Whamcloud Community JIRA https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 [LU-13004] Use a single style of IO buf descriptor - iovec https://jira.whamcloud.com/browse/LU-13004 Lustre <p>Lustre and lnet support two parallel types of IO descriptors:</p> <ul> <li>KVEC - a list of virtual-address plus SIZE</li> <li>IOVEC - a list of PAGE + OFFSET + LEN</li> </ul> <p>This results in unnecessary duplication. IOVEC is suitable for all use-cases.</p> <p>This involves removing BULK_BUF_KVEC usage, then  LNET_MD_IOVEC, then ksock_tx.iov, then tx_iov - and probably other clean up.</p> <p> </p> LU-13004 Use a single style of IO buf descriptor - iovec Improvement Minor Resolved Fixed Neil Brown Neil Brown Sun, 24 Nov 2019 22:25:44 +0000 Sun, 31 Jan 2021 15:28:57 +0000 Wed, 27 May 2020 12:08:09 +0000 Lustre 2.14.0 0 5 <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/36824" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36824</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> ptlrpc: Allow BULK_BUF_KIOV to accept a kvec<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: e1215510e48a2928f79e5bc3c906b2051d2ffd10</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/36825" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36825</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> osp: break read request into pages.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: fbe86c96d411aafd6294e486efadcef26b255280</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/36826" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36826</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> target: use KIOV for out_handle<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: f9570ddbf1385e7eb8dc53bfe1fe599ab543777b</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/36827" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36827</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> target: convert tgt_send_buffer to use KIOV<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 33aa9efc7fae0fcddae73c8be9e22931cfc371aa</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/36828" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36828</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> osp: use KIOV in osp_prep_update_req<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 267c0aeec2be7349e4d9624dcd40c37e9496efb4</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/36974" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36974</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> net: discard LNET_MD_IOVEC<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 96a9a817f35a88caf3ba815b97906fd1fd2c95a7</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/36972" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36972</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> ptlrpc: remove *GET*KVEC macros and fields.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: a550872aa559d87cc85826f6ee745f603ca8a385</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/36971" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36971</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lustre: remove support for KVEC bulk descriptors<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 49fc16f787aade2bc2fade0179374da1ad4c074d</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/36973" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36973</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> ptlrpc: simplify bd_vec access.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 6f39923b247ad555bba45968710099f359ec2f53</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36824/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36824/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> ptlrpc: Allow BULK_BUF_KIOV to accept a kvec<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 917655fc2938b90a9c246dd2d58408c42aa1658d</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36827/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36827/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> target: convert tgt_send_buffer to use KIOV<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 86c07d589db93021a41a21bb8e431575216fa9b8</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36825/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36825/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> osp: break read request into pages.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 27659339a94d5eb1789e08c796c953f6effebc11</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36826/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36826/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> target: use KIOV for out_handle<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 86fda8611930a6f9ed73cc5e7813c4809a96ab6d</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36828/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36828/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> osp: use KIOV in osp_prep_update_req<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: f32fbf189fab57202810a9a47343a14c6c3ead95</p> <p>I have constant LBUG in test 17n sanity.sh with the following stack trace:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> [ 2135.474369] LustreError: 9149:0:(client.c:264:__ptlrpc_prep_bulk_page()) ASSERTION( desc-&gt;bd_iov_count &lt; desc-&gt;bd_max_iov ) failed: 8 vs 8 [ 2135.474726] LustreError: 9149:0:(client.c:264:__ptlrpc_prep_bulk_page()) LBUG [ 2135.474896] Pid: 9149, comm: mdt_out00_000 3.10.0 #1 SMP Tue Jun 11 05:40:47 EDT 2019 [ 2135.474897] Call Trace: [ 2135.474901] [&lt;ffffffffa00889dd&gt;] libcfs_call_trace+0x7d/0xa0 [libcfs] [ 2135.474911] [&lt;ffffffffa0088a7c&gt;] lbug_with_loc+0x4c/0xa0 [libcfs] [ 2135.474917] [&lt;ffffffffa04c9e8a&gt;] __ptlrpc_prep_bulk_page+0x1ca/0x200 [ptlrpc] [ 2135.474951] [&lt;ffffffffa04caded&gt;] ptlrpc_prep_bulk_frag_pages+0x7d/0x130 [ptlrpc] [ 2135.474978] [&lt;ffffffffa0544f67&gt;] tgt_send_buffer+0xd7/0x200 [ptlrpc] [ 2135.475013] LustreError: 13486:0:(lmv_obd.c:1259:lmv_statfs()) lustre-MDT0001-mdc-ffff8800b7579bf8: can't stat MDS #0: rc = -11 [ 2135.476026] [&lt;ffffffffa0550641&gt;] out_read+0x751/0xa70 [ptlrpc] [ 2135.476059] [&lt;ffffffffa0553d47&gt;] out_handle+0x14f7/0x1b80 [ptlrpc] [ 2135.476088] [&lt;ffffffffa054ac5a&gt;] tgt_request_handle+0x94a/0x15f0 [ptlrpc] [ 2135.476116] [&lt;ffffffffa04ee386&gt;] ptlrpc_server_handle_request+0x256/0xb20 [ptlrpc] [ 2135.476144] [&lt;ffffffffa04f2808&gt;] ptlrpc_main+0xc48/0x1c70 [ptlrpc] [ 2135.476170] [&lt;ffffffff8110aad4&gt;] kthread+0xd4/0xe0 [ 2135.476174] [&lt;ffffffff81839777&gt;] ret_from_fork_nospec_end+0x0/0x39 [ 2135.476177] [&lt;ffffffffffffffff&gt;] 0xffffffffffffffff </pre> </div></div> <p>I've added small debug in assert and it shows that bd_max_iov is set to lower value than is used later. It looks like in <tt>tgt_send_buffer</tt> the <tt>pages</tt> are calculated wrongly and is smaller value than amount of <tt>__ptlrpc_prep_bulk_page()</tt> calls in later cycle through <tt>rdbuf-&gt;rb_nbufs</tt></p> <p>I've check that once more and it seems it can be possible if offset of first chunk is not 0, though that is also not likely, because its size is 4K in case of 8 chunks as above. I am using SLUB allocator in kernel, just in case.