Commit 9f2c9d12 authored by NeilBrown's avatar NeilBrown

md: remove typedefs: r10bio_t -> struct r10bio and r1bio_t -> struct r1bio

Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent 2b8bf345
......@@ -52,7 +52,7 @@ static void lower_barrier(conf_t *conf);
static void * r1bio_pool_alloc(gfp_t gfp_flags, void *data)
{
struct pool_info *pi = data;
int size = offsetof(r1bio_t, bios[pi->raid_disks]);
int size = offsetof(struct r1bio, bios[pi->raid_disks]);
/* allocate a r1bio with room for raid_disks entries in the bios array */
return kzalloc(size, gfp_flags);
......@@ -73,7 +73,7 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
{
struct pool_info *pi = data;
struct page *page;
r1bio_t *r1_bio;
struct r1bio *r1_bio;
struct bio *bio;
int i, j;
......@@ -139,7 +139,7 @@ static void r1buf_pool_free(void *__r1_bio, void *data)
{
struct pool_info *pi = data;
int i,j;
r1bio_t *r1bio = __r1_bio;
struct r1bio *r1bio = __r1_bio;
for (i = 0; i < RESYNC_PAGES; i++)
for (j = pi->raid_disks; j-- ;) {
......@@ -154,7 +154,7 @@ static void r1buf_pool_free(void *__r1_bio, void *data)
r1bio_pool_free(r1bio, data);
}
static void put_all_bios(conf_t *conf, r1bio_t *r1_bio)
static void put_all_bios(conf_t *conf, struct r1bio *r1_bio)
{
int i;
......@@ -166,7 +166,7 @@ static void put_all_bios(conf_t *conf, r1bio_t *r1_bio)
}
}
static void free_r1bio(r1bio_t *r1_bio)
static void free_r1bio(struct r1bio *r1_bio)
{
conf_t *conf = r1_bio->mddev->private;
......@@ -174,7 +174,7 @@ static void free_r1bio(r1bio_t *r1_bio)
mempool_free(r1_bio, conf->r1bio_pool);
}
static void put_buf(r1bio_t *r1_bio)
static void put_buf(struct r1bio *r1_bio)
{
conf_t *conf = r1_bio->mddev->private;
int i;
......@@ -190,7 +190,7 @@ static void put_buf(r1bio_t *r1_bio)
lower_barrier(conf);
}
static void reschedule_retry(r1bio_t *r1_bio)
static void reschedule_retry(struct r1bio *r1_bio)
{
unsigned long flags;
struct mddev *mddev = r1_bio->mddev;
......@@ -210,7 +210,7 @@ static void reschedule_retry(r1bio_t *r1_bio)
* operation and are ready to return a success/failure code to the buffer
* cache layer.
*/
static void call_bio_endio(r1bio_t *r1_bio)
static void call_bio_endio(struct r1bio *r1_bio)
{
struct bio *bio = r1_bio->master_bio;
int done;
......@@ -237,7 +237,7 @@ static void call_bio_endio(r1bio_t *r1_bio)
}
}
static void raid_end_bio_io(r1bio_t *r1_bio)
static void raid_end_bio_io(struct r1bio *r1_bio)
{
struct bio *bio = r1_bio->master_bio;
......@@ -257,7 +257,7 @@ static void raid_end_bio_io(r1bio_t *r1_bio)
/*
* Update disk head position estimator based on IRQ completion info.
