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block: merge part_{inc,dev}_in_flight into their only callers
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part_inc_in_flight and part_dec_in_flight only have one caller each, and
those callers are purely for bio based drivers.  Merge each function into
the only caller, and remove the superflous blk-mq checks.

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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Christoph Hellwig authored and axboe committed May 19, 2020
1 parent 76268f3 commit 10ec5e8
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Showing 3 changed files with 8 additions and 26 deletions.
10 changes: 8 additions & 2 deletions block/bio.c
Original file line number Diff line number Diff line change
Expand Up @@ -1396,13 +1396,16 @@ 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 rw = op_is_write(op);

part_stat_lock();

update_io_ticks(part, jiffies, false);
part_stat_inc(part, ios[sgrp]);
part_stat_add(part, sectors[sgrp], sectors);
part_inc_in_flight(q, part, op_is_write(op));
part_stat_local_inc(part, in_flight[rw]);
if (part->partno)
part_stat_local_inc(&part_to_disk(part)->part0, in_flight[rw]);

part_stat_unlock();
}
Expand All @@ -1414,12 +1417,15 @@ void generic_end_io_acct(struct request_queue *q, int req_op,
unsigned long now = jiffies;
unsigned long duration = now - start_time;
const int sgrp = op_stat_group(req_op);
int rw = op_is_write(req_op);

part_stat_lock();

update_io_ticks(part, now, true);
part_stat_add(part, nsecs[sgrp], jiffies_to_nsecs(duration));
part_dec_in_flight(q, part, op_is_write(req_op));
part_stat_local_dec(part, in_flight[rw]);
if (part->partno)
part_stat_local_dec(&part_to_disk(part)->part0, in_flight[rw]);

part_stat_unlock();
}
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4 changes: 0 additions & 4 deletions block/blk.h
Original file line number Diff line number Diff line change
Expand Up @@ -345,10 +345,6 @@ void blk_queue_free_zone_bitmaps(struct request_queue *q);
static inline void blk_queue_free_zone_bitmaps(struct request_queue *q) {}
#endif

void part_dec_in_flight(struct request_queue *q, struct hd_struct *part,
int rw);
void part_inc_in_flight(struct request_queue *q, struct hd_struct *part,
int rw);
void update_io_ticks(struct hd_struct *part, unsigned long now, bool end);
struct hd_struct *disk_map_sector_rcu(struct gendisk *disk, sector_t sector);

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20 changes: 0 additions & 20 deletions block/genhd.c
Original file line number Diff line number Diff line change
Expand Up @@ -119,26 +119,6 @@ static void part_stat_read_all(struct hd_struct *part, struct disk_stats *stat)
}
#endif /* CONFIG_SMP */

void part_inc_in_flight(struct request_queue *q, struct hd_struct *part, int rw)
{
if (queue_is_mq(q))
return;

part_stat_local_inc(part, in_flight[rw]);
if (part->partno)
part_stat_local_inc(&part_to_disk(part)->part0, in_flight[rw]);
}

void part_dec_in_flight(struct request_queue *q, struct hd_struct *part, int rw)
{
if (queue_is_mq(q))
return;

part_stat_local_dec(part, in_flight[rw]);
if (part->partno)
part_stat_local_dec(&part_to_disk(part)->part0, in_flight[rw]);
}

static unsigned int part_in_flight(struct request_queue *q,
struct hd_struct *part)
{
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