AFS: write support fixes

AFS write support fixes:

 (1) Support large files using the 64-bit file access operations if available
     on the server.

 (2) Use kmap_atomic() rather than kmap() in afs_prepare_page().

 (3) Don't do stuff in afs_writepage() that's done by the caller.

[akpm@linux-foundation.org: fix right shift count >= width of type]
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, 2 insertions, 0 deletions

diff --git a/fs/afs/afs_fs.h b/fs/afs/afs_fs.h
index 2198006d2d03..d963ef4daee8 100644
--- a/fs/afs/afs_fs.h
+++ b/fs/afs/afs_fs.h
@@ -31,6 +31,8 @@ enum AFS_FS_Operations {
         FSGETVOLUMEINFO         = 148,  /* AFS Get root volume information */
         FSGETROOTVOLUME         = 151,  /* AFS Get root volume name */
         FSLOOKUP                = 161,  /* AFS lookup file in directory */
+        FSFETCHDATA64           = 65537, /* AFS Fetch file data */
+        FSSTOREDATA64           = 65538, /* AFS Store file data */
 };
 
 enum AFS_FS_Errors {