Re: [PATCH v2] new: Don't scan unchanged directories with no sub-directories

diff --git a/6c/08658285502932ec6f24ad2581f2d2245b73ad b/6c/08658285502932ec6f24ad2581f2d2245b73ad
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+From: David Bremner <david@tethera.net>\r
+To: Austin Clements <amdragon@MIT.EDU>, notmuch@notmuchmail.org\r
+Subject: Re: [PATCH v2] new: Don't scan unchanged directories with no\r
+       sub-directories\r
+In-Reply-To: <1382650739-12438-1-git-send-email-amdragon@mit.edu>\r
+References: <20131024210837.GH20337@mit.edu>\r
+       <1382650739-12438-1-git-send-email-amdragon@mit.edu>\r
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+Date: Mon, 28 Oct 2013 17:00:19 -0300\r
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+Austin Clements <amdragon@MIT.EDU> writes:\r
+\r
+> This can substantially reduce the cost of notmuch new in some\r
+> situations, such as when the file system cache is cold or when the\r
+> Maildir is on NFS.\r
+> ---\r
+\r
+pushed as commit 516efb7807\r
+\r
+d\r