[PATCH] Add AFS_SUPER_MAGIC to magic.h

Jeffrey Altman, one of the gatekeepers of OpenAFS (the open source project
which inherited the Transarc/IBM AFS codebase) has requested that the magic
number 0x5346414F (little endian 'OAFS') be allocated for the f_type field
of the fsinfo structure on Linux:

  https://lists.openafs.org/pipermail/openafs-info/2006-December/024829.html

Add it to include/linux/magic.h, mostly as a way of publishing this number
and ensuring that no other filesystem accidentally uses it.

Cc: Jeffrey Altman <jaltman@secure-endpoints.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/include/linux/magic.h b/include/linux/magic.h
index 156c40fc664e26420f07cd6985efbc8dfa62113c..b78bbf42135ac4287e8be81efee7ce3ebcddb3a7 100644 (file)
--- a/include/linux/magic.h
+++ b/include/linux/magic.h
@@ -3,6 +3,7 @@
 
 #define ADFS_SUPER_MAGIC       0xadf5
 #define AFFS_SUPER_MAGIC       0xadff
+#define AFS_SUPER_MAGIC                0x5346414F
 #define AUTOFS_SUPER_MAGIC     0x0187
 #define CODA_SUPER_MAGIC       0x73757245
 #define EFS_SUPER_MAGIC                0x414A53