From cf9610f9116d55c5a66ef9f1faecacabd93a9322 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 24 Aug 2026 08:46:03 -0700 Subject: Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ... --- drivers/md/dm-cache-background-tracker.h | 88 ++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 drivers/md/dm-cache-background-tracker.h (limited to 'drivers/md/dm-cache-background-tracker.h') diff --git a/drivers/md/dm-cache-background-tracker.h b/drivers/md/dm-cache-background-tracker.h new file mode 100644 index 000000000..47156c14a --- /dev/null +++ b/drivers/md/dm-cache-background-tracker.h @@ -0,0 +1,88 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2017 Red Hat. All rights reserved. + * + * This file is released under the GPL. + */ + +#ifndef DM_CACHE_BACKGROUND_WORK_H +#define DM_CACHE_BACKGROUND_WORK_H + +#include +#include "dm-cache-policy.h" + +/*----------------------------------------------------------------*/ + +/* + * The cache policy decides what background work should be performed, + * such as promotions, demotions and writebacks. The core cache target + * is in charge of performing the work, and does so when it sees fit. + * + * The background_tracker acts as a go between. Keeping track of future + * work that the policy has decided upon, and handing (issuing) it to + * the core target when requested. + * + * There is no locking in this, so calls will probably need to be + * protected with a spinlock. + */ + +struct bt_work { + struct list_head list; + struct rb_node node; + struct policy_work work; +}; + +extern struct kmem_cache *btracker_work_cache; + +struct background_work; +struct background_tracker; + +/* + * Create a new tracker, it will not be able to queue more than + * 'max_work' entries. + */ +struct background_tracker *btracker_create(unsigned int max_work); + +/* + * Destroy the tracker. No issued, but not complete, work should + * exist when this is called. It is fine to have queued but unissued + * work. + */ +void btracker_destroy(struct background_tracker *b); + +unsigned int btracker_nr_demotions_queued(struct background_tracker *b); + +/* + * Queue some work within the tracker. 'work' should point to the work + * to queue, this will be copied (ownership doesn't pass). If pwork + * is not NULL then it will be set to point to the tracker's internal + * copy of the work. + * + * returns -EINVAL iff the work is already queued. -ENOMEM if the work + * couldn't be queued for another reason. + */ +int btracker_queue(struct background_tracker *b, + struct policy_work *work, + struct policy_work **pwork); + +/* + * Hands out the next piece of work to be performed. + * Returns -ENODATA if there's no work. + */ +int btracker_issue(struct background_tracker *b, struct policy_work **work); + +/* + * Informs the tracker that the work has been completed and it may forget + * about it. + */ +void btracker_complete(struct background_tracker *b, struct policy_work *op); + +/* + * Predicate to see if an origin block is already scheduled for promotion. + */ +bool btracker_promotion_already_present(struct background_tracker *b, + dm_oblock_t oblock); + +/*----------------------------------------------------------------*/ + +#endif -- cgit v1.3.1