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  1. Lustre
  2. LU-9680

Improve the user land to kernel space interface for lustre

    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: Lustre 2.11.0
    • Fix Version/s: None
    • Labels:
      None
    • Rank (Obsolete):
      9223372036854775807

      Description

      Lustre currently has a complex assortment of ioctls for both the file system component and the LNet layer. Many of the those ioctls are no longer used or can be replaced with accessing files in the sysfs or debugfs file systems. With the initial review of lustre in the upstream kernel two topics on how ioctls are managed to brought to our attention. One is the dislike of the ioctl redirection that is done in lustre. The seconds is the request that we use the netlink userland API, in particular with the LNet layer. The netlink API could also be used for lustre.

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          Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-8915 Don't use linux list structure as user land arguments for lnet selftest

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. LU-11850 Relocating /proc/fs/lustre/ost to /sys/kenrnel/debug/lustre/ost prevents non-root access

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

          Bug - A problem which impairs or prevents the functions of the product. LU-12198 lnetctl peer show hangs for ~2600 clients, ioctl getting E2BIG

          • 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-12511 Prepare lustre for adoption into the linux kernel

          • Major - Major loss of function.
          • Open
          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-6202 clean up ioctl handling

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

          Bug - A problem which impairs or prevents the functions of the product. LU-8834 Don't hide new functionality behind ioctls.

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

          New Feature - A new feature of the product, which has yet to be developed. LU-9667 LNet Kernel/Userspace Interface

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

          Improvement - An improvement or enhancement to an existing feature or task. LU-10968 add coordinator bypass upcalls for HSM archive and remove

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

          Improvement - An improvement or enhancement to an existing feature or task. LU-7659 Replace KUC by more standard mechanisms

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

            Activity

              People

              • Assignee:
                simmonsja James A Simmons
                Reporter:
                simmonsja James A Simmons
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                Dates

                • Created:
                  Updated: