[PATCH 12/17] mm: optimize dev_pagemap reference counting around get_dev_pagemap

Change the calling convention so that get_dev_pagemap always consumes the previous reference instead of doing this using an explicit earlier call to put_dev_pagemap in the callers. The callers will still need to put the final reference after finishing the loop over the pages. Signed-off-by:

Re: [PATCH 12/17] mm: optimize dev_pagemap reference counting around get_dev_pagemap

On Fri, Dec 15, 2017 at 6:09 AM, Christoph Hellwig wrote: > Change the calling convention so that get_dev_pagemap always consumes the > previous reference instead of doing this using an explicit earlier call to > put_dev_pagemap in the callers. > > The callers will still need to put

[PATCH 12/17] mm: optimize dev_pagemap reference counting around get_dev_pagemap

Change the calling convention so that get_dev_pagemap always consumes the previous reference instead of doing this using an explicit earlier call to put_dev_pagemap in the callers. The callers will still need to put the final reference after finishing the loop over the pages. Signed-off-by: