提交 7b51f478 编写于 作者: T Tejun Heo 提交者: Linus Torvalds

memstick: convert to idr_alloc()

Convert to the much saner new idr interface.
Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: Alex Dubov <oakad@yahoo.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 c9d76be6
......@@ -512,18 +512,17 @@ int memstick_add_host(struct memstick_host *host)
{
int rc;
while (1) {
if (!idr_pre_get(&memstick_host_idr, GFP_KERNEL))
return -ENOMEM;
idr_preload(GFP_KERNEL);
spin_lock(&memstick_host_lock);
rc = idr_get_new(&memstick_host_idr, host, &host->id);
rc = idr_alloc(&memstick_host_idr, host, 0, 0, GFP_NOWAIT);
if (rc >= 0)
host->id = rc;
spin_unlock(&memstick_host_lock);
if (!rc)
break;
else if (rc != -EAGAIN)
idr_preload_end();
if (rc < 0)
return rc;
}
dev_set_name(&host->dev, "memstick%u", host->id);
......
......@@ -1213,21 +1213,10 @@ static int mspro_block_init_disk(struct memstick_dev *card)
msb->page_size = be16_to_cpu(sys_info->unit_size);
mutex_lock(&mspro_block_disk_lock);
if (!idr_pre_get(&mspro_block_disk_idr, GFP_KERNEL)) {
disk_id = idr_alloc(&mspro_block_disk_idr, card, 0, 256, GFP_KERNEL);
mutex_unlock(&mspro_block_disk_lock);
return -ENOMEM;
}
rc = idr_get_new(&mspro_block_disk_idr, card, &disk_id);
mutex_unlock(&mspro_block_disk_lock);
if (rc)
return rc;
if ((disk_id << MSPRO_BLOCK_PART_SHIFT) > 255) {
rc = -ENOSPC;
goto out_release_id;
}
if (disk_id < 0)
return disk_id;
msb->disk = alloc_disk(1 << MSPRO_BLOCK_PART_SHIFT);
if (!msb->disk) {
......
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