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Date: Sat, 24 Feb 2018 13:05:07 -0800 From: Matthew Wilcox <willy@...radead.org> To: Stephen Hemminger <stephen@...workplumber.org> Cc: davem@...emloft.net, netdev@...r.kernel.org, linux-mm@...ck.org, ikomyagin@...il.com, Stephen Hemminger <sthemmin@...rosoft.com>, Christoph Lameter <cl@...ux.com>, Joonsoo Kim <iamjoonsoo.kim@....com> Subject: Re: [PATCH 0/2] mark some slabs as visible not mergeable On Sat, Feb 24, 2018 at 11:04:52AM -0800, Stephen Hemminger wrote: > This fixes an old bug in iproute2's ss command because it was > reading slabinfo to get statistics. There isn't a better API > to do this, and one can argue that /proc is a UAPI that must > not change. > > Therefore this patch set adds a flag to slab to give another > reason to prevent merging, and then uses it in network code. This is exactly the solution I would have suggested. Note that SLUB has always had slab merging, so this tool has been broken since 2.6.22 on any kernel with CONFIG_SLUB. Reviewed-by: Matthew Wilcox <mawilcox@...rosoft.com>
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