On 05.08.19 14:01, Vladimir Sementsov-Ogievskiy wrote: > Without this, hbitmap_next_zero and hbitmap_next_dirty_area are broken > after truncate. So, orig_size is broken since it's introduction in > 76d570dc495c56bb. > > Fixes: 76d570dc495c56bb > Signed-off-by: Vladimir Sementsov-Ogievskiy > --- > > Hi! > > Here is one more hbitmap bug I noticed. It's my fault, I'm sorry :( > Broken in 4.0, but if we are already going to fix in 4.1 some things > around it, it's a small meaningful addition. Hm. :-/ > Users of broken API are incremental backup, sync mirror (but it may not > be broken, if truncates not allowed during mirror, are they?), It doesn’t appear that way (we don’t share BLK_PERM_RESIZE). > bitmap export through NBD. I suppose that counts as block-y enough for me to take it. Well, I’d still like a test case to see the impact... I’ll see whether I can come up with something. > util/hbitmap.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) Reviewed-by: Max Reitz