From patchwork Mon Dec 21 09:19:38 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: doc: add information about nounix mount option (try#2) Date: Sun, 20 Dec 2009 23:19:38 -0000 From: Suresh Jayaraman X-Patchwork-Id: 41539 Message-Id: <1261387178-8348-1-git-send-email-sjayaraman@suse.de> To: Steve French Cc: linux-cifs-client@lists.samba.org, Jeff Layton Also add a section on INODE NUMBERS that discusses inode numbers more thoroughly and add reference to it in "nounix" and "noserverino" options. Signed-off-by: Suresh Jayaraman --- docs-xml/manpages-3/mount.cifs.8.xml | 47 ++++++++++++++++++++++++++++++++- 1 files changed, 45 insertions(+), 2 deletions(-) diff --git a/docs-xml/manpages-3/mount.cifs.8.xml b/docs-xml/manpages-3/mount.cifs.8.xml index 372b477..cf9b6a5 100644 --- a/docs-xml/manpages-3/mount.cifs.8.xml +++ b/docs-xml/manpages-3/mount.cifs.8.xml @@ -477,12 +477,36 @@ permissions in memory that can't be stored on the server. This information can d noserverino - client generates inode numbers (rather than using the actual one - from the server) by default. + + + Client generates inode numbers (rather than + using the actual one from the server) by default. + + + See section INODE NUMBERS for + more information. + + nounix + + + Disable the CIFS Unix Extensions for this mount. This + can be useful in order to turn off multiple settings at once. + This includes POSIX acls, POSIX locks, POSIX paths, symlink + support and retrieving uids/gids/mode from the server. This + can also be useful to work around a bug in a server that + supports Unix Extensions. + + + See section INODE NUMBERS for + more information. + + + + nouser_xattr (default) Do not allow getfattr/setfattr to get/set xattrs, even if server would support it otherwise. @@ -533,6 +557,25 @@ permissions in memory that can't be stored on the server. This information can d + INODE NUMBERS + + When Unix Extensions are enabled, we use the actual inode + number provided by the server in response to the POSIX calls as an + inode number. + + + When Unix Extensions are disabled and "serverino" mount option + is enabled there is no way to get the server inode number. So a + "UniqueID" from the server is used, instead. A UniqueID is different + from a inode number and it is unique over the scope of the entire + server. It is often greater than 2 power 32. To avoid using this huge + UniqueID's make sure you build your programs with LFS support. You can + also use "noserverino" mount option to overcome this, but you may not + be able to detect hardlinks properly. + + + + FILE AND DIRECTORY OWNERSHIP AND PERMISSIONS The core CIFS protocol does not provide unix ownership