On Wed, Feb 10, 2010 at 04:30:07PM +0300, Evgeniy Polyakov wrote: > > > > Why not use the dentries you've been given by VFS? > > > > > > At writeback we do not have parents, so must find a path somehow. > > > > Most of the places do have those just fine and unlike the writeback, > > rename et.al. really care which pathname is being dealt with... > > POHMELFS uses writeback cache also for metadata, so effectively most of > such operations are also postponed. Later I turned that off though. > > > BTW, what prevents writeback vs. rename races? > > There are proper locks for such operations. Which would be... ? E.g. between writepages() and rename(). What serializes your write_inode_create() wrt renames? IOW, how can the server decide that data from writepages() should go to the same object regardless of the rename? -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