*/
static inline void update_head_pos(int disk, r1bio_t *r1_bio)
static inline void update_head_pos(int disk, struct r1bio *r1_bio)
{
conf_t *conf = r1_bio->mddev->private;
......@@ -268,7 +268,7 @@ static inline void update_head_pos(int disk, r1bio_t *r1_bio)
/*
* Find the disk number which triggered given bio
*/
static int find_bio_disk(r1bio_t *r1_bio, struct bio *bio)
static int find_bio_disk(struct r1bio *r1_bio, struct bio *bio)
{
int mirror;
int raid_disks = r1_bio->mddev->raid_disks;
......@@ -286,7 +286,7 @@ static int find_bio_disk(r1bio_t *r1_bio, struct bio *bio)
static void raid1_end_read_request(struct bio *bio, int error)
{
int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
r1bio_t *r1_bio = bio->bi_private;
struct r1bio *r1_bio = bio->bi_private;
int mirror;
conf_t *conf = r1_bio->mddev->private;
......@@ -333,7 +333,7 @@ static void raid1_end_read_request(struct bio *bio, int error)
rdev_dec_pending(conf->mirrors[mirror].rdev, conf->mddev);
}
static void close_write(r1bio_t *r1_bio)
static void close_write(struct r1bio *r1_bio)
{
/* it really is the end of this request */
if (test_bit(R1BIO_BehindIO, &r1_bio->state)) {
......@@ -352,7 +352,7 @@ static void close_write(r1bio_t *r1_bio)
md_write_end(r1_bio->mddev);
}
static void r1_bio_write_done(r1bio_t *r1_bio)
static void r1_bio_write_done(struct r1bio *r1_bio)
{
if (!atomic_dec_and_test(&r1_bio->remaining))
return;
......@@ -371,7 +371,7 @@ static void r1_bio_write_done(r1bio_t *r1_bio)
static void raid1_end_write_request(struct bio *bio, int error)
{
int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
r1bio_t *r1_bio = bio->bi_private;
struct r1bio *r1_bio = bio->bi_private;
int mirror, behind = test_bit(R1BIO_BehindIO, &r1_bio->state);
conf_t *conf = r1_bio->mddev->private;
struct bio *to_put = NULL;
......@@ -466,7 +466,7 @@ static void raid1_end_write_request(struct bio *bio, int error)
*
* The rdev for the device selected will have nr_pending incremented.
*/
static int read_balance(conf_t *conf, r1bio_t *r1_bio, int *max_sectors)
static int read_balance(conf_t *conf, struct r1bio *r1_bio, int *max_sectors)
{
const sector_t this_sector = r1_bio->sector;
int sectors;
......@@ -764,7 +764,7 @@ static void unfreeze_array(conf_t *conf)
/* duplicate the data pages for behind I/O
*/
static void alloc_behind_pages(struct bio *bio, r1bio_t *r1_bio)
static void alloc_behind_pages(struct bio *bio, struct r1bio *r1_bio)
{
int i;
struct bio_vec *bvec;
......@@ -800,7 +800,7 @@ static int make_request(struct mddev *mddev, struct bio * bio)
{
conf_t *conf = mddev->private;
mirror_info_t *mirror;
r1bio_t *r1_bio;
struct r1bio *r1_bio;
struct bio *read_bio;
int i, disks;
struct bitmap *bitmap;
......@@ -1354,7 +1354,7 @@ abort:
static void end_sync_read(struct bio *bio, int error)
{
r1bio_t *r1_bio = bio->bi_private;
struct r1bio *r1_bio = bio->bi_private;
update_head_pos(r1_bio->read_disk, r1_bio);
......@@ -1373,7 +1373,7 @@ static void end_sync_read(struct bio *bio, int error)
static void end_sync_write(struct bio *bio, int error)
{
int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
r1bio_t *r1_bio = bio->bi_private;
struct r1bio *r1_bio = bio->bi_private;
struct mddev *mddev = r1_bio->mddev;
conf_t *conf = mddev->private;
int mirror=0;
......@@ -1433,7 +1433,7 @@ static int r1_sync_page_io(struct md_rdev *rdev, sector_t sector,
return 0;
}
static int fix_sync_read_error(r1bio_t *r1_bio)
static int fix_sync_read_error(struct r1bio *r1_bio)
{
/* Try some synchronous reads of other devices to get
* good data, much like with normal read errors. Only
......@@ -1553,7 +1553,7 @@ static int fix_sync_read_error(r1bio_t *r1_bio)
return 1;
}
static int process_checks(r1bio_t *r1_bio)
static int process_checks(struct r1bio *r1_bio)
{
/* We have read all readable devices. If we haven't
* got the block, then there is no hope left.
......@@ -1635,7 +1635,7 @@ static int process_checks(r1bio_t *r1_bio)
return 0;
}
static void sync_request_write(struct mddev *mddev, r1bio_t *r1_bio)
static void sync_request_write(struct mddev *mddev, struct r1bio *r1_bio)
{
conf_t *conf = mddev->private;
int i;
......@@ -1790,7 +1790,7 @@ static int submit_bio_wait(int rw, struct bio *bio)
return test_bit(BIO_UPTODATE, &bio->bi_flags);
}
static int narrow_write_error(r1bio_t *r1_bio, int i)
static int narrow_write_error(struct r1bio *r1_bio, int i)
{
struct mddev *mddev = r1_bio->mddev;
conf_t *conf = mddev->private;
......@@ -1866,7 +1866,7 @@ static int narrow_write_error(r1bio_t *r1_bio, int i)
return ok;
}
static void handle_sync_write_finished(conf_t *conf, r1bio_t *r1_bio)
static void handle_sync_write_finished(conf_t *conf, struct r1bio *r1_bio)
{
int m;
int s = r1_bio->sectors;
......@@ -1889,7 +1889,7 @@ static void handle_sync_write_finished(conf_t *conf, r1bio_t *r1_bio)
md_done_sync(conf->mddev, s, 1);
}
static void handle_write_finished(conf_t *conf, r1bio_t *r1_bio)
static void handle_write_finished(conf_t *conf, struct r1bio *r1_bio)
{
int m;
for (m = 0; m < conf->raid_disks ; m++)
......@@ -1918,7 +1918,7 @@ static void handle_write_finished(conf_t *conf, r1bio_t *r1_bio)
raid_end_bio_io(r1_bio);
}
static void handle_read_error(conf_t *conf, r1bio_t *r1_bio)
static void handle_read_error(conf_t *conf, struct r1bio *r1_bio)
{
int disk;
int max_sectors;
......@@ -2010,7 +2010,7 @@ read_more:
static void raid1d(struct mddev *mddev)
{
r1bio_t *r1_bio;
struct r1bio *r1_bio;
unsigned long flags;
conf_t *conf = mddev->private;
struct list_head *head = &conf->retry_list;
......@@ -2029,7 +2029,7 @@ static void raid1d(struct mddev *mddev)
spin_unlock_irqrestore(&conf->device_lock, flags);
break;
}
r1_bio = list_entry(head->prev, r1bio_t, retry_list);
r1_bio = list_entry(head->prev, struct r1bio, retry_list);
list_del(head->prev);
conf->nr_queued--;
spin_unlock_irqrestore(&conf->device_lock, flags);
......@@ -2088,7 +2088,7 @@ static int init_resync(conf_t *conf)
static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipped, int go_faster)
{
conf_t *conf = mddev->private;
r1bio_t *r1_bio;
struct r1bio *r1_bio;
struct bio *bio;
sector_t max_sector, nr_sectors;
int disk = -1;
......
......@@ -21,9 +21,6 @@ struct pool_info {
int raid_disks;
};
typedef struct r1bio_s r1bio_t;
struct r1_private_data_s {
struct mddev *mddev;
mirror_info_t *mirrors;
......@@ -43,9 +40,9 @@ struct r1_private_data_s {
spinlock_t device_lock;
/* list of 'r1bio_t' that need to be processed by raid1d, whether
* to retry a read, writeout a resync or recovery block, or
* anything else.
/* list of 'struct r1bio' that need to be processed by raid1d,
* whether to retry a read, writeout a resync or recovery
* block, or anything else.
*/
struct list_head retry_list;
......@@ -80,8 +77,8 @@ struct r1_private_data_s {
* mempools - it changes when the array grows or shrinks
*/
struct pool_info *poolinfo;
mempool_t *r1bio_pool;
mempool_t *r1buf_pool;
mempool_t *r1bio_pool;
mempool_t *r1buf_pool;
/* temporary buffer to synchronous IO when attempting to repair
* a read error.
......@@ -104,7 +101,7 @@ typedef struct r1_private_data_s conf_t;
* for this RAID1 operation, and about their status:
*/
struct r1bio_s {
struct r1bio {
atomic_t remaining; /* 'have we finished' count,
* used from IRQ handlers
*/
......
......@@ -64,7 +64,7 @@ static void lower_barrier(conf_t *conf);
static void * r10bio_pool_alloc(gfp_t gfp_flags, void *data)
{
conf_t *conf = data;
int size = offsetof(struct r10bio_s, devs[conf->copies]);
int size = offsetof(struct r10bio, devs[conf->copies]);
/* allocate a r10bio with room for raid_disks entries in the bios array */
return kzalloc(size, gfp_flags);
......@@ -94,7 +94,7 @@ static void * r10buf_pool_alloc(gfp_t gfp_flags, void *data)
{
conf_t *conf = data;
struct page *page;
r10bio_t *r10_bio;
struct r10bio *r10_bio;
struct bio *bio;
int i, j;
int nalloc;
......@@ -159,7 +159,7 @@ static void r10buf_pool_free(void *__r10_bio, void *data)
{
int i;
conf_t *conf = data;
r10bio_t *r10bio = __r10_bio;
struct r10bio *r10bio = __r10_bio;
int j;
for (j=0; j < conf->copies; j++) {
......@@ -175,7 +175,7 @@ static void r10buf_pool_free(void *__r10_bio, void *data)
r10bio_pool_free(r10bio, conf);
}
static void put_all_bios(conf_t *conf, r10bio_t *r10_bio)
static void put_all_bios(conf_t *conf, struct r10bio *r10_bio)
{
int i;
......@@ -187,7 +187,7 @@ static void put_all_bios(conf_t *conf, r10bio_t *r10_bio)
}
}
static void free_r10bio(r10bio_t *r10_bio)
static void free_r10bio(struct r10bio *r10_bio)
{
conf_t *conf = r10_bio->mddev->private;
......@@ -195,7 +195,7 @@ static void free_r10bio(r10bio_t *r10_bio)
mempool_free(r10_bio, conf->r10bio_pool);
}
static void put_buf(r10bio_t *r10_bio)
static void put_buf(struct r10bio *r10_bio)
{
conf_t *conf = r10_bio->mddev->private;
......@@ -204,7 +204,7 @@ static void put_buf(r10bio_t *r10_bio)
lower_barrier(conf);
}
static void reschedule_retry(r10bio_t *r10_bio)
static void reschedule_retry(struct r10bio *r10_bio)
{
unsigned long flags;
struct mddev *mddev = r10_bio->mddev;
......@@ -226,7 +226,7 @@ static void reschedule_retry(r10bio_t *r10_bio)
* operation and are ready to return a success/failure code to the buffer
* cache layer.
*/
static void raid_end_bio_io(r10bio_t *r10_bio)
static void raid_end_bio_io(struct r10bio *r10_bio)
{
struct bio *bio = r10_bio->master_bio;
int done;
......@@ -256,7 +256,7 @@ static void raid_end_bio_io(r10bio_t *r10_bio)
/*
* Update disk head position estimator based on IRQ completion info.
*/
static inline void update_head_pos(int slot, r10bio_t *r10_bio)
static inline void update_head_pos(int slot, struct r10bio *r10_bio)
{
conf_t *conf = r10_bio->mddev->private;
......@@ -267,7 +267,7 @@ static inline void update_head_pos(int slot, r10bio_t *r10_bio)
/*
* Find the disk number which triggered given bio
*/
static int find_bio_disk(conf_t *conf, r10bio_t *r10_bio,
static int find_bio_disk(conf_t *conf, struct r10bio *r10_bio,
struct bio *bio, int *slotp)
{
int slot;
......@@ -287,7 +287,7 @@ static int find_bio_disk(conf_t *conf, r10bio_t *r10_bio,
static void raid10_end_read_request(struct bio *bio, int error)
{
int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
r10bio_t *r10_bio = bio->bi_private;
struct r10bio *r10_bio = bio->bi_private;
int slot, dev;
conf_t *conf = r10_bio->mddev->private;
......@@ -327,7 +327,7 @@ static void raid10_end_read_request(struct bio *bio, int error)
}
}
static void close_write(r10bio_t *r10_bio)
static void close_write(struct r10bio *r10_bio)
{
/* clear the bitmap if all writes complete successfully */
bitmap_endwrite(r10_bio->mddev->bitmap, r10_bio->sector,
......@@ -337,7 +337,7 @@ static void close_write(r10bio_t *r10_bio)
md_write_end(r10_bio->mddev);
}
static void one_write_done(r10bio_t *r10_bio)
static void one_write_done(struct r10bio *r10_bio)
{
if (atomic_dec_and_test(&r10_bio->remaining)) {
if (test_bit(R10BIO_WriteError, &r10_bio->state))
......@@ -355,7 +355,7 @@ static void one_write_done(r10bio_t *r10_bio)
static void raid10_end_write_request(struct bio *bio, int error)
{
int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
r10bio_t *r10_bio = bio->bi_private;
struct r10bio *r10_bio = bio->bi_private;
int dev;
int dec_rdev = 1;
conf_t *conf = r10_bio->mddev->private;
......@@ -433,7 +433,7 @@ static void raid10_end_write_request(struct bio *bio, int error)
* sector offset to a virtual address
*/
static void raid10_find_phys(conf_t *conf, r10bio_t *r10bio)
static void raid10_find_phys(conf_t *conf, struct r10bio *r10bio)
{
int n,f;
sector_t sector;
......@@ -555,7 +555,7 @@ static int raid10_mergeable_bvec(struct request_queue *q,
* FIXME: possibly should rethink readbalancing and do it differently
* depending on near_copies / far_copies geometry.
*/
static int read_balance(conf_t *conf, r10bio_t *r10_bio, int *max_sectors)
static int read_balance(conf_t *conf, struct r10bio *r10_bio, int *max_sectors)
{
const sector_t this_sector = r10_bio->sector;
int disk, slot;
......@@ -834,7 +834,7 @@ static int make_request(struct mddev *mddev, struct bio * bio)
{
conf_t *conf = mddev->private;
mirror_info_t *mirror;
r10bio_t *r10_bio;
struct r10bio *r10_bio;
struct bio *read_bio;
int i;
int chunk_sects = conf->chunk_mask + 1;
......@@ -1411,7 +1411,7 @@ abort:
static void end_sync_read(struct bio *bio, int error)
{
r10bio_t *r10_bio = bio->bi_private;
struct r10bio *r10_bio = bio->bi_private;
conf_t *conf = r10_bio->mddev->private;
int d;
......@@ -1439,7 +1439,7 @@ static void end_sync_read(struct bio *bio, int error)
}
}
static void end_sync_request(r10bio_t *r10_bio)
static void end_sync_request(struct r10bio *r10_bio)
{
struct mddev *mddev = r10_bio->mddev;
......@@ -1455,7 +1455,7 @@ static void end_sync_request(r10bio_t *r10_bio)
md_done_sync(mddev, s, 1);
break;
} else {
r10bio_t *r10_bio2 = (r10bio_t *)r10_bio->master_bio;
struct r10bio *r10_bio2 = (struct r10bio *)r10_bio->master_bio;
if (test_bit(R10BIO_MadeGood, &r10_bio->state) ||
test_bit(R10BIO_WriteError, &r10_bio->state))
reschedule_retry(r10_bio);
......@@ -1469,7 +1469,7 @@ static void end_sync_request(r10bio_t *r10_bio)
static void end_sync_write(struct bio *bio, int error)
{
int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
r10bio_t *r10_bio = bio->bi_private;
struct r10bio *r10_bio = bio->bi_private;
struct mddev *mddev = r10_bio->mddev;
conf_t *conf = mddev->private;
int d;
......@@ -1509,7 +1509,7 @@ static void end_sync_write(struct bio *bio, int error)
* We check if all blocks are in-sync and only write to blocks that
* aren't in sync
*/
static void sync_request_write(struct mddev *mddev, r10bio_t *r10_bio)
static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
{
conf_t *conf = mddev->private;
int i, first;
......@@ -1609,7 +1609,7 @@ done:
* The second for writing.
*
*/
static void fix_recovery_read_error(r10bio_t *r10_bio)
static void fix_recovery_read_error(struct r10bio *r10_bio)
{
/* We got a read error during recovery.
* We repeat the read in smaller page-sized sections.
