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  1. Lustre
  2. LU-16695

switch Lustre to use IOCB_APPEND and IOCB_DIRECT instead of file flags

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    • Improvement
    • Resolution: Fixed
    • Minor
    • Lustre 2.16.0
    • None
    • None
    • 9223372036854775807

    Description

      Usage of O_DIRECT and O_APPEND from file->f_flags to make decisions about IO exposes us to races with fcntl.  The upstream kernel fixed this in 2015 by mirroring them in to the IOCB flags.  Let's use these.

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          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-17116 losetup --direct-io=on trigger LASSERT(ll_dio_aio) in ll_file_io_generic

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

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              paf0186 Patrick Farrell (Inactive)
              paf0186 Patrick Farrell (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: