[PATCH blktests v3] nvme/052: wait for namespace removal before recreating namespace

[Shinichiro Kawasaki]

On Sep 02, 2024 / 19:54, Shin'ichiro Kawasaki wrote:
> The CKI project reported that the test case nvme/052 fails occasionally
> with the errors below:
[...]
> To avoid the failure, wait for the namespace removal before recreating
> the namespace. Modify nvmf_wait_for_ns() so that it can wait for
> namespace creation and removal. Call nvmf_wait_for_ns() for removal
> after _remove_nvmet_ns() call. While at it, reduce the wait time unit
> from 1 second to 0.1 second to shorten test time.
> 
> The test case intends to catch the regression fixed by the kernel commit
> ff0ffe5b7c3c ("nvme: fix namespace removal list"). I reverted the commit
> from the kernel v6.11-rc4, then confirmed that the test case still can
> catch the regression with this change.
> 
> Link: https://lore.kernel.org/linux-block/tczctp5tkr34o3k3f4dlyhuutgp2ycex6gdbjuqx4trn6ewm2i@qbkza3yr5wdd/
> Fixes: 077211a0e9ff ("nvme: add test for creating/deleting file-ns")
> Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki at wdc.com>

I applied the patch. Nilay, thanks for your help!