NFSv4.1 mdsthreshold attribute xdr
We only support one layout type per file system, so one threshold_item4 per
mdsthreshold4.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 0987146..72b6bad 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -526,6 +526,13 @@
#define FATTR4_WORD1_MOUNTED_ON_FILEID (1UL << 23)
#define FATTR4_WORD1_FS_LAYOUT_TYPES (1UL << 30)
#define FATTR4_WORD2_LAYOUT_BLKSIZE (1UL << 1)
+#define FATTR4_WORD2_MDSTHRESHOLD (1UL << 4)
+
+/* MDS threshold bitmap bits */
+#define THRESHOLD_RD (1UL << 0)
+#define THRESHOLD_WR (1UL << 1)
+#define THRESHOLD_RD_IO (1UL << 2)
+#define THRESHOLD_WR_IO (1UL << 3)
#define NFSPROC4_NULL 0
#define NFSPROC4_COMPOUND 1
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 0872f32..201c312 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -35,6 +35,15 @@
return a->major == b->major && a->minor == b->minor;
}
+struct nfs4_threshold {
+ __u32 bm;
+ __u32 l_type;
+ __u64 rd_sz;
+ __u64 wr_sz;
+ __u64 rd_io_sz;
+ __u64 wr_io_sz;
+};
+
struct nfs_fattr {
unsigned int valid; /* which fields are valid */
umode_t mode;
@@ -67,6 +76,7 @@
unsigned long gencount;
struct nfs4_string *owner_name;
struct nfs4_string *group_name;
+ struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
};
#define NFS_ATTR_FATTR_TYPE (1U << 0)