blk-mq: remove blk-mq-tag.h

blk-mq-tag.h is always included by blk-mq.h, and causes recursive
inclusion hell with further changes.  Just merge it into blk-mq.h
instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20230413064057.707578-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index d9ed310..37f68c9 100644 (file)
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -129,7 +129,6 @@
 #include "elevator.h"
 #include "blk.h"
 #include "blk-mq.h"
-#include "blk-mq-tag.h"
 #include "blk-mq-sched.h"
 #include "bfq-iosched.h"
 #include "blk-wbt.h"

diff --git a/block/blk-flush.c b/block/blk-flush.c
index 53202ef..a13a1d6 100644 (file)
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -73,7 +73,6 @@
 
 #include "blk.h"
 #include "blk-mq.h"
-#include "blk-mq-tag.h"
 #include "blk-mq-sched.h"
 
 /* PREFLUSH/FUA sequences */

diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c
index 212a7f3..ace2bcf 100644 (file)
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@ -12,7 +12,6 @@
 #include "blk-mq.h"
 #include "blk-mq-debugfs.h"
 #include "blk-mq-sched.h"
-#include "blk-mq-tag.h"
 #include "blk-rq-qos.h"
 
 static int queue_poll_stat_show(void *data, struct seq_file *m)

diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c
index 06b312c..1029e8e 100644 (file)
--- a/block/blk-mq-sched.c
+++ b/block/blk-mq-sched.c
@@ -15,7 +15,6 @@
 #include "blk-mq.h"
 #include "blk-mq-debugfs.h"
 #include "blk-mq-sched.h"
-#include "blk-mq-tag.h"
 #include "blk-wbt.h"
 
 /*

diff --git a/block/blk-mq-sched.h b/block/blk-mq-sched.h
index 0250139..65cab6e 100644 (file)
--- a/block/blk-mq-sched.h
+++ b/block/blk-mq-sched.h
@@ -4,7 +4,6 @@
 
 #include "elevator.h"
 #include "blk-mq.h"
-#include "blk-mq-tag.h"
 
 #define MAX_SCHED_RQ (16 * BLKDEV_DEFAULT_RQ)
 

diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c
index 1b2b0d2..ba84caa 100644 (file)
--- a/block/blk-mq-sysfs.c
+++ b/block/blk-mq-sysfs.c
@@ -13,7 +13,6 @@
 #include <linux/blk-mq.h>
 #include "blk.h"
 #include "blk-mq.h"
-#include "blk-mq-tag.h"
 
 static void blk_mq_sysfs_release(struct kobject *kobj)
 {

diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index 9eb968e..1f8b065 100644 (file)
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -14,7 +14,6 @@
 #include "blk.h"
 #include "blk-mq.h"
 #include "blk-mq-sched.h"
-#include "blk-mq-tag.h"
 
 /*
  * Recalculate wakeup batch when tag is shared by hctx.

diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h
deleted file mode 100644 (file)
index 91ff37e..0000000
--- a/block/blk-mq-tag.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef INT_BLK_MQ_TAG_H
-#define INT_BLK_MQ_TAG_H
-
-struct blk_mq_alloc_data;
-
-extern struct blk_mq_tags *blk_mq_init_tags(unsigned int nr_tags,
-                                       unsigned int reserved_tags,
-                                       int node, int alloc_policy);
-extern void blk_mq_free_tags(struct blk_mq_tags *tags);
-extern int blk_mq_init_bitmaps(struct sbitmap_queue *bitmap_tags,
-                              struct sbitmap_queue *breserved_tags,
-                              unsigned int queue_depth,
-                              unsigned int reserved,
-                              int node, int alloc_policy);
-
-extern unsigned int blk_mq_get_tag(struct blk_mq_alloc_data *data);
-unsigned long blk_mq_get_tags(struct blk_mq_alloc_data *data, int nr_tags,
-                             unsigned int *offset);
-extern void blk_mq_put_tag(struct blk_mq_tags *tags, struct blk_mq_ctx *ctx,
-                          unsigned int tag);
-void blk_mq_put_tags(struct blk_mq_tags *tags, int *tag_array, int nr_tags);
-extern int blk_mq_tag_update_depth(struct blk_mq_hw_ctx *hctx,
-                                       struct blk_mq_tags **tags,
-                                       unsigned int depth, bool can_grow);
-extern void blk_mq_tag_resize_shared_tags(struct blk_mq_tag_set *set,
-                                            unsigned int size);
-extern void blk_mq_tag_update_sched_shared_tags(struct request_queue *q);
-
-extern void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags, bool);
-void blk_mq_queue_tag_busy_iter(struct request_queue *q, busy_tag_iter_fn *fn,
-               void *priv);
-void blk_mq_all_tag_iter(struct blk_mq_tags *tags, busy_tag_iter_fn *fn,
-               void *priv);
-
-static inline struct sbq_wait_state *bt_wait_ptr(struct sbitmap_queue *bt,
-                                                struct blk_mq_hw_ctx *hctx)
-{
-       if (!hctx)
-               return &bt->ws[0];
-       return sbq_wait_ptr(bt, &hctx->wait_index);
-}
-
-enum {
-       BLK_MQ_NO_TAG           = -1U,
-       BLK_MQ_TAG_MIN          = 1,
-       BLK_MQ_TAG_MAX          = BLK_MQ_NO_TAG - 1,
-};
-
-extern void __blk_mq_tag_busy(struct blk_mq_hw_ctx *);
-extern void __blk_mq_tag_idle(struct blk_mq_hw_ctx *);
-
-static inline void blk_mq_tag_busy(struct blk_mq_hw_ctx *hctx)
-{
-       if (hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED)
-               __blk_mq_tag_busy(hctx);
-}
-
-static inline void blk_mq_tag_idle(struct blk_mq_hw_ctx *hctx)
-{
-       if (!(hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED))
-               return;
-
-       __blk_mq_tag_idle(hctx);
-}
-
-static inline bool blk_mq_tag_is_reserved(struct blk_mq_tags *tags,
-                                         unsigned int tag)
-{
-       return tag < tags->nr_reserved_tags;
-}
-
-#endif

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 7908d19..545600b 100644 (file)
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -37,7 +37,6 @@
 #include "blk.h"
 #include "blk-mq.h"
 #include "blk-mq-debugfs.h"
-#include "blk-mq-tag.h"
 #include "blk-pm.h"
 #include "blk-stat.h"
 #include "blk-mq-sched.h"

diff --git a/block/blk-mq.h b/block/blk-mq.h
index ef59fee..7a041fe 100644 (file)
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -3,7 +3,6 @@
 #define INT_BLK_MQ_H
 
 #include "blk-stat.h"
-#include "blk-mq-tag.h"
 
 struct blk_mq_tag_set;
 
@@ -30,6 +29,12 @@ struct blk_mq_ctx {
        struct kobject          kobj;
 } ____cacheline_aligned_in_smp;
 
+enum {
+       BLK_MQ_NO_TAG           = -1U,
+       BLK_MQ_TAG_MIN          = 1,
+       BLK_MQ_TAG_MAX          = BLK_MQ_NO_TAG - 1,
+};
+
 void blk_mq_submit_bio(struct bio *bio);
 int blk_mq_poll(struct request_queue *q, blk_qc_t cookie, struct io_comp_batch *iob,
                unsigned int flags);
@@ -164,6 +169,60 @@ struct blk_mq_alloc_data {
        struct blk_mq_hw_ctx *hctx;
 };
 
