| commit | 9a25a04c8079725c1b1ab756694a8e0757844b40 | |
| author | Philipp Reisner <philipp.reisner@linbit.com> | |
| Mon, 10 May 2010 14:42:23 +0000 (10 16:42 +0200) | ||
| committer | Philipp Reisner <philipp.reisner@linbit.com> | |
| Tue, 18 May 2010 00:03:32 +0000 (18 02:03 +0200) | ||
| tree | ed8fbbbbd7cb4db7d77531bcd2c046f5bd0170c1 | treesnapshot (tar.gz zip) |
| parent | a1c88d0d7aa2ef427f78834c9a3b0a673a19dca6 | commitdiff |
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>
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>
| drivers/block/drbd/drbd_int.h | diffblobblamehistory | |
| drivers/block/drbd/drbd_req.c | diffblobblamehistory |