On Mon, May 16, 2022 at 11:12 PM Christoph Hellwig <hch@xxxxxx> wrote: > > On Fri, May 13, 2022 at 10:40:30AM -0700, Khazhismel Kumykov wrote: > > Restores the previous behavior of only displaying devices for which we > > have statistics (and removes the current, broken, behavior of printing > > devname with no newline if no statistics) > > > > In lieu of get_seq_buf + seq_commit, provide a way to "undo" writes if > > we use seq_printf > > I have to say I much prefer the simpler fix from Wolfgang. But Wolfgang's fix still results in a change in behavior, and in my opinion a worse behavior - we don't need to print out the device names if there are no stats. > if we want to go down this route it needs to split into a patch > for the seq_file infrastruture and a separate one for the blk-cgroup > code. Of course - I can spin this into a series if we think it's worthwhile
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