LU-12624 lod: alloc dir stripes by QoS

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

diff --git a/lustre/include/lustre_lmv.h b/lustre/include/lustre_lmv.h
index e683e6c..d32b4ac 100644 (file)
--- a/lustre/include/lustre_lmv.h
+++ b/lustre/include/lustre_lmv.h
@@ -54,6 +54,34 @@ struct lmv_stripe_md {
        struct lmv_oinfo lsm_md_oinfo[0];
 };
 
+static inline bool lmv_dir_striped(const struct lmv_stripe_md *lsm)
+{
+       return lsm && lsm->lsm_md_magic == LMV_MAGIC;
+}
+
+static inline bool lmv_dir_foreign(const struct lmv_stripe_md *lsm)
+{
+       return lsm && lsm->lsm_md_magic == LMV_MAGIC_FOREIGN;
+}
+
+static inline bool lmv_dir_migrating(const struct lmv_stripe_md *lsm)
+{
+       return lmv_dir_striped(lsm) &&
+              lsm->lsm_md_hash_type & LMV_HASH_FLAG_MIGRATION;
+}
+
+static inline bool lmv_dir_bad_hash(const struct lmv_stripe_md *lsm)
+{
+       if (!lmv_dir_striped(lsm))
+               return false;
+
+       if (lmv_dir_migrating(lsm) &&
+           lsm->lsm_md_stripe_count - lsm->lsm_md_migrate_offset <= 1)
+               return false;
+
+       return !lmv_is_known_hash_type(lsm->lsm_md_hash_type);
+}
+
 static inline bool
 lsm_md_eq(const struct lmv_stripe_md *lsm1, const struct lmv_stripe_md *lsm2)
 {
@@ -74,7 +102,7 @@ lsm_md_eq(const struct lmv_stripe_md *lsm1, const struct lmv_stripe_md *lsm2)
                      lsm2->lsm_md_pool_name) != 0)
                return false;
 
-       if (lsm1->lsm_md_magic == LMV_MAGIC_V1) {
+       if (lmv_dir_striped(lsm1)) {
                for (idx = 0; idx < lsm1->lsm_md_stripe_count; idx++) {
                        if (!lu_fid_eq(&lsm1->lsm_md_oinfo[idx].lmo_fid,
                                       &lsm2->lsm_md_oinfo[idx].lmo_fid))
@@ -96,7 +124,7 @@ static inline void lsm_md_dump(int mask, const struct lmv_stripe_md *lsm)
                lsm->lsm_md_layout_version, lsm->lsm_md_migrate_offset,
                lsm->lsm_md_migrate_hash, lsm->lsm_md_pool_name);
 
-       if (lsm->lsm_md_magic != LMV_MAGIC_V1)
+       if (!lmv_dir_striped(lsm))
                return;
 
        for (i = 0; i < lsm->lsm_md_stripe_count; i++)
@@ -190,12 +218,6 @@ static inline int lmv_name_to_stripe_index(__u32 lmv_hash_type,
        return idx;
 }
 
-static inline bool lmv_is_known_hash_type(__u32 type)
-{
-       return (type & LMV_HASH_TYPE_MASK) == LMV_HASH_TYPE_FNV_1A_64 ||
-              (type & LMV_HASH_TYPE_MASK) == LMV_HASH_TYPE_ALL_CHARS;
-}
-
 static inline bool lmv_magic_supported(__u32 lum_magic)
 {
        return lum_magic == LMV_USER_MAGIC ||