Messages in this thread |  | | From | (Alan Cox) | Subject | Re: Union file system | Date | Wed, 27 Nov 1996 23:15:28 +0000 (GMT) |
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> For any interested folks, there is a comprehensive discussion of Union > file systems in the book "Unix Internals" by Uresh Vahalia > (Prentice-Hall, 1996. ISBN 0-13-101908-2). This book is well worth > owning as a reference for some of the deeper technical topics that pop
A union FS btw is _horrible_ to do well. Consider a process with an mmap of a union FS object that is replaced by a file elsewhere and keeping the mmap coherency correct. Now truncate the file at the same instant and enjoy
Alan
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