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authorNeilBrown <neilb@suse.de>2010-07-26 11:49:55 +1000
committerNeilBrown <neilb@suse.de>2010-07-26 12:52:27 +1000
commit768a418db102bb6aa6064e6090892b5c21ff1f9e (patch)
tree2f33acbf0ca542f43c8014201b539ae8f461ee5c /drivers/md
parent390ee602a142a93f2c7eb7bffee8e277058b8e0a (diff)
downloadlinux-768a418db102bb6aa6064e6090892b5c21ff1f9e.tar.bz2
md: add support for raising dm events.
dm uses scheduled work to raise events to user-space. So allow md device to have work_structs and schedule them on an error. Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/md.c2
-rw-r--r--drivers/md/md.h1
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 012482a900fc..f8775699e15a 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -6068,6 +6068,8 @@ void md_error(mddev_t *mddev, mdk_rdev_t *rdev)
set_bit(MD_RECOVERY_INTR, &mddev->recovery);
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
md_wakeup_thread(mddev->thread);
+ if (mddev->event_work.func)
+ schedule_work(&mddev->event_work);
md_new_event_inintr(mddev);
}
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 6e7e3495f6e4..c88b04745e85 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -318,6 +318,7 @@ struct mddev_s
struct bio *barrier;
atomic_t flush_pending;
struct work_struct barrier_work;
+ struct work_struct event_work; /* used by dm to report failure event */
};