From: Timo Sirainen <tss@iki.fi>
Date: Tue, 13 Oct 2015 10:44:48 +0000 (+0300)
Subject: auth: passwd-file now stat()s the file max once per second.
X-Git-Tag: 2.2.20.rc1~156
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fb1927dad988a34040afe4a1e51a5dbe3c085c8f;p=thirdparty%2Fdovecot%2Fcore.git

auth: passwd-file now stat()s the file max once per second.
It's quite unnecessary to do it more often.
---

diff --git a/src/auth/db-passwd-file.c b/src/auth/db-passwd-file.c
index 30e604d58b..8ebfaca75e 100644
--- a/src/auth/db-passwd-file.c
+++ b/src/auth/db-passwd-file.c
@@ -13,6 +13,7 @@
 #include "hash.h"
 #include "str.h"
 #include "eacces-error.h"
+#include "ioloop.h"
 
 #include <unistd.h>
 #include <fcntl.h>
@@ -261,6 +262,10 @@ static int passwd_file_sync(struct auth_request *request,
 	struct stat st;
 	const char *error;
 
+	if (pw->last_sync_time == ioloop_time)
+		return 0;
+	pw->last_sync_time = ioloop_time;
+
 	if (stat(pw->path, &st) < 0) {
 		/* with variables don't give hard errors, or errors about
 		   nonexistent files */
diff --git a/src/auth/db-passwd-file.h b/src/auth/db-passwd-file.h
index 54e1ee24af..a137ee17e1 100644
--- a/src/auth/db-passwd-file.h
+++ b/src/auth/db-passwd-file.h
@@ -20,6 +20,7 @@ struct passwd_file {
 	pool_t pool;
 	int refcount;
 
+	time_t last_sync_time;
 	char *path;
 	time_t stamp;
 	off_t size;