</p> <p>I've collect more debug info about buffers allocated in out_read():</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> 00000020:00000400:2.0:1581670655.078022:0:8712:0:(tgt_handler.c:1095:tgt_send_buffer()) buf[0]: offset 2024, len 4096 00000020:00000400:2.0:1581670655.078032:0:8712:0:(tgt_handler.c:1095:tgt_send_buffer()) buf[1]: offset 8, len 4096 00000020:00000400:2.0:1581670655.078033:0:8712:0:(tgt_handler.c:1095:tgt_send_buffer()) buf[2]: offset 8, len 4096 00000020:00000400:2.0:1581670655.078034:0:8712:0:(tgt_handler.c:1095:tgt_send_buffer()) buf[3]: offset 680, len 4096 00000020:00000400:2.0:1581670655.078035:0:8712:0:(tgt_handler.c:1095:tgt_send_buffer()) buf[4]: offset 1352, len 4096 00000020:00000400:2.0:1581670655.078035:0:8712:0:(tgt_handler.c:1095:tgt_send_buffer()) buf[5]: offset 8, len 4096 00000020:00000400:2.0:1581670655.078036:0:8712:0:(tgt_handler.c:1095:tgt_send_buffer()) buf[6]: offset 2024, len 4096 00000020:00000400:2.0:1581670655.078037:0:8712:0:(tgt_handler.c:1095:tgt_send_buffer()) buf[7]: offset 344, len 4096 00000020:00020000:2.0:1581670655.078038:0:8712:0:(tgt_handler.c:1096:tgt_send_buffer()) on step #4 pages: 8 vs 8 </pre> </div></div> <p>it shows that all 4K buffers were allocated with offsets so each one consume 2 pages and on step #4 cycle with add_iov_frag() in tgt_send_buffer() hit assertion. I looks like SLUB usage causes that and with it we cannot rely on that bufs are 4K aligned:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> <span class="code-keyword">for</span> (i = 0; i &lt; rdbuf-&gt;rb_nbufs; i++) /* There is only one caller (out_read) and we *know* that * bufs are at most 4K, and 4K aligned, so a simple DIV_ROUND_UP * is always sufficient. */ pages += DIV_ROUND_UP(rdbuf-&gt;rb_bufs[i].lb_len, PAGE_SIZE); </pre> </div></div> <p>code for <tt>pages</tt> calculations should include offset, that will be more generic in any case </p> <p>Mike Pershin (mpershin@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/37571" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37571</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> target: take offset into account in tgt_send_buffer<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 3f150991af33de4067f9b5cf7157d4e519606d11</p> <p>I've made quick patch for that problem, feel free to change it in any better way if needed</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37587" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37587</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> osp: use correct page count in osp_prep_update_req<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 796a4cf001dc5ad56ebd854b6241851138d59f92</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37587/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37587/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> osp: use correct page count in osp_prep_update_req<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 5f04a9d6d6a4709382f8981c8cc56d526cefa2dc</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37571/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37571/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> target: take offset into account in tgt_send_buffer<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: f57030811f20b7c3e1432134ff97c9929ff4e0c8</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36971/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36971/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lustre: remove support for KVEC bulk descriptors<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 8151daa2c8d97917b37b9271c5d6936a75b48328</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36972/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36972/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> ptlrpc: remove *GET*KVEC macros and fields.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 2006ca8d430dff6dda7981b901899293bfd33180</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36973/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36973/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> ptlrpc: simplify bd_vec access.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 816c9f01d5b44e05437b890aab4ef50edc02230f</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37851" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37851</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> socklnd: discard tx_iov.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 6262896f44e9659e2d17a24382d6cec94441deb3</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37850" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37850</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: simplify ksock_tx.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 2420d8ea03b010238c0aeaf9f2e5bbbae96de687</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37848" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37848</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: remove lnet_extract_iov()<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 0e6af7dea3cb740c9f938f4818ff19ce7feecf79</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37841" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37841</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: merge lnet_md_alloc into lnet_md_build.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 361637aef5f6e658da4c939005b7898f42b0e930</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37840" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37840</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: don't embed whole lnet_md in lnet_event<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 014103b1f5030bae2259b87fc770c2b4646235d1</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37853" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37853</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: always pass struct lnet_md by reference.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 7cad3f7a2f29b20ae01870ff689c638578aa83f1</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37842" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37842</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: always put a page list into struct lnet_libmd<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 31e3d4f9cf826ebaadd4258e9b69f30c608f1b0c</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37852" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37852</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> modules: replace lnet_kiov_t with struct bio_vec<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 66a941bdd8f4e664955200fd8de768f11eb6f386</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37843" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37843</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: discard kvec option from lnet_libmd.