From 95099d4622f8cb224d94e314c7a8e0df60b13f87 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 08:38:01 +0000
Subject: [PATCH] enable docker ppp

---
 kernel/drivers/block/aoe/aoecmd.c |   52 ++++++++++++++++++++++++----------------------------
 1 files changed, 24 insertions(+), 28 deletions(-)

diff --git a/kernel/drivers/block/aoe/aoecmd.c b/kernel/drivers/block/aoe/aoecmd.c
index 136dc50..313f0b9 100644
--- a/kernel/drivers/block/aoe/aoecmd.c
+++ b/kernel/drivers/block/aoe/aoecmd.c
@@ -7,7 +7,7 @@
 #include <linux/ata.h>
 #include <linux/slab.h>
 #include <linux/hdreg.h>
-#include <linux/blkdev.h>
+#include <linux/blk-mq.h>
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
 #include <linux/genhd.h>
@@ -813,24 +813,13 @@
 out:
 	if ((d->flags & DEVFL_KICKME) && d->blkq) {
 		d->flags &= ~DEVFL_KICKME;
-		d->blkq->request_fn(d->blkq);
+		blk_mq_run_hw_queues(d->blkq, true);
 	}
 
 	d->timer.expires = jiffies + TIMERTICK;
 	add_timer(&d->timer);
 
 	spin_unlock_irqrestore(&d->lock, flags);
-}
-
-static unsigned long
-rqbiocnt(struct request *r)
-{
-	struct bio *bio;
-	unsigned long n = 0;
-
-	__rq_for_each_bio(bio, r)
-		n++;
-	return n;
 }
 
 static void
@@ -847,6 +836,7 @@
 {
 	struct request *rq;
 	struct request_queue *q;
+	struct aoe_req *req;
 	struct buf *buf;
 	struct bio *bio;
 
@@ -857,13 +847,19 @@
 		return d->ip.buf;
 	rq = d->ip.rq;
 	if (rq == NULL) {
-		rq = blk_peek_request(q);
+		rq = list_first_entry_or_null(&d->rq_list, struct request,
+						queuelist);
 		if (rq == NULL)
 			return NULL;
-		blk_start_request(rq);
+		list_del_init(&rq->queuelist);
+		blk_mq_start_request(rq);
 		d->ip.rq = rq;
 		d->ip.nxbio = rq->bio;
-		rq->special = (void *) rqbiocnt(rq);
+
+		req = blk_mq_rq_to_pdu(rq);
+		req->nr_bios = 0;
+		__rq_for_each_bio(bio, rq)
+			req->nr_bios++;
 	}
 	buf = mempool_alloc(d->bufpool, GFP_ATOMIC);
 	if (buf == NULL) {
@@ -904,9 +900,7 @@
 		ssize = get_capacity(d->gd);
 		bd = bdget_disk(d->gd, 0);
 		if (bd) {
-			inode_lock(bd->bd_inode);
-			i_size_write(bd->bd_inode, (loff_t)ssize<<9);
-			inode_unlock(bd->bd_inode);
+			bd_set_nr_sectors(bd, ssize);
 			bdput(bd);
 		}
 		spin_lock_irq(&d->lock);
@@ -1045,6 +1039,7 @@
 	struct bio *bio;
 	int bok;
 	struct request_queue *q;
+	blk_status_t err = BLK_STS_OK;
 
 	q = d->blkq;
 	if (rq == d->ip.rq)
@@ -1052,26 +1047,27 @@
 	do {
 		bio = rq->bio;
 		bok = !fastfail && !bio->bi_status;
-	} while (__blk_end_request(rq, bok ? BLK_STS_OK : BLK_STS_IOERR, bio->bi_iter.bi_size));
+		if (!bok)
+			err = BLK_STS_IOERR;
+	} while (blk_update_request(rq, bok ? BLK_STS_OK : BLK_STS_IOERR, bio->bi_iter.bi_size));
+
+	__blk_mq_end_request(rq, err);
 
 	/* cf. http://lkml.org/lkml/2006/10/31/28 */
 	if (!fastfail)
-		__blk_run_queue(q);
+		blk_mq_run_hw_queues(q, true);
 }
 
 static void
 aoe_end_buf(struct aoedev *d, struct buf *buf)
 {
-	struct request *rq;
-	unsigned long n;
+	struct request *rq = buf->rq;
+	struct aoe_req *req = blk_mq_rq_to_pdu(rq);
 
 	if (buf == d->ip.buf)
 		d->ip.buf = NULL;
-	rq = buf->rq;
 	mempool_free(buf, d->bufpool);
-	n = (unsigned long) rq->special;
-	rq->special = (void *) --n;
-	if (n == 0)
+	if (--req->nr_bios == 0)
 		aoe_end_request(d, rq, 0);
 }
 
@@ -1137,7 +1133,7 @@
 			break;
 		}
 		bvcpy(skb, f->buf->bio, f->iter, n);
-		/* fall through */
+		fallthrough;
 	case ATA_CMD_PIO_WRITE:
 	case ATA_CMD_PIO_WRITE_EXT:
 		spin_lock_irq(&d->lock);

--
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