+++ This bug was initially created as a clone of Bug #247877 +++ write_callback is in dm-raid1.c is called when an I/O completes. It calls spin_lock(&ms->lock). Since write_callback could be called from either process or interrupt context, we need to use spin_lock_irqsave(). This becomes especially important when we want to layer dm-targets that might call bio_endio from process context.
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
since the patch was posted after 4.6 kernel freeze, this patch requires justfication to bring into 4.6 after the deadline. Please provide bussiness or technical justification and set either blocker or exception flag below to "?" for 4.6 consideration.
okay.. move to 4.7. please provide bus./tech. justification for 4.6 inclusion if need to.
Committed in 68.8
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2008-0665.html