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FromDavid Howells <>
SubjectRe: [PATCH 05/45] FS-Cache: Release page->private after failed readahead [ver #41]
DateFri, 21 Nov 2008 10:27:09 +0000
Andrew Morton <akpm@linux-foundation.org> wrote:

> > +		if (TestSetPageLocked(page))> > This got obsoleted by trylock_page().> > I don't remember why, actually.

trylock_page() throws memory barriers in there on, say, PowerPC.  That's
probably necessary.

David


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