On Sat, Dec 22, 2012 at 12:29 AM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > NAK, we went through great trouble to get rid of the nasty layering > violation where the VM called file_update_time directly just a short > while ago, reintroducing that is a massive step back. > > Make sure whatever "solution" for your problem you come up with keeps > the file update in the filesystem or generic helpers. > There's an inode operation ->update_time that is called (if it exists) in these patches to update the time. Is that insufficient? I could add a new inode operation ->modified_by_mmap that would be called in mapping_flush_cmtime if that would be better. The original version of this patch did the update in ->writepage and ->writepages, but that may have had lock ordering issues. (I wasn't able to confirm that there was any actual problem.) --Andy -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>