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Mon, 10 Jul 2023 07:00:24 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 2sUrDYisq2TdYgAAMHmgww (envelope-from ); Mon, 10 Jul 2023 07:00:24 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 717eb1f8-1eef-11ee-b239-6b7b168915f2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1688972424; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=EzvJEgIn/rZaTJd+/fCRGx2LuqccSDVwxNp6blv09EQ=; b=p2ykWYe6hEf9TmuI1G2oXvEdrA7uNc8uVO1XMXXjWbuLNvdDTcOWoU5ipYscRN2LRiAK+v 6vu3n557Odvyk6M9ZVXfrYsCdj7Sxhqh03wFAohGrE5JneZx7xmvbKbayzNxMvMhXSplgN 8c0U45JwzDdbKHh/lvrQKcljDxb+zO4= From: Juergen Gross To: xen-devel@lists.xenproject.org Cc: Juergen Gross , Wei Liu , Julien Grall , Anthony PERARD , Julien Grall Subject: [PATCH v2 06/18] tools/xenstore: switch get_acc_data() to use name instead of key Date: Mon, 10 Jul 2023 08:59:35 +0200 Message-Id: <20230710065947.4201-7-jgross@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230710065947.4201-1-jgross@suse.com> References: <20230710065947.4201-1-jgross@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @suse.com) X-ZM-MESSAGEID: 1688972454669100001 Content-Type: text/plain; charset="utf-8" Eliminate further TDB_DATA usage by switching get_acc_data() and get_acc_domid() from a TDB key to the name of the node in the data base as a parameter. This is in preparation to replace TDB with a more simple data storage. Signed-off-by: Juergen Gross Reviewed-by: Julien Grall --- tools/xenstore/xenstored_core.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git a/tools/xenstore/xenstored_core.c b/tools/xenstore/xenstored_cor= e.c index 9bcff43e21..170181d8e6 100644 --- a/tools/xenstore/xenstored_core.c +++ b/tools/xenstore/xenstored_core.c @@ -566,19 +566,20 @@ void set_tdb_key(const char *name, TDB_DATA *key) key->dsize =3D strlen(name); } =20 -static void get_acc_data(TDB_DATA *key, struct node_account_data *acc) +static void get_acc_data(const char *name, struct node_account_data *acc) { - TDB_DATA old_data; + TDB_DATA key, old_data; struct xs_tdb_record_hdr *hdr; =20 if (acc->memory < 0) { - old_data =3D tdb_fetch(tdb_ctx, *key); + set_tdb_key(name, &key); + old_data =3D tdb_fetch(tdb_ctx, key); /* No check for error, as the node might not exist. */ if (old_data.dptr =3D=3D NULL) { acc->memory =3D 0; } else { - trace_tdb("read %s size %zu\n", key->dptr, - old_data.dsize + key->dsize); + trace_tdb("read %s size %zu\n", name, + old_data.dsize + key.dsize); hdr =3D (void *)old_data.dptr; acc->memory =3D old_data.dsize; acc->domid =3D hdr->perms[0].id; @@ -593,11 +594,10 @@ static void get_acc_data(TDB_DATA *key, struct node_a= ccount_data *acc) * count prepended (e.g. 123/local/domain/...). So testing for the node's * key not to start with "/" or "@" is sufficient. */ -static unsigned int get_acc_domid(struct connection *conn, TDB_DATA *key, +static unsigned int get_acc_domid(struct connection *conn, const char *nam= e, unsigned int domid) { - return (!conn || key->dptr[0] =3D=3D '/' || key->dptr[0] =3D=3D '@') - ? domid : conn->id; + return (!conn || name[0] =3D=3D '/' || name[0] =3D=3D '@') ? domid : conn= ->id; } =20 int db_write(struct connection *conn, const char *db_name, void *data, @@ -618,9 +618,9 @@ int db_write(struct connection *conn, const char *db_na= me, void *data, else old_acc =3D *acc; =20 - get_acc_data(&key, &old_acc); - old_domid =3D get_acc_domid(conn, &key, old_acc.domid); - new_domid =3D get_acc_domid(conn, &key, hdr->perms[0].id); + get_acc_data(db_name, &old_acc); + old_domid =3D get_acc_domid(conn, db_name, old_acc.domid); + new_domid =3D get_acc_domid(conn, db_name, hdr->perms[0].id); =20 /* * Don't check for ENOENT, as we want to be able to switch orphaned @@ -675,7 +675,7 @@ int db_delete(struct connection *conn, const char *name, acc->memory =3D -1; } =20 - get_acc_data(&key, acc); + get_acc_data(name, acc); =20 if (tdb_delete(tdb_ctx, key)) { errno =3D EIO; @@ -684,7 +684,7 @@ int db_delete(struct connection *conn, const char *name, trace_tdb("delete %s\n", name); =20 if (acc->memory) { - domid =3D get_acc_domid(conn, &key, acc->domid); + domid =3D get_acc_domid(conn, name, acc->domid); domain_memory_add_nochk(conn, domid, -acc->memory - key.dsize); } =20 --=20 2.35.3