From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/md/dm-core.h | 83 +++++++++++++++++++++++++++++++----------
1 files changed, 62 insertions(+), 21 deletions(-)
diff --git a/kernel/drivers/md/dm-core.h b/kernel/drivers/md/dm-core.h
index 7e426e4..780aec6 100644
--- a/kernel/drivers/md/dm-core.h
+++ b/kernel/drivers/md/dm-core.h
@@ -11,7 +11,9 @@
#include <linux/kthread.h>
#include <linux/ktime.h>
+#include <linux/genhd.h>
#include <linux/blk-mq.h>
+#include <linux/keyslot-manager.h>
#include <trace/events/block.h>
@@ -25,9 +27,11 @@
};
/*
- * DM core internal structure that used directly by dm.c and dm-rq.c
- * DM targets must _not_ deference a mapped_device to directly access its members!
+ * DM core internal structures used directly by dm.c, dm-rq.c and dm-table.c.
+ * DM targets must _not_ deference a mapped_device or dm_table to directly
+ * access their members!
*/
+
struct mapped_device {
struct mutex suspend_lock;
@@ -65,7 +69,6 @@
*/
struct work_struct work;
wait_queue_head_t wait;
- atomic_t pending[2];
spinlock_t deferred_lock;
struct bio_list deferred;
@@ -94,11 +97,6 @@
*/
struct workqueue_struct *wq;
- /*
- * freeze/thaw support require holding onto a super block
- */
- struct super_block *frozen_sb;
-
/* forced geometry settings */
struct hd_geometry geometry;
@@ -107,33 +105,76 @@
struct block_device *bdev;
- /* zero-length flush that will be cloned and submitted to targets */
- struct bio flush_bio;
+ int swap_bios;
+ struct semaphore swap_bios_semaphore;
+ struct mutex swap_bios_lock;
struct dm_stats stats;
- struct kthread_worker kworker;
- struct task_struct *kworker_task;
-
- /* for request-based merge heuristic in dm_request_fn() */
- unsigned seq_rq_merge_deadline_usecs;
- int last_rq_rw;
- sector_t last_rq_pos;
- ktime_t last_rq_start_time;
-
/* for blk-mq request-based DM support */
struct blk_mq_tag_set *tag_set;
- bool use_blk_mq:1;
bool init_tio_pdu:1;
struct srcu_struct io_barrier;
};
-int md_in_flight(struct mapped_device *md);
void disable_discard(struct mapped_device *md);
void disable_write_same(struct mapped_device *md);
void disable_write_zeroes(struct mapped_device *md);
+static inline sector_t dm_get_size(struct mapped_device *md)
+{
+ return get_capacity(md->disk);
+}
+
+static inline struct dm_stats *dm_get_stats(struct mapped_device *md)
+{
+ return &md->stats;
+}
+
+#define DM_TABLE_MAX_DEPTH 16
+
+struct dm_table {
+ struct mapped_device *md;
+ enum dm_queue_mode type;
+
+ /* btree table */
+ unsigned int depth;
+ unsigned int counts[DM_TABLE_MAX_DEPTH]; /* in nodes */
+ sector_t *index[DM_TABLE_MAX_DEPTH];
+
+ unsigned int num_targets;
+ unsigned int num_allocated;
+ sector_t *highs;
+ struct dm_target *targets;
+
+ struct target_type *immutable_target_type;
+
+ bool integrity_supported:1;
+ bool singleton:1;
+ unsigned integrity_added:1;
+
+ /*
+ * Indicates the rw permissions for the new logical
+ * device. This should be a combination of FMODE_READ
+ * and FMODE_WRITE.
+ */
+ fmode_t mode;
+
+ /* a list of devices used by this table */
+ struct list_head devices;
+
+ /* events get handed up using this callback */
+ void (*event_fn)(void *);
+ void *event_context;
+
+ struct dm_md_mempools *mempools;
+
+#ifdef CONFIG_BLK_INLINE_ENCRYPTION
+ struct blk_keyslot_manager *ksm;
+#endif
+};
+
static inline struct completion *dm_get_completion_from_kobject(struct kobject *kobj)
{
return &container_of(kobj, struct dm_kobject_holder, kobj)->completion;
--
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