AFS: implement file locking

Implement file locking for AFS.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/afs/afs_fs.h b/fs/afs/afs_fs.h
index a18c374ebe08..eb647323d8f0 100644
--- a/fs/afs/afs_fs.h
+++ b/fs/afs/afs_fs.h
@@ -31,6 +31,9 @@ enum AFS_FS_Operations {
         FSGETVOLUMEINFO         = 148,  /* AFS Get information about a volume */
         FSGETVOLUMESTATUS       = 149,  /* AFS Get volume status information */
         FSGETROOTVOLUME         = 151,  /* AFS Get root volume name */
+        FSSETLOCK               = 156,  /* AFS Request a file lock */
+        FSEXTENDLOCK            = 157,  /* AFS Extend a file lock */
+        FSRELEASELOCK           = 158,  /* AFS Release a file lock */
         FSLOOKUP                = 161,  /* AFS lookup file in directory */
         FSFETCHDATA64           = 65537, /* AFS Fetch file data */
         FSSTOREDATA64           = 65538, /* AFS Store file data */