Hello, On Mon, Aug 24, 2015 at 10:51:50AM -0400, Tejun Heo wrote: > > Bah, I see the problem and indeed it was introduced by commit e79729123f639 > > "writeback: don't issue wb_writeback_work if clean". The problem is that > > we bail out of sync_inodes_sb() if there is no dirty IO. Which is wrong > > because we have to wait for any outstanding IO (i.e. call wait_sb_inodes()) > > regardless of dirty state! And that also explains why Tejun's patch fixes > > the problem because it backs out the change to the exit condition in > > sync_inodes_sb(). > > Dang, I'm an idiot sandwich.
A question tho, so this means that an inode may contain dirty or writeback pages w/o the inode being on one of the dirty lists. Looking at the generic filesystem and writeback code, this doesn't seem true in general. Is this something xfs specific? Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
