Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1k6zu1-0004vS-5L for pgsql-committers@arkaria.postgresql.org; Sat, 15 Aug 2020 17:23:33 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1k6ztw-0002cN-79 for pgsql-committers@arkaria.postgresql.org; Sat, 15 Aug 2020 17:23:28 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1k6zqu-0008RF-6V for pgsql-committers@lists.postgresql.org; Sat, 15 Aug 2020 17:20:20 +0000 Received: from mahout.postgresql.org ([2001:4800:3e1:1::227]) by magus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1k6zqr-0008NX-Dv for pgsql-committers@lists.postgresql.org; Sat, 15 Aug 2020 17:20:19 +0000 Received: from gemulon.postgresql.org ([2001:4800:3e1:1::198]) by mahout.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1k6zqp-0000hg-Er for pgsql-committers@lists.postgresql.org; Sat, 15 Aug 2020 17:20:15 +0000 Received: from localhost ([127.0.0.1] helo=gemulon.postgresql.org) by gemulon.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1k6zqo-0008VD-W7 for pgsql-committers@lists.postgresql.org; Sat, 15 Aug 2020 17:20:14 +0000 Content-Type: multipart/mixed; boundary="===============8231719434086743383==" MIME-Version: 1.0 From: Noah Misch To: pgsql-committers@lists.postgresql.org Subject: pgsql: Prevent concurrent SimpleLruTruncate() for any given SLRU. X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Sat, 15 Aug 2020 17:20:14 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk --===============8231719434086743383== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 UHJldmVudCBjb25jdXJyZW50IFNpbXBsZUxydVRydW5jYXRlKCkgZm9yIGFueSBnaXZlbiBTTFJV LgoKVGhlIFNpbXBsZUxydVRydW5jYXRlKCkgaGVhZGVyIGNvbW1lbnQgc3RhdGVzIHRoZSBuZXcg Y29kaW5nIHJ1bGUuICBUbwphY2hpZXZlIHRoaXMsIGFkZCBsb2NrdHlwZSAiZnJvemVuaWQiIGFu ZCB0d28gTFdMb2Nrcy4gIFRoaXMgY2xvc2VzIGEKcmFyZSBvcHBvcnR1bml0eSBmb3IgZGF0YSBs b3NzLCB3aGljaCBtYW5pZmVzdGVkIGFzICJhcHBhcmVudAp3cmFwYXJvdW5kIiBvciAiY291bGQg bm90IGFjY2VzcyBzdGF0dXMgb2YgdHJhbnNhY3Rpb24iIGVycm9ycy4gIERhdGEKbG9zcyBpcyBt b3JlIGxpa2VseSBpbiBwZ19tdWx0aXhhY3QsIGR1ZSB0byByZWxlYXNlZCBicmFuY2hlcycgdGhp bgptYXJnaW4gYmV0d2VlbiBtdWx0aVN0b3BMaW1pdCBhbmQgbXVsdGlXcmFwTGltaXQuICBJZiBh IHVzZXIncyBwaHlzaWNhbApyZXBsaWNhdGlvbiBwcmltYXJ5IGxvZ2dlZCAiOiAgYXBwYXJlbnQg d3JhcGFyb3VuZCIgbWVzc2FnZXMsIHRoZSB1c2VyCnNob3VsZCByZWJ1aWxkIHN0YW5kYnlzIG9m IHRoYXQgcHJpbWFyeSByZWdhcmRsZXNzIG9mIHN5bXB0b21zLiAgQXQgbGVzcwpyaXNrIGlzIGEg Y2x1c3RlciBoYXZpbmcgZW1pdHRlZCAibm90IGFjY2VwdGluZyBjb21tYW5kcyIgZXJyb3JzIG9y CiJtdXN0IGJlIHZhY3V1bWVkIiB3YXJuaW5ncyBhdCBzb21lIHBvaW50LiAgT25lIGNhbiB0ZXN0 IGEgY2x1c3RlciBmb3IKdGhpcyBkYXRhIGxvc3MgYnkgcnVubmluZyBWQUNVVU0gRlJFRVpFIGlu IGV2ZXJ5IGRhdGFiYXNlLiAgQmFjay1wYXRjaAp0byA5LjUgKGFsbCBzdXBwb3J0ZWQgdmVyc2lv bnMpLgoKRGlzY3Vzc2lvbjogaHR0cHM6Ly9wb3N0Z3IuZXMvbS8yMDE5MDIxODA3MzEwMy5HQTE0 MzQ3MjNAcmZkLmxlYWRib2F0LmNvbQoKQnJhbmNoCi0tLS0tLQpSRUxfMTBfU1RBQkxFCgpEZXRh aWxzCi0tLS0tLS0KaHR0cHM6Ly9naXQucG9zdGdyZXNxbC5vcmcvcGcvY29tbWl0ZGlmZi9lNTI1 NzcwZGQ1MDRlNWYxODIyMjliOWJlZTY0NDMwZWJlNzFhMmE4CgpNb2RpZmllZCBGaWxlcwotLS0t LS0tLS0tLS0tLQpkb2Mvc3JjL3NnbWwvY2F0YWxvZ3Muc2dtbCAgICAgICAgICAgICAgIHwgIDQg KysrLQpkb2Mvc3JjL3NnbWwvbW9uaXRvcmluZy5zZ21sICAgICAgICAgICAgIHwgMjAgKysrKysr KysrKysrKysrLS0Kc3JjL2JhY2tlbmQvYWNjZXNzL3RyYW5zYW0vc2xydS5jICAgICAgICB8ICA4 ICsrKysrKysKc3JjL2JhY2tlbmQvYWNjZXNzL3RyYW5zYW0vc3VidHJhbnMuYyAgICB8ICA0ICsr LS0Kc3JjL2JhY2tlbmQvY29tbWFuZHMvYXN5bmMuYyAgICAgICAgICAgICB8IDM3ICsrKysrKysr KysrKysrKysrKysrKysrLS0tLS0tLS0tCnNyYy9iYWNrZW5kL2NvbW1hbmRzL3ZhY3V1bS5jICAg ICAgICAgICAgfCAxMyArKysrKysrKysrKwpzcmMvYmFja2VuZC9zdG9yYWdlL2xtZ3IvbG1nci5j ICAgICAgICAgIHwgMjAgKysrKysrKysrKysrKysrKysKc3JjL2JhY2tlbmQvc3RvcmFnZS9sbWdy L2x3bG9jay5jICAgICAgICB8ICAyICstCnNyYy9iYWNrZW5kL3N0b3JhZ2UvbG1nci9sd2xvY2tu YW1lcy50eHQgfCAgMiArKwpzcmMvYmFja2VuZC91dGlscy9hZHQvbG9ja2Z1bmNzLmMgICAgICAg IHwgMTIgKysrKysrKysrKysKc3JjL2luY2x1ZGUvc3RvcmFnZS9sbWdyLmggICAgICAgICAgICAg ICB8ICAzICsrKwpzcmMvaW5jbHVkZS9zdG9yYWdlL2xvY2suaCAgICAgICAgICAgICAgIHwgMTAg KysrKysrKysrCjEyIGZpbGVzIGNoYW5nZWQsIDExOSBpbnNlcnRpb25zKCspLCAxNiBkZWxldGlv bnMoLSkKCg== --===============8231719434086743383==--