bcachefs: Convert all bch2_trans_commit() users to BTREE_INSERT_ATOMIC
authorKent Overstreet <kent.overstreet@gmail.com>
Mon, 23 Dec 2019 04:04:30 +0000 (23:04 -0500)
committerKent Overstreet <kent.overstreet@linux.dev>
Sun, 22 Oct 2023 21:08:33 +0000 (17:08 -0400)
BTREE_INSERT_ATOMIC should really be the default mode, and there's not
that much code that doesn't need it - so this is prep work for getting
rid of the flag.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
fs/bcachefs/btree_update.h
fs/bcachefs/btree_update_leaf.c
fs/bcachefs/dirent.c
fs/bcachefs/dirent.h
fs/bcachefs/ec.c
fs/bcachefs/fs-io.c
fs/bcachefs/fsck.c
fs/bcachefs/inode.c
fs/bcachefs/recovery.c
fs/bcachefs/xattr.c

index ad8cbf3fb778aec5b05d9cb0c69f78ea609eb9a1..d72da179f866c0d629a76d259512ac0828deb189 100644 (file)
@@ -131,24 +131,34 @@ static inline void bch2_trans_update(struct btree_trans *trans,
        };
 }
 
-#define bch2_trans_do(_c, _journal_seq, _flags, _do)                   \
+#define __bch2_trans_do(_trans, _disk_res, _journal_seq,               \
+                       _flags, _reset_flags, _do)                      \
 ({                                                                     \
-       struct btree_trans trans;                                       \
        int _ret;                                                       \
                                                                        \
-       bch2_trans_init(&trans, (_c), 0, 0);                            \
-                                                                       \
        do {                                                            \
-               bch2_trans_begin(&trans);                               \
+               bch2_trans_reset(_trans, _reset_flags);                 \
                                                                        \
-               _ret = (_do) ?: bch2_trans_commit(&trans, NULL,         \
+               _ret = (_do) ?: bch2_trans_commit(_trans, (_disk_res),  \
                                        (_journal_seq), (_flags));      \
        } while (_ret == -EINTR);                                       \
                                                                        \
-       bch2_trans_exit(&trans);                                        \
        _ret;                                                           \
 })
 
+#define bch2_trans_do(_c, _disk_res, _journal_seq, _flags, _do)                \
+({                                                                     \
+       struct btree_trans trans;                                       \
+       int _ret, _ret2;                                                \
+                                                                       \
+       bch2_trans_init(&trans, (_c), 0, 0);                            \
+       _ret = __bch2_trans_do(&trans, _disk_res, _journal_seq, _flags, \
+                              TRANS_RESET_MEM|TRANS_RESET_ITERS, _do); \
+       _ret2 = bch2_trans_exit(&trans);                                \
+                                                                       \
+       _ret ?: _ret2;                                                  \
+})
+
 #define trans_for_each_update(_trans, _i)                              \
        for ((_i) = (_trans)->updates;                                  \
             (_i) < (_trans)->updates + (_trans)->nr_updates;           \
index 55f785dadaac7dce99568233f9b7624079372474..1112bdb689dce6157d68af97cdd8df428b34c8b4 100644 (file)
@@ -823,6 +823,20 @@ err:
        goto retry;
 }
 
+static int __bch2_btree_insert(struct btree_trans *trans,
+                              enum btree_id id, struct bkey_i *k)
+{
+       struct btree_iter *iter;
+
+       iter = bch2_trans_get_iter(trans, id, bkey_start_pos(&k->k),
+                                  BTREE_ITER_INTENT);
+       if (IS_ERR(iter))
+               return PTR_ERR(iter);
+
+       bch2_trans_update(trans, iter, k);
+       return 0;
+}
+
 /**
  * bch2_btree_insert - insert keys into the extent btree
  * @c:                 pointer to struct bch_fs
@@ -831,29 +845,12 @@ err:
  * @hook:              insert callback
  */
 int bch2_btree_insert(struct bch_fs *c, enum btree_id id,
-                    struct bkey_i *k,
-                    struct disk_reservation *disk_res,
-                    u64 *journal_seq, int flags)
+                     struct bkey_i *k,
+                     struct disk_reservation *disk_res,
+                     u64 *journal_seq, int flags)
 {
-       struct btree_trans trans;
-       struct btree_iter *iter;
-       int ret;
-
-       bch2_trans_init(&trans, c, 0, 0);
-retry:
-       bch2_trans_begin(&trans);
-
-       iter = bch2_trans_get_iter(&trans, id, bkey_start_pos(&k->k),
-                                  BTREE_ITER_INTENT);
-
-       bch2_trans_update(&trans, iter, k);
-
-       ret = bch2_trans_commit(&trans, disk_res, journal_seq, flags);
-       if (ret == -EINTR)
-               goto retry;
-       bch2_trans_exit(&trans);
-
-       return ret;
+       return bch2_trans_do(c, disk_res, journal_seq, flags,
+                            __bch2_btree_insert(&trans, id, k));
 }
 
 int bch2_btree_delete_at_range(struct btree_trans *trans,
index 38017699c04af3a01d17cb1239efdaa452e1b8fd..1bf53c55912d40f572f43afb71cd7b4d2acee7aa 100644 (file)
@@ -281,18 +281,6 @@ int bch2_dirent_delete_at(struct btree_trans *trans,
                                   hash_info, iter);
 }
 
-int bch2_dirent_delete(struct bch_fs *c, u64 dir_inum,
-                      const struct bch_hash_info *hash_info,
-                      const struct qstr *name,
-                      u64 *journal_seq)
-{
-       return bch2_trans_do(c, journal_seq,
-                            BTREE_INSERT_ATOMIC|
-                            BTREE_INSERT_NOFAIL,
-               bch2_hash_delete(&trans, bch2_dirent_hash_desc, hash_info,
-                                dir_inum, name));
-}
-
 struct btree_iter *
 __bch2_dirent_lookup_trans(struct btree_trans *trans, u64 dir_inum,
                           const struct bch_hash_info *hash_info,
index e6184dc796d38e634bf60fce3d14b379b956424a..34769371dd13d1725dc96f2c6d01a5fb10d9ecd6 100644 (file)
@@ -36,8 +36,6 @@ int bch2_dirent_create(struct btree_trans *, u64,
 int bch2_dirent_delete_at(struct btree_trans *,
                          const struct bch_hash_info *,
                          struct btree_iter *);
-int bch2_dirent_delete(struct bch_fs *, u64, const struct bch_hash_info *,
-                      const struct qstr *, u64 *);
 
 enum bch_rename_mode {
        BCH_RENAME,
index 3b3b931dc6c9742ae7241cf02d99470ad4231930..ae07af49af02d97f6603bb3923487b9165894be7 100644 (file)
@@ -1235,6 +1235,7 @@ static int __bch2_stripe_write_key(struct btree_trans *trans,
        bch2_trans_update(trans, iter, &new_key->k_i);
 
        return bch2_trans_commit(trans, NULL, NULL,
+                                BTREE_INSERT_ATOMIC|
                                 BTREE_INSERT_NOFAIL|flags);
 }
 
@@ -1259,8 +1260,13 @@ int bch2_stripes_write(struct bch_fs *c, unsigned flags, bool *wrote)
                if (!m->dirty)
                        continue;
 
-               ret = __bch2_stripe_write_key(&trans, iter, m, giter.pos,
-                                             new_key, flags);
+               do {
+                       bch2_trans_reset(&trans, TRANS_RESET_MEM);
+
+                       ret = __bch2_stripe_write_key(&trans, iter, m,
+                                       giter.pos, new_key, flags);
+               } while (ret == -EINTR);
+
                if (ret)
                        break;
 
index 5656e26540fa8ed215eefd95ff0a5102beac5299..f766bbc35cee1d462becd50d3cb8a77a0858add8 100644 (file)
@@ -2465,9 +2465,7 @@ static long bchfs_fcollapse_finsert(struct bch_inode_info *inode,
                struct bpos next_pos;
                struct bpos move_pos = POS(inode->v.i_ino, offset >> 9);
                struct bpos atomic_end;
-               unsigned commit_flags = BTREE_INSERT_NOFAIL|
-                       BTREE_INSERT_ATOMIC|
-                       BTREE_INSERT_USE_RESERVE;
+               unsigned commit_flags = 0;
 
                k = insert
                        ? bch2_btree_iter_peek_prev(src)
@@ -2560,6 +2558,8 @@ reassemble:
 
                ret = bch2_trans_commit(&trans, &disk_res,
                                        &inode->ei_journal_seq,
+                                       BTREE_INSERT_ATOMIC|
+                                       BTREE_INSERT_NOFAIL|
                                        commit_flags);
                bch2_disk_reservation_put(c, &disk_res);
 bkey_err:
index 3ae545b31c7a0645488c07faec596cdcc54a08d1..a0fdd2ba92f614069e1b0b936431aa06daf6489d 100644 (file)
@@ -37,8 +37,8 @@ static s64 bch2_count_inode_sectors(struct btree_trans *trans, u64 inum)
        return ret ?: sectors;
 }
 
-static int remove_dirent(struct btree_trans *trans,
-                        struct bkey_s_c_dirent dirent)
+static int __remove_dirent(struct btree_trans *trans,
+                          struct bkey_s_c_dirent dirent)
 {
        struct bch_fs *c = trans->c;
        struct qstr name;
@@ -49,31 +49,41 @@ static int remove_dirent(struct btree_trans *trans,
        char *buf;
 
        name.len = bch2_dirent_name_bytes(dirent);
-       buf = kmalloc(name.len + 1, GFP_KERNEL);
-       if (!buf)
-               return -ENOMEM;
+       buf = bch2_trans_kmalloc(trans, name.len + 1);
+       if (IS_ERR(buf))
+               return PTR_ERR(buf);
 
        memcpy(buf, dirent.v->d_name, name.len);
        buf[name.len] = '\0';
        name.name = buf;
 
-       /* Unlock so we don't deadlock, after copying name: */
-       bch2_trans_unlock(trans);
-
-       ret = bch2_inode_find_by_inum(c, dir_inum, &dir_inode);
-       if (ret) {
+       ret = bch2_inode_find_by_inum_trans(trans, dir_inum, &dir_inode);
+       if (ret && ret != -EINTR)
                bch_err(c, "remove_dirent: err %i looking up directory inode", ret);
-               goto err;
-       }
+       if (ret)
+               return ret;
 
        dir_hash_info = bch2_hash_info_init(c, &dir_inode);
 
-       ret = bch2_dirent_delete(c, dir_inum, &dir_hash_info, &name, NULL);
-       if (ret)
+       ret = bch2_hash_delete(trans, bch2_dirent_hash_desc,
+                              &dir_hash_info, dir_inum, &name);
+       if (ret && ret != -EINTR)
                bch_err(c, "remove_dirent: err %i deleting dirent", ret);
-err:
-       kfree(buf);
-       return ret;
+       if (ret)
+               return ret;
+
+       return 0;
+}
+
+static int remove_dirent(struct btree_trans *trans,
+                        struct bkey_s_c_dirent dirent)
+{
+       return __bch2_trans_do(trans, NULL, NULL,
+                              BTREE_INSERT_ATOMIC|
+                              BTREE_INSERT_NOFAIL|
+                              BTREE_INSERT_LAZY_RW,
+                              TRANS_RESET_MEM,
+                              __remove_dirent(trans, dirent));
 }
 
 static int reattach_inode(struct bch_fs *c,
@@ -88,7 +98,7 @@ static int reattach_inode(struct bch_fs *c,
        snprintf(name_buf, sizeof(name_buf), "%llu", inum);
        name = (struct qstr) QSTR(name_buf);
 
-       ret = bch2_trans_do(c, NULL,
+       ret = bch2_trans_do(c, NULL, NULL,
                            BTREE_INSERT_ATOMIC|
                            BTREE_INSERT_LAZY_RW,
                bch2_link_trans(&trans, lostfound_inode->bi_inum,
@@ -171,27 +181,27 @@ static int hash_redo_key(const struct bch_hash_desc desc,
                         struct btree_iter *k_iter, struct bkey_s_c k,
                         u64 hashed)
 {
+       struct bkey_i delete;
        struct bkey_i *tmp;
-       int ret = 0;
 
