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  1. Lustre
  2. LU-13004

Use a single style of IO buf descriptor - iovec

Details

    • Improvement
    • Resolution: Fixed
    • Minor
    • Lustre 2.14.0
    • None
    • None
    • 9223372036854775807

    Description

      Lustre and lnet support two parallel types of IO descriptors:

      • KVEC - a list of virtual-address plus SIZE
      • IOVEC - a list of PAGE + OFFSET + LEN

      This results in unnecessary duplication. IOVEC is suitable for all use-cases.

      This involves removing BULK_BUF_KVEC usage, then  LNET_MD_IOVEC, then ksock_tx.iov, then tx_iov - and probably other clean up.

       

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          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-14390 A change in LU-13004 wrongly switched to round_up() instead of DIV_ROUND_UP().

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-12678 LNet simplification work from linux client

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

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              neilb Neil Brown
              neilb Neil Brown
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                Created:
                Updated:
                Resolved: