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authorAndrew Elble <aweits@rit.edu>2016-06-15 19:52:07 +0300
committerJ. Bruce Fields <bfields@redhat.com>2016-07-13 22:32:47 +0300
commit1adf0c5a4451a100cd9253c1d6e3ca77f4a5a98b (patch)
tree36590ef94abcc635741eaafcad5a49ef33ca4a56 /include/linux/nfs4.h
parentd8d29138b17c9965484427b34cf8046601aef8c4 (diff)
downloadlinux-1adf0c5a4451a100cd9253c1d6e3ca77f4a5a98b.tar.xz
nfs/nfsd: Move useful bitfield ops to a commonly accessible place
So these may be used in nfsd as well Signed-off-by: Andrew Elble <aweits@rit.edu> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'include/linux/nfs4.h')
-rw-r--r--include/linux/nfs4.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index bfed6b367350..c6564ada9beb 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -643,4 +643,15 @@ enum pnfs_update_layout_reason {
PNFS_UPDATE_LAYOUT_SEND_LAYOUTGET,
};
+#define NFS4_OP_MAP_NUM_LONGS \
+ DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
+#define NFS4_OP_MAP_NUM_WORDS \
+ (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
+struct nfs4_op_map {
+ union {
+ unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
+ u32 words[NFS4_OP_MAP_NUM_WORDS];
+ } u;
+};
+
#endif