Staging: hv: storvsc: Get rid of final_release_stor_device() by inlining code
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>
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@ -67,22 +67,6 @@ static inline struct storvsc_device *get_in_stor_device(
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return stor_device;
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}
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/* Drop ref count to 0. No one can use stor_device object. */
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static inline struct storvsc_device *final_release_stor_device(
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struct hv_device *device)
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{
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struct storvsc_device *stor_device;
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stor_device = (struct storvsc_device *)device->ext;
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/* Busy wait until the ref drop to 1, then set it to 0 */
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while (atomic_cmpxchg(&stor_device->ref_count, 1, 0) != 1)
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udelay(100);
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device->ext = NULL;
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return stor_device;
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}
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static int storvsc_channel_init(struct hv_device *device)
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{
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struct storvsc_device *stor_device;
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@ -401,7 +385,12 @@ int storvsc_dev_remove(struct hv_device *device)
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storvsc_wait_to_drain(stor_device);
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stor_device = final_release_stor_device(device);
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/*
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* Since we have already drained, we don't need to busy wait
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* as was done in final_release_stor_device()
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*/
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atomic_set(&stor_device->ref_count, 0);
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device->ext = NULL;
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/* Close the channel */
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vmbus_close(device->channel);
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