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  1. Lustre
  2. LU-14000

PCC: PCC attach failed when open with O_DIRECT mode

Details

    • Bug
    • Resolution: Unresolved
    • Minor
    • None
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      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.
      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.

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        Activity

          [LU-14000] PCC: PCC attach failed when open with O_DIRECT mode
          qian_wc Qian Yingjin made changes -
          Link New: This issue is related to NVDA-47 [ NVDA-47 ]
          qian_wc Qian Yingjin created issue -

          People

            qian_wc Qian Yingjin
            qian_wc Qian Yingjin
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            Dates

              Created:
              Updated: