requests which haven't aged too much on the queue. Potentially this priority
could even be exposed to applications in some manner, providing higher level
tunability. Time based aging avoids starvation of lower priority
- requests. Some bits in the bi_rw flags field in the bio structure are
+ requests. Some bits in the bi_opf flags field in the bio structure are
intended to be used for this priority information.
struct bio *bi_next; /* request queue link */
struct block_device *bi_bdev; /* target device */
unsigned long bi_flags; /* status, command, etc */
- unsigned long bi_rw; /* low bits: r/w, high: priority */
+ unsigned long bi_opf; /* low bits: r/w, high: priority */
unsigned int bi_vcnt; /* how may bio_vec's */
struct bvec_iter bi_iter; /* current index into bio_vec array */
<direction>: Either 'r' to corrupt reads or 'w' to corrupt writes.
'w' is incompatible with drop_writes.
<value>: The value (from 0-255) to write.
- <flags>: Perform the replacement only if bio->bi_rw has all the
+ <flags>: Perform the replacement only if bio->bi_opf has all the
selected flags set.
Examples:
bip->bip_bio = bio;
bio->bi_integrity = bip;
- bio->bi_rw |= REQ_INTEGRITY;
+ bio->bi_opf |= REQ_INTEGRITY;
return bip;
err:
*/
bio->bi_bdev = bio_src->bi_bdev;
bio_set_flag(bio, BIO_CLONED);
- bio->bi_rw = bio_src->bi_rw;
+ bio->bi_opf = bio_src->bi_opf;
bio->bi_iter = bio_src->bi_iter;
bio->bi_io_vec = bio_src->bi_io_vec;
if (!bio)
return NULL;
bio->bi_bdev = bio_src->bi_bdev;
- bio->bi_rw = bio_src->bi_rw;
+ bio->bi_opf = bio_src->bi_opf;
bio->bi_iter.bi_sector = bio_src->bi_iter.bi_sector;
bio->bi_iter.bi_size = bio_src->bi_iter.bi_size;
init_completion(&ret.event);
bio->bi_private = &ret;
bio->bi_end_io = submit_bio_wait_endio;
- bio->bi_rw |= REQ_SYNC;
+ bio->bi_opf |= REQ_SYNC;
submit_bio(bio);
wait_for_completion_io(&ret.event);
* Flush requests do not use the elevator so skip initialization.
* This allows a request to share the flush and elevator data.
*/
- if (bio->bi_rw & (REQ_PREFLUSH | REQ_FUA))
+ if (bio->bi_opf & (REQ_PREFLUSH | REQ_FUA))
return false;
return true;
bool bio_attempt_back_merge(struct request_queue *q, struct request *req,
struct bio *bio)
{
- const int ff = bio->bi_rw & REQ_FAILFAST_MASK;
+ const int ff = bio->bi_opf & REQ_FAILFAST_MASK;
if (!ll_back_merge_fn(q, req, bio))
return false;
bool bio_attempt_front_merge(struct request_queue *q, struct request *req,
struct bio *bio)
{
- const int ff = bio->bi_rw & REQ_FAILFAST_MASK;
+ const int ff = bio->bi_opf & REQ_FAILFAST_MASK;
if (!ll_front_merge_fn(q, req, bio))
return false;
{
req->cmd_type = REQ_TYPE_FS;
- req->cmd_flags |= bio->bi_rw & REQ_COMMON_MASK;
- if (bio->bi_rw & REQ_RAHEAD)
+ req->cmd_flags |= bio->bi_opf & REQ_COMMON_MASK;
+ if (bio->bi_opf & REQ_RAHEAD)
req->cmd_flags |= REQ_FAILFAST_MASK;
req->errors = 0;
static blk_qc_t blk_queue_bio(struct request_queue *q, struct bio *bio)
{
- const bool sync = !!(bio->bi_rw & REQ_SYNC);
+ const bool sync = !!(bio->bi_opf & REQ_SYNC);
struct blk_plug *plug;
int el_ret, rw_flags = 0, where = ELEVATOR_INSERT_SORT;
struct request *req;
return BLK_QC_T_NONE;
}
- if (bio->bi_rw & (REQ_PREFLUSH | REQ_FUA)) {
+ if (bio->bi_opf & (REQ_PREFLUSH | REQ_FUA)) {
spin_lock_irq(q->queue_lock);
where = ELEVATOR_INSERT_FLUSH;
goto get_rq;
/*
* Add in META/PRIO flags, if set, before we get to the IO scheduler
*/
- rw_flags |= (bio->bi_rw & (REQ_META | REQ_PRIO));
+ rw_flags |= (bio->bi_opf & (REQ_META | REQ_PRIO));
/*
* Grab a free request. This is might sleep but can not fail.
printk(KERN_INFO "attempt to access beyond end of device\n");
printk(KERN_INFO "%s: rw=%d, want=%Lu, limit=%Lu\n",
bdevname(bio->bi_bdev, b),
- bio->bi_rw,
+ bio->bi_opf,
(unsigned long long)bio_end_sector(bio),
(long long)(i_size_read(bio->bi_bdev->bd_inode) >> 9));
}
* drivers without flush support don't have to worry
* about them.
*/
- if ((bio->bi_rw & (REQ_PREFLUSH | REQ_FUA)) &&
+ if ((bio->bi_opf & (REQ_PREFLUSH | REQ_FUA)) &&
!test_bit(QUEUE_FLAG_WC, &q->queue_flags)) {
- bio->bi_rw &= ~(REQ_PREFLUSH | REQ_FUA);
+ bio->bi_opf &= ~(REQ_PREFLUSH | REQ_FUA);
if (!nr_sectors) {
err = 0;
goto end_io;
* one.
*/
for (bio = rq->bio; bio; bio = bio->bi_next) {
- if ((bio->bi_rw & ff) != ff)
+ if ((bio->bi_opf & ff) != ff)
break;
bytes += bio->bi_iter.bi_size;
}
/* mixed attributes always follow the first bio */
if (req->cmd_flags & REQ_MIXED_MERGE) {
req->cmd_flags &= ~REQ_FAILFAST_MASK;
- req->cmd_flags |= req->bio->bi_rw & REQ_FAILFAST_MASK;
+ req->cmd_flags |= req->bio->bi_opf & REQ_FAILFAST_MASK;
}
/*
if (split) {
/* there isn't chance to merge the splitted bio */
- split->bi_rw |= REQ_NOMERGE;
+ split->bi_opf |= REQ_NOMERGE;
bio_chain(split, *bio);
trace_block_split(q, split, (*bio)->bi_iter.bi_sector);
* Distributes the attributs to each bio.
*/
for (bio = rq->bio; bio; bio = bio->bi_next) {
- WARN_ON_ONCE((bio->bi_rw & REQ_FAILFAST_MASK) &&
- (bio->bi_rw & REQ_FAILFAST_MASK) != ff);
- bio->bi_rw |= ff;
+ WARN_ON_ONCE((bio->bi_opf & REQ_FAILFAST_MASK) &&
+ (bio->bi_opf & REQ_FAILFAST_MASK) != ff);
+ bio->bi_opf |= ff;
}
rq->cmd_flags |= REQ_MIXED_MERGE;
}
ctx = blk_mq_get_ctx(q);
hctx = q->mq_ops->map_queue(q, ctx->cpu);
- if (rw_is_sync(bio_op(bio), bio->bi_rw))
+ if (rw_is_sync(bio_op(bio), bio->bi_opf))
op_flags |= REQ_SYNC;
trace_block_getrq(q, bio, op);
*/
static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
{
- const int is_sync = rw_is_sync(bio_op(bio), bio->bi_rw);
- const int is_flush_fua = bio->bi_rw & (REQ_PREFLUSH | REQ_FUA);
+ const int is_sync = rw_is_sync(bio_op(bio), bio->bi_opf);
+ const int is_flush_fua = bio->bi_opf & (REQ_PREFLUSH | REQ_FUA);
struct blk_map_ctx data;
struct request *rq;
unsigned int request_count = 0;
*/
static blk_qc_t blk_sq_make_request(struct request_queue *q, struct bio *bio)
{
- const int is_sync = rw_is_sync(bio_op(bio), bio->bi_rw);
- const int is_flush_fua = bio->bi_rw & (REQ_PREFLUSH | REQ_FUA);
+ const int is_sync = rw_is_sync(bio_op(bio), bio->bi_opf);
+ const int is_flush_fua = bio->bi_opf & (REQ_PREFLUSH | REQ_FUA);
struct blk_plug *plug;
unsigned int request_count = 0;
struct blk_map_ctx data;
* second time when it eventually gets issued. Set it when a bio
* is being charged to a tg.
*/
- if (!(bio->bi_rw & REQ_THROTTLED))
- bio->bi_rw |= REQ_THROTTLED;
+ if (!(bio->bi_opf & REQ_THROTTLED))
+ bio->bi_opf |= REQ_THROTTLED;
}
/**
WARN_ON_ONCE(!rcu_read_lock_held());
/* see throtl_charge_bio() */
- if ((bio->bi_rw & REQ_THROTTLED) || !tg->has_rules[rw])
+ if ((bio->bi_opf & REQ_THROTTLED) || !tg->has_rules[rw])
goto out;
spin_lock_irq(q->queue_lock);
* being issued.
*/
if (!throttled)
- bio->bi_rw &= ~REQ_THROTTLED;
+ bio->bi_opf &= ~REQ_THROTTLED;
return throttled;
}
*/
static inline bool cfq_bio_sync(struct bio *bio)
{
- return bio_data_dir(bio) == READ || (bio->bi_rw & REQ_SYNC);
+ return bio_data_dir(bio) == READ || (bio->bi_opf & REQ_SYNC);
}
/*
static void cfq_bio_merged(struct request_queue *q, struct request *req,
struct bio *bio)
{
- cfqg_stats_update_io_merged(RQ_CFQG(req), bio_op(bio), bio->bi_rw);
+ cfqg_stats_update_io_merged(RQ_CFQG(req), bio_op(bio), bio->bi_opf);
}
static void
* Process a single bvec of a bio.
*/
static int brd_do_bvec(struct brd_device *brd, struct page *page,
- unsigned int len, unsigned int off, int op,
+ unsigned int len, unsigned int off, bool is_write,
sector_t sector)
{
void *mem;
int err = 0;
- if (op_is_write(op)) {
+ if (is_write) {
err = copy_to_brd_setup(brd, sector, len);
if (err)
goto out;
}
mem = kmap_atomic(page);
- if (!op_is_write(op)) {
+ if (!is_write) {
copy_from_brd(mem + off, brd, sector, len);
flush_dcache_page(page);
} else {
unsigned int len = bvec.bv_len;
int err;
- err = brd_do_bvec(brd, bvec.bv_page, len,
- bvec.bv_offset, bio_op(bio), sector);
+ err = brd_do_bvec(brd, bvec.bv_page, len, bvec.bv_offset,
+ op_is_write(bio_op(bio)), sector);
if (err)
goto io_error;
sector += len >> SECTOR_SHIFT;
}
static int brd_rw_page(struct block_device *bdev, sector_t sector,
- struct page *page, int op)
+ struct page *page, bool is_write)
{
struct brd_device *brd = bdev->bd_disk->private_data;
- int err = brd_do_bvec(brd, page, PAGE_SIZE, 0, op, sector);
- page_endio(page, op, err);
+ int err = brd_do_bvec(brd, page, PAGE_SIZE, 0, is_write, sector);
+ page_endio(page, is_write, err);
return err;
}
struct bio *bio)
{
if (connection->agreed_pro_version >= 95)
- return (bio->bi_rw & REQ_SYNC ? DP_RW_SYNC : 0) |
- (bio->bi_rw & REQ_FUA ? DP_FUA : 0) |
- (bio->bi_rw & REQ_PREFLUSH ? DP_FLUSH : 0) |
+ return (bio->bi_opf & REQ_SYNC ? DP_RW_SYNC : 0) |
+ (bio->bi_opf & REQ_FUA ? DP_FUA : 0) |
+ (bio->bi_opf & REQ_PREFLUSH ? DP_FLUSH : 0) |
(bio_op(bio) == REQ_OP_WRITE_SAME ? DP_WSAME : 0) |
(bio_op(bio) == REQ_OP_DISCARD ? DP_DISCARD : 0);
else
- return bio->bi_rw & REQ_SYNC ? DP_RW_SYNC : 0;
+ return bio->bi_opf & REQ_SYNC ? DP_RW_SYNC : 0;
}
/* Used to send write or TRIM aka REQ_DISCARD requests
* drbd_submit_peer_request()
* @device: DRBD device.
* @peer_req: peer request
- * @rw: flag field, see bio->bi_rw
+ * @rw: flag field, see bio->bi_opf
*
* May spread the pages to multiple bios,
* depending on bio_add_page restrictions.
*/
if (!ok &&
bio_op(req->master_bio) == REQ_OP_READ &&
- !(req->master_bio->bi_rw & REQ_RAHEAD) &&
+ !(req->master_bio->bi_opf & REQ_RAHEAD) &&
!list_empty(&req->tl_requests))
req->rq_state |= RQ_POSTPONED;
* replicating, in which case there is no point. */
if (unlikely(req->i.size == 0)) {
/* The only size==0 bios we expect are empty flushes. */
- D_ASSERT(device, req->master_bio->bi_rw & REQ_PREFLUSH);
+ D_ASSERT(device, req->master_bio->bi_opf & REQ_PREFLUSH);
if (remote)
_req_mod(req, QUEUE_AS_DRBD_BARRIER);
return remote;
if (bio_op(bio) != REQ_OP_READ)
type = DRBD_FAULT_DT_WR;
- else if (bio->bi_rw & REQ_RAHEAD)
+ else if (bio->bi_opf & REQ_RAHEAD)
type = DRBD_FAULT_DT_RA;
else
type = DRBD_FAULT_DT_RD;
what = DISCARD_COMPLETED_WITH_ERROR;
break;
case REQ_OP_READ:
- if (bio->bi_rw & REQ_RAHEAD)
+ if (bio->bi_opf & REQ_RAHEAD)
what = READ_AHEAD_COMPLETED_WITH_ERROR;
else
what = READ_COMPLETED_WITH_ERROR;
bio_reset(pkt->bio);
pkt->bio->bi_bdev = pd->bdev;
- pkt->bio->bi_rw = REQ_WRITE;
+ bio_set_op_attrs(pkt->bio, REQ_OP_WRITE, 0);
pkt->bio->bi_iter.bi_sector = new_sector;
pkt->bio->bi_iter.bi_size = pkt->frames * CD_FRAMESIZE;
pkt->bio->bi_vcnt = pkt->frames;
*card->biotail = bio;
bio->bi_next = NULL;
card->biotail = &bio->bi_next;
- if (bio->bi_rw & REQ_SYNC || !mm_check_plugged(card))
+ if (bio->bi_opf & REQ_SYNC || !mm_check_plugged(card))
activate(card);
spin_unlock_irq(&card->lock);
}
static int zram_bvec_rw(struct zram *zram, struct bio_vec *bvec, u32 index,
- int offset, int op)
+ int offset, bool is_write)
{
unsigned long start_time = jiffies;
+ int rw_acct = is_write ? REQ_OP_WRITE : REQ_OP_READ;
int ret;
- generic_start_io_acct(op, bvec->bv_len >> SECTOR_SHIFT,
+ generic_start_io_acct(rw_acct, bvec->bv_len >> SECTOR_SHIFT,
&zram->disk->part0);
- if (!op_is_write(op)) {
+ if (!is_write) {
atomic64_inc(&zram->stats.num_reads);
ret = zram_bvec_read(zram, bvec, index, offset);
} else {
ret = zram_bvec_write(zram, bvec, index, offset);
}
- generic_end_io_acct(op, &zram->disk->part0, start_time);
+ generic_end_io_acct(rw_acct, &zram->disk->part0, start_time);
if (unlikely(ret)) {
- if (!op_is_write(op))
+ if (!is_write)
atomic64_inc(&zram->stats.failed_reads);
else
atomic64_inc(&zram->stats.failed_writes);
bv.bv_offset = bvec.bv_offset;
if (zram_bvec_rw(zram, &bv, index, offset,
- bio_op(bio)) < 0)
+ op_is_write(bio_op(bio))) < 0)
goto out;
bv.bv_len = bvec.bv_len - max_transfer_size;
bv.bv_offset += max_transfer_size;
if (zram_bvec_rw(zram, &bv, index + 1, 0,
- bio_op(bio)) < 0)
+ op_is_write(bio_op(bio))) < 0)
goto out;
} else
if (zram_bvec_rw(zram, &bvec, index, offset,
- bio_op(bio)) < 0)
+ op_is_write(bio_op(bio))) < 0)
goto out;
update_position(&index, &offset, &bvec);
}
static int zram_rw_page(struct block_device *bdev, sector_t sector,
- struct page *page, int op)
+ struct page *page, bool is_write)
{
int offset, err = -EIO;
u32 index;
bv.bv_len = PAGE_SIZE;
bv.bv_offset = 0;
- err = zram_bvec_rw(zram, &bv, index, offset, op);
+ err = zram_bvec_rw(zram, &bv, index, offset, is_write);
put_zram:
zram_meta_put(zram);
out:
* (e.g., SetPageError, set_page_dirty and extra works).
*/
if (err == 0)
- page_endio(page, op, 0);
+ page_endio(page, is_write, 0);
return err;
}
* Journal writes are marked REQ_PREFLUSH; if the original write was a
* flush, it'll wait on the journal write.
*/
- bio->bi_rw &= ~(REQ_PREFLUSH|REQ_FUA);
+ bio->bi_opf &= ~(REQ_PREFLUSH|REQ_FUA);
do {
unsigned i;
if (!congested &&
mode == CACHE_MODE_WRITEBACK &&
op_is_write(bio_op(bio)) &&
- (bio->bi_rw & REQ_SYNC))
+ (bio->bi_opf & REQ_SYNC))
goto rescale;
spin_lock(&dc->io_lock);
s->iop.write_prio = 0;
s->iop.error = 0;
s->iop.flags = 0;
- s->iop.flush_journal = (bio->bi_rw & (REQ_PREFLUSH|REQ_FUA)) != 0;
+ s->iop.flush_journal = (bio->bi_opf & (REQ_PREFLUSH|REQ_FUA)) != 0;
s->iop.wq = bcache_wq;
return s;
goto out_submit;
}
- if (!(bio->bi_rw & REQ_RAHEAD) &&
- !(bio->bi_rw & REQ_META) &&
+ if (!(bio->bi_opf & REQ_RAHEAD) &&
+ !(bio->bi_opf & REQ_META) &&
s->iop.c->gc_stats.in_use < CUTOFF_CACHE_READA)
reada = min_t(sector_t, dc->readahead >> 9,
bdev_sectors(bio->bi_bdev) - bio_end_sector(bio));
bch_writeback_add(dc);
s->iop.bio = bio;
- if (bio->bi_rw & REQ_PREFLUSH) {
+ if (bio->bi_opf & REQ_PREFLUSH) {
/* Also need to send a flush to the backing device */
struct bio *flush = bio_alloc_bioset(GFP_NOIO, 0,
dc->disk.bio_split);
for (i = 0; i < KEY_PTRS(k); i++) {
struct bio *bio = bch_bbio_alloc(c);
- bio->bi_rw = REQ_SYNC|REQ_META|op_flags;
+ bio->bi_opf = REQ_SYNC | REQ_META | op_flags;
bio->bi_iter.bi_size = KEY_SIZE(k) << 9;
bio->bi_end_io = uuid_endio;
if (would_skip)
return false;
- return bio->bi_rw & REQ_SYNC ||
+ return bio->bi_opf & REQ_SYNC ||
in_use <= CUTOFF_WRITEBACK;
}
spin_lock_irqsave(&cache->lock, flags);
if (cache->need_tick_bio &&
- !(bio->bi_rw & (REQ_FUA | REQ_PREFLUSH)) &&
+ !(bio->bi_opf & (REQ_FUA | REQ_PREFLUSH)) &&
bio_op(bio) != REQ_OP_DISCARD) {
pb->tick = true;
cache->need_tick_bio = false;
static int bio_triggers_commit(struct cache *cache, struct bio *bio)
{
- return bio->bi_rw & (REQ_PREFLUSH | REQ_FUA);
+ return bio->bi_opf & (REQ_PREFLUSH | REQ_FUA);
}
/*
static bool discard_or_flush(struct bio *bio)
{
return bio_op(bio) == REQ_OP_DISCARD ||
- bio->bi_rw & (REQ_PREFLUSH | REQ_FUA);
+ bio->bi_opf & (REQ_PREFLUSH | REQ_FUA);
}
static void __cell_defer(struct cache *cache, struct dm_bio_prison_cell *cell)
bio = bio_list_pop(&bios);
- if (bio->bi_rw & REQ_PREFLUSH)
+ if (bio->bi_opf & REQ_PREFLUSH)
process_flush_bio(cache, bio);
else if (bio_op(bio) == REQ_OP_DISCARD)
process_discard_bio(cache, &structs, bio);
clone->bi_private = io;
clone->bi_end_io = crypt_endio;
clone->bi_bdev = cc->dev->bdev;
- bio_set_op_attrs(clone, bio_op(io->base_bio), io->base_bio->bi_rw);
+ bio_set_op_attrs(clone, bio_op(io->base_bio), io->base_bio->bi_opf);
}
static int kcryptd_io_read(struct dm_crypt_io *io, gfp_t gfp)
* - for REQ_PREFLUSH device-mapper core ensures that no IO is in-flight
* - for REQ_OP_DISCARD caller must use flush if IO ordering matters
*/
- if (unlikely(bio->bi_rw & REQ_PREFLUSH ||
+ if (unlikely(bio->bi_opf & REQ_PREFLUSH ||
bio_op(bio) == REQ_OP_DISCARD)) {
bio->bi_bdev = cc->dev->bdev;
if (bio_sectors(bio))
/*
* REQ_PREFLUSH bios carry no data, so we're not interested in them.
