[PATCH] docs/filesystems/9p: fix broken external links

[PATCH] docs/filesystems/9p: fix broken external links

[Aayush Patil]

The xcpu.org links for xcpu-talk, kvmfs, and cellfs-talk are dead
with no archived snapshots available on the Wayback Machine, so
remove them. The PROSE I/O link redirects to a dead server; replace
it with an archived version from web.archive.org.S

Signed-off-by: Aayush Patil <aayushpatilsch@gmail.com>
---
 Documentation/filesystems/9p.rst | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/Documentation/filesystems/9p.rst b/Documentation/filesystems/9p.rst
index be3504ca034a..65809a1dad21 100644
--- a/Documentation/filesystems/9p.rst
+++ b/Documentation/filesystems/9p.rst
@@ -23,13 +23,10 @@ the 9p client is available in the form of a USENIX paper:
 Other applications are described in the following papers:
 
 	* XCPU & Clustering
-	  http://xcpu.org/papers/xcpu-talk.pdf
 	* KVMFS: control file system for KVM
-	  http://xcpu.org/papers/kvmfs.pdf
 	* CellFS: A New Programming Model for the Cell BE
-	  http://xcpu.org/papers/cellfs-talk.pdf
 	* PROSE I/O: Using 9p to enable Application Partitions
-	  http://plan9.escet.urjc.es/iwp9/cready/PROSE_iwp9_2006.pdf
+	  http://web.archive.org/web/20110101152020/http://plan9.escet.urjc.es/iwp9/cready/PROSE_iwp9_2006.pdf
 	* VirtFS: A Virtualization Aware File System pass-through
 	  https://kernel.org/doc/ols/2010/ols2010-pages-109-120.pdf
 
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