From: Philipp Reisner <philipp.reisner@linbit.com>
Date: Mon, 10 May 2010 14:42:23 +0000 (+0200)
Subject: drbd: If we detect late that IO got frozen, retry after we thawed.
X-Git-Tag: v2.6.35-rc1~442^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9a25a04c8079725c1b1ab756694a8e0757844b40;p=pandora-kernel.git

drbd: If we detect late that IO got frozen, retry after we thawed.

If we detect late (= after grabing mdev->req_lock) that IO got frozen, we
return 1 to generic_make_request(), which simply will retry to make a
request for that bio.

In the subsequent call of generic_make_request() into drbd_make_request_26()
we sleep in inc_ap_bio().

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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