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+From: David Bremner <david@tethera.net>\r
+To: notmuch@notmuchmail.org\r
+Subject: [PATCH] notmuch-dump: use fsync instead of fdatasync\r
+Date: Thu, 8 May 2014 20:57:07 +0900\r
+Message-Id: <1399550227-18488-1-git-send-email-david@tethera.net>\r
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+\r
+Since the file size will have changed, there is no performance benefit\r
+to calling fdatasync. Somewhat surprisingly, using fdatasync\r
+apparently causes portability problems on FreeBSD.\r
+---\r
+ notmuch-dump.c | 2 +-\r
+ 1 file changed, 1 insertion(+), 1 deletion(-)\r
+\r
+diff --git a/notmuch-dump.c b/notmuch-dump.c\r
+index 2849eab..887a208 100644\r
+--- a/notmuch-dump.c\r
++++ b/notmuch-dump.c\r
+@@ -169,7 +169,7 @@ notmuch_database_dump (notmuch_database_t *notmuch,\r
+ }\r
+ \r
+ if (output_file_name) {\r
+- ret = fdatasync (outfd);\r
++ ret = fsync (outfd);\r
+ if (ret) {\r
+ fprintf (stderr, "Error syncing %s to disk: %s\n",\r
+ name_for_error, strerror (errno));\r
+-- \r
+1.9.2\r
+\r