On Mon, Jun 24, 2019 at 07:06:22PM +0300, Nikolay Borisov wrote: > > +{ > > + struct list_head tmp; > > + > > + list_replace_init(&ioend->io_list, &tmp); > > + xfs_destroy_ioend(ioend, error); > > + while ((ioend = list_pop(&tmp, struct xfs_ioend, io_list))) > > + xfs_destroy_ioend(ioend, error); > > nit: I'd prefer if the list_pop patch is right before this one since > this is the first user of it. I try to keep generic infrastructure first instead of interveawing it with subystem-specific patches. > Additionally, I don't think list_pop is > really a net-negative win What is a "net-negative win" ? > in comparison to list_for_each_entry_safe > here. In fact this "delete the list" would seems more idiomatic if > implemented via list_for_each_entry_safe I disagree. The for_each loops require an additional next iterator, and also don't clearly express what is going on, but require additional spotting of the list_del.