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Staging: hv: storvsc: Get rid of final_release_stor_device() by inlining code

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Get rid of final_release_stor_device() by inlining code.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
K. Y. Srinivasan
2011-08-27 11:31:08 -07:00
committed by Greg Kroah-Hartman
parent c352ee8f61
commit a5b2359b05
1 changed files with 6 additions and 17 deletions
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23
drivers/staging/hv/storvsc.c
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@@ -67,22 +67,6 @@ static inline struct storvsc_device *get_in_stor_device(
return stor_device; return stor_device;
} }
/* Drop ref count to 0. No one can use stor_device object. */
static inline struct storvsc_device *final_release_stor_device(
struct hv_device *device)
{
struct storvsc_device *stor_device;
stor_device = (struct storvsc_device *)device->ext;
/* Busy wait until the ref drop to 1, then set it to 0 */
while (atomic_cmpxchg(&stor_device->ref_count, 1, 0) != 1)
udelay(100);
device->ext = NULL;
return stor_device;
}
static int storvsc_channel_init(struct hv_device *device) static int storvsc_channel_init(struct hv_device *device)
{ {
struct storvsc_device *stor_device; struct storvsc_device *stor_device;
@@ -401,7 +385,12 @@ int storvsc_dev_remove(struct hv_device *device)
storvsc_wait_to_drain(stor_device); storvsc_wait_to_drain(stor_device);
stor_device = final_release_stor_device(device); /*
* Since we have already drained, we don't need to busy wait
* as was done in final_release_stor_device()
*/
atomic_set(&stor_device->ref_count, 0);
device->ext = NULL;
/* Close the channel */ /* Close the channel */
vmbus_close(device->channel); vmbus_close(device->channel);