From a6844c659acd25e913b1d20e48610765352bd10e Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Tue, 21 Feb 2017 13:20:29 +0100 Subject: Drop xattr project idea, it's done --- community/gsoc/project_ideas.mdwn | 1 - community/gsoc/project_ideas/xattr.mdwn | 47 --------------------------------- 2 files changed, 48 deletions(-) delete mode 100644 community/gsoc/project_ideas/xattr.mdwn diff --git a/community/gsoc/project_ideas.mdwn b/community/gsoc/project_ideas.mdwn index 4993b01f..c17b06f9 100644 --- a/community/gsoc/project_ideas.mdwn +++ b/community/gsoc/project_ideas.mdwn @@ -100,7 +100,6 @@ project_ideas: "community/gsoc/project_ideas/virtualization community/gsoc/project_ideas/secure_chroot community/gsoc/project_ideas/package_manager - community/gsoc/project_ideas/xattr community/gsoc/project_ideas/driver_glue_code community/gsoc/project_ideas/language_bindings community/gsoc/project_ideas/file_locking diff --git a/community/gsoc/project_ideas/xattr.mdwn b/community/gsoc/project_ideas/xattr.mdwn deleted file mode 100644 index 8e1a532b..00000000 --- a/community/gsoc/project_ideas/xattr.mdwn +++ /dev/null @@ -1,47 +0,0 @@ -[[!meta copyright="Copyright © 2009, 2016 Free Software Foundation, Inc."]] - -[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable -id="license" text="Permission is granted to copy, distribute and/or modify this -document under the terms of the GNU Free Documentation License, Version 1.2 or -any later version published by the Free Software Foundation; with no Invariant -Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license -is included in the section entitled -[[GNU Free Documentation License|/fdl]]."]]"""]] - -[[!meta title="Implement xattr Support"]] - -Extended attributes (xattr) are a standardized, generic method for storing -additional metadata along with a file (inode). Most modern UNIX filesystems -support xattrs. - -In general, xattrs should be used sparingly, as they are less transparent than -data stored as explicit file contents; however, there are some cases where they -really make sense. The Hurd's variant of ext2 presently uses some additional -fields in the inode to store Hurd-specific metadata: most notable passive -translator settings. As these fields are Hurd-specific, they can't be accessed -by the standard methods from Linux for example, so it's not possible to fully -work with a Hurd filesystem on GNU/Linux (copy, backup etc.); and also, even -when on Hurd, only tools that explicitly support the Hurd-specific information -can handle them. - -Using extended attributes instead of custom fields for the Hurd-specific -information would be very helpful. - -The most important goal of this project thus is to make the Hurd ext2fs server -able to store and read the Hurd-specific information with extended attributes -instead of the custom fields, so it become accessible from other systems. Being -able to access the information through the standard xattr API instead of -Hurd-specific calls is also desirable. (And in turn requires implementing the -generic xattr API first, which can be useful for other purposes as well.) - -Completing this project will require digging into some parts of the Hurd, but -it should be quite doable without previous Hurd experience. Some experience -with xattrs might help a bit, but shouldn't be really necessary either. - -Some previous work on xattr support is [[available|open_issues/xattr]], and -might serve as a starting point. - -Possible mentors: Justus Winter (teythoon), Samuel Thibault (youpi) - -Exercise: Implement support for different inode sizes (other than 128 bytes) in -Hurd's ext2fs. -- cgit v1.2.3