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totemknet: retry knet_handle_new without privileged operations if it … #623

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wants to merge 1 commit into from
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totemknet: retry knet_handle_new without privileged operations if it … #623

wants to merge 1 commit into from

Commits on Mar 15, 2021

  1. totemknet: retry knet_handle_new without privileged operations if it … 

    …fails

knet_handle_new can fail with ENAMETOOLONG if its privileged operations
fail, which can happen if we're running as a user process or in an
unprivileged container.

This adds a cmap key 'allow_knet_handle_fallback' that defaults to no,
which is the current behavior of exiting with error if the knet_handle
can't be created with privileged operations. If the new cmap key is set
to 'yes' and the knet_handle creation fails, fallback to creating the
handle using unprivileged operations is tried.

Signed-off-by: Dan Streetman <ddstreet@canonical.com>
    Dan Streetman committed Mar 15, 2021
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