*/
- if (!(bio->bi_rw & REQ_PREFLUSH) &&
+ if (!(bio->bi_opf & REQ_PREFLUSH) &&
(bio_data_dir(bio) == WRITE) &&
!metadata_current_marked(era->md, block)) {
defer_bio(era, bio);
#define DM_MSG_PREFIX "flakey"
#define all_corrupt_bio_flags_match(bio, fc) \
- (((bio)->bi_rw & (fc)->corrupt_bio_flags) == (fc)->corrupt_bio_flags)
+ (((bio)->bi_opf & (fc)->corrupt_bio_flags) == (fc)->corrupt_bio_flags)
/*
* Flakey: Used for testing only, simulates intermittent,
data[fc->corrupt_bio_byte - 1] = fc->corrupt_bio_value;
DMDEBUG("Corrupting data bio=%p by writing %u to byte %u "
- "(rw=%c bi_rw=%u bi_sector=%llu cur_bytes=%u)\n",
+ "(rw=%c bi_opf=%u bi_sector=%llu cur_bytes=%u)\n",
bio, fc->corrupt_bio_value, fc->corrupt_bio_byte,
- (bio_data_dir(bio) == WRITE) ? 'w' : 'r', bio->bi_rw,
+ (bio_data_dir(bio) == WRITE) ? 'w' : 'r', bio->bi_opf,
(unsigned long long)bio->bi_iter.bi_sector, bio_bytes);
}
}
* New collapsed (a)synchronous interface.
*
* If the IO is asynchronous (i.e. it has notify.fn), you must either unplug
- * the queue with blk_unplug() some time later or set REQ_SYNC in io_req->bi_rw.
- * If you fail to do one of these, the IO will be submitted to the disk after
- * q->unplug_delay, which defaults to 3ms in blk-settings.c.
+ * the queue with blk_unplug() some time later or set REQ_SYNC in
+ * io_req->bi_opf. If you fail to do one of these, the IO will be submitted to
+ * the disk after q->unplug_delay, which defaults to 3ms in blk-settings.c.
*/
int dm_io(struct dm_io_request *io_req, unsigned num_regions,
struct dm_io_region *where, unsigned long *sync_error_bits)
struct bio_vec bv;
size_t alloc_size;
int i = 0;
- bool flush_bio = (bio->bi_rw & REQ_PREFLUSH);
- bool fua_bio = (bio->bi_rw & REQ_FUA);
+ bool flush_bio = (bio->bi_opf & REQ_PREFLUSH);
+ bool fua_bio = (bio->bi_opf & REQ_FUA);
bool discard_bio = (bio_op(bio) == REQ_OP_DISCARD);
pb->block = NULL;
bio->bi_error = 0;
bio->bi_bdev = pgpath->path.dev->bdev;
- bio->bi_rw |= REQ_FAILFAST_TRANSPORT;
+ bio->bi_opf |= REQ_FAILFAST_TRANSPORT;
if (pgpath->pg->ps.type->start_io)
pgpath->pg->ps.type->start_io(&pgpath->pg->ps,
struct mirror *m;
struct dm_io_request io_req = {
.bi_op = REQ_OP_WRITE,
- .bi_op_flags = bio->bi_rw & WRITE_FLUSH_FUA,
+ .bi_op_flags = bio->bi_opf & WRITE_FLUSH_FUA,
.mem.type = DM_IO_BIO,
.mem.ptr.bio = bio,
.notify.fn = write_callback,
bio_list_init(&requeue);
while ((bio = bio_list_pop(writes))) {
- if ((bio->bi_rw & REQ_PREFLUSH) ||
+ if ((bio->bi_opf & REQ_PREFLUSH) ||
(bio_op(bio) == REQ_OP_DISCARD)) {
bio_list_add(&sync, bio);
continue;
* If region is not in-sync queue the bio.
*/
if (!r || (r == -EWOULDBLOCK)) {
- if (bio->bi_rw & REQ_RAHEAD)
+ if (bio->bi_opf & REQ_RAHEAD)
return -EWOULDBLOCK;
queue_bio(ms, bio, rw);
* We need to dec pending if this was a write.
*/
if (rw == WRITE) {
- if (!(bio->bi_rw & REQ_PREFLUSH) &&
+ if (!(bio->bi_opf & REQ_PREFLUSH) &&
bio_op(bio) != REQ_OP_DISCARD)
dm_rh_dec(ms->rh, bio_record->write_region);
return error;
if (error == -EOPNOTSUPP)
goto out;
- if ((error == -EWOULDBLOCK) && (bio->bi_rw & REQ_RAHEAD))
+ if ((error == -EWOULDBLOCK) && (bio->bi_opf & REQ_RAHEAD))
goto out;
if (unlikely(error)) {
region_t region = dm_rh_bio_to_region(rh, bio);
int recovering = 0;
- if (bio->bi_rw & REQ_PREFLUSH) {
+ if (bio->bi_opf & REQ_PREFLUSH) {
rh->flush_failure = 1;
return;
}
struct bio *bio;
for (bio = bios->head; bio; bio = bio->bi_next) {
- if (bio->bi_rw & REQ_PREFLUSH || bio_op(bio) == REQ_OP_DISCARD)
+ if (bio->bi_opf & REQ_PREFLUSH || bio_op(bio) == REQ_OP_DISCARD)
continue;
rh_inc(rh, dm_rh_bio_to_region(rh, bio));
}
init_tracked_chunk(bio);
- if (bio->bi_rw & REQ_PREFLUSH) {
+ if (bio->bi_opf & REQ_PREFLUSH) {
bio->bi_bdev = s->cow->bdev;
return DM_MAPIO_REMAPPED;
}
init_tracked_chunk(bio);
- if (bio->bi_rw & REQ_PREFLUSH) {
+ if (bio->bi_opf & REQ_PREFLUSH) {
if (!dm_bio_get_target_bio_nr(bio))
bio->bi_bdev = s->origin->bdev;
else
bio->bi_bdev = o->dev->bdev;
- if (unlikely(bio->bi_rw & REQ_PREFLUSH))
+ if (unlikely(bio->bi_opf & REQ_PREFLUSH))
return DM_MAPIO_REMAPPED;
if (bio_data_dir(bio) != WRITE)
uint32_t stripe;
unsigned target_bio_nr;
- if (bio->bi_rw & REQ_PREFLUSH) {
+ if (bio->bi_opf & REQ_PREFLUSH) {
target_bio_nr = dm_bio_get_target_bio_nr(bio);
BUG_ON(target_bio_nr >= sc->stripes);
bio->bi_bdev = sc->stripe[target_bio_nr].dev->bdev;
if (!error)
return 0; /* I/O complete */
- if ((error == -EWOULDBLOCK) && (bio->bi_rw & REQ_RAHEAD))
+ if ((error == -EWOULDBLOCK) && (bio->bi_opf & REQ_RAHEAD))
return error;
if (error == -EOPNOTSUPP)
static int bio_triggers_commit(struct thin_c *tc, struct bio *bio)
{
- return (bio->bi_rw & (REQ_PREFLUSH | REQ_FUA)) &&
+ return (bio->bi_opf & (REQ_PREFLUSH | REQ_FUA)) &&
dm_thin_changed_this_transaction(tc->td);
}
struct bio *bio;
while ((bio = bio_list_pop(&cell->bios))) {
- if (bio->bi_rw & (REQ_PREFLUSH | REQ_FUA) ||
+ if (bio->bi_opf & (REQ_PREFLUSH | REQ_FUA) ||
bio_op(bio) == REQ_OP_DISCARD)
bio_list_add(&info->defer_bios, bio);
else {
while ((bio = bio_list_pop(&cell->bios))) {
if ((bio_data_dir(bio) == WRITE) ||
- (bio->bi_rw & (REQ_PREFLUSH | REQ_FUA) ||
+ (bio->bi_opf & (REQ_PREFLUSH | REQ_FUA) ||
bio_op(bio) == REQ_OP_DISCARD))
bio_list_add(&info->defer_bios, bio);
else {
return DM_MAPIO_SUBMITTED;
}
- if (bio->bi_rw & (REQ_PREFLUSH | REQ_FUA) ||
+ if (bio->bi_opf & (REQ_PREFLUSH | REQ_FUA) ||
bio_op(bio) == REQ_OP_DISCARD) {
thin_defer_bio_with_throttle(tc, bio);
return DM_MAPIO_SUBMITTED;
{
switch (bio_op(bio)) {
case REQ_OP_READ:
- if (bio->bi_rw & REQ_RAHEAD) {
+ if (bio->bi_opf & REQ_RAHEAD) {
/* readahead of null bytes only wastes buffer cache */
return -EIO;
}
if (io_error == DM_ENDIO_REQUEUE)
return;
- if ((bio->bi_rw & REQ_PREFLUSH) && bio->bi_iter.bi_size) {
+ if ((bio->bi_opf & REQ_PREFLUSH) && bio->bi_iter.bi_size) {
/*
* Preflush done for flush with data, reissue
* without REQ_PREFLUSH.
*/
- bio->bi_rw &= ~REQ_PREFLUSH;
+ bio->bi_opf &= ~REQ_PREFLUSH;
queue_io(md, bio);
} else {
/* done with normal IO or empty flush */
{
struct dm_target_io *tio = container_of(bio, struct dm_target_io, clone);
unsigned bi_size = bio->bi_iter.bi_size >> SECTOR_SHIFT;
- BUG_ON(bio->bi_rw & REQ_PREFLUSH);
+ BUG_ON(bio->bi_opf & REQ_PREFLUSH);
BUG_ON(bi_size > *tio->len_ptr);
BUG_ON(n_sectors > bi_size);
*tio->len_ptr -= bi_size - n_sectors;
start_io_acct(ci.io);
- if (bio->bi_rw & REQ_PREFLUSH) {
+ if (bio->bi_opf & REQ_PREFLUSH) {
ci.bio = &ci.md->flush_bio;
ci.sector_count = 0;
error = __send_empty_flush(&ci);
if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags))) {
dm_put_live_table(md, srcu_idx);
- if (!(bio->bi_rw & REQ_RAHEAD))
+ if (!(bio->bi_opf & REQ_RAHEAD))
queue_io(md, bio);
else
bio_io_error(bio);
struct bio *split;
sector_t start_sector, end_sector, data_offset;
- if (unlikely(bio->bi_rw & REQ_PREFLUSH)) {
+ if (unlikely(bio->bi_opf & REQ_PREFLUSH)) {
md_flush_request(mddev, bio);
return;
}
*/
sectors = bio_sectors(bio);
/* bio could be mergeable after passing to underlayer */
- bio->bi_rw &= ~REQ_NOMERGE;
+ bio->bi_opf &= ~REQ_NOMERGE;
mddev->pers->make_request(mddev, bio);
cpu = part_stat_lock();
/* an empty barrier - all done */
bio_endio(bio);
else {
- bio->bi_rw &= ~REQ_PREFLUSH;
+ bio->bi_opf &= ~REQ_PREFLUSH;
mddev->pers->make_request(mddev, bio);
}
if (!bio->bi_error)
multipath_end_bh_io(mp_bh, 0);
- else if (!(bio->bi_rw & REQ_RAHEAD)) {
+ else if (!(bio->bi_opf & REQ_RAHEAD)) {
/*
* oops, IO error:
*/
struct multipath_bh * mp_bh;
struct multipath_info *multipath;
- if (unlikely(bio->bi_rw & REQ_PREFLUSH)) {
+ if (unlikely(bio->bi_opf & REQ_PREFLUSH)) {
md_flush_request(mddev, bio);
return;
}
mp_bh->bio.bi_iter.bi_sector += multipath->rdev->data_offset;
mp_bh->bio.bi_bdev = multipath->rdev->bdev;
- mp_bh->bio.bi_rw |= REQ_FAILFAST_TRANSPORT;
+ mp_bh->bio.bi_opf |= REQ_FAILFAST_TRANSPORT;
mp_bh->bio.bi_end_io = multipath_end_request;
mp_bh->bio.bi_private = mp_bh;
generic_make_request(&mp_bh->bio);
bio->bi_iter.bi_sector +=
conf->multipaths[mp_bh->path].rdev->data_offset;
bio->bi_bdev = conf->multipaths[mp_bh->path].rdev->bdev;
- bio->bi_rw |= REQ_FAILFAST_TRANSPORT;
+ bio->bi_opf |= REQ_FAILFAST_TRANSPORT;
bio->bi_end_io = multipath_end_request;
bio->bi_private = mp_bh;
generic_make_request(bio);
struct md_rdev *tmp_dev;
struct bio *split;
- if (unlikely(bio->bi_rw & REQ_PREFLUSH)) {
+ if (unlikely(bio->bi_opf & REQ_PREFLUSH)) {
md_flush_request(mddev, bio);
return;
}
unsigned long flags;
const int op = bio_op(bio);
const int rw = bio_data_dir(bio);
- const unsigned long do_sync = (bio->bi_rw & REQ_SYNC);
- const unsigned long do_flush_fua = (bio->bi_rw &
+ const unsigned long do_sync = (bio->bi_opf & REQ_SYNC);
+ const unsigned long do_flush_fua = (bio->bi_opf &
(REQ_PREFLUSH | REQ_FUA));
struct md_rdev *blocked_rdev;
struct blk_plug_cb *cb;
raid_end_bio_io(r1_bio);
} else {
const unsigned long do_sync
- = r1_bio->master_bio->bi_rw & REQ_SYNC;
+ = r1_bio->master_bio->bi_opf & REQ_SYNC;
if (bio) {
r1_bio->bios[r1_bio->read_disk] =
mddev->ro ? IO_BLOCKED : NULL;
int i;
const int op = bio_op(bio);
const int rw = bio_data_dir(bio);
- const unsigned long do_sync = (bio->bi_rw & REQ_SYNC);
- const unsigned long do_fua = (bio->bi_rw & REQ_FUA);
+ const unsigned long do_sync = (bio->bi_opf & REQ_SYNC);
+ const unsigned long do_fua = (bio->bi_opf & REQ_FUA);
unsigned long flags;
struct md_rdev *blocked_rdev;
struct blk_plug_cb *cb;
struct bio *split;
- if (unlikely(bio->bi_rw & REQ_PREFLUSH)) {
+ if (unlikely(bio->bi_opf & REQ_PREFLUSH)) {
md_flush_request(mddev, bio);
return;
}
return;
}
- do_sync = (r10_bio->master_bio->bi_rw & REQ_SYNC);
+ do_sync = (r10_bio->master_bio->bi_opf & REQ_SYNC);
slot = r10_bio->read_slot;
printk_ratelimited(
KERN_ERR
bio_endio(bio);
return 0;
}
- bio->bi_rw &= ~REQ_PREFLUSH;
+ bio->bi_opf &= ~REQ_PREFLUSH;
return -EAGAIN;
}
dd_idx = 0;
while (dd_idx == sh->pd_idx || dd_idx == sh->qd_idx)
dd_idx++;
- if (head->dev[dd_idx].towrite->bi_rw != sh->dev[dd_idx].towrite->bi_rw ||
+ if (head->dev[dd_idx].towrite->bi_opf != sh->dev[dd_idx].towrite->bi_opf ||
bio_op(head->dev[dd_idx].towrite) != bio_op(sh->dev[dd_idx].towrite))
goto unlock_out;
pr_debug("%s: for %llu schedule op %d on disc %d\n",
