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  1. Lustre
  2. LU-12137

update client to use iterate_shared

Details

    • Improvement
    • Resolution: Fixed
    • Minor
    • Lustre 2.13.0, Lustre 2.14.0
    • None
    • None
    • 9223372036854775807

    Description

      Since kernel commit v4.6-rc3-29-g6192269 there is a new ->iterate_shared() file operation for reading directories with a shared lock on the client. We should change over the llite client to use the ->iterate_shared() method to improve directory access concurrency on the client.

      There is already a HAVE_ITERATE_SHARED configure check that can be used to detect support for this functionality.

      Attachments

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-11832 ARM servers crashing on MDS startup

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. LU-12598 osd_ios_lf_fill() returns 0 on some error paths.

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

          Improvement - An improvement or enhancement to an existing feature or task. LU-11310 support for SLES 15

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

          Bug - A problem which impairs or prevents the functions of the product. LU-11044 ext4_dir_operations uses iterate_shared() in Linux 4.7

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

          New Feature - A new feature of the product, which has yet to be developed. LU-10997 Ubuntu 18 support

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

          New Feature - A new feature of the product, which has yet to be developed. LU-11200 Centos 8 arm64 server support

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

          Activity

            [LU-12137] update client to use iterate_shared
            jgmitter Joseph Gmitter (Inactive) made changes -
            Fix Version/s New: Lustre 2.13.0 [ 14290 ]
            simmonsja James A Simmons made changes -
            Fix Version/s New: Lustre 2.14.0 [ 14490 ]
            Resolution New: Fixed [ 1 ]
            Status Original: Open [ 1 ] New: Resolved [ 5 ]
            simmonsja James A Simmons made changes -
            Link New: This issue is related to LU-12598 [ LU-12598 ]
            pjones Peter Jones made changes -
            Assignee Original: WC Triage [ wc-triage ] New: James A Simmons [ simmonsja ]
            simmonsja James A Simmons made changes -
            Link New: This issue is related to LU-11832 [ LU-11832 ]
            simmonsja James A Simmons made changes -
            Link New: This issue is related to LU-10997 [ LU-10997 ]
            simmonsja James A Simmons made changes -
            Link New: This issue is related to LU-11310 [ LU-11310 ]
            simmonsja James A Simmons made changes -
            Link New: This issue is related to LU-11200 [ LU-11200 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-11044 [ LU-11044 ]
            adilger Andreas Dilger made changes -
            Description Original: Since kernel commit {{v4.6-rc3-29-g6192269}} there is a new {{->iterate_shared()}} file operation for reading directories with a shared lock on the client. We should change over the llite client to use the {{->iterate_shared()}} method to improve directory access concurrency on the client.

            There is already a {{HAVE_ITERATE_SHARED}} configure check that can be used to detect support for this functionality.             		New: Since kernel commit {{v4.6\-rc3\-29\-g6192269}} there is a new {{\->iterate\_shared()}} file operation for reading directories with a shared lock on the client. We should change over the llite client to use the {{\->iterate\_shared()}} method to improve directory access concurrency on the client.

            There is already a {{HAVE\_ITERATE\_SHARED}} configure check that can be used to detect support for this functionality.
            adilger Andreas Dilger created issue -

            People

              simmonsja James A Simmons
              adilger Andreas Dilger
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              Dates

                Created:
                Updated:
                Resolved: