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-rw-r--r-- | doc/filesystem/fsrequirements.t | 34 |
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diff --git a/doc/filesystem/fsrequirements.t b/doc/filesystem/fsrequirements.t new file mode 100644 index 0000000000..32e06e627a --- /dev/null +++ b/doc/filesystem/fsrequirements.t @@ -0,0 +1,34 @@ +@c +@c COPYRIGHT (c) 1988-1998. +@c On-Line Applications Research Corporation (OAR). +@c All rights reserved. +@c +@c $Id$ +@c + + +@chapter Filesystem Requirements + +This chapter details the behavioral requirements that all filesystem +implementations must adhere to. + +@section Filesystem File and Directory Removal Constraints + +The following POSIX constraints must be honored by all filesystems. + +@itemize @bullet + +@item If a node is a directory with children it cannot be removed. + +@item The root node of any filesystem, whether the base filesystem or a +mounted filesystem, cannot be removed. + +@item A node that is a directory that is acting as the mount point of a file +system cannot be removed. + +@item On filesystems supporting hard links, a link count is maintained. +Prior to node removal, the node's link count is decremented by one. The +link count must be less than one to allow for removal of the node. + +@end itemize + |