-       tmp = kmalloc(bkey_bytes(k.k), GFP_KERNEL);
-       if (!tmp)
-               return -ENOMEM;
+       bch2_trans_reset(trans, TRANS_RESET_MEM);
+
+       tmp = bch2_trans_kmalloc(trans, bkey_bytes(k.k));
+       if (IS_ERR(tmp))
+               return PTR_ERR(tmp);
 
        bkey_reassemble(tmp, k);
 
-       ret = bch2_btree_delete_at(trans, k_iter, 0);
-       if (ret)
-               goto err;
+       bkey_init(&delete.k);
+       delete.k.p = k_iter->pos;
+       bch2_trans_update(trans, k_iter, &delete);
 
-       bch2_hash_set(trans, desc, &h->info, k_iter->pos.inode,
-                     tmp, BCH_HASH_SET_MUST_CREATE);
-       ret = bch2_trans_commit(trans, NULL, NULL,
-                               BTREE_INSERT_NOFAIL|
-                               BTREE_INSERT_LAZY_RW);
-err:
-       kfree(tmp);
-       return ret;
+       return  bch2_hash_set(trans, desc, &h->info, k_iter->pos.inode,
+                             tmp, BCH_HASH_SET_MUST_CREATE) ?:
+               bch2_trans_commit(trans, NULL, NULL,
+                                 BTREE_INSERT_ATOMIC|
+                                 BTREE_INSERT_NOFAIL|
+                                 BTREE_INSERT_LAZY_RW);
 }
 
 static int fsck_hash_delete_at(struct btree_trans *trans,
@@ -313,9 +323,11 @@ static int hash_check_key(struct btree_trans *trans,
                        "hashed to %llu chain starts at %llu\n%s",
                        desc.btree_id, k.k->p.offset,
                        hashed, h->chain->pos.offset,
-                       (bch2_bkey_val_to_text(&PBUF(buf), c,
-                                              k), buf))) {
-               ret = hash_redo_key(desc, trans, h, k_iter, k, hashed);
+                       (bch2_bkey_val_to_text(&PBUF(buf), c, k), buf))) {
+               do {
+                       ret = hash_redo_key(desc, trans, h, k_iter, k, hashed);
+               } while (ret == -EINTR);
+
                if (ret) {
                        bch_err(c, "hash_redo_key err %i", ret);
                        return ret;
@@ -376,11 +388,12 @@ static int check_dirent_hash(struct btree_trans *trans, struct hash_check *h,
 
        if (fsck_err(c, "dirent with junk at end, was %s (%zu) now %s (%u)",
                     buf, strlen(buf), d->v.d_name, len)) {
-               bch2_trans_update(trans, iter, &d->k_i);
-
-               ret = bch2_trans_commit(trans, NULL, NULL,
-                                       BTREE_INSERT_NOFAIL|
-                                       BTREE_INSERT_LAZY_RW);
+               ret = __bch2_trans_do(trans, NULL, NULL,
+                                     BTREE_INSERT_ATOMIC|
+                                     BTREE_INSERT_NOFAIL|
+                                     BTREE_INSERT_LAZY_RW,
+                                     TRANS_RESET_MEM,
+                       (bch2_trans_update(trans, iter, &d->k_i), 0));
                if (ret)
                        goto err;
 
@@ -402,8 +415,11 @@ err_redo:
                     k->k->p.offset, hash, h->chain->pos.offset,
                     (bch2_bkey_val_to_text(&PBUF(buf), c,
                                            *k), buf))) {
-               ret = hash_redo_key(bch2_dirent_hash_desc, trans,
-                                   h, iter, *k, hash);
+               do {
+                       ret = hash_redo_key(bch2_dirent_hash_desc, trans,
+                                           h, iter, *k, hash);
+               } while (ret == -EINTR);
+
                if (ret)
                        bch_err(c, "hash_redo_key err %i", ret);
                else
@@ -646,11 +662,12 @@ retry:
                        bkey_reassemble(&n->k_i, d.s_c);
                        n->v.d_type = mode_to_type(target.bi_mode);
 
