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-14000 Lustre <p>When attach a file at file open with direct mode, the kernel data copying from Lustre file to PCC copy will result in -EFAULT error as the buffer is allocated in the kernel, not from user space. <br/> Thus we need unmask the O_DIRECT flag from the file handle during data copying, after finished the data copying, restore the flag of the file handle.</p> LU-14000

PCC: PCC attach failed when open with O_DIRECT mode

Bug Minor Open Unresolved Qian Yingjin Qian Yingjin Tue, 29 Sep 2020 02:07:19 +0000 Tue, 29 Sep 2020 05:22:29 +0000 0 3 <p>Yingjin Qian (qian@ddn.com) uploaded a new patch: <a href="https://review.whamcloud.com/40082" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/40082</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-14000" title="PCC: PCC attach failed when open with O_DIRECT mode" class="issue-link" data-issue-key="LU-14000">LU-14000</a> pcc: unmask O_DIRECT open flag during attach<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: f0e6c251bde21084b9405cb4288f548ca67e8bdf</p> Related Development Rank 1|i01ayn: Rank (Obsolete) 9223372036854775807 Severity