From 1a30259fcef6886449524084a9dea2f3c85e8fee Mon Sep 17 00:00:00 2001 From: Wolfram Schneider Date: Fri, 13 Apr 2001 21:16:17 +0000 Subject: [PATCH] Added Write-Ahead File System (WAFS) --- en/projects/projects.sgml | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/en/projects/projects.sgml b/en/projects/projects.sgml index b0d3b98bff..06148307e6 100644 --- a/en/projects/projects.sgml +++ b/en/projects/projects.sgml @@ -1,6 +1,6 @@ - + %includes; ]> @@ -314,6 +314,15 @@ directories, inodes, and data. This is not at all like mfs, since mfs uses memory for "disk blocks", and essentially acts as the device for UFS. V9FS in contrast is a first-class citizen and is a full mountable file system. No writeup yet. + +
  • +WAFS is a simple file system designed to act as a logging +service for kernel subsystems. Reads and writes are keyed +by log-sequence number (LSN). All writes to WAFS are +sequential. Kernel subsystems can use this LSN service to +enforce write-ahead logging and guarantee consistency. +
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