Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vlZtB-000xJO-2p for pgsql-committers@arkaria.postgresql.org; Thu, 29 Jan 2026 21:49:21 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1vlZt9-001IMK-35 for pgsql-committers@arkaria.postgresql.org; Thu, 29 Jan 2026 21:49:20 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vlZt9-001IM3-2R for pgsql-committers@lists.postgresql.org; Thu, 29 Jan 2026 21:49:20 +0000 Received: from mahout.postgresql.org ([2001:4800:3e1:1::227]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vlZt8-00020D-0a for pgsql-committers@lists.postgresql.org; Thu, 29 Jan 2026 21:49:19 +0000 Received: from gemulon.postgresql.org ([2001:4800:3e1:1::198]) by mahout.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vlZt8-0005D5-00 for pgsql-committers@lists.postgresql.org; Thu, 29 Jan 2026 21:49:18 +0000 Received: from localhost ([127.0.0.1] helo=gemulon.postgresql.org) by gemulon.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1vlZt7-0002zi-1Z for pgsql-committers@lists.postgresql.org; Thu, 29 Jan 2026 21:49:18 +0000 Content-Type: multipart/mixed; boundary="===============8059090322292869482==" MIME-Version: 1.0 From: Andres Freund To: pgsql-committers@lists.postgresql.org Subject: pgsql: bufmgr: Allow conditionally locking of already locked buffer X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Thu, 29 Jan 2026 21:49:18 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============8059090322292869482== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 YnVmbWdyOiBBbGxvdyBjb25kaXRpb25hbGx5IGxvY2tpbmcgb2YgYWxyZWFkeSBsb2NrZWQgYnVm ZmVyCgpJbiBmY2I5Yzk3N2FhNSBJIGluY2x1ZGVkIGFuIGFzc2VydGlvbiBpbiBCdWZmZXJMb2Nr Q29uZGl0aW9uYWwoKSB0byBkZXRlY3QgaWYKYSBjb25kaXRpb25hbCBsb2NrIGFjcXVpc2l0aW9u IGlzIGRvbmUgb24gYSBidWZmZXIgdGhhdCB3ZSBhbHJlYWR5IGhhdmUKbG9ja2VkLiBUaGUgYXNz ZXJ0aW9uIHdhcyBhZGRlZCBpbiB0aGUgY291cnNlIG9mIGFkZGluZyBvdGhlciBhc3NlcnRpb25z LgpVbmZvcnR1bmF0ZWx5IEkgZmFpbGVkIHRvIHJlYWxpemUgdGhhdCBzb21lIG9mIG91ciBjb2Rl IHJlbGllcyBvbiBzdWNoIGxvY2sKYWNxdWlzaXRpb25zIHRvIHNpbGVudGx5IGZhaWwuIEUuZy4g c3BnaXN0IGFuZCBuYnRyZWUgbWF5IHRyeSB0byBjb25kaXRpb25hbGx5CmxvY2sgYW4gYWxyZWFk eSBsb2NrZWQgYnVmZmVyIHdoZW4gYWNxdWlyaW5nIGEgZW1wdHkgYnVmZmVyLgoKTFdMb2NrQWNx dWlyZUNvbmRpdGlvbmFsKCksIHdoaWNoIHdhcyBwcmV2aW91c2x5IHVzZWQgdG8gaW1wbGVtZW50 CkNvbmRpdGlvbmFsTG9ja0J1ZmZlcigpLCBkb2VzIG5vdCBoYXZlIHN1Y2ggYW4gYXNzZXJ0LgoK SW5zdGVhZCBvZiBqdXN0IHJlbW92aW5nIHRoZSBhc3NlcnQsIGFuZCByZWx5aW5nIG9uIHRoZSBs b2NrIGFjcXVpc2l0aW9uIHRvCmZhaWwgZHVlIHRvIHRoZSBidWZmZXIgYWxyZWFkeSBsb2NrZWQs IHRoaXMgY29tbWl0IGNoYW5nZXMgdGhlIGJlaGF2aW91ciBvZgpjb25kaXRpb25hbCBjb250ZW50 IGxvY2sgYWNxdWlzaXRpb24gdG8gZmFpbCBpZiB0aGUgY3VycmVudCBiYWNrZW5kIGhhcyBhbnkK cHJlLWV4aXN0aW5nIGxvY2sgb24gdGhlIGJ1ZmZlciwgZXZlbiBpZiB0aGUgbG9jayBtb2RlcyB3 b3VsZCBub3QKY29uZmxpY3QuIFRoZSByZWFzb24gZm9yIHRoYXQgaXMgdGhhdCB3ZSBjdXJyZW50 bHkgZG8gbm90IGhhdmUgc3BhY2UgdG8gdHJhY2sKbXVsdGlwbGUgbG9jayBhY3F1aXNpdGlvbnMg b24gYSBzaW5nbGUgYnVmZmVyLiBBbGxvd2luZyBtdWx0aXBsZSBsb2NrcyBvbiB0aGUKc2FtZSBi dWZmZXIgYnkgYSBiYWNrZW5kIGFsc28gc2VlbXMgbGlrZWx5IHRvIGxlYWQgdG8gYnVncy4KClRo ZXJlIGlzIG9ubHkgb25lIG5vbi1zZWxmLWV4Y2x1c2l2ZSBjb25kaXRpb25hbCBjb250ZW50IGxv Y2sgYWNxdWlzaXRpb24sIGluCkdldFZpY3RpbUJ1ZmZlcigpLCBidXQgaXQgb25seSBpcyB1c2Vk IGlmIHRoZSB0YXJnZXQgYnVmZmVyIGlzIG5vdCBwaW5uZWQgYW5kCnRodXMgY2FuJ3QgYWxyZWFk eSBiZSBsb2NrZWQgYnkgdGhlIGN1cnJlbnQgYmFja2VuZC4KClJlcG9ydGVkLWJ5OiBBbGV4YW5k ZXIgTGFraGluIDxleGNsdXNpb25AZ21haWwuY29tPgpEaXNjdXNzaW9uOiBodHRwczovL3Bvc3Rn ci5lcy9tLzkwYmQyY2JiLTQ5Y2UtNDA5Mi05ZjYxLTVhYzJhYjc4MmM5NEBnbWFpbC5jb20KCkJy YW5jaAotLS0tLS0KbWFzdGVyCgpEZXRhaWxzCi0tLS0tLS0KaHR0cHM6Ly9naXQucG9zdGdyZXNx bC5vcmcvcGcvY29tbWl0ZGlmZi8zMzNmNTg2MzcyYWFlNzY0YjdhZDdlMmM5NzViMTRmZDQzMWNl ODE5CgpNb2RpZmllZCBGaWxlcwotLS0tLS0tLS0tLS0tLQpzcmMvYmFja2VuZC9zdG9yYWdlL2J1 ZmZlci9idWZtZ3IuYyB8IDE0ICsrKysrKysrKysrKy0tCjEgZmlsZSBjaGFuZ2VkLCAxMiBpbnNl cnRpb25zKCspLCAyIGRlbGV0aW9ucygtKQoK --===============8059090322292869482==--