__func__, (unsigned long long)sh->sector,
- bi->bi_rw, i);
+ bi->bi_opf, i);
atomic_inc(&sh->count);
if (sh != head_sh)
atomic_inc(&head_sh->count);
bi->bi_iter.bi_sector = (sh->sector
+ rdev->data_offset);
if (test_bit(R5_ReadNoMerge, &head_sh->dev[i].flags))
- bi->bi_rw |= REQ_NOMERGE;
+ bi->bi_opf |= REQ_NOMERGE;
if (test_bit(R5_SkipCopy, &sh->dev[i].flags))
WARN_ON(test_bit(R5_UPTODATE, &sh->dev[i].flags));
pr_debug("%s: for %llu schedule op %d on "
"replacement disc %d\n",
__func__, (unsigned long long)sh->sector,
- rbi->bi_rw, i);
+ rbi->bi_opf, i);
atomic_inc(&sh->count);
if (sh != head_sh)
atomic_inc(&head_sh->count);
if (op_is_write(op))
set_bit(STRIPE_DEGRADED, &sh->state);
pr_debug("skip op %d on disc %d for sector %llu\n",
- bi->bi_rw, i, (unsigned long long)sh->sector);
+ bi->bi_opf, i, (unsigned long long)sh->sector);
clear_bit(R5_LOCKED, &sh->dev[i].flags);
set_bit(STRIPE_HANDLE, &sh->state);
}
while (wbi && wbi->bi_iter.bi_sector <
dev->sector + STRIPE_SECTORS) {
- if (wbi->bi_rw & REQ_FUA)
+ if (wbi->bi_opf & REQ_FUA)
set_bit(R5_WantFUA, &dev->flags);
- if (wbi->bi_rw & REQ_SYNC)
+ if (wbi->bi_opf & REQ_SYNC)
set_bit(R5_SyncIO, &dev->flags);
if (bio_op(wbi) == REQ_OP_DISCARD)
set_bit(R5_Discard, &dev->flags);
DEFINE_WAIT(w);
bool do_prepare;
- if (unlikely(bi->bi_rw & REQ_PREFLUSH)) {
+ if (unlikely(bi->bi_opf & REQ_PREFLUSH)) {
int ret = r5l_handle_flush_request(conf->log, bi);
if (ret == 0)
(unsigned long long)logical_sector);
sh = raid5_get_active_stripe(conf, new_sector, previous,
- (bi->bi_rw & REQ_RAHEAD), 0);
+ (bi->bi_opf & REQ_RAHEAD), 0);
if (sh) {
if (unlikely(previous)) {
/* expansion might have moved on while waiting for a
set_bit(STRIPE_HANDLE, &sh->state);
clear_bit(STRIPE_DELAYED, &sh->state);
if ((!sh->batch_head || sh == sh->batch_head) &&
- (bi->bi_rw & REQ_SYNC) &&
+ (bi->bi_opf & REQ_SYNC) &&
!test_and_set_bit(STRIPE_PREREAD_ACTIVE, &sh->state))
atomic_inc(&conf->preread_active_stripes);
release_stripe_plug(mddev, sh);
static int btt_do_bvec(struct btt *btt, struct bio_integrity_payload *bip,
struct page *page, unsigned int len, unsigned int off,
- int op, sector_t sector)
+ bool is_write, sector_t sector)
{
int ret;
- if (!op_is_write(op)) {
+ if (!is_write) {
ret = btt_read_pg(btt, bip, page, off, sector, len);
flush_dcache_page(page);
} else {
BUG_ON(len % btt->sector_size);
err = btt_do_bvec(btt, bip, bvec.bv_page, len, bvec.bv_offset,
- bio_op(bio), iter.bi_sector);
+ op_is_write(bio_op(bio)), iter.bi_sector);
if (err) {
dev_info(&btt->nd_btt->dev,
"io error in %s sector %lld, len %d,\n",
}
static int btt_rw_page(struct block_device *bdev, sector_t sector,
- struct page *page, int op)
+ struct page *page, bool is_write)
{
struct btt *btt = bdev->bd_disk->private_data;
- btt_do_bvec(btt, NULL, page, PAGE_SIZE, 0, op, sector);
- page_endio(page, op, 0);
+ btt_do_bvec(btt, NULL, page, PAGE_SIZE, 0, is_write, sector);
+ page_endio(page, is_write, 0);
return 0;
}
}
static int pmem_do_bvec(struct pmem_device *pmem, struct page *page,
- unsigned int len, unsigned int off, int op,
+ unsigned int len, unsigned int off, bool is_write,
sector_t sector)
{
int rc = 0;
if (unlikely(is_bad_pmem(&pmem->bb, sector, len)))
bad_pmem = true;
- if (!op_is_write(op)) {
+ if (!is_write) {
if (unlikely(bad_pmem))
rc = -EIO;
else {
struct pmem_device *pmem = q->queuedata;
struct nd_region *nd_region = to_region(pmem);
- if (bio->bi_rw & REQ_FLUSH)
+ if (bio->bi_opf & REQ_FLUSH)
nvdimm_flush(nd_region);
do_acct = nd_iostat_start(bio, &start);
bio_for_each_segment(bvec, bio, iter) {
rc = pmem_do_bvec(pmem, bvec.bv_page, bvec.bv_len,
- bvec.bv_offset, bio_op(bio),
+ bvec.bv_offset, op_is_write(bio_op(bio)),
iter.bi_sector);
if (rc) {
bio->bi_error = rc;
if (do_acct)
nd_iostat_end(bio, start);
- if (bio->bi_rw & REQ_FUA)
+ if (bio->bi_opf & REQ_FUA)
nvdimm_flush(nd_region);
bio_endio(bio);
}
static int pmem_rw_page(struct block_device *bdev, sector_t sector,
- struct page *page, int op)
+ struct page *page, bool is_write)
{
struct pmem_device *pmem = bdev->bd_queue->queuedata;
int rc;
- rc = pmem_do_bvec(pmem, page, PAGE_SIZE, 0, op, sector);
+ rc = pmem_do_bvec(pmem, page, PAGE_SIZE, 0, is_write, sector);
/*
* The ->rw_page interface is subtle and tricky. The core
* caused by double completion.
