From: Mark Kogan <mkogan@ibm.com>
Date: Mon, 15 Sep 2025 13:09:00 +0000 (+0000)
Subject: rgw/d4n: change cache write ::open() flags
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F65528%2Fhead;p=ceph.git

rgw/d4n: change cache write ::open() flags

changing the default flags to O_DSYNC
a small performance improvement is observable

Signed-off-by: Mark Kogan <mkogan@ibm.com>
---

diff --git a/src/common/options/rgw.yaml.in b/src/common/options/rgw.yaml.in
index ffec3bacb24..6ab18332f5f 100644
--- a/src/common/options/rgw.yaml.in
+++ b/src/common/options/rgw.yaml.in
@@ -3932,8 +3932,11 @@ options:
   long_desc: For example, to configure synchronized I/O, fcntl-linux.h defines (converted from octal)
     O_SYNC = 1052672
     O_DSYNC = 4096
+    O_DIRECT = 16384
+    O_SYNC | O_DIRECT = 1118208
+    O_DSYNC | O_DIRECT = 65552
     (0 for no modification of the flags)
-  default: 1052672
+  default: 4096
   services:
   - rgw
   with_legacy: true