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 11730ca655dd6d96415d19252a1c89650a15e3c9</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37846" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37846</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> gnilnd: discard struct kvec arg.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 59bed4d4a1c2430d0305ac4cbac47333b8d4c338</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37845" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37845</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: remove the 'struct kvec' arg from lnd_send<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: d9b2ceb797895943e8fba7110d23e8cfa73f94f2</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37849" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37849</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: remove lnet_copy_flat2iov and ..iov2flat<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 9159d0dfeddb0312dc797b961d2ba3a596c95b3d</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37844" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37844</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: remove msg_iov from lnet_msg.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 1f53b14bb0a764ccba755bcfd1c37ea98cbf0500</p> <p>Neil Brown (neilb@suse.de) uploaded a new patch: <a href="https://review.whamcloud.com/37847" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37847</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> gnilnd: remove support for GNILND_BUF_VIRT_*<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 049011a7d5bf8ef571ba623a1e26f62a0c24a450</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37852/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37852/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> modules: replace lnet_kiov_t with struct bio_vec<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 7a74d382d5e8867785f662aede54a3e399168325</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36974/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36974/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> net: discard LNET_MD_IOVEC<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: bcdb4a285f33f83ca51ec0eb6945ef95a3164f7a</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37840/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37840/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: don't embed whole lnet_md in lnet_event<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 23f1c6e1f15ea4b457e40c91ee9d3768b7da253e</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37841/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37841/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: merge lnet_md_alloc into lnet_md_build.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: c0598f15dd502deadc6e84f362331d1ed77b6d14</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37842/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37842/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: always put a page list into struct lnet_libmd<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 857f11169fc8d7575b6b92e5dbb57b4c359d9dcc</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37843/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37843/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: discard kvec option from lnet_libmd.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 4775d52439f4f8df42056626535462ecb6cce009</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37844/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37844/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: remove msg_iov from lnet_msg.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 585e6df77ebf2553760c42b3c7344a6bb0ee7f5e</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37845/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37845/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: remove the 'struct kvec' arg from lnd_send<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: e35b7751f49fb7044955e3fa65de5e1a6d638ca0</p> <p>Shaun Tancheff (shaun.tancheff@hpe.com) uploaded a new patch: <a href="https://review.whamcloud.com/38491" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/38491</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: Correct signature in gnilnd.h<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: c233ec5aa4497eceb68de85328a9baa80e03509e</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37848/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37848/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: remove lnet_extract_iov()<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 571943f9cd090f5d2577048d176f320430beada5</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37849/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37849/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: remove lnet_copy_flat2iov and ..iov2flat<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 12af05194ad71c5278a5943035a3da8200fac969</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37850/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37850/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: simplify ksock_tx.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 28ffde29603b12627e87e9becd3ec2a5c377124d</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37851/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37851/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> socklnd: discard tx_iov.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 89637985b9897002929ac994a7366d92d20daf96</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/38491/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/38491/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: Correct signature in gnilnd.h<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 21c11516b1a3511b0aaa34d8faaaff63c4117993</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37846/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37846/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> gnilnd: discard struct kvec arg.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: c87f41dd20f9940625b4cf8ee423c1d6ccac4750</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37847/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37847/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> gnilnd: remove support for GNILND_BUF_VIRT_*<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: d50617709841a37afd9db00ea6c4ace94828a3c2</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/37853/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/37853/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13004" title="Use a single style of IO buf descriptor - iovec" class="issue-link" data-issue-key="LU-13004"><del>LU-13004</del></a> lnet: always pass struct lnet_md by reference.<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: fb3ed0fe68e324f8d6e002a32486de7f5d38f2e3</p> Related LU-12678 LU-14390 Development Rank 1|i00pun: Rank (Obsolete) 9223372036854775807