Editing Tmpfs (section)

=== Linux ===
tmpfs is supported by the [[Linux kernel]] beginning in version 2.4 (January 4, 2001).<ref>{{cite web |author=Daniel Robbins |author-link=Daniel Robbins (computer programmer) |date=2001-09-01 |title=Common threads: Advanced filesystem implementor's guide, Part 3 |url=http://www.ibm.com/developerworks/library/l-fs3/index.html |archive-url=https://web.archive.org/web/20120203112045/http://www.ibm.com/developerworks/library/l-fs3/index.html |archive-date=2012-02-03 |access-date=2013-02-15 |publisher=IBM DeveloperWorks}}</ref> Linux tmpfs (previously known as '''shm fs''')<ref name=":6">{{cite web |author=Daniel Robbins |author-link=Daniel Robbins (computer programmer) |date=2001-09-01 |title=Common threads: Advanced filesystem implementor's guide, Part 3 |url=http://www.ibm.com/developerworks/library/l-fs3/index.html |archive-url=https://web.archive.org/web/20120203112045/http://www.ibm.com/developerworks/library/l-fs3/index.html |archive-date=2012-02-03 |access-date=2013-02-15 |publisher=IBM DeveloperWorks}}</ref> is based on the ramfs code used during bootup and also uses the [[page cache]], but, unlike ramfs, it supports swapping out less-used pages to swap space, as well as filesystem size and inode limits to prevent [[out of memory|out-of-memory]] situations (defaulting to half of physical RAM and half the number of RAM pages, respectively).<ref>{{cite web
| url=https://www.kernel.org/doc/Documentation/filesystems/tmpfs.txt
| title=tmpfs.txt
|author1=Christoph Rohland |author2=Hugh Dickins |author3=KOSAKI Motohiro | access-date=2010-03-16
| publisher=[[kernel.org]]
}}</ref>