From: Neil Brown <neilb@suse.de>
Date: Sun, 4 Feb 2007 21:57:36 +0000 (+1100)
Subject: Never set flushtime for a cache in the future.
X-Git-Tag: nfs-utils-1-0-11~30
X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=commitdiff_plain;h=2e0b281cbebd6624c2673f5e6822f85df698f273

Never set flushtime for a cache in the future.

If 'etab' happens to have a timestamp in the future, this will get
copied to the flush-time for various caches,  and no exports will
work until that time arrives.  So clamp the flushtime to 'now'.
---

diff --git a/support/nfs/cacheio.c b/support/nfs/cacheio.c
index 36473cf..a4bfedb 100644
--- a/support/nfs/cacheio.c
+++ b/support/nfs/cacheio.c
@@ -247,6 +247,7 @@ cache_flush(int force)
 	int c;
 	char stime[20];
 	char path[200];
+	time_t now;
 	/* Note: the order of these caches is important.
 	 * The need to be flushed in dependancy order. So
 	 * a cache that references items in another cache,
@@ -259,8 +260,10 @@ cache_flush(int force)
 		"nfsd.export",
 		NULL
 	};
+	now = time(0);
 	if (force ||
-	    stat(_PATH_ETAB, &stb) != 0)
+	    stat(_PATH_ETAB, &stb) != 0 ||
+	    stb.st_mtime > now)
 		stb.st_mtime = time(0);
 	
 	sprintf(stime, "%ld\n", stb.st_mtime);