From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adam Kwolek Subject: [PATCH 20/27] Detect level change Date: Mon, 06 Dec 2010 14:23:23 +0100 Message-ID: <20101206132323.21125.35827.stgit@gklab-170-024.igk.intel.com> References: <20101206131821.21125.65217.stgit@gklab-170-024.igk.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20101206131821.21125.65217.stgit@gklab-170-024.igk.intel.com> Sender: linux-raid-owner@vger.kernel.org To: neilb@suse.de Cc: linux-raid@vger.kernel.org, dan.j.williams@intel.com, ed.ciechanowski@intel.com List-Id: linux-raid.ids For level migration support it is necessary to allow mdmon to react for level changes. It has to have ability to change configuration of active array, and for array level change to raid0 finish array monitoring. Signed-off-by: Maciej Trela Signed-off-by: Adam Kwolek --- managemon.c | 12 +++++++++++- monitor.c | 2 +- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/managemon.c b/managemon.c index 2739c39..0f02f74 100644 --- a/managemon.c +++ b/managemon.c @@ -447,7 +447,17 @@ static void manage_member(struct mdstat_ent *mdstat, else frozen = 1; /* can't read metadata_version assume the worst */ - + if (mdstat->level) { + int level = map_name(pers, mdstat->level); + if (a->info.array.level != level && level >= 0) { + newa = duplicate_aa(a); + if (newa) { + newa->info.array.level = level; + replace_array(a->container, a, newa); + a = newa; + } + } + } if ((a->reshape_state != reshape_not_active) && (a->reshape_state != reshape_in_progress)) { diff --git a/monitor.c b/monitor.c index 5837b34..6385555 100644 --- a/monitor.c +++ b/monitor.c @@ -512,7 +512,7 @@ static int wait_and_act(struct supertype *container, int nowait) /* once an array has been deactivated we want to * ask the manager to discard it. */ - if (!a->container) { + if (!a->container || (a->info.array.level == 0)) { if (discard_this) { ap = &(*ap)->next; continue;