Merge tag 'LA.UM.9.12.r1-18100-SMxx50.QSSI14.0' of https://git.codelinaro.org/clo/la/kernel/msm-4.19 into android13-4.19-kona

"LA.UM.9.12.r1-18100-SMxx50.QSSI14.0"

* tag 'LA.UM.9.12.r1-18100-SMxx50.QSSI14.0' of https://git.codelinaro.org/clo/la/kernel/msm-4.19:
  msm: kgsl: Do not release dma and anon buffers if unmap fails
  mmc: sdhci-msm: Reset GCC_SDCC_BCR register for SDHC
  usb: phy: Enable clock before accessing EUD register space
  loop: Select I/O scheduler 'none' from inside add_disk()
  BACKPORT: loop: Fix missing discard support when using LOOP_CONFIGURE
  UPSTREAM: loop: unset GENHD_FL_NO_PART_SCAN on LOOP_CONFIGURE
  loop: Check for overflow while configuring loop
  BACKPORT: loop: Set correct device size when using LOOP_CONFIGURE
  cnss2: Add support for configuring calibration duration
  block: delete part_round_stats and switch to less precise counting
  BACKPORT: media: venus: hfi_parser: Add check for number of codecs
  BACKPORT: media: venus: hfi: add checks in capabilities from firmware
  BACKPORT: media: venus: hfi: fix the check in session buffer requirement
  BACKPORT: media: venus: hfi: add checks to perform sanity on queue pointers
  vidc_3x: venc: Add missing level in h263
  msm: kgsl: Do not free sharedmem if it cannot be unmapped
  vidc_3x: Return EBUSY if mbpf check fails
  soc: qcom: qmi_encdec: out of bound check for input buffer

 Conflicts:
	drivers/media/platform/qcom/venus/hfi_parser.c
	drivers/media/platform/qcom/venus/hfi_venus.c

Change-Id: I79781403e7d2e6417196eda9f67015c998d1e8d4

block/bio.c

@@ -1672,13 +1672,33 @@ void bio_check_pages_dirty(struct bio *bio)
 }
 EXPORT_SYMBOL_GPL(bio_check_pages_dirty);
 
+void update_io_ticks(struct hd_struct *part, unsigned long now)
+{
+	unsigned long stamp;
+	int cpu;
+again:
+	stamp = READ_ONCE(part->stamp);
+	if (unlikely(stamp != now)) {
+		if (likely(cmpxchg(&part->stamp, stamp, now) == stamp)) {
+			cpu = part_stat_lock();
+			__part_stat_add(cpu, part, io_ticks, 1);
+			part_stat_unlock();
+		}
+	}
+	if (part->partno) {
+		part = &part_to_disk(part)->part0;
+		goto again;
+	}
+}
+
 void generic_start_io_acct(struct request_queue *q, int op,
 			   unsigned long sectors, struct hd_struct *part)
 {
 	const int sgrp = op_stat_group(op);
-	int cpu = part_stat_lock();
+	int cpu;
 
-	part_round_stats(q, cpu, part);
+	cpu = part_stat_lock();
+	update_io_ticks(part, jiffies);
 	part_stat_inc(cpu, part, ios[sgrp]);
 	part_stat_add(cpu, part, sectors[sgrp], sectors);
 	part_inc_in_flight(q, part, op_is_write(op));
@@ -1690,12 +1710,15 @@ EXPORT_SYMBOL(generic_start_io_acct);
 void generic_end_io_acct(struct request_queue *q, int req_op,
 			 struct hd_struct *part, unsigned long start_time)
 {
-	unsigned long duration = jiffies - start_time;
+	unsigned long now = jiffies;
+	unsigned long duration = now - start_time;
 	const int sgrp = op_stat_group(req_op);
-	int cpu = part_stat_lock();
+	int cpu;
 
+	cpu = part_stat_lock();
+	update_io_ticks(part, now);
 	part_stat_add(cpu, part, nsecs[sgrp], jiffies_to_nsecs(duration));
-	part_round_stats(q, cpu, part);
+	part_stat_add(cpu, part, time_in_queue, duration);
 	part_dec_in_flight(q, part, op_is_write(req_op));
 
 	part_stat_unlock();

block/blk-core.c

@@ -1681,63 +1681,6 @@ static void add_acct_request(struct request_queue *q, struct request *rq,
 	__elv_add_request(q, rq, where);
 }
 
-static void part_round_stats_single(struct request_queue *q, int cpu,
-				    struct hd_struct *part, unsigned long now,
-				    unsigned int inflight)
-{
-	if (inflight) {
-		__part_stat_add(cpu, part, time_in_queue,
-				inflight * (now - part->stamp));
-		__part_stat_add(cpu, part, io_ticks, (now - part->stamp));
-	}
-	part->stamp = now;
-}
-
-/**
- * part_round_stats() - Round off the performance stats on a struct disk_stats.
- * @q: target block queue
- * @cpu: cpu number for stats access
- * @part: target partition
- *
- * The average IO queue length and utilisation statistics are maintained
- * by observing the current state of the queue length and the amount of
- * time it has been in this state for.
- *
- * Normally, that accounting is done on IO completion, but that can result
- * in more than a second's worth of IO being accounted for within any one
- * second, leading to >100% utilisation.  To deal with that, we call this
- * function to do a round-off before returning the results when reading
- * /proc/diskstats.  This accounts immediately for all queue usage up to
- * the current jiffies and restarts the counters again.
- */
-void part_round_stats(struct request_queue *q, int cpu, struct hd_struct *part)
-{
-	struct hd_struct *part2 = NULL;
-	unsigned long now = jiffies;
-	unsigned int inflight[2];
-	int stats = 0;
-
-	if (part->stamp != now)
-		stats |= 1;
-
-	if (part->partno) {
-		part2 = &part_to_disk(part)->part0;
-		if (part2->stamp != now)
-			stats |= 2;
-	}
-
-	if (!stats)
-		return;
-
-	part_in_flight(q, part, inflight);
-
-	if (stats & 2)
-		part_round_stats_single(q, cpu, part2, now, inflight[1]);
-	if (stats & 1)
-		part_round_stats_single(q, cpu, part, now, inflight[0]);
-}
-EXPORT_SYMBOL_GPL(part_round_stats);
-
 #ifdef CONFIG_PM
 static void blk_pm_put_request(struct request *rq)
 {
@@ -2775,9 +2718,10 @@ void blk_account_io_done(struct request *req, u64 now)
 		cpu = part_stat_lock();
 		part = req->part;
 
+		update_io_ticks(part, jiffies);
 		part_stat_inc(cpu, part, ios[sgrp]);
 		part_stat_add(cpu, part, nsecs[sgrp], now - req->start_time_ns);
-		part_round_stats(req->q, cpu, part);
+		part_stat_add(cpu, part, time_in_queue, nsecs_to_jiffies64(now - req->start_time_ns));
 		part_dec_in_flight(req->q, part, rq_data_dir(req));
 
 		hd_struct_put(part);
@@ -2837,11 +2781,12 @@ void blk_account_io_start(struct request *rq, bool new_io)
 			part = &rq->rq_disk->part0;
 			hd_struct_get(part);
 		}
-		part_round_stats(rq->q, cpu, part);
 		part_inc_in_flight(rq->q, part, rw);
 		rq->part = part;
 	}
 
+	update_io_ticks(part, jiffies);
+
 	part_stat_unlock();
 }
 

block/blk-merge.c

@@ -673,7 +673,6 @@ static void blk_account_io_merge(struct request *req)
 		cpu = part_stat_lock();
 		part = req->part;
 
-		part_round_stats(req->q, cpu, part);
 		part_dec_in_flight(req->q, part, rq_data_dir(req));
 
 		hd_struct_put(part);

block/genhd.c

@@ -1339,7 +1339,6 @@ static int diskstats_show(struct seq_file *seqf, void *v)
 	struct hd_struct *hd;
 	char buf[BDEVNAME_SIZE];
 	unsigned int inflight[2];
-	int cpu;
 
 	/*
 	if (&disk_to_dev(gp)->kobj.entry == block_class.devices.next)
@@ -1351,9 +1350,6 @@ static int diskstats_show(struct seq_file *seqf, void *v)
 
 	disk_part_iter_init(&piter, gp, DISK_PITER_INCL_EMPTY_PART0);
 	while ((hd = disk_part_iter_next(&piter))) {
-		cpu = part_stat_lock();
-		part_round_stats(gp->queue, cpu, hd);
-		part_stat_unlock();
 		part_in_flight(gp->queue, hd, inflight);
 		seq_printf(seqf, "%4d %7d %s "
 			   "%lu %lu %lu %u "

block/partition-generic.c

@@ -121,11 +121,7 @@ ssize_t part_stat_show(struct device *dev,
 	struct hd_struct *p = dev_to_part(dev);
 	struct request_queue *q = part_to_disk(p)->queue;
 	unsigned int inflight[2];
-	int cpu;
 
-	cpu = part_stat_lock();
-	part_round_stats(q, cpu, p);
-	part_stat_unlock();
 	part_in_flight(q, p, inflight);
 	return sprintf(buf,
 		"%8lu %8lu %8llu %8u "