From 65b713bcf6781e9be9ce9e259d604b2abafdf84d Mon Sep 17 00:00:00 2001
From: pravins <pravins>
Date: Tue, 11 Nov 2008 06:46:22 +0000
Subject: [PATCH] b=16461 i=h.huang i=umka

1.8 compact fld interop patch for compact fld which will be landed to head.
this patch changes lustre client so that it does not send fld update to mds
from client as required for compact fld approach.
---
 lustre/include/lustre/lustre_idl.h | 70 +++++++++++++++++++++-----------------
 1 file changed, 38 insertions(+), 32 deletions(-)

diff --git a/lustre/include/lustre/lustre_idl.h b/lustre/include/lustre/lustre_idl.h
index ddfdfd3..7114156 100644
--- a/lustre/include/lustre/lustre_idl.h
+++ b/lustre/include/lustre/lustre_idl.h
@@ -777,55 +777,67 @@ enum {
 
 typedef __u64 seqno_t;
 
-struct lu_range {
-        __u64 lr_start;
-        __u64 lr_end;
+/**
+ * Describes a range of sequence, lsr_start is included but lsr_end is
+ * not in the range.
+ */
+struct lu_seq_range {
+        __u64 lsr_start;
+        __u64 lsr_end;
+        /** this feild is not used in 1.8 client interop */
+        __u32 lsr_mdt;
+        __u32 lsr_padding;
 };
 
-static inline __u64 range_space(struct lu_range *r)
+/**
+ * returns  width of given range \a r
+ */
+
+static inline __u64 range_space(const struct lu_seq_range *r)
 {
-        return r->lr_end - r->lr_start;
+        return r->lsr_end - r->lsr_start;
 }
 
-static inline void range_zero(struct lu_range *r)
+/**
+ * initialize range to zero
+ */
+static inline void range_init(struct lu_seq_range *r)
 {
-        r->lr_start = r->lr_end = 0;
+        r->lsr_start = r->lsr_end = 0;
 }
 
-static inline int range_within(struct lu_range *r,
+/**
+ * check if given seq id \a s is within given range \a r
+ */
+static inline int range_within(const struct lu_seq_range *r,
                                __u64 s)
 {
-        return s >= r->lr_start && s < r->lr_end;
+        return s >= r->lsr_start && s < r->lsr_end;
 }
 
-static inline void range_alloc(struct lu_range *r,
-                               struct lu_range *s,
-                               __u64 w)
-{
-        r->lr_start = s->lr_start;
-        r->lr_end = s->lr_start + w;
-        s->lr_start += w;
-}
-static inline int range_is_sane(struct lu_range *r)
+/**
+ * sanity check for range \a r
+ */
+static inline int range_is_sane(const struct lu_seq_range *r)
 {
-        return (r->lr_end >= r->lr_start);
+        return (r->lsr_end >= r->lsr_start);
 }
 
-static inline int range_is_zero(struct lu_range *r)
+static inline int range_is_zero(struct lu_seq_range *r)
 {
-        return (r->lr_start == 0 && r->lr_end == 0);
+        return (r->lsr_start == 0 && r->lsr_end == 0);
 }
 
-static inline int range_is_exhausted(struct lu_range *r)
+static inline int range_is_exhausted(const struct lu_seq_range *r)
 {
         return range_space(r) == 0;
 }
 
-#define DRANGE "[%#16.16"LPF64"x-%#16.16"LPF64"x]"
+#define DRANGE "[%#16.16"LPF64"x-%#16.16"LPF64"x)"
 
 #define PRANGE(range)      \
-        (range)->lr_start, \
-        (range)->lr_end
+        (range)->lsr_start, \
+        (range)->lsr_end
 
 enum {
         /*
@@ -849,7 +861,7 @@ struct lu_client_seq {
          * on clients, this contains meta-sequence range. And for servers this
          * contains super-sequence range.
          */
-        struct lu_range         lcs_space;
+        struct lu_seq_range         lcs_space;
 
         /* This holds last allocated fid in last obtained seq */
         struct lu_fid           lcs_fid;
@@ -2097,12 +2109,6 @@ typedef enum {
 #define QUOTA_FIRST_OPC QUOTA_DQACQ
 
 
-enum fld_rpc_opc {
-        FLD_QUERY                       = 600,
-        FLD_LAST_OPC,
-        FLD_FIRST_OPC                   = FLD_QUERY
-};
-
 enum seq_rpc_opc {
         SEQ_QUERY                       = 700,
         SEQ_LAST_OPC,
-- 
1.8.3.1