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block: Use the new blk_opf_t type

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Use the new blk_opf_t type for arguments and variables that represent
request flags or a bitwise combination of a request operation and
request flags. Rename the function arguments and also a structure member
that hold a request operation and flags from 'rw' into 'opf'.

This patch does not change any functionality.

Cc: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Damien Le Moal <damien.lemoal@wdc.com>
Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220714180729.1065367-7-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Bart Van Assche 2022-07-14 11:06:32 -07:00 committed by Jens Axboe
parent 342a72a334
commit 16458cf3bd
14 changed files with 53 additions and 52 deletions
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10
block/bio.c
View File

@ -239,7 +239,7 @@ static void bio_free(struct bio *bio)
* when IO has completed, or when the bio is released.
*/
void bio_init(struct bio *bio, struct block_device *bdev, struct bio_vec *table,
unsigned short max_vecs, unsigned int opf)
unsigned short max_vecs, blk_opf_t opf)
{
bio->bi_next = NULL;
bio->bi_bdev = bdev;
@ -292,7 +292,7 @@ EXPORT_SYMBOL(bio_init);
* preserved are the ones that are initialized by bio_alloc_bioset(). See
* comment in struct bio.
*/
void bio_reset(struct bio *bio, struct block_device *bdev, unsigned int opf)
void bio_reset(struct bio *bio, struct block_device *bdev, blk_opf_t opf)
{
bio_uninit(bio);
memset(bio, 0, BIO_RESET_BYTES);
@ -341,7 +341,7 @@ void bio_chain(struct bio *bio, struct bio *parent)
EXPORT_SYMBOL(bio_chain);
struct bio *blk_next_bio(struct bio *bio, struct block_device *bdev,
unsigned int nr_pages, unsigned int opf, gfp_t gfp)
unsigned int nr_pages, blk_opf_t opf, gfp_t gfp)
{
struct bio *new = bio_alloc(bdev, nr_pages, opf, gfp);
@ -409,7 +409,7 @@ static void punt_bios_to_rescuer(struct bio_set *bs)
}
static struct bio *bio_alloc_percpu_cache(struct block_device *bdev,
unsigned short nr_vecs, unsigned int opf, gfp_t gfp,
unsigned short nr_vecs, blk_opf_t opf, gfp_t gfp,
struct bio_set *bs)
{
struct bio_alloc_cache *cache;
@ -468,7 +468,7 @@ static struct bio *bio_alloc_percpu_cache(struct block_device *bdev,
* Returns: Pointer to new bio on success, NULL on failure.
*/
struct bio *bio_alloc_bioset(struct block_device *bdev, unsigned short nr_vecs,
unsigned int opf, gfp_t gfp_mask,
blk_opf_t opf, gfp_t gfp_mask,
struct bio_set *bs)
{
gfp_t saved_gfp = gfp_mask;

8
block/blk-cgroup-rwstat.h
View File

@ -59,20 +59,20 @@ void blkg_rwstat_recursive_sum(struct blkcg_gq *blkg, struct blkcg_policy *pol,
* caller is responsible for synchronizing calls to this function.
*/
static inline void blkg_rwstat_add(struct blkg_rwstat *rwstat,
unsigned int op, uint64_t val)
blk_opf_t opf, uint64_t val)
{
struct percpu_counter *cnt;
if (op_is_discard(op))
if (op_is_discard(opf))
cnt = &rwstat->cpu_cnt[BLKG_RWSTAT_DISCARD];
else if (op_is_write(op))
else if (op_is_write(opf))
cnt = &rwstat->cpu_cnt[BLKG_RWSTAT_WRITE];
else
cnt = &rwstat->cpu_cnt[BLKG_RWSTAT_READ];
percpu_counter_add_batch(cnt, val, BLKG_STAT_CPU_BATCH);
if (op_is_sync(op))
if (op_is_sync(opf))
cnt = &rwstat->cpu_cnt[BLKG_RWSTAT_SYNC];
else
cnt = &rwstat->cpu_cnt[BLKG_RWSTAT_ASYNC];

