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Date: Mon, 30 Mar 2020 22:10:14 +0000 From: Wei Yang <richard.weiyang@...il.com> To: Matthew Wilcox <willy@...radead.org> Cc: Wei Yang <richard.weiyang@...il.com>, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 5/9] XArray: entry in last level is not expected to be a node On Mon, Mar 30, 2020 at 07:28:21AM -0700, Matthew Wilcox wrote: >On Mon, Mar 30, 2020 at 02:15:58PM +0000, Wei Yang wrote: >> On Mon, Mar 30, 2020 at 05:48:42AM -0700, Matthew Wilcox wrote: >> >On Mon, Mar 30, 2020 at 12:36:39PM +0000, Wei Yang wrote: >> >> If an entry is at the last level, whose parent's shift is 0, it is not >> >> expected to be a node. We can just leverage the xa_is_node() check to >> >> break the loop instead of check shift additionally. >> > >> >I know you didn't run the test suite after making this change. >> >> I did kernel build test, but not the test suite as you mentioned. >> >> Would you mind sharing some steps on using the test suite? And which case you >> think would trigger the problem? > >cd tools/testing/radix-tree/; make; ./main > >The IDR tests are the ones which are going to trigger on this. Thanks, I will give it a shot. -- Wei Yang Help you, Help me
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