Re: [PATCH] ublk: avoid teardown retry loop on xarray allocation failure

On Tue, 04 Aug 2026 20:57:36 +0800, Yao Sang wrote:
> __ublk_shmem_remove_ranges() removes matching maple tree ranges in
> batches, but first stores each range into a temporary xarray so that the
> pages can be unpinned after dropping the maple tree lock.
> 
> That temporary xarray is filled under the maple tree lock with
> xa_store(..., GFP_ATOMIC). If the store fails before mas_erase(), the
> current range is left in the tree and the helper returns false. The
> outer ublk_shmem_remove_ranges() loop then immediately retries the same
> range. While the atomic allocation keeps failing, the teardown path has
> no forward progress.
> 
> [...]

Applied, thanks!

[1/1] ublk: avoid teardown retry loop on xarray allocation failure
      commit: 4fd66a7f829f3f38f92a79081f0f2688aed644f0

Best regards,
-- 
Jens Axboe