2
block/blk-core.c
View File

@ -1203,7 +1203,7 @@ EXPORT_SYMBOL_GPL(blk_io_schedule);
int __init blk_dev_init(void)
{
BUILD_BUG_ON(REQ_OP_LAST >= (1 << REQ_OP_BITS));
BUILD_BUG_ON((__force u32)REQ_OP_LAST >= (1 << REQ_OP_BITS));
BUILD_BUG_ON(REQ_OP_BITS + REQ_FLAG_BITS > 8 *
sizeof_field(struct request, cmd_flags));
BUILD_BUG_ON(REQ_OP_BITS + REQ_FLAG_BITS > 8 *

6
block/blk-flush.c
View File

@ -94,7 +94,7 @@ enum {
};
static void blk_kick_flush(struct request_queue *q,
struct blk_flush_queue *fq, unsigned int flags);
struct blk_flush_queue *fq, blk_opf_t flags);
static inline struct blk_flush_queue *
blk_get_flush_queue(struct request_queue *q, struct blk_mq_ctx *ctx)
@ -173,7 +173,7 @@ static void blk_flush_complete_seq(struct request *rq,
{
struct request_queue *q = rq->q;
struct list_head *pending = &fq->flush_queue[fq->flush_pending_idx];
unsigned int cmd_flags;
blk_opf_t cmd_flags;
BUG_ON(rq->flush.seq & seq);
rq->flush.seq |= seq;
@ -290,7 +290,7 @@ bool is_flush_rq(struct request *rq)
*
*/
static void blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq,
unsigned int flags)
blk_opf_t flags)
{
struct list_head *pending = &fq->flush_queue[fq->flush_pending_idx];
struct request *first_rq =

6
block/blk-merge.c
View File

@ -712,7 +712,7 @@ static int ll_merge_requests_fn(struct request_queue *q, struct request *req,
*/
void blk_rq_set_mixed_merge(struct request *rq)
{
unsigned int ff = rq->cmd_flags & REQ_FAILFAST_MASK;
blk_opf_t ff = rq->cmd_flags & REQ_FAILFAST_MASK;
struct bio *bio;
if (rq->rq_flags & RQF_MIXED_MERGE)
@ -928,7 +928,7 @@ enum bio_merge_status {
static enum bio_merge_status bio_attempt_back_merge(struct request *req,
struct bio *bio, unsigned int nr_segs)
{
const int ff = bio->bi_opf & REQ_FAILFAST_MASK;
const blk_opf_t ff = bio->bi_opf & REQ_FAILFAST_MASK;
if (!ll_back_merge_fn(req, bio, nr_segs))
return BIO_MERGE_FAILED;
@ -952,7 +952,7 @@ static enum bio_merge_status bio_attempt_back_merge(struct request *req,
static enum bio_merge_status bio_attempt_front_merge(struct request *req,
struct bio *bio, unsigned int nr_segs)
{
const int ff = bio->bi_opf & REQ_FAILFAST_MASK;
const blk_opf_t ff = bio->bi_opf & REQ_FAILFAST_MASK;
if (!ll_front_merge_fn(req, bio, nr_segs))
return BIO_MERGE_FAILED;

4
block/blk-mq-debugfs.c
View File

@ -313,8 +313,8 @@ int __blk_mq_debugfs_rq_show(struct seq_file *m, struct request *rq)
else
seq_printf(m, "%s", op_str);
seq_puts(m, ", .cmd_flags=");
blk_flags_show(m, rq->cmd_flags & ~REQ_OP_MASK, cmd_flag_name,
ARRAY_SIZE(cmd_flag_name));
blk_flags_show(m, (__force unsigned int)(rq->cmd_flags & ~REQ_OP_MASK),
cmd_flag_name, ARRAY_SIZE(cmd_flag_name));
seq_puts(m, ", .rq_flags=");
blk_flags_show(m, (__force unsigned int)rq->rq_flags, rqf_name,
ARRAY_SIZE(rqf_name));

15
block/blk-mq.c
View File

@ -510,13 +510,13 @@ retry:
alloc_time_ns);
}
struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
struct request *blk_mq_alloc_request(struct request_queue *q, blk_opf_t opf,
blk_mq_req_flags_t flags)
{
struct blk_mq_alloc_data data = {
.q = q,
.flags = flags,
.cmd_flags = op,
.cmd_flags = opf,
.nr_tags = 1,
};
struct request *rq;
@ -540,12 +540,12 @@ out_queue_exit:
EXPORT_SYMBOL(blk_mq_alloc_request);
struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
unsigned int op, blk_mq_req_flags_t flags, unsigned int hctx_idx)
blk_opf_t opf, blk_mq_req_flags_t flags, unsigned int hctx_idx)
{
struct blk_mq_alloc_data data = {
.q = q,
.flags = flags,
.cmd_flags = op,
.cmd_flags = opf,
.nr_tags = 1,
};
u64 alloc_time_ns = 0;
@ -660,7 +660,7 @@ void blk_dump_rq_flags(struct request *rq, char *msg)
{
printk(KERN_INFO "%s: dev %s: flags=%llx\n", msg,
rq->q->disk ? rq->q->disk->disk_name : "?",
(unsigned long long) rq->cmd_flags);
(__force unsigned long long) rq->cmd_flags);
printk(KERN_INFO " sector %llu, nr/cnr %u/%u\n",
(unsigned long long)blk_rq_pos(rq),
@ -713,8 +713,9 @@ static void blk_print_req_error(struct request *req, blk_status_t status)
"phys_seg %u prio class %u\n",
blk_status_to_str(status),
req->q->disk ? req->q->disk->disk_name : "?",
blk_rq_pos(req), req_op(req), blk_op_str(req_op(req)),
req->cmd_flags & ~REQ_OP_MASK,
blk_rq_pos(req), (__force u32)req_op(req),
blk_op_str(req_op(req)),
(__force u32)(req->cmd_flags & ~REQ_OP_MASK),
req->nr_phys_segments,
IOPRIO_PRIO_CLASS(req->ioprio));
}

6
block/blk-mq.h
View File

@ -86,7 +86,7 @@ static inline struct blk_mq_hw_ctx *blk_mq_map_queue_type(struct request_queue *
return xa_load(&q->hctx_table, q->tag_set->map[type].mq_map[cpu]);
}
static inline enum hctx_type blk_mq_get_hctx_type(unsigned int opf)
static inline enum hctx_type blk_mq_get_hctx_type(blk_opf_t opf)
{
enum hctx_type type = HCTX_TYPE_DEFAULT;
@ -107,7 +107,7 @@ static inline enum hctx_type blk_mq_get_hctx_type(unsigned int opf)
* @ctx: software queue cpu ctx
*/
static inline struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *q,
unsigned int opf,
blk_opf_t opf,
struct blk_mq_ctx *ctx)
{
return ctx->hctxs[blk_mq_get_hctx_type(opf)];
@ -152,7 +152,7 @@ struct blk_mq_alloc_data {
struct request_queue *q;
blk_mq_req_flags_t flags;
unsigned int shallow_depth;
unsigned int cmd_flags;
blk_opf_t cmd_flags;
req_flags_t rq_flags;
/* allocate multiple requests/tags in one go */

