LU-2901 mdt: duplicate link names in directory

[fs/lustre-release.git] / lustre / include / lustre / lustre_idl.h

diff --git a/lustre/include/lustre/lustre_idl.h b/lustre/include/lustre/lustre_idl.h
index efcca73..f2900b4 100644 (file)
--- a/lustre/include/lustre/lustre_idl.h
+++ b/lustre/include/lustre/lustre_idl.h
@@ -98,6 +98,8 @@
 /* Defn's shared with user-space. */
 #include <lustre/lustre_user.h>
 
+#include <lustre/lustre_errno.h>
+
 /*
  *  GENERAL STUFF
  */
@@ -911,7 +913,7 @@ static inline int lu_fid_cmp(const struct lu_fid *f0,
                 __diff_normalize(fid_ver(f0), fid_ver(f1));
 }
 
-static inline void ostid_cpu_to_le(struct ost_id *src_oi,
+static inline void ostid_cpu_to_le(const struct ost_id *src_oi,
                                   struct ost_id *dst_oi)
 {
        if (fid_seq_is_mdt0(ostid_seq(src_oi))) {
@@ -922,7 +924,7 @@ static inline void ostid_cpu_to_le(struct ost_id *src_oi,
        }
 }
 
-static inline void ostid_le_to_cpu(struct ost_id *src_oi,
+static inline void ostid_le_to_cpu(const struct ost_id *src_oi,
                                   struct ost_id *dst_oi)
 {
        if (fid_seq_is_mdt0(ostid_seq(src_oi))) {
@@ -1548,10 +1550,16 @@ enum obdo_flags {
 #define LOV_MAGIC_V1_DEF  0x0CD10BD0
 #define LOV_MAGIC_V3_DEF  0x0CD30BD0
 
-#define LOV_PATTERN_RAID0 0x001   /* stripes are used round-robin */
-#define LOV_PATTERN_RAID1 0x002   /* stripes are mirrors of each other */
-#define LOV_PATTERN_FIRST 0x100   /* first stripe is not in round-robin */
-#define LOV_PATTERN_CMOBD 0x200
+#define LOV_PATTERN_RAID0      0x001   /* stripes are used round-robin */
+#define LOV_PATTERN_RAID1      0x002   /* stripes are mirrors of each other */
+#define LOV_PATTERN_FIRST      0x100   /* first stripe is not in round-robin */
+#define LOV_PATTERN_CMOBD      0x200
+
+#define LOV_PATTERN_F_MASK     0xffff0000
+#define LOV_PATTERN_F_RELEASED 0x80000000 /* HSM released file */
+
+#define lov_pattern(pattern)           (pattern & ~LOV_PATTERN_F_MASK)
+#define lov_pattern_flags(pattern)     (pattern & LOV_PATTERN_F_MASK)
 
 #define lov_ost_data lov_ost_data_v1
 struct lov_ost_data_v1 {          /* per-stripe data structure (little-endian)*/
@@ -1666,6 +1674,17 @@ struct lov_mds_md_v3 {            /* LOV EA mds/wire data (little-endian) */
        struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
 };
 
+static inline __u32 lov_mds_md_size(__u16 stripes, __u32 lmm_magic)
+{
+       if (lmm_magic == LOV_MAGIC_V3)
+               return sizeof(struct lov_mds_md_v3) +
+                               stripes * sizeof(struct lov_ost_data_v1);
+       else
+               return sizeof(struct lov_mds_md_v1) +
+                               stripes * sizeof(struct lov_ost_data_v1);
+}
+
+
 #define OBD_MD_FLID        (0x00000001ULL) /* object ID */
 #define OBD_MD_FLATIME     (0x00000002ULL) /* access time */
 #define OBD_MD_FLMTIME     (0x00000004ULL) /* data modification time */
@@ -2677,6 +2696,10 @@ struct ldlm_res_id {
         __u64 name[RES_NAME_SIZE];
 };
 
+#define DLDLMRES       "["LPX64":"LPX64":"LPX64"]."LPX64i
+#define PLDLMRES(res)  (res)->lr_name.name[0], (res)->lr_name.name[1], \
+                       (res)->lr_name.name[2], (res)->lr_name.name[3]
+
 extern void lustre_swab_ldlm_res_id (struct ldlm_res_id *id);
 
 static inline int ldlm_res_eq(const struct ldlm_res_id *res0,
@@ -3222,13 +3245,25 @@ struct obdo {
 #define o_cksum   o_nlink
 #define o_grant_used o_data_version
 
-static inline void lustre_set_wire_obdo(struct obdo *wobdo, struct obdo *lobdo)
+static inline void lustre_set_wire_obdo(struct obd_connect_data *ocd,
+                                       struct obdo *wobdo, struct obdo *lobdo)
 {
         memcpy(wobdo, lobdo, sizeof(*lobdo));
-        wobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
+       wobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
+       if (ocd == NULL)
+               return;
+
+       if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
+           fid_seq_is_echo(ostid_seq(&lobdo->o_oi))) {
+               /* Currently OBD_FL_OSTID will only be used when 2.4 echo
+                * client communicate with pre-2.4 server */
+               wobdo->o_oi.oi.oi_id = fid_oid(&lobdo->o_oi.oi_fid);
+               wobdo->o_oi.oi.oi_seq = fid_seq(&lobdo->o_oi.oi_fid);
+       }
 }
 
-static inline void lustre_get_wire_obdo(struct obdo *lobdo, struct obdo *wobdo)
+static inline void lustre_get_wire_obdo(struct obd_connect_data *ocd,
+                                       struct obdo *lobdo, struct obdo *wobdo)
 {
         obd_flag local_flags = 0;
 
@@ -3237,12 +3272,22 @@ static inline void lustre_get_wire_obdo(struct obdo *lobdo, struct obdo *wobdo)
 
         LASSERT(!(wobdo->o_flags & OBD_FL_LOCAL_MASK));
 
-        memcpy(lobdo, wobdo, sizeof(*lobdo));
-        if (local_flags != 0) {
-                 lobdo->o_valid |= OBD_MD_FLFLAGS;
-                 lobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
-                 lobdo->o_flags |= local_flags;
-        }
+       memcpy(lobdo, wobdo, sizeof(*lobdo));
+       if (local_flags != 0) {
+               lobdo->o_valid |= OBD_MD_FLFLAGS;
+               lobdo->o_flags &= ~OBD_FL_LOCAL_MASK;
+               lobdo->o_flags |= local_flags;
+       }
+       if (ocd == NULL)
+               return;
+
+       if (unlikely(!(ocd->ocd_connect_flags & OBD_CONNECT_FID)) &&
+           fid_seq_is_echo(wobdo->o_oi.oi.oi_seq)) {
+               /* see above */
+               lobdo->o_oi.oi_fid.f_seq = wobdo->o_oi.oi.oi_seq;
+               lobdo->o_oi.oi_fid.f_oid = wobdo->o_oi.oi.oi_id;
+               lobdo->o_oi.oi_fid.f_ver = 0;
+       }
 }
 
 extern void lustre_swab_obdo (struct obdo *o);