On Fri, Nov 23, 2018 at 01:47:32PM +0300, Kirill A. Shutemov wrote:
> On Thu, Nov 22, 2018 at 01:32:23PM -0800, Matthew Wilcox wrote:
> > After we establish a reference on the page, we check the pointer continues
> > to be in the correct position in i_pages. There's no need to check the
> > page->
On Thu, Nov 22, 2018 at 01:32:23PM -0800, Matthew Wilcox wrote:
> After we establish a reference on the page, we check the pointer continues
> to be in the correct position in i_pages. There's no need to check the
> page->mapping or page->index afterwards; if those can change after we've
> got the
After we establish a reference on the page, we check the pointer continues
to be in the correct position in i_pages. There's no need to check the
page->mapping or page->index afterwards; if those can change after we've
got the reference, they can change after we return the page to the caller.
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