16
block/blk-wbt.c
View File

@ -451,7 +451,7 @@ static bool close_io(struct rq_wb *rwb)
#define REQ_HIPRIO (REQ_SYNC | REQ_META | REQ_PRIO)
static inline unsigned int get_limit(struct rq_wb *rwb, unsigned long rw)
static inline unsigned int get_limit(struct rq_wb *rwb, blk_opf_t opf)
{
unsigned int limit;
@ -462,7 +462,7 @@ static inline unsigned int get_limit(struct rq_wb *rwb, unsigned long rw)
if (!rwb_enabled(rwb))
return UINT_MAX;
if ((rw & REQ_OP_MASK) == REQ_OP_DISCARD)
if ((opf & REQ_OP_MASK) == REQ_OP_DISCARD)
return rwb->wb_background;
/*
@ -473,9 +473,9 @@ static inline unsigned int get_limit(struct rq_wb *rwb, unsigned long rw)
* the idle limit, or go to normal if we haven't had competing
* IO for a bit.
*/
if ((rw & REQ_HIPRIO) || wb_recent_wait(rwb) || current_is_kswapd())
if ((opf & REQ_HIPRIO) || wb_recent_wait(rwb) || current_is_kswapd())
limit = rwb->rq_depth.max_depth;
else if ((rw & REQ_BACKGROUND) || close_io(rwb)) {
else if ((opf & REQ_BACKGROUND) || close_io(rwb)) {
/*
* If less than 100ms since we completed unrelated IO,
* limit us to half the depth for background writeback.
@ -490,13 +490,13 @@ static inline unsigned int get_limit(struct rq_wb *rwb, unsigned long rw)
struct wbt_wait_data {
struct rq_wb *rwb;
enum wbt_flags wb_acct;
unsigned long rw;
blk_opf_t opf;
};
static bool wbt_inflight_cb(struct rq_wait *rqw, void *private_data)
{
struct wbt_wait_data *data = private_data;
return rq_wait_inc_below(rqw, get_limit(data->rwb, data->rw));
return rq_wait_inc_below(rqw, get_limit(data->rwb, data->opf));
}
static void wbt_cleanup_cb(struct rq_wait *rqw, void *private_data)
@ -510,13 +510,13 @@ static void wbt_cleanup_cb(struct rq_wait *rqw, void *private_data)
* the timer to kick off queuing again.
*/
static void __wbt_wait(struct rq_wb *rwb, enum wbt_flags wb_acct,
unsigned long rw)
blk_opf_t opf)
{
struct rq_wait *rqw = get_rq_wait(rwb, wb_acct);
struct wbt_wait_data data = {
.rwb = rwb,
.wb_acct = wb_acct,
.rw = rw,
.opf = opf,
};
rq_qos_wait(rqw, &data, wbt_inflight_cb, wbt_cleanup_cb);

2
block/elevator.h
View File

@ -34,7 +34,7 @@ struct elevator_mq_ops {
int (*request_merge)(struct request_queue *q, struct request **, struct bio *);
void (*request_merged)(struct request_queue *, struct request *, enum elv_merge);
void (*requests_merged)(struct request_queue *, struct request *, struct request *);
void (*limit_depth)(unsigned int, struct blk_mq_alloc_data *);
void (*limit_depth)(blk_opf_t, struct blk_mq_alloc_data *);
void (*prepare_request)(struct request *);
void (*finish_request)(struct request *);
void (*insert_requests)(struct blk_mq_hw_ctx *, struct list_head *, bool);

12
block/fops.c
View File

@ -32,14 +32,14 @@ static int blkdev_get_block(struct inode *inode, sector_t iblock,
return 0;
}
static unsigned int dio_bio_write_op(struct kiocb *iocb)
static blk_opf_t dio_bio_write_op(struct kiocb *iocb)
{
unsigned int op = REQ_OP_WRITE | REQ_SYNC | REQ_IDLE;
blk_opf_t opf = REQ_OP_WRITE | REQ_SYNC | REQ_IDLE;
/* avoid the need for a I/O completion work item */
if (iocb->ki_flags & IOCB_DSYNC)
op |= REQ_FUA;
return op;
opf |= REQ_FUA;
return opf;
}
static bool blkdev_dio_unaligned(struct block_device *bdev, loff_t pos,
@ -175,7 +175,7 @@ static ssize_t __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
struct blkdev_dio *dio;
struct bio *bio;
bool is_read = (iov_iter_rw(iter) == READ), is_sync;
unsigned int opf = is_read ? REQ_OP_READ : dio_bio_write_op(iocb);
blk_opf_t opf = is_read ? REQ_OP_READ : dio_bio_write_op(iocb);
loff_t pos = iocb->ki_pos;
int ret = 0;
@ -297,7 +297,7 @@ static ssize_t __blkdev_direct_IO_async(struct kiocb *iocb,
{
struct block_device *bdev = iocb->ki_filp->private_data;
bool is_read = iov_iter_rw(iter) == READ;
unsigned int opf = is_read ? REQ_OP_READ : dio_bio_write_op(iocb);
blk_opf_t opf = is_read ? REQ_OP_READ : dio_bio_write_op(iocb);
struct blkdev_dio *dio;
struct bio *bio;
loff_t pos = iocb->ki_pos;

