On 9/21/26 11:42, Richard Cheng wrote: > Long-term pin state should be isolated between independently opened > gup_test file descriptions, while descriptors created with dup() should > continue to share the state associated with their struct file. > > Add tests using 2 independently opened gup_test descriptors. Verify that > stopping or closing the second descriptor doesn't disturb the first > descriptor's pin, that another START on the same descriptor fails with > EINVAL, and that READ fails with EINVAL after STOP. > > Close the descriptor used by the existing test matrix before running the > ownership tests. Record whether gup_test was initially available so that > a later open failure is reported as a failure instead of being hidden as > a skip. > > Also exercise the shared-file-description case: start a pin through the > original descriptor, verify that START through a duplicate fails with > EINVAL, close the original descriptor, and use the duplicate to READ and > STOP the pin > > Reviewed-by: Koba Ko <[email protected]> > Signed-off-by: Richard Cheng <[email protected]> > --- > tools/testing/selftests/mm/gup_longterm.c | 258 +++++++++++++++++++++- > 1 file changed, 256 insertions(+), 2 deletions(-)
Sorry, we won't be adding tests for gup_test interface functionality. This is a testing interface. (I'd be quite surprised if no LLM was inovolved in writing this patch :) ) -- Cheers, David
