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CKI Backport Bot
8f29e6998a
JIRA: https://redhat.atlassian.net/browse/RHEL-213155 CVE: CVE-2026-64017 Backported from tree(s): linux blk-mq: reinsert cached request to the list A previous commit removed an optimization out of caution for a scenario that turns out not to be real: all the "queue_exit" goto's are safe to reinsert the request into the cached_rq's plug list as they are either from a non-blocking path, or a successful merge that already holds the queue reference. This optimization is most needed for small sequential workloads that successfully merge into larger requests. Fixes: dc278e9bf2b9 ("blk-mq: pop cached request if it is usable") Suggested-by: Ming Lei <tom.leiming@gmail.com> Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Link: https://patch.msgid.link/20260526153531.2365935-1-kbusch@meta.com Signed-off-by: Jens Axboe <axboe@kernel.dk> (cherry picked from commit b051bb6bf0a231117036aa607cadf55be8e63910) Signed-off-by: CKI Backport Bot <cki-ci-bot+cki-gitlab-backport-bot@redhat.com>