10
include/linux/bio.h
View File

@ -405,7 +405,7 @@ extern void bioset_exit(struct bio_set *);
extern int biovec_init_pool(mempool_t *pool, int pool_entries);
struct bio *bio_alloc_bioset(struct block_device *bdev, unsigned short nr_vecs,
unsigned int opf, gfp_t gfp_mask,
blk_opf_t opf, gfp_t gfp_mask,
struct bio_set *bs);
struct bio *bio_kmalloc(unsigned short nr_vecs, gfp_t gfp_mask);
extern void bio_put(struct bio *);
@ -418,7 +418,7 @@ int bio_init_clone(struct block_device *bdev, struct bio *bio,
extern struct bio_set fs_bio_set;
static inline struct bio *bio_alloc(struct block_device *bdev,
unsigned short nr_vecs, unsigned int opf, gfp_t gfp_mask)
unsigned short nr_vecs, blk_opf_t opf, gfp_t gfp_mask)
{
return bio_alloc_bioset(bdev, nr_vecs, opf, gfp_mask, &fs_bio_set);
}
@ -456,9 +456,9 @@ struct request_queue;
extern int submit_bio_wait(struct bio *bio);
void bio_init(struct bio *bio, struct block_device *bdev, struct bio_vec *table,
unsigned short max_vecs, unsigned int opf);
unsigned short max_vecs, blk_opf_t opf);
extern void bio_uninit(struct bio *);
void bio_reset(struct bio *bio, struct block_device *bdev, unsigned int opf);
void bio_reset(struct bio *bio, struct block_device *bdev, blk_opf_t opf);
void bio_chain(struct bio *, struct bio *);
int bio_add_page(struct bio *, struct page *, unsigned len, unsigned off);
@ -789,6 +789,6 @@ static inline void bio_clear_polled(struct bio *bio)
}
struct bio *blk_next_bio(struct bio *bio, struct block_device *bdev,
unsigned int nr_pages, unsigned int opf, gfp_t gfp);
unsigned int nr_pages, blk_opf_t opf, gfp_t gfp);
#endif /* __LINUX_BIO_H */

6
include/linux/blk-mq.h
View File

@ -80,7 +80,7 @@ struct request {
struct blk_mq_ctx *mq_ctx;
struct blk_mq_hw_ctx *mq_hctx;
unsigned int cmd_flags; /* op and common flags */
blk_opf_t cmd_flags; /* op and common flags */
req_flags_t rq_flags;
int tag;
@ -715,10 +715,10 @@ enum {
BLK_MQ_REQ_PM = (__force blk_mq_req_flags_t)(1 << 2),
};
struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
struct request *blk_mq_alloc_request(struct request_queue *q, blk_opf_t opf,
blk_mq_req_flags_t flags);
struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
unsigned int op, blk_mq_req_flags_t flags,
blk_opf_t opf, blk_mq_req_flags_t flags,
unsigned int hctx_idx);
/*

2
include/linux/blkdev.h
View File

@ -250,7 +250,7 @@ static inline int blk_validate_block_size(unsigned long bsize)
return 0;
}
static inline bool blk_op_is_passthrough(unsigned int op)
static inline bool blk_op_is_passthrough(blk_opf_t op)
{
op &= REQ_OP_MASK;
return op == REQ_OP_DRV_IN || op == REQ_OP_DRV_OUT;