bcachefs: unify extent trigger

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

fs/bcachefs/buckets.c

@@ -945,11 +945,11 @@ static int bch2_trigger_stripe_ptr(struct btree_trans *trans,
 	return 0;
 }
 
-static int __mark_extent(struct btree_trans *trans,
+static int __trigger_extent(struct btree_trans *trans,
 			    enum btree_id btree_id, unsigned level,
 			    struct bkey_s_c k, unsigned flags)
 {
-	u64 journal_seq = trans->journal_res.seq;
+	bool gc = flags & BTREE_TRIGGER_GC;
 	struct bch_fs *c = trans->c;
 	struct bkey_ptrs_c ptrs = bch2_bkey_ptrs_c(k);
 	const union bch_extent_entry *entry;
@@ -959,9 +959,7 @@ static int __mark_extent(struct btree_trans *trans,
 		? BCH_DATA_btree
 		: BCH_DATA_user;
 	s64 dirty_sectors = 0;
-	int ret;
-
-	BUG_ON(!(flags & BTREE_TRIGGER_GC));
+	int ret = 0;
 
 	r.e.data_type	= data_type;
 	r.e.nr_devs	= 0;
@@ -977,14 +975,14 @@ static int __mark_extent(struct btree_trans *trans,
 
 		if (p.ptr.cached) {
 			if (!stale) {
-				ret = update_cached_sectors(c, k, p.ptr.dev,
-						disk_sectors, journal_seq, true);
-				if (ret) {
-					bch2_fs_fatal_error(c, "%s(): no replicas entry while updating cached sectors",
+				ret = !gc
+					? bch2_update_cached_sectors_list(trans, p.ptr.dev, disk_sectors)
+					: update_cached_sectors(c, k, p.ptr.dev, disk_sectors, 0, true);
+				bch2_fs_fatal_err_on(ret && gc, c, "%s(): no replicas entry while updating cached sectors",
 						     __func__);
+				if (ret)
 					return ret;
 			}
-			}
 		} else if (!p.has_ec) {
 			dirty_sectors	       += disk_sectors;
 			r.e.devs[r.e.nr_devs++]	= p.ptr.dev;
@@ -1003,75 +1001,16 @@ static int __mark_extent(struct btree_trans *trans,
 	}
 
 	if (r.e.nr_devs) {
-		ret = bch2_update_replicas(c, k, &r.e, dirty_sectors, journal_seq, true);
-		if (ret) {
+		ret = !gc
+			? bch2_update_replicas_list(trans, &r.e, dirty_sectors)
+			: bch2_update_replicas(c, k, &r.e, dirty_sectors, 0, true);
+		if (unlikely(ret && gc)) {
 			struct printbuf buf = PRINTBUF;
 
 			bch2_bkey_val_to_text(&buf, c, k);
 			bch2_fs_fatal_error(c, "%s(): no replicas entry for %s", __func__, buf.buf);
 			printbuf_exit(&buf);
-			return ret;
 		}
-	}
-
-	return 0;
-}
-
-int bch2_mark_extent(struct btree_trans *trans,
-		     enum btree_id btree_id, unsigned level,
-		     struct bkey_s_c old, struct bkey_s new,
-		     unsigned flags)
-{
-	return trigger_run_overwrite_then_insert(__mark_extent, trans, btree_id, level, old, new, flags);
-}
-
-static int __trans_mark_extent(struct btree_trans *trans,
-			       enum btree_id btree_id, unsigned level,
-			       struct bkey_s_c k, unsigned flags)
-{
-	struct bkey_ptrs_c ptrs = bch2_bkey_ptrs_c(k);
-	const union bch_extent_entry *entry;
-	struct extent_ptr_decoded p;
-	struct bch_replicas_padded r;
-	enum bch_data_type data_type = bkey_is_btree_ptr(k.k)
-		? BCH_DATA_btree
-		: BCH_DATA_user;
-	s64 dirty_sectors = 0;
-	int ret = 0;
-
-	r.e.data_type	= data_type;
-	r.e.nr_devs	= 0;
-	r.e.nr_required	= 1;
-
-	bkey_for_each_ptr_decode(k.k, ptrs, p, entry) {
-		s64 disk_sectors;
-		ret = bch2_trigger_pointer(trans, btree_id, level, k, p, &disk_sectors, flags);
-		if (ret < 0)
-			return ret;
-
-		bool stale = ret > 0;
-
-		if (p.ptr.cached) {
-			if (!stale) {
-				ret = bch2_update_cached_sectors_list(trans, p.ptr.dev,
-								      disk_sectors);
-				if (ret)
-					return ret;
-			}
-		} else if (!p.has_ec) {
-			dirty_sectors	       += disk_sectors;
-			r.e.devs[r.e.nr_devs++]	= p.ptr.dev;
-		} else {
-			ret = bch2_trigger_stripe_ptr(trans, k, p, data_type, disk_sectors, flags);
-			if (ret)
-				return ret;
-
-			r.e.nr_required = 0;
-		}
-	}
-
-	if (r.e.nr_devs) {
-		ret = bch2_update_replicas_list(trans, &r.e, dirty_sectors);
 		if (ret)
 			return ret;
 	}
@@ -1079,11 +1018,12 @@ static int __trans_mark_extent(struct btree_trans *trans,
 	return 0;
 }
 