-                       bch2_trans_update(&trans, iter, &n->k_i);
-
-                       ret = bch2_trans_commit(&trans, NULL, NULL,
-                                               BTREE_INSERT_NOFAIL|
-                                               BTREE_INSERT_LAZY_RW);
+                       ret = __bch2_trans_do(&trans, NULL, NULL,
+                                             BTREE_INSERT_ATOMIC|
+                                             BTREE_INSERT_NOFAIL|
+                                             BTREE_INSERT_LAZY_RW,
+                                             TRANS_RESET_MEM,
+                               (bch2_trans_update(&trans, iter, &n->k_i), 0));
                        kfree(n);
                        if (ret)
                                goto err;
@@ -790,7 +807,7 @@ fsck_err:
 create_lostfound:
        bch2_inode_init_early(c, lostfound_inode);
 
-       ret = bch2_trans_do(c, NULL,
+       ret = bch2_trans_do(c, NULL, NULL,
                            BTREE_INSERT_ATOMIC|
                            BTREE_INSERT_NOFAIL|
                            BTREE_INSERT_LAZY_RW,
@@ -1261,12 +1278,14 @@ static int check_inode(struct btree_trans *trans,
                struct bkey_inode_buf p;
 
                bch2_inode_pack(&p, &u);
-               bch2_trans_update(trans, iter, &p.inode.k_i);
 
-               ret = bch2_trans_commit(trans, NULL, NULL,
-                                       BTREE_INSERT_NOFAIL|
-                                       BTREE_INSERT_LAZY_RW);
-               if (ret && ret != -EINTR)
+               ret = __bch2_trans_do(trans, NULL, NULL,
+                                     BTREE_INSERT_ATOMIC|
+                                     BTREE_INSERT_NOFAIL|
+                                     BTREE_INSERT_LAZY_RW,
+                                     TRANS_RESET_MEM,
+                       (bch2_trans_update(trans, iter, &p.inode.k_i), 0));
+               if (ret)
                        bch_err(c, "error in fsck: error %i "
                                "updating inode", ret);
        }
index 67555db01dc47bbcf6bb5de75933100487493a1e..e2407dcbcb35e6cd6a1d8d2a638700d84ab751b5 100644 (file)
@@ -533,7 +533,7 @@ int bch2_inode_find_by_inum_trans(struct btree_trans *trans, u64 inode_nr,
 int bch2_inode_find_by_inum(struct bch_fs *c, u64 inode_nr,
                            struct bch_inode_unpacked *inode)
 {
-       return bch2_trans_do(c, NULL, 0,
+       return bch2_trans_do(c, NULL, NULL, 0,
                bch2_inode_find_by_inum_trans(&trans, inode_nr, inode));
 }
 
index e6b51131cff2d990c3c66b6256ec3eb13134a816..a3ee2f4749523c4edadd977404590aecbb000cc8 100644 (file)
@@ -1009,7 +1009,7 @@ int bch2_fs_initialize(struct bch_fs *c)
        bch2_inode_init_early(c, &lostfound_inode);
 
        err = "error creating lost+found";
-       ret = bch2_trans_do(c, NULL, BTREE_INSERT_ATOMIC,
+       ret = bch2_trans_do(c, NULL, NULL, BTREE_INSERT_ATOMIC,
                bch2_create_trans(&trans, BCACHEFS_ROOT_INO,
                                  &root_inode, &lostfound_inode,
                                  &lostfound,
index 5aeff1012f8b9565812187d273e7a851e2a736d9..6cef6c14fc897a7df8588f058919ef2ea3f2b385 100644 (file)
@@ -328,7 +328,8 @@ static int bch2_xattr_set_handler(const struct xattr_handler *handler,
        struct bch_inode_info *inode = to_bch_ei(vinode);
        struct bch_fs *c = inode->v.i_sb->s_fs_info;
 
-       return bch2_trans_do(c, &inode->ei_journal_seq, BTREE_INSERT_ATOMIC,
+       return bch2_trans_do(c, NULL, &inode->ei_journal_seq,
+                            BTREE_INSERT_ATOMIC,
                        bch2_xattr_set(&trans, inode->v.i_ino,
                                       &inode->ei_str_hash,
                                       name, value, size,