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authorLinus Torvalds <torvalds@linux-foundation.org>2018-02-08 12:12:04 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-08 12:12:04 -0800
commit81153336eb76b253ba7852f3f1de525bb98f8c4d (patch)
tree635fe0495b762841eb72e5ee40d9d88563674691 /Documentation
parentef9417e8a903d3a68a83ea2da32f1db030341c37 (diff)
parent4d673da14533b32fe8d3125b5b7be4fea14e39a8 (diff)
downloadlinux-81153336eb76b253ba7852f3f1de525bb98f8c4d.tar.bz2
Merge tag 'afs-next-20180208' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull afs updates from David Howells: "Four fixes: - add a missing put - two fixes to reset the address iteration cursor correctly - fix setting up the fileserver iteration cursor. Two cleanups: - remove some dead code - rearrange a function to be more logically laid out And one new feature: - Support AFS dynamic root. With this one should be able to do, say: mkdir /afs mount -t afs none /afs -o dyn to create a dynamic root and then, provided you have keyutils installed, do: ls /afs/grand.central.org and: ls /afs/umich.edu to list the root volumes of both those organisations' AFS cells without requiring any other setup (the kernel upcall to a program in the keyutils package to do DNS access as does NFS)" * tag 'afs-next-20180208' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: afs: Support the AFS dynamic root afs: Rearrange afs_select_fileserver() a little afs: Remove unused code afs: Fix server list handling afs: Need to clear responded flag in addr cursor afs: Fix missing cursor clearance afs: Add missing afs_put_cell()
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/filesystems/afs.txt17
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/filesystems/afs.txt b/Documentation/filesystems/afs.txt
index ba99b5ac4fd8..c5254f6d234d 100644
--- a/Documentation/filesystems/afs.txt
+++ b/Documentation/filesystems/afs.txt
@@ -7,6 +7,7 @@ Contents:
- Overview.
- Usage.
- Mountpoints.
+ - Dynamic root.
- Proc filesystem.
- The cell database.
- Security.
@@ -127,6 +128,22 @@ mounted on /afs in one go by doing:
umount /afs
+============
+DYNAMIC ROOT
+============
+
+A mount option is available to create a serverless mount that is only usable
+for dynamic lookup. Creating such a mount can be done by, for example:
+
+ mount -t afs none /afs -o dyn
+
+This creates a mount that just has an empty directory at the root. Attempting
+to look up a name in this directory will cause a mountpoint to be created that
+looks up a cell of the same name, for example:
+
+ ls /afs/grand.central.org/
+
+
===============
PROC FILESYSTEM
===============