diff options
| -rw-r--r-- | drivers/md/dm-table.c | 17 | ||||
| -rw-r--r-- | drivers/md/dm.c | 4 | ||||
| -rw-r--r-- | drivers/md/dm.h | 2 | ||||
| -rw-r--r-- | include/linux/device-mapper.h | 2 | ||||
| -rw-r--r-- | include/linux/dm-ioctl.h | 4 |
5 files changed, 23 insertions, 6 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 75fe9493e6a..47412ae98fb 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -939,9 +939,20 @@ void dm_table_postsuspend_targets(struct dm_table *t) return suspend_targets(t, 1); } -void dm_table_resume_targets(struct dm_table *t) +int dm_table_resume_targets(struct dm_table *t) { - int i; + int i, r = 0; + + for (i = 0; i < t->num_targets; i++) { + struct dm_target *ti = t->targets + i; + + if (!ti->type->preresume) + continue; + + r = ti->type->preresume(ti); + if (r) + return r; + } for (i = 0; i < t->num_targets; i++) { struct dm_target *ti = t->targets + i; @@ -949,6 +960,8 @@ void dm_table_resume_targets(struct dm_table *t) if (ti->type->resume) ti->type->resume(ti); } + + return 0; } int dm_table_any_congested(struct dm_table *t, int bdi_bits) diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 883860c3565..aeb63a3ac33 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1360,7 +1360,9 @@ int dm_resume(struct mapped_device *md) if (!map || !dm_table_get_size(map)) goto out; - dm_table_resume_targets(map); + r = dm_table_resume_targets(map); + if (r) + goto out; down_write(&md->io_lock); clear_bit(DMF_BLOCK_IO, &md->flags); diff --git a/drivers/md/dm.h b/drivers/md/dm.h index fe701c4834f..a48ec5e3c1f 100644 --- a/drivers/md/dm.h +++ b/drivers/md/dm.h @@ -57,7 +57,7 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q); struct list_head *dm_table_get_devices(struct dm_table *t); void dm_table_presuspend_targets(struct dm_table *t); void dm_table_postsuspend_targets(struct dm_table *t); -void dm_table_resume_targets(struct dm_table *t); +int dm_table_resume_targets(struct dm_table *t); int dm_table_any_congested(struct dm_table *t, int bdi_bits); void dm_table_unplug_all(struct dm_table *t); int dm_table_flush_all(struct dm_table *t); diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index d44a99650af..8cbc46b8e3d 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -57,6 +57,7 @@ typedef int (*dm_endio_fn) (struct dm_target *ti, typedef void (*dm_presuspend_fn) (struct dm_target *ti); typedef void (*dm_postsuspend_fn) (struct dm_target *ti); +typedef int (*dm_preresume_fn) (struct dm_target *ti); typedef void (*dm_resume_fn) (struct dm_target *ti); typedef int (*dm_status_fn) (struct dm_target *ti, status_type_t status_type, @@ -92,6 +93,7 @@ struct target_type { dm_endio_fn end_io; dm_presuspend_fn presuspend; dm_postsuspend_fn postsuspend; + dm_preresume_fn preresume; dm_resume_fn resume; dm_status_fn status; dm_message_fn message; diff --git a/include/linux/dm-ioctl.h b/include/linux/dm-ioctl.h index b349b768df3..f28b5c87aa6 100644 --- a/include/linux/dm-ioctl.h +++ b/include/linux/dm-ioctl.h @@ -285,9 +285,9 @@ typedef char ioctl_struct[308]; #define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl) #define DM_VERSION_MAJOR 4 -#define DM_VERSION_MINOR 8 +#define DM_VERSION_MINOR 9 #define DM_VERSION_PATCHLEVEL 0 -#define DM_VERSION_EXTRA "-ioctl (2006-06-24)" +#define DM_VERSION_EXTRA "-ioctl (2006-09-14)" /* Status bits */ #define DM_READONLY_FLAG (1 << 0) /* In/Out */ |