Messages in this thread | | | Subject | Re: Yet another borken page_count() check in invalidate_inode_pages2().... | From | Trond Myklebust <> | Date | Wed, 15 Nov 2006 15:57:45 -0500 |
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On Wed, 2006-11-15 at 11:24 -0800, Andrew Morton wrote:
> The protocol is > > lock_page() > set_page_writeback() > ->writepage()
We're not using ->writepage().
> and there are various places which assume that nobody will start new > writeout of a locked page. But I forget where they are - things have always > been this way.
Huh? There has never been a requirement to lock the page if all you want to do is call set_page_writeback(). The only reason why we want to do that at all is to allow the VM to track that the page is under I/O. All other operations involved in scheduling writes are protected by internal NFS locks. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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