dovecot-1.1: Removed "die after 3 EINTR write() failures to log".

[dovecot at dovecot.org]

details:   http://hg.dovecot.org/dovecot-1.1/rev/27a0fd89e181
changeset: 8369:27a0fd89e181
user:      Timo Sirainen <tss at iki.fi>
date:      Wed Sep 15 18:42:58 2010 +0100
description:
Removed "die after 3 EINTR write() failures to log".
This can happen with a busy master process that is receiving a lot of
SIGCHLD signals rapidly while trying to log.

diffstat:

 src/lib/failures.c |  5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diffs (23 lines):

diff -r 3fdeac838172 -r 27a0fd89e181 src/lib/failures.c
--- a/src/lib/failures.c	Wed Aug 18 15:17:40 2010 +0100
+++ b/src/lib/failures.c	Wed Sep 15 18:42:58 2010 +0100
@@ -82,7 +82,6 @@
 	struct ioloop *ioloop;
 	struct io *io;
 	ssize_t ret;
-	unsigned int eintr_count = 0;
 
 	while ((ret = write(fd, data, len)) != (ssize_t)len) {
 		if (ret > 0) {
@@ -96,9 +95,9 @@
 			errno = ENOSPC;
 			return -1;
 		}
-		if (errno == EINTR && ++eintr_count < 3) {
+		if (errno == EINTR) {
 			/* we don't want to die because of this.
-			   try again a couple of times. */
+			   especially SIGCHLD signals can be coming rapidly. */
 			continue;
 		}
 		if (errno != EAGAIN)