From: Simon Peter <simon.peter@gmx.de>
Date: Tue, 13 Mar 2007 04:19:24 +0000 (+1100)
Subject: Use very long timeout for information in the filehandle->path cache.
X-Git-Tag: nfs-utils-1-1-0-rc1~85
X-Git-Url: https://git.decadent.org.uk/gitweb/?a=commitdiff_plain;h=b1e1c8a05afdbbc3f217ef79c31c3b8ca302f9eb;p=nfs-utils.git

Use very long timeout for information in the filehandle->path cache.

	/* The fsid -> path lookup can be quite expensive as it
	 * potentially stats and reads lots of devices, and some of those
	 * might have spun-down.  The Answer is not likely to
	 * change underneath us, and an 'exportfs -f' can always
	 * remove this from the kernel, so use a really log
	 * timeout.  Maybe this should be configurable on the command
	 * line.
	 */

Signed-off-by: Neil Brown <neilb@suse.de>
---

diff --git a/utils/mountd/cache.c b/utils/mountd/cache.c
index fbe829e..4693216 100644
--- a/utils/mountd/cache.c
+++ b/utils/mountd/cache.c
@@ -413,7 +413,15 @@ void nfsd_fh(FILE *f)
 	qword_print(f, dom);
 	qword_printint(f, fsidtype);
 	qword_printhex(f, fsid, fsidlen);
-	qword_printint(f, time(0)+30*60);
+	/* The fsid -> path lookup can be quite expensive as it
+	 * potentially stats and reads lots of devices, and some of those
+	 * might have spun-down.  The Answer is not likely to
+	 * change underneath us, and an 'exportfs -f' can always
+	 * remove this from the kernel, so use a really log
+	 * timeout.  Maybe this should be configurable on the command
+	 * line.
+	 */
+	qword_printint(f, 0x7fffffff);
 	if (found)
 		qword_print(f, found->e_path);
 	qword_eol(f);