https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-15220 Lustre <p>Main changes needed to support Linux kernel 5.14 include:</p> <ul class="alternate" type="square"> <li>__set_page_dirty() is no longer exported</li> <li>idmapped mounts support, which adds 'struct user_namespace *' to all VFS operations (since kernel 5.12)</li> <li>'/* fallthrough */' hits implicit-fallthrough error with gcc version 11. Using the pseudo keyword 'fallthrough' to resolve the issue</li> <li>needs to import namespace CRYPTO_INTERNAL (since kernel 5.12)</li> </ul> LU-15220

Linux kernel 5.14 support

Improvement Minor Resolved Fixed Jian Yu Jian Yu Fri, 12 Nov 2021 22:55:38 +0000 Thu, 14 Jul 2022 22:57:11 +0000 Wed, 26 Jan 2022 13:58:02 +0000 Lustre 2.15.0 0 9 <p>"Jian Yu &lt;yujian@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/45566" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45566</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> lustre: use 'fallthrough' pseudo keyword for switch/case use<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 280cdac4eaa8ba2c8edc2241f3fc7ed55dbcc695</p> <p>"Jian Yu &lt;yujian@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/45777" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45777</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> tests: avoid gcc-11 -Werror=stringop-overread warning<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 47c1be42e8844c60f634969a689a1201a8763d9b</p> <p>"Jian Yu &lt;yujian@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/45812" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45812</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> libcfs: fix ‘panic_notifier_list’ undeclared error<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 0cff0f403c33460a11ace8daad947108f08eb3ac</p> <p>"Jian Yu &lt;yujian@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/45814" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45814</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> utils: fix gcc-11 -Werror=mismatched-dealloc error<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 5c28834df928ecfa60386a227dab707fe193ba82</p> <p>"Jian Yu &lt;yujian@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/45815" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45815</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> utils: fix gcc-11 -Werror=format-truncation= error<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 782a2f3e26b38b31d47c73db8ea4c7984d333eae</p> <p>Two more patches left.</p> <p>Hi Patrick,<br/> In kernel 5.14.0, __set_page_dirty() is no longer exported, which affects ll_account_page_dirtied()/vvp_account_page_dirtied() in lustre/llite/vvp_dev.c.<br/> Copying the codes from __set_page_dirty() doesn't work because the account_page_dirtied() in it is also not exported.<br/> Could you please advise how to resolve this issue? Can we use _set_page_dirty_nobuffers() instead of _set_page_dirty()?</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/45815/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45815/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> utils: fix gcc-11 -Werror=format-truncation= error<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 9b0b7264a8d7a6a2abe681d15fefc88c27d20c1e</p> <p>Jian,</p> <p>Oof, this is actually pretty complicated.</p> <p>I see Neil changed the code here with <a href="https://review.whamcloud.com/#/c/40827/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/#/c/40827/</a> .  That basically makes this function pointless in these kernels - the entire point is to avoid taking the xarray lock for each page...  Hmm.</p> <p>OK, here is my suggested solution for compatibility, since we have already lost the desired xarray lock behavior.  I will look at restoring that, but in the meantime:</p> <p>For kernels which do not have account_page_dirtied, which should also include kernels which do not have __set_page_dirty, the right thing to do is replace all of the code in vvp_set_pagevec_dirty with a loop calling __set_page_dirty_nobuffers on the pages in the pagevec.</p> <p>"Patrick Farrell &lt;pfarrell@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/45927" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45927</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> llite: Compat for set_pagevec_dirty<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 3757b2168e7670d513270427634324695e5ec6d4</p> <p>Jian,</p> <p>Can you take that patch and test it on the newer kernels?  I don't have the right environments available.  Thanks!</p> <p>Sure, Patrick. Thank you.</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/45814/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45814/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> utils: fix gcc-11 -Werror=mismatched-dealloc error<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 64ba2b18349b56c5d7ade944ea713bade84bc02e</p> <p><a href="https://jira.whamcloud.com/secure/ViewProfile.jspa?name=yujian" class="user-hover" rel="yujian">yujian</a> does head of <a href="https://review.whamcloud.com/#/c/45566/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/#/c/45566/</a> contain all considerations of linux-5.14?<br/> I'm trying to build patch 45566 against 5.14.0-1018-oem (Ubuntu20.04), but still getting bunch of errors.</p> <p>Hi Ihara,<br/> Please apply all of the un-merged patches in this ticket and those in <a href="https://jira.whamcloud.com/browse/LU-14651" title="Linux kernel 5.12 support" class="issue-link" data-issue-key="LU-14651"><del>LU-14651</del></a>.</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/45927/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45927/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> llite: Compat for set_pagevec_dirty<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 8fdef1381ea07657d6689818b2897d69cb7e9c83</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/45812/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45812/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> libcfs: fix panic_notifier_list undeclared error<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: fb545fa83837c1478ad41f752cf5d3e313b67c73</p> <p>"Andreas Dilger &lt;adilger@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/46269" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/46269</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> lustre: use 'fallthrough' pseudo keyword for switch<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 0f36810ae522f8e7da6c5635f181cc8002204337</p> <p>"Andreas Dilger &lt;adilger@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/46270" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/46270</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> utils: use 'fallthrough' pseudo keyword for switch<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 22cf730b60f554d9cfd7ab74859284a8b5aaec6e</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/45777/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45777/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> tests: avoid gcc-11 -Werror=stringop-overread warning<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: c5fb44f5ecf8494cd5a497947981bd6905ddc084</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/45566/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45566/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> lnet: use 'fallthrough' pseudo keyword for switch<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 8fed107588b74c2a822421e7c0b136210d3dcf65</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/46269/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/46269/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> lustre: use 'fallthrough' pseudo keyword for switch<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 5549b1b9e032c6eae63c9bde7104769697b93a0f</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/46270/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/46270/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15220" title="Linux kernel 5.14 support" class="issue-link" data-issue-key="LU-15220"><del>LU-15220</del></a> utils: use 'fallthrough' pseudo keyword for switch<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: e631cd2395564833e9b6b27c64863d624ad0b7df</p> <p>Landed for 2.15</p> Related LU-12511 LU-14651 LU-16013 LU-15420 Development Rank 1|i029tr: Rank (Obsolete) 9223372036854775807