Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote: > > PG_fscache is going to be used to indicate that a page is being written to > > the cache, and that the page should not be modified or released until it's > > finished. > > > > Make afs_invalidatepage() and afs_releasepage() wait for it. > > Well, why? Keeping a refcount on the page will prevent it from going > away while it's being written to storage. And the fact that it's > being written to this cache is no reason to delay the truncate of a file > (is it?) Won't that screw up ITER_MAPPING? Does that mean that ITER_MAPPING isn't viable? David
