Plan 9 from Bell Labs’s /n/sources/patch/applied/cwfs-seek-race/readme

Copyright © 2009 Alcatel-Lucent.
Distributed under the Lucent Public License version 1.02.
Download the Plan 9 distribution.


the wren device uses seek before performing read/write operation. as multiple
threads could issue read/write in paralel, a race can happen. it may even cause
filesystem corruption. removing the seek and replacing read/write with
pread/pwrite also saves a syscall.

Bell Labs OSI certified Powered by Plan 9

(Return to Plan 9 Home Page)

Copyright © 2009 Alcatel-Lucent. All Rights Reserved.
Comments to webmaster@plan9.bell-labs.com.