*/
if (rc == 0)
- page_endio(page, op, 0);
+ page_endio(page, is_write, 0);
return rc;
}
bio = bio_alloc(GFP_KERNEL, 0);
bio->bi_end_io = iblock_end_io_flush;
bio->bi_bdev = ib_dev->ibd_bd;
- bio->bi_rw = WRITE_FLUSH;
+ bio_set_op_attrs(bio, REQ_OP_WRITE, WRITE_FLUSH);
if (!immed)
bio->bi_private = cmd;
submit_bio(bio);
result = blk_queue_enter(bdev->bd_queue, false);
if (result)
return result;
- result = ops->rw_page(bdev, sector + get_start_sect(bdev), page,
- REQ_OP_READ);
+ result = ops->rw_page(bdev, sector + get_start_sect(bdev), page, false);
blk_queue_exit(bdev->bd_queue);
return result;
}
return result;
set_page_writeback(page);
- result = ops->rw_page(bdev, sector + get_start_sect(bdev), page,
- REQ_OP_WRITE);
+ result = ops->rw_page(bdev, sector + get_start_sect(bdev), page, true);
if (result)
end_page_writeback(page);
else
printk(KERN_INFO
"submit_bio(rw=%d,0x%x, bi_vcnt=%u,"
" bi_sector=%llu (bytenr %llu), bi_bdev=%p)\n",
- bio_op(bio), bio->bi_rw, bio->bi_vcnt,
+ bio_op(bio), bio->bi_opf, bio->bi_vcnt,
(unsigned long long)bio->bi_iter.bi_sector,
dev_bytenr, bio->bi_bdev);
btrfsic_process_written_block(dev_state, dev_bytenr,
mapped_datav, bio->bi_vcnt,
bio, &bio_is_patched,
- NULL, bio->bi_rw);
+ NULL, bio->bi_opf);
while (i > 0) {
i--;
kunmap(bio->bi_io_vec[i].bv_page);
}
kfree(mapped_datav);
- } else if (NULL != dev_state && (bio->bi_rw & REQ_PREFLUSH)) {
+ } else if (NULL != dev_state && (bio->bi_opf & REQ_PREFLUSH)) {
if (dev_state->state->print_mask &
BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
printk(KERN_INFO
"submit_bio(rw=%d,0x%x FLUSH, bdev=%p)\n",
- bio_op(bio), bio->bi_rw, bio->bi_bdev);
+ bio_op(bio), bio->bi_opf, bio->bi_bdev);
if (!dev_state->dummy_block_for_bio_bh_flush.is_iodone) {
if ((dev_state->state->print_mask &
(BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH |
block->never_written = 0;
block->iodone_w_error = 0;
block->flush_gen = dev_state->last_flush_gen + 1;
- block->submit_bio_bh_rw = bio->bi_rw;
+ block->submit_bio_bh_rw = bio->bi_opf;
block->orig_bio_bh_private = bio->bi_private;
block->orig_bio_bh_end_io.bio = bio->bi_end_io;
block->next_in_same_bio = NULL;
atomic_inc(&fs_info->nr_async_submits);
- if (bio->bi_rw & REQ_SYNC)
+ if (bio->bi_opf & REQ_SYNC)
btrfs_set_work_high_priority(&async->work);
btrfs_queue_work(fs_info->workers, &async->work);
if (err)
btrfs_warn(BTRFS_I(dip->inode)->root->fs_info,
"direct IO failed ino %llu rw %d,%u sector %#Lx len %u err no %d",
- btrfs_ino(dip->inode), bio_op(bio), bio->bi_rw,
+ btrfs_ino(dip->inode), bio_op(bio), bio->bi_opf,
(unsigned long long)bio->bi_iter.bi_sector,
bio->bi_iter.bi_size, err);
if (!bio)
return -ENOMEM;
- bio_set_op_attrs(bio, bio_op(orig_bio), orig_bio->bi_rw);
+ bio_set_op_attrs(bio, bio_op(orig_bio), orig_bio->bi_opf);
bio->bi_private = dip;
bio->bi_end_io = btrfs_end_dio_bio;
btrfs_io_bio(bio)->logical = file_offset;
start_sector, GFP_NOFS);
if (!bio)
goto out_err;
- bio_set_op_attrs(bio, bio_op(orig_bio), orig_bio->bi_rw);
+ bio_set_op_attrs(bio, bio_op(orig_bio), orig_bio->bi_opf);
bio->bi_private = dip;
bio->bi_end_io = btrfs_end_dio_bio;
btrfs_io_bio(bio)->logical = file_offset;
else
btrfs_dev_stat_inc(dev,
BTRFS_DEV_STAT_READ_ERRS);
- if ((bio->bi_rw & WRITE_FLUSH) == WRITE_FLUSH)
+ if ((bio->bi_opf & WRITE_FLUSH) == WRITE_FLUSH)
btrfs_dev_stat_inc(dev,
BTRFS_DEV_STAT_FLUSH_ERRS);
btrfs_dev_stat_print_on_error(dev);
bio->bi_next = NULL;
spin_lock(&device->io_lock);
- if (bio->bi_rw & REQ_SYNC)
+ if (bio->bi_opf & REQ_SYNC)
pending_bios = &device->pending_sync_bios;
else
pending_bios = &device->pending_bios;
rcu_read_lock();
name = rcu_dereference(dev->name);
pr_debug("btrfs_map_bio: rw %d 0x%x, sector=%llu, dev=%lu "
- "(%s id %llu), size=%u\n", bio_op(bio), bio->bi_rw,
+ "(%s id %llu), size=%u\n", bio_op(bio), bio->bi_opf,
(u64)bio->bi_iter.bi_sector, (u_long)dev->bdev->bd_dev,
name->str, dev->devid, bio->bi_iter.bi_size);
rcu_read_unlock();
bio_for_each_segment_all(bv, bio, i) {
struct page *page = bv->bv_page;
- page_endio(page, bio_op(bio), bio->bi_error);
+ page_endio(page, op_is_write(bio_op(bio)), bio->bi_error);
}
bio_put(bio);
static inline bool bio_mergeable(struct bio *bio)
{
- if (bio->bi_rw & REQ_NOMERGE_FLAGS)
+ if (bio->bi_opf & REQ_NOMERGE_FLAGS)
return false;
return true;
static inline struct bio_integrity_payload *bio_integrity(struct bio *bio)
{
- if (bio->bi_rw & REQ_INTEGRITY)
+ if (bio->bi_opf & REQ_INTEGRITY)
return bio->bi_integrity;
return NULL;
if (!throtl) {
blkg = blkg ?: q->root_blkg;
- blkg_rwstat_add(&blkg->stat_bytes, bio_op(bio), bio->bi_rw,
+ blkg_rwstat_add(&blkg->stat_bytes, bio_op(bio), bio->bi_opf,
bio->bi_iter.bi_size);
- blkg_rwstat_add(&blkg->stat_ios, bio_op(bio), bio->bi_rw, 1);
+ blkg_rwstat_add(&blkg->stat_ios, bio_op(bio), bio->bi_opf, 1);
}
rcu_read_unlock();
typedef void (bio_end_io_t) (struct bio *);
typedef void (bio_destructor_t) (struct bio *);
-enum req_op {
- REQ_OP_READ,
- REQ_OP_WRITE,
- REQ_OP_DISCARD, /* request to discard sectors */
- REQ_OP_SECURE_ERASE, /* request to securely erase sectors */
- REQ_OP_WRITE_SAME, /* write same block many times */
- REQ_OP_FLUSH, /* request for cache flush */
-};
-
-#define REQ_OP_BITS 3
-
#ifdef CONFIG_BLOCK
/*
* main unit of I/O for the block layer and lower layers (ie drivers and
struct bio *bi_next; /* request queue link */
struct block_device *bi_bdev;
int bi_error;
- unsigned int bi_rw; /* bottom bits req flags,
- * top bits REQ_OP
+ unsigned int bi_opf; /* bottom bits req flags,
+ * top bits REQ_OP. Use
+ * accessors.
