David Howells wrote:
Add a function to install a monitor on the page lock waitqueue for a particular page, thus allowing the page being unlocked to be detected. This is used by CacheFiles to detect read completion on a page in the backing filesystem so that it can then copy the data to the waiting netfs page. Signed-off-by: David Howells <dhowells@xxxxxxxxxx> Acked-by: Steve Dickson <steved@xxxxxxxxxx> Acked-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
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