The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable@xxxxxxxxxxxxxxx>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 73aeab373557fa6ee4ae0b742c6211ccd9859280 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable@xxxxxxxxxxxxxxx>' --in-reply-to '2024100232-unheated-trailing-4528@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: 73aeab373557 ("block, bfq: fix procress reference leakage for bfqq in merge chain") 9778369a2d6c ("block, bfq: split sync bfq_queues on a per-actuator basis") 246cf66e300b ("block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq") 337366e02b37 ("block, bfq: replace 0/1 with false/true in bic apis") 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'") dc469ba2e790 ("block/bfq: Use the new blk_opf_t type") 4e54a2493e58 ("bfq: Get rid of __bio_blkcg() usage") 09f871868080 ("bfq: Track whether bfq_group is still online") ea591cd4eb27 ("bfq: Update cgroup information before merging bio") 3bc5e683c67d ("bfq: Split shared queues on move between cgroups") f6bad159f5d5 ("block/bfq-iosched.c: use "false" rather than "BLK_RW_ASYNC"") a0725c22cd84 ("bfq: use bfq_bic_lookup in bfq_limit_depth") 1f18b7005b49 ("bfq: Limit waker detection in time") 76f1df88bbc2 ("bfq: Limit number of requests consumed by each cgroup") 44dfa279f117 ("bfq: Store full bitmap depth in bfq_data") ae0f1a732f4a ("blk-mq: Stop using pointers for blk_mq_tags bitmap tags") e155b0c238b2 ("blk-mq: Use shared tags for shared sbitmap support") 645db34e5050 ("blk-mq: Refactor and rename blk_mq_free_map_and_{requests->rqs}()") 63064be150e4 ("blk-mq: Add blk_mq_alloc_map_and_rqs()") a7e7388dced4 ("blk-mq: Add blk_mq_tag_update_sched_shared_sbitmap()") thanks, greg k-h ------------------ original commit in Linus's tree ------------------
