On Thu, 1 Mar 2012 12:04:04 +0100 Jan Kara <jack@xxxxxxx> wrote: > > iirc, the way I "grabbed" the page was to actually lock it, with > > [try_]_lock_page(). And unlock it again way over within the writeback > > thread. I forget why I did it this way, rather than get_page() or > > whatever. Locking the page is a good way of preventing anyone else > > from futzing with it. It also pins the inode, which perhaps meant that > > with careful management, I could avoid the igrab()/iput() horrors > > discussed above. > > I think using get_page() might be a good way to go. get_page() doesn't pin the inode - truncate() will still detach it from the address_space(). -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>