Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...

[firefly-linux-kernel-4.4.55.git] / include / linux / nfs4.h

diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index b8e72aad919cfc72ea6710ac3786dc35bbe47201..00121f298269590cabc12ce7924f61d8e8742e07 100644 (file)
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -547,6 +547,24 @@ enum pnfs_notify_deviceid_type4 {
        NOTIFY_DEVICEID4_DELETE = 1 << 2,
 };
 
+enum pnfs_block_volume_type {
+       PNFS_BLOCK_VOLUME_SIMPLE        = 0,
+       PNFS_BLOCK_VOLUME_SLICE         = 1,
+       PNFS_BLOCK_VOLUME_CONCAT        = 2,
+       PNFS_BLOCK_VOLUME_STRIPE        = 3,
+};
+
+enum pnfs_block_extent_state {
+       PNFS_BLOCK_READWRITE_DATA       = 0,
+       PNFS_BLOCK_READ_DATA            = 1,
+       PNFS_BLOCK_INVALID_DATA         = 2,
+       PNFS_BLOCK_NONE_DATA            = 3,
+};
+
+/* on the wire size of a block layout extent */
+#define PNFS_BLOCK_EXTENT_SIZE \
+       (7 * sizeof(__be32) + NFS4_DEVICEID4_SIZE)
+
 #define NFL4_UFLG_MASK                 0x0000003F
 #define NFL4_UFLG_DENSE                        0x00000001
 #define NFL4_UFLG_COMMIT_THRU_MDS      0x00000002