From 3b35c10a4d503a64a6bc110de3330a337bc1a362 Mon Sep 17 00:00:00 2001 From: Michael Paquier Date: Thu, 30 Apr 2026 18:44:45 +0900 Subject: [PATCH] Fix errno check based on EINTR in pg_flush_data() Upon a failure of sync_file_range(), EINTR was checked based on the returned result of the routine rather than its errno. sync_file_range() returns -1 on failure, making the check a no-op, invalidating the retry attempt in this case. Oversight in 0d369ac65004. Author: DaeMyung Kang Discussion: https://postgr.es/m/20260429151811.1810874-1-charsyam@gmail.com Backpatch-through: 16 --- src/backend/storage/file/fd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/backend/storage/file/fd.c b/src/backend/storage/file/fd.c index b54c42d9f84..bf331867457 100644 --- a/src/backend/storage/file/fd.c +++ b/src/backend/storage/file/fd.c @@ -516,7 +516,7 @@ retry: { int elevel; - if (rc == EINTR) + if (errno == EINTR) goto retry; /*