mirror of
https://github.com/rd-stuffs/msm-4.14.git
synced 2025-02-20 11:45:48 +08:00
c7b34f96e4
When someone calls blk_get_request() and blk_put_request() without invoking blk_execute_rq() in between, nr_pending will be unbalanced. Fix this by adding a flag, namely the RQF_PM_ADDED, to track the usage of nr_pending, so that blk_pm_put_request() won't touch nr_pending if the flag is not set. Extra care should be given to blk_pm_requeue_request(), because blk-flush.c inserts flush requests into queue without calling blk_pm_add_request(), if the flush requests get requeued by LLD, blk_pm_requeue_request() should anyways decrease nr_pending in this situation to keep it balanced. Change-Id: I7baa2049ac532e4fd22a0ce358133ba88266a314 Signed-off-by: Ziqi Chen <ziqichen@codeaurora.org> Signed-off-by: Can Guo <cang@codeaurora.org> Signed-off-by: UtsavBalar1231 <utsavbalar1231@gmail.com>