[Devel] [PATCH rh7] ms/epoll: Make fdinfo to always success

[Cyrill Gorcunov]

It is a diet backport of vanilla's

ML: a3816ab0e8fe542a89a53b82506a8ddac063fbe3

which allows to disaply a large numbers of inotify assigned.
Otherwise only ones fit to 4K buffer would be shown.

Reported-by: Pavel Emelyanov <xemul at parallels.com>
Signed-off-by: Cyrill Gorcunov <gorcunov at virtuozzo.com>
CC: Konstantin Khorenko <khorenko at virtuozzo.com>
---
 fs/eventpoll.c |   12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

Index: linux-pcs7.git/fs/eventpoll.c
===================================================================
--- linux-pcs7.git.orig/fs/eventpoll.c
+++ linux-pcs7.git/fs/eventpoll.c
@@ -874,21 +874,19 @@ static int ep_show_fdinfo(struct seq_fil
 {
 	struct eventpoll *ep = f->private_data;
 	struct rb_node *rbp;
-	int ret = 0;
 
 	mutex_lock(&ep->mtx);
 	for (rbp = rb_first(&ep->rbr); rbp; rbp = rb_next(rbp)) {
 		struct epitem *epi = rb_entry(rbp, struct epitem, rbn);
 
-		ret = seq_printf(m, "tfd: %8d events: %8x data: %16llx\n",
-				 epi->ffd.fd, epi->event.events,
-				 (long long)epi->event.data);
-		if (ret)
+		seq_printf(m, "tfd: %8d events: %8x data: %16llx\n",
+			   epi->ffd.fd, epi->event.events,
+			   (long long)epi->event.data);
+		if (m->count == m->size)
 			break;
 	}
 	mutex_unlock(&ep->mtx);
-
-	return ret;
+	return 0;
 }
 #endif