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authorJens Axboe <jaxboe@fusionio.com>2011-01-07 08:43:37 +0100
committerJens Axboe <jaxboe@fusionio.com>2011-01-07 08:43:37 +0100
commit6c23a9681c0fe7fb7dd331b39dda11926f43746e (patch)
treebf113a475a17faa866e7e59806378107dcb3aa40 /block
parent09e099d4bafea3b15be003d548bdf94b4b6e0e17 (diff)
block: add internal hd part table references
We can't use krefs since it's apparently restricted to very basic reference counting. This reverts commit e4a683c8. Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'block')
-rw-r--r--block/blk-core.c6
-rw-r--r--block/blk-merge.c2
-rw-r--r--block/genhd.c3
3 files changed, 6 insertions, 5 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index 500c080a6a6..2f4002f79a2 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -70,7 +70,7 @@ static void drive_stat_acct(struct request *rq, int new_io)
part_stat_inc(cpu, part, merges[rw]);
} else {
part = disk_map_sector_rcu(rq->rq_disk, blk_rq_pos(rq));
- if (!kref_test_and_get(&part->ref)) {
+ if (!hd_struct_try_get(part)) {
/*
* The partition is already being removed,
* the request will be accounted on the disk only
@@ -80,7 +80,7 @@ static void drive_stat_acct(struct request *rq, int new_io)
* it as any other partition.
*/
part = &rq->rq_disk->part0;
- kref_get(&part->ref);
+ hd_struct_get(part);
}
part_round_stats(cpu, part);
part_inc_in_flight(part, rw);
@@ -1818,7 +1818,7 @@ static void blk_account_io_done(struct request *req)
part_round_stats(cpu, part);
part_dec_in_flight(part, rw);
- kref_put(&part->ref, __delete_partition);
+ hd_struct_put(part);
part_stat_unlock();
}
}
diff --git a/block/blk-merge.c b/block/blk-merge.c
index b06b83b89d8..00b7d31b38a 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -356,7 +356,7 @@ static void blk_account_io_merge(struct request *req)
part_round_stats(cpu, part);
part_dec_in_flight(part, rq_data_dir(req));
- kref_put(&part->ref, __delete_partition);
+ hd_struct_put(part);
part_stat_unlock();
}
}
diff --git a/block/genhd.c b/block/genhd.c
index 85c15059883..399d37ec741 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1192,7 +1192,8 @@ struct gendisk *alloc_disk_node(int minors, int node_id)
return NULL;
}
disk->part_tbl->part[0] = &disk->part0;
- kref_init(&disk->part0.ref);
+
+ hd_ref_init(&disk->part0);
disk->minors = minors;
rand_initialize_disk(disk);