commit 624bd5b7b683c978c6d5f4e9f6142cfb3470983d
author Anna Schumaker <Anna.Schumaker@netapp.com> Tue Nov 25 13:18:16 2014 -0500
committer Trond Myklebust <trond.myklebust@primarydata.com> Tue Nov 25 16:38:32 2014 -0500
tree dcbe9728ea9a6ef12b57c63aec6b34b872a42542
parent f4ac1674f5da420ef17896f0f222c5215ebcde80

nfs: Add DEALLOCATE support

This patch adds support for using the NFS v4.2 operation DEALLOCATE to
punch holes in a file.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

include/linux/nfs_fs_sb.h

diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index df6ed42..1e37fbb 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -232,5 +232,6 @@
 #define NFS_CAP_SECURITY_LABEL	(1U << 18)
 #define NFS_CAP_SEEK		(1U << 19)
 #define NFS_CAP_ALLOCATE	(1U << 20)
+#define NFS_CAP_DEALLOCATE	(1U << 21)
 
 #endif