocks be evicted from cache! 2011-10-14 10:23:23 -04:00
Austin Clements e76dab4fd7 Put filewrite in its own column 2011-09-02 15:35:34 -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
Austin Clements a7061b4f97 Style nits; indentation and tabs 2011-08-29 16:12:01 -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
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 40889627ba Initial version of single-cpu xv6 with page tables 2010-07-02 14:51:53 -04:00
Frans Kaashoek 7d7465a858 8ae0 instead of 8e00, thanks yandong 2009-12-01 14:07:12 -05:00
Russ Cox 0aef891495 shuffle and tweak for formatting. 
pdf has very good page breaks now.
would be a good copy for fall 2009.
 2009-08-08 01:07:30 -07:00
rsc 34295f461a group locks into structs they protect. 
few naming nits.
 2009-05-31 05:12:21 +00:00
rsc 7f399ccaa4 use ftable like btable and itable 2009-05-31 02:07:26 +00:00
rsc 7834cca604 remove _ from pipe; be like file 2007-08-28 04:22:35 +00:00
rsc 558ab49f13 delete unnecessary #include lines 2007-08-27 23:26:33 +00:00
rsc 13491bf367 formatting shuffle 2007-08-27 14:37:13 +00:00
rsc 1ccff18b24 fileincref -> filedup (consistent with idup) 2007-08-27 14:35:09 +00:00
rsc 07090dd705 Remove struct uinode. 
Remove type arg to mknod (assume T_DEV).
 2007-08-24 20:54:23 +00:00
rsc eaea18cb9c PDF at http://am.lcs.mit.edu/~rsc/xv6.pdf 
Various changes made while offline.

 + bwrite sector argument is redundant; use b->sector.
 + reformatting of files for nicer PDF page breaks
 + distinguish between locked, unlocked inodes in type signatures
 + change FD_FILE to FD_INODE
 + move userinit (nee proc0init) to proc.c
 + move ROOTDEV to param.h
 + always parenthesize sizeof argument
 2007-08-22 06:01:32 +00:00
rsc 2186f88c21 formatting, cleanup 2007-08-14 19:41:56 +00:00
rsc 2cbb4b1842 stop using fd to name files 2006-09-08 13:44:42 +00:00
rsc bb207a1d42 comments 2006-09-07 14:28:12 +00:00
rsc 224f6598c1 refactor syscall code 2006-09-07 14:13:26 +00:00
rsc 50e514be98 fd_* => file_* 2006-09-06 18:43:45 +00:00
rsc 9936bffa45 fd.* -> file.* 2006-09-06 18:40:28 +00:00
Renamed from fd.c (Browse further)