On Tue, Oct 31, 2017 at 05:11:59PM -0700, harshads wrote: > Add tests for Ext4 online resize feature. Once online resizing with > bigalloc support is merged into Ext4, these tests can be used to > sanitize the working of that feature. In order to test online resizing > with bigalloc, set MKFS_OPTIONS="-O bigalloc -C <cluster_size>" and > run the test. > > Signed-off-by: Harshad Shirwadkar <harshads@xxxxxxxxxx> You should do this on a loop device, that way you can test much bigger sizes and all the critical numbers around 32 bit overflows in the storage stack (2T, 4T, 8T, 16T, etc). e.g. see xfs/078. Also, you should add a test that does grow at ENOSPC will exercising the fs with fstress. See xfs/104. Perhaps some of the XFS specific tests in the growfs group could be turned into generic tests with the right infrastructure, so you get more coverage on ext4 without a whole lot of extra work... Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe fstests" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
