Date: Sat, 18 Sep 2010 19:23:14 +0000 (UTC) From: Glen Barber <gjb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r212827 - head/share/man/man5 Message-ID: <201009181923.o8IJNE3E075401@svn.freebsd.org>
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Author: gjb (doc committer) Date: Sat Sep 18 19:23:14 2010 New Revision: 212827 URL: http://svn.freebsd.org/changeset/base/212827 Log: Note that devfs(5) and fdescfs(5) both create /dev/fd file descriptors. PR: 144534 Submitted by: Matthew Seaman <m.seaman at infracaninophile co uk> Patch by: Matthew Seaman, keramida Approved by: keramida (mentor) MFC after: 1 week Modified: head/share/man/man5/devfs.5 head/share/man/man5/fdescfs.5 Modified: head/share/man/man5/devfs.5 ============================================================================== --- head/share/man/man5/devfs.5 Sat Sep 18 18:37:41 2010 (r212826) +++ head/share/man/man5/devfs.5 Sat Sep 18 19:23:14 2010 (r212827) @@ -38,7 +38,7 @@ .\" .\" $FreeBSD$ .\" -.Dd May 30, 2010 +.Dd September 18, 2010 .Dt DEVFS 5 .Os .Sh NAME @@ -69,6 +69,27 @@ The .Xr mknod 8 tool can be used to recover deleted device entries under .Nm . +.Pp +The +.Xr fdescfs 5 +filesystem is an alternate means for populating +.Pa /dev/fd . +The character devices that both +.Nm +and +.Xr fdescfs 5 +present in +.Pa /dev/fd +correspond to the open file descriptors of the process +accessing the directory. +.Nm +only creates files for the standard file descriptors +.Pa 0 , +.Pa 1 +and +.Pa 2 . +.Xr fdescfs 5 +creates files for all open descriptors. .Sh FILES .Bl -tag -width /dev/XXXX -compact .It Pa /dev @@ -85,6 +106,7 @@ volume located on .Dl "mount -t devfs devfs /mychroot/dev" .Sh SEE ALSO .Xr devfs 8 , +.Xr fdescfs 5 , .Xr mount 8 .Sh HISTORY The Modified: head/share/man/man5/fdescfs.5 ============================================================================== --- head/share/man/man5/fdescfs.5 Sat Sep 18 18:37:41 2010 (r212826) +++ head/share/man/man5/fdescfs.5 Sat Sep 18 19:23:14 2010 (r212827) @@ -38,7 +38,7 @@ .\" .\" $FreeBSD$ .\" -.Dd December 14, 1996 +.Dd September 18, 2010 .Dt FDESCFS 5 .Os .Sh NAME @@ -87,6 +87,15 @@ call other than and .Dv O_RDWR are ignored. +.Pp +.Em "Note:" +.Pa /dev/fd/0 , +.Pa /dev/fd/1 +and +.Pa /dev/fd/2 +files are created by default when devfs alone is mounted. +.Nm +creates entries for all file descriptors opened by the process. .Sh FILES .Bl -tag -width /dev/stderr -compact .It Pa /dev/fd/# @@ -99,6 +108,7 @@ volume located on .Pp .Dl "mount -t fdescfs null /dev/fd" .Sh SEE ALSO +.Xr devfs 5 , .Xr mount 8 .Sh HISTORY The
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