On Wed, 24 Oct 2012 09:44:23 -0400 Jeff Moyer <jmoyer@xxxxxxxxxx> wrote: > MITSUNARI Shigeo <herumi@xxxxxxxxx> writes: > > > Hi, > > > > We found that bdev->bd_invalidated was left set once revalidate_disk() > > is called, which results in page cache flush every time that device > > is open. > > > > Specifically, we found this problem in MD block device. Once we > > resize a MD device, mdadm --monitor periodically flush all page cache > > for that device every 60 or 1000 seconds when it opens the device. > > > > This bug lies since at least 3.2.0 till the latest kernel(3.6.2). > > Patch is attached. > > > > Anyone please review this? Thanks in advance. > > rescan_partitions (called in the bdev open path) should reset > bd_invalidated. I think you need to dig into why that isn't happening. I suspect it's because I_NEW is no longer set on the inode. I queued this one for some viro attention ;) -- 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