+struct blk_mq_tags *blk_mq_init_tags(unsigned int nr_tags,
+               unsigned int reserved_tags, int node, int alloc_policy);
+void blk_mq_free_tags(struct blk_mq_tags *tags);
+int blk_mq_init_bitmaps(struct sbitmap_queue *bitmap_tags,
+               struct sbitmap_queue *breserved_tags, unsigned int queue_depth,
+               unsigned int reserved, int node, int alloc_policy);
+
+unsigned int blk_mq_get_tag(struct blk_mq_alloc_data *data);
+unsigned long blk_mq_get_tags(struct blk_mq_alloc_data *data, int nr_tags,
+               unsigned int *offset);
+void blk_mq_put_tag(struct blk_mq_tags *tags, struct blk_mq_ctx *ctx,
+               unsigned int tag);
+void blk_mq_put_tags(struct blk_mq_tags *tags, int *tag_array, int nr_tags);
+int blk_mq_tag_update_depth(struct blk_mq_hw_ctx *hctx,
+               struct blk_mq_tags **tags, unsigned int depth, bool can_grow);
+void blk_mq_tag_resize_shared_tags(struct blk_mq_tag_set *set,
+               unsigned int size);
+void blk_mq_tag_update_sched_shared_tags(struct request_queue *q);
+
+void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags, bool);
+void blk_mq_queue_tag_busy_iter(struct request_queue *q, busy_tag_iter_fn *fn,
+               void *priv);
+void blk_mq_all_tag_iter(struct blk_mq_tags *tags, busy_tag_iter_fn *fn,
+               void *priv);
+
+static inline struct sbq_wait_state *bt_wait_ptr(struct sbitmap_queue *bt,
+                                                struct blk_mq_hw_ctx *hctx)
+{
+       if (!hctx)
+               return &bt->ws[0];
+       return sbq_wait_ptr(bt, &hctx->wait_index);
+}
+
+void __blk_mq_tag_busy(struct blk_mq_hw_ctx *);
+void __blk_mq_tag_idle(struct blk_mq_hw_ctx *);
+
+static inline void blk_mq_tag_busy(struct blk_mq_hw_ctx *hctx)
+{
+       if (hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED)
+               __blk_mq_tag_busy(hctx);
+}
+
+static inline void blk_mq_tag_idle(struct blk_mq_hw_ctx *hctx)
+{
+       if (hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED)
+               __blk_mq_tag_idle(hctx);
+}
+
+static inline bool blk_mq_tag_is_reserved(struct blk_mq_tags *tags,
+                                         unsigned int tag)
+{
+       return tag < tags->nr_reserved_tags;
+}
+
 static inline bool blk_mq_is_shared_tags(unsigned int flags)
 {
        return flags & BLK_MQ_F_TAG_HCTX_SHARED;

diff --git a/block/blk-pm.c b/block/blk-pm.c
index 2dad62c..8af5ee5 100644 (file)
--- a/block/blk-pm.c
+++ b/block/blk-pm.c
@@ -5,7 +5,6 @@
 #include <linux/blkdev.h>
 #include <linux/pm_runtime.h>
 #include "blk-mq.h"
-#include "blk-mq-tag.h"
 
 /**
  * blk_pm_runtime_init - Block layer runtime PM initialization routine

diff --git a/block/kyber-iosched.c b/block/kyber-iosched.c
index 2146969..d0a4838 100644 (file)
--- a/block/kyber-iosched.c
+++ b/block/kyber-iosched.c
@@ -19,7 +19,6 @@
 #include "blk-mq.h"
 #include "blk-mq-debugfs.h"
 #include "blk-mq-sched.h"
-#include "blk-mq-tag.h"
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/kyber.h>

diff --git a/block/mq-deadline.c b/block/mq-deadline.c
index f10c2a0..a18526e 100644 (file)
--- a/block/mq-deadline.c
+++ b/block/mq-deadline.c
@@ -23,7 +23,6 @@
 #include "blk.h"
 #include "blk-mq.h"
 #include "blk-mq-debugfs.h"
-#include "blk-mq-tag.h"
 #include "blk-mq-sched.h"
 
 /*