]> git.sesse.net Git - bcachefs-tools-debian/blobdiff - libbcachefs/backpointers.h
Disable pristine-tar option in gbp.conf, since there is no pristine-tar branch.
[bcachefs-tools-debian] / libbcachefs / backpointers.h
index 87e31aa1975c26e910ee1c6c603669b77c86ff9d..327365a9feac4e8fa69575ec6fe6157fd3edb127 100644 (file)
@@ -2,12 +2,22 @@
 #ifndef _BCACHEFS_BACKPOINTERS_BACKGROUND_H
 #define _BCACHEFS_BACKPOINTERS_BACKGROUND_H
 
+#include "btree_cache.h"
 #include "btree_iter.h"
 #include "btree_update.h"
 #include "buckets.h"
 #include "super.h"
 
-int bch2_backpointer_invalid(const struct bch_fs *, struct bkey_s_c k,
+static inline u64 swab40(u64 x)
+{
+       return (((x & 0x00000000ffULL) << 32)|
+               ((x & 0x000000ff00ULL) << 16)|
+               ((x & 0x0000ff0000ULL) >>  0)|
+               ((x & 0x00ff000000ULL) >> 16)|
+               ((x & 0xff00000000ULL) >> 32));
+}
+
+int bch2_backpointer_invalid(struct bch_fs *, struct bkey_s_c k,
                             enum bkey_invalid_flags, struct printbuf *);
 void bch2_backpointer_to_text(struct printbuf *, const struct bch_backpointer *);
 void bch2_backpointer_k_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
@@ -54,7 +64,7 @@ static inline struct bpos bucket_pos_to_bp(const struct bch_fs *c,
        return ret;
 }
 
-int bch2_bucket_backpointer_mod_nowritebuffer(struct btree_trans *, struct bpos,
+int bch2_bucket_backpointer_mod_nowritebuffer(struct btree_trans *, struct bpos bucket,
                                struct bch_backpointer, struct bkey_s_c, bool);
 
 static inline int bch2_bucket_backpointer_mod(struct btree_trans *trans,
@@ -63,28 +73,21 @@ static inline int bch2_bucket_backpointer_mod(struct btree_trans *trans,
                                struct bkey_s_c orig_k,
                                bool insert)
 {
-       struct bch_fs *c = trans->c;
-       struct bkey_i_backpointer *bp_k;
-       int ret;
-
        if (unlikely(bch2_backpointers_no_use_write_buffer))
                return bch2_bucket_backpointer_mod_nowritebuffer(trans, bucket, bp, orig_k, insert);
 
-       bp_k = bch2_trans_kmalloc_nomemzero(trans, sizeof(struct bkey_i_backpointer));
-       ret = PTR_ERR_OR_ZERO(bp_k);
-       if (ret)
-               return ret;
+       struct bkey_i_backpointer bp_k;
 
-       bkey_backpointer_init(&bp_k->k_i);
-       bp_k->k.p = bucket_pos_to_bp(c, bucket, bp.bucket_offset);
-       bp_k->v = bp;
+       bkey_backpointer_init(&bp_k.k_i);
+       bp_k.k.p = bucket_pos_to_bp(trans->c, bucket, bp.bucket_offset);
+       bp_k.v = bp;
 
        if (!insert) {
-               bp_k->k.type = KEY_TYPE_deleted;
-               set_bkey_val_u64s(&bp_k->k, 0);
+               bp_k.k.type = KEY_TYPE_deleted;
+               set_bkey_val_u64s(&bp_k.k, 0);
        }
 
-       return bch2_trans_update_buffered(trans, BTREE_ID_backpointers, &bp_k->k_i);
+       return bch2_trans_update_buffered(trans, BTREE_ID_backpointers, &bp_k.k_i);
 }
 
 static inline enum bch_data_type bkey_ptr_data_type(enum btree_id btree_id, unsigned level,