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文章是去年中旬lwn发表的，算是入门btrfs的小文。（ http://lwn.net/Articles/342892/ ）对于有过fs开发经验的童鞋來說，，看懂這篇文章并不難。尤其是看到作者深入讲述了btrfs的诸多优点后，脑海里的文件系统的数据布局比较，很容易理解他的优势。 比如inode，file，directory-entry，BITMAP等等，BTRFS完全用BTREE来组织，节省了查找的时间。先简单看下面两张图： Btrfs, instead, creates a disk layout which looks more l...
by wangxingchao201 - 存储文档中心 - 2010-01-23 12:00:09 阅读（2240） 回复（0）
libata is a library used inside the Linux kernel to support ATA host controllers and devices, libata provides an ATA driver API, class transports for ATA and ATAPI devices, and SCSIATA translation for ATA devices according to the T10 SAT specification. Devices use libata will be attached to the SCSI layer, and present itself as a SCSI device to the kernel. libata is developed by Jeff Garzik,...
切换到第一个文本终端。在Linux下你可以有多达六个不同的终端。这个命令的意思是：“同时按住 键和 键，然后按 键，再释放所有的键”。 (n=1..6) 切换到第一个图形用户界面（一般来说X-window在第七个终端） （在X窗口，KDE下）关闭我鼠标将要指向的窗口（...
一个Python小教程： Python short Course Lecture 1: Python Overview Richard P. Muller Materials and Process Simulation Center Spring 2000 本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u1/43271/showart_1833832.html
Russ Allbery Last modified April 8, 2001 (revision 1.2) To obtain a local checked out copy of a portion of the repository, use: cvs checkout or cvs co To change the directory CVS creates for those files, use the -d option after "checkout" or "co". CVS will need to know the path to the repository, so make sure the environment variable CVSROOT is set (generally to /afs/ir/dev/cvs). ...
BACK:Let's work through one more example in detail: If we have an offset byte of AAh, that would be 10101010 in Binary. So, it's 1's complement would be: 01010101 or 55h. Therefore, we'd have a 2's complement of: -56h (-86). But how do we translate that into a real backwards jump? Well, assuming that the address of our short JMP code is 0696h, we must first add 2 to get to the address of the inst...
