release-26.1: admission: fix deadlock possibility in SnapshotQueue #159435
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This could happen if the context passed to the pacer for the incoming snapshot was cancelled, and there was a race with the granter calling into the SnapshotQueue. Fixes: #159402 Epic: none Release note (bug fix): Fixes a race in context cancellation of an incoming snapshot.
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Backport 1/1 commits from #159403 on behalf of @sumeerbhola.
This could happen if the context passed to the pacer for the incoming snapshot was cancelled, and there was a race with the granter calling into the SnapshotQueue.
Fixes: #159402
Epic: none
Release note (bug fix): Fixes a race in context cancellation of an incoming snapshot.
Release justification: