Re: [PATCH] VM: Fix the gfp_mask in invalidate_complete_page2

From: Trond Myklebust
Date: Tue Oct 10 2006 - 08:27:26 EST


On Tue, 2006-10-10 at 08:18 -0400, Steve Dickson wrote:
>
> Trond Myklebust wrote:
> >
> > No. Invalidatepage does precisely the wrong thing: it invalidates dirty
> > data instead of committing it to disk. If you need to have the data
> > invalidated, then you should call truncate_inode_pages().
> Just curious... would it make sense to call truncate_inode_pages()
> to purge the the readdir cache? Meaning, in nfs_revalidate_mapping()
> truncate_inode_pages() would be called for S_ISDIR inodes?

Why? If, as in the case of an NFS directory, there are no dirty pages
then the two are supposed to be 100% equivalent.

Trond
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