-int bch2_trans_mark_extent(struct btree_trans *trans,
+int bch2_trigger_extent(struct btree_trans *trans,
 			enum btree_id btree_id, unsigned level,
 			struct bkey_s_c old, struct bkey_s new,
 			unsigned flags)
 {
+	if (flags & BTREE_TRIGGER_TRANSACTIONAL) {
 		struct bch_fs *c = trans->c;
 		int mod = (int) bch2_bkey_needs_rebalance(c, new.s_c) -
 			  (int) bch2_bkey_needs_rebalance(c, old);
@@ -1093,8 +1033,12 @@ int bch2_trans_mark_extent(struct btree_trans *trans,
 			if (ret)
 				return ret;
 		}
+	}
 
-	return trigger_run_overwrite_then_insert(__trans_mark_extent, trans, btree_id, level, old, new, flags);
+	if (flags & (BTREE_TRIGGER_TRANSACTIONAL|BTREE_TRIGGER_GC))
+		return trigger_run_overwrite_then_insert(__trigger_extent, trans, btree_id, level, old, new, flags);
+
+	return 0;
 }
 
 /* KEY_TYPE_reservation */

fs/bcachefs/buckets.h

@@ -340,12 +340,11 @@ int bch2_mark_metadata_bucket(struct bch_fs *, struct bch_dev *,
 			      size_t, enum bch_data_type, unsigned,
 			      struct gc_pos, unsigned);
 
-int bch2_mark_extent(struct btree_trans *, enum btree_id, unsigned,
+int bch2_trigger_extent(struct btree_trans *, enum btree_id, unsigned,
 			struct bkey_s_c, struct bkey_s, unsigned);
 int bch2_trigger_reservation(struct btree_trans *, enum btree_id, unsigned,
 			  struct bkey_s_c, struct bkey_s, unsigned);
 
-int bch2_trans_mark_extent(struct btree_trans *, enum btree_id, unsigned, struct bkey_s_c, struct bkey_s, unsigned);
 #define trigger_run_overwrite_then_insert(_fn, _trans, _btree_id, _level, _old, _new, _flags)\
 ({												\
 	int ret = 0;										\

fs/bcachefs/extents.h

@@ -415,8 +415,8 @@ void bch2_btree_ptr_v2_compat(enum btree_id, unsigned, unsigned,
 	.key_invalid	= bch2_btree_ptr_invalid,		\
 	.val_to_text	= bch2_btree_ptr_to_text,		\
 	.swab		= bch2_ptr_swab,			\
-	.trans_trigger	= bch2_trans_mark_extent,		\
-	.atomic_trigger	= bch2_mark_extent,			\
+	.trans_trigger	= bch2_trigger_extent,			\
+	.atomic_trigger	= bch2_trigger_extent,			\
 })
 
 #define bch2_bkey_ops_btree_ptr_v2 ((struct bkey_ops) {		\
@@ -424,8 +424,8 @@ void bch2_btree_ptr_v2_compat(enum btree_id, unsigned, unsigned,
 	.val_to_text	= bch2_btree_ptr_v2_to_text,		\
 	.swab		= bch2_ptr_swab,			\
 	.compat		= bch2_btree_ptr_v2_compat,		\
-	.trans_trigger	= bch2_trans_mark_extent,		\
-	.atomic_trigger	= bch2_mark_extent,			\
+	.trans_trigger	= bch2_trigger_extent,			\
+	.atomic_trigger	= bch2_trigger_extent,			\
 	.min_val_size	= 40,					\
 })
 
@@ -439,8 +439,8 @@ bool bch2_extent_merge(struct bch_fs *, struct bkey_s, struct bkey_s_c);
 	.swab		= bch2_ptr_swab,			\
 	.key_normalize	= bch2_extent_normalize,		\
 	.key_merge	= bch2_extent_merge,			\
-	.trans_trigger	= bch2_trans_mark_extent,		\
-	.atomic_trigger	= bch2_mark_extent,			\
+	.trans_trigger	= bch2_trigger_extent,			\
+	.atomic_trigger	= bch2_trigger_extent,			\
 })
 
 /* KEY_TYPE_reservation: */

fs/bcachefs/reflink.c

@@ -308,7 +308,7 @@ int bch2_trans_mark_reflink_v(struct btree_trans *trans,
 		    bkey_val_bytes(new.k) - 8))
 		return 0;
 
-	return bch2_trans_mark_extent(trans, btree_id, level, old, new, flags);
+	return bch2_trigger_extent(trans, btree_id, level, old, new, flags);
 }
 
 /* indirect inline data */

fs/bcachefs/reflink.h

@@ -33,7 +33,7 @@ int bch2_trans_mark_reflink_v(struct btree_trans *, enum btree_id, unsigned,
 	.val_to_text	= bch2_reflink_v_to_text,		\
 	.swab		= bch2_ptr_swab,			\
 	.trans_trigger	= bch2_trans_mark_reflink_v,		\
-	.atomic_trigger	= bch2_mark_extent,			\
+	.atomic_trigger	= bch2_trigger_extent,			\
 	.min_val_size	= 8,					\
 })