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Signed-off-by: Yang Yang --- drivers/md/dm-table.c | 16 ++++++++++++++++ include/linux/device-mapper.h | 1 + 2 files changed, 17 insertions(+) diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index bd68af10afed..4817ddb660c4 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -2134,6 +2134,13 @@ void dm_table_postsuspend_targets(struct dm_table *t) suspend_targets(t, POSTSUSPEND); } +static int dm_link_dev_to_target(struct dm_target *ti, struct dm_dev *dev, + sector_t start, sector_t len, void *data) +{ + dev->ti = ti; + return 0; +} + int dm_table_resume_targets(struct dm_table *t) { unsigned int i; @@ -2162,6 +2169,15 @@ int dm_table_resume_targets(struct dm_table *t) ti->type->resume(ti); } + if (t->flush_pass_around) { + for (i = 0; i < t->num_targets; i++) { + struct dm_target *ti = dm_table_get_target(t, i); + + if (ti->type->iterate_devices) + ti->type->iterate_devices(ti, dm_link_dev_to_target, NULL); + } + } + return 0; } diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 0893ff8c01b6..2696d1a8b542 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -169,6 +169,7 @@ struct dm_dev { struct dax_device *dax_dev; blk_mode_t mode; char name[16]; + struct dm_target *ti }; /*