*/
unsigned short bi_flags; /* status, command, etc */
unsigned short bi_ioprio;
};
#define BIO_OP_SHIFT (8 * sizeof(unsigned int) - REQ_OP_BITS)
-#define bio_op(bio) ((bio)->bi_rw >> BIO_OP_SHIFT)
+#define bio_op(bio) ((bio)->bi_opf >> BIO_OP_SHIFT)
#define bio_set_op_attrs(bio, op, op_flags) do { \
WARN_ON(op >= (1 << REQ_OP_BITS)); \
- (bio)->bi_rw &= ((1 << BIO_OP_SHIFT) - 1); \
- (bio)->bi_rw |= ((unsigned int) (op) << BIO_OP_SHIFT); \
- (bio)->bi_rw |= op_flags; \
+ (bio)->bi_opf &= ((1 << BIO_OP_SHIFT) - 1); \
+ (bio)->bi_opf |= ((unsigned int) (op) << BIO_OP_SHIFT); \
+ (bio)->bi_opf |= op_flags; \
} while (0)
#define BIO_RESET_BYTES offsetof(struct bio, bi_max_vecs)
/*
* Request flags. For use in the cmd_flags field of struct request, and in
- * bi_rw of struct bio. Note that some flags are only valid in either one.
+ * bi_opf of struct bio. Note that some flags are only valid in either one.
*/
enum rq_flag_bits {
/* common flags */
#define REQ_HASHED (1ULL << __REQ_HASHED)
#define REQ_MQ_INFLIGHT (1ULL << __REQ_MQ_INFLIGHT)
+enum req_op {
+ REQ_OP_READ,
+ REQ_OP_WRITE,
+ REQ_OP_DISCARD, /* request to discard sectors */
+ REQ_OP_SECURE_ERASE, /* request to securely erase sectors */
+ REQ_OP_WRITE_SAME, /* write same block many times */
+ REQ_OP_FLUSH, /* request for cache flush */
+};
+
+#define REQ_OP_BITS 3
+
typedef unsigned int blk_qc_t;
#define BLK_QC_T_NONE -1U
#define BLK_QC_T_SHIFT 16
struct block_device_operations {
int (*open) (struct block_device *, fmode_t);
void (*release) (struct gendisk *, fmode_t);
- int (*rw_page)(struct block_device *, sector_t, struct page *, int op);
+ int (*rw_page)(struct block_device *, sector_t, struct page *, bool);
int (*ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
int (*compat_ioctl) (struct block_device *, fmode_t, unsigned, unsigned long);
long (*direct_access)(struct block_device *, sector_t, void **, pfn_t *,
extern void make_bad_inode(struct inode *);
extern bool is_bad_inode(struct inode *);
+#ifdef CONFIG_BLOCK
static inline bool op_is_write(unsigned int op)
{
return op == REQ_OP_READ ? false : true;
}
-#ifdef CONFIG_BLOCK
-
/*
* return data direction, READ or WRITE
*/
extern void end_page_writeback(struct page *page);
void wait_for_stable_page(struct page *page);
-void page_endio(struct page *page, int op, int err);
+void page_endio(struct page *page, bool is_write, int err);
/*
* Add an arbitrary waiter to a page's wait queue
__entry->sector = bio->bi_iter.bi_sector;
__entry->orig_sector = bio->bi_iter.bi_sector - 16;
__entry->nr_sector = bio->bi_iter.bi_size >> 9;
- blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
+ blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_opf,
bio->bi_iter.bi_size);
),
__entry->dev = bio->bi_bdev->bd_dev;
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio->bi_iter.bi_size >> 9;
- blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
+ blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_opf,
bio->bi_iter.bi_size);
),
__entry->dev = bio->bi_bdev->bd_dev;
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio->bi_iter.bi_size >> 9;
- blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
+ blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_opf,
bio->bi_iter.bi_size);
__entry->cache_hit = hit;
__entry->bypass = bypass;
__entry->inode = inode;
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio->bi_iter.bi_size >> 9;
- blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
+ blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_opf,
bio->bi_iter.bi_size);
__entry->writeback = writeback;
__entry->bypass = bypass;
bio->bi_bdev->bd_dev : 0;
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio_sectors(bio);
- blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
+ blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_opf,
bio->bi_iter.bi_size);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio_sectors(bio);
__entry->error = error;
- blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
+ blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_opf,
bio->bi_iter.bi_size);
),
__entry->dev = bio->bi_bdev->bd_dev;
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio_sectors(bio);
- blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
+ blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_opf,
bio->bi_iter.bi_size);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
__entry->dev = bio->bi_bdev->bd_dev;
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio_sectors(bio);
- blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
+ blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_opf,
bio->bi_iter.bi_size);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
__entry->sector = bio ? bio->bi_iter.bi_sector : 0;
__entry->nr_sector = bio ? bio_sectors(bio) : 0;
blk_fill_rwbs(__entry->rwbs, bio ? bio_op(bio) : 0,
- bio ? bio->bi_rw : 0, __entry->nr_sector);
+ bio ? bio->bi_opf : 0, __entry->nr_sector);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
__entry->dev = bio->bi_bdev->bd_dev;
__entry->sector = bio->bi_iter.bi_sector;
__entry->new_sector = new_sector;
- blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
+ blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_opf,
bio->bi_iter.bi_size);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
__entry->nr_sector = bio_sectors(bio);
__entry->old_dev = dev;
__entry->old_sector = from;
- blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_rw,
+ blk_fill_rwbs(__entry->rwbs, bio_op(bio), bio->bi_opf,
bio->bi_iter.bi_size);
),
return;
__blk_add_trace(bt, bio->bi_iter.bi_sector, bio->bi_iter.bi_size,
- bio_op(bio), bio->bi_rw, what, error, 0, NULL);
+ bio_op(bio), bio->bi_opf, what, error, 0, NULL);
}
static void blk_add_trace_bio_bounce(void *ignore,
__be64 rpdu = cpu_to_be64(pdu);
__blk_add_trace(bt, bio->bi_iter.bi_sector,
- bio->bi_iter.bi_size, bio_op(bio), bio->bi_rw,
+ bio->bi_iter.bi_size, bio_op(bio), bio->bi_opf,
BLK_TA_SPLIT, bio->bi_error, sizeof(rpdu),
&rpdu);
}
r.sector_from = cpu_to_be64(from);
__blk_add_trace(bt, bio->bi_iter.bi_sector, bio->bi_iter.bi_size,
- bio_op(bio), bio->bi_rw, BLK_TA_REMAP, bio->bi_error,
+ bio_op(bio), bio->bi_opf, BLK_TA_REMAP, bio->bi_error,
sizeof(r), &r);
}
* After completing I/O on a page, call this routine to update the page
* flags appropriately
*/
-void page_endio(struct page *page, int op, int err)
+void page_endio(struct page *page, bool is_write, int err)
{
- if (!op_is_write(op)) {
+ if (!is_write) {
if (!err) {
SetPageUptodate(page);
} else {
ret = -ENOMEM;
goto out;
}
- bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
if (wbc->sync_mode == WB_SYNC_ALL)
- bio->bi_rw |= REQ_SYNC;
+ bio_set_op_attrs(bio, REQ_OP_WRITE, REQ_SYNC);
+ else
+ bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
count_vm_event(PSWPOUT);
set_page_writeback(page);
unlock_page(page);