......@@ -1688,7 +1688,7 @@ static void fix_recovery_read_error(r10bio_t *r10_bio)
}
}
static void recovery_request_write(struct mddev *mddev, r10bio_t *r10_bio)
static void recovery_request_write(struct mddev *mddev, struct r10bio *r10_bio)
{
conf_t *conf = mddev->private;
int d;
......@@ -1778,7 +1778,7 @@ static int r10_sync_page_io(struct md_rdev *rdev, sector_t sector,
* 3. Performs writes following reads for array synchronising.
*/
static void fix_read_error(conf_t *conf, struct mddev *mddev, r10bio_t *r10_bio)
static void fix_read_error(conf_t *conf, struct mddev *mddev, struct r10bio *r10_bio)
{
int sect = 0; /* Offset from r10_bio->sector */
int sectors = r10_bio->sectors;
......@@ -1983,7 +1983,7 @@ static int submit_bio_wait(int rw, struct bio *bio)
return test_bit(BIO_UPTODATE, &bio->bi_flags);
}
static int narrow_write_error(r10bio_t *r10_bio, int i)
static int narrow_write_error(struct r10bio *r10_bio, int i)
{
struct bio *bio = r10_bio->master_bio;
struct mddev *mddev = r10_bio->mddev;
......@@ -2040,7 +2040,7 @@ static int narrow_write_error(r10bio_t *r10_bio, int i)
return ok;
}
static void handle_read_error(struct mddev *mddev, r10bio_t *r10_bio)
static void handle_read_error(struct mddev *mddev, struct r10bio *r10_bio)
{
int slot = r10_bio->read_slot;
int mirror = r10_bio->devs[slot].devnum;
......@@ -2139,7 +2139,7 @@ read_more:
generic_make_request(bio);
}
static void handle_write_completed(conf_t *conf, r10bio_t *r10_bio)
static void handle_write_completed(conf_t *conf, struct r10bio *r10_bio)
{
/* Some sort of write request has finished and it
* succeeded in writing where we thought there was a
......@@ -2202,7 +2202,7 @@ static void handle_write_completed(conf_t *conf, r10bio_t *r10_bio)
static void raid10d(struct mddev *mddev)
{
r10bio_t *r10_bio;
struct r10bio *r10_bio;
unsigned long flags;
conf_t *conf = mddev->private;
struct list_head *head = &conf->retry_list;
......@@ -2220,7 +2220,7 @@ static void raid10d(struct mddev *mddev)
spin_unlock_irqrestore(&conf->device_lock, flags);
break;
}
r10_bio = list_entry(head->prev, r10bio_t, retry_list);
r10_bio = list_entry(head->prev, struct r10bio, retry_list);
list_del(head->prev);
conf->nr_queued--;
spin_unlock_irqrestore(&conf->device_lock, flags);
......@@ -2301,7 +2301,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
int *skipped, int go_faster)
{
conf_t *conf = mddev->private;
r10bio_t *r10_bio;
struct r10bio *r10_bio;
struct bio *biolist = NULL, *bio;
sector_t max_sector, nr_sectors;
int i;
......@@ -2393,7 +2393,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
for (i=0 ; i<conf->raid_disks; i++) {
int still_degraded;
r10bio_t *rb2;
struct r10bio *rb2;
sector_t sect;
int must_sync;
int any_working;
......@@ -2547,8 +2547,8 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
}
if (biolist == NULL) {
while (r10_bio) {
r10bio_t *rb2 = r10_bio;
r10_bio = (r10bio_t*) rb2->master_bio;
struct r10bio *rb2 = r10_bio;
r10_bio = (struct r10bio*) rb2->master_bio;
rb2->master_bio = NULL;
put_buf(rb2);
}
......
......@@ -13,8 +13,6 @@ struct mirror_info {
*/
};
typedef struct r10bio_s r10bio_t;
struct r10_private_data_s {
struct mddev *mddev;
mirror_info_t *mirrors;
......@@ -80,7 +78,7 @@ typedef struct r10_private_data_s conf_t;
* for this RAID10 operation, and about their status:
*/
struct r10bio_s {
struct r10bio {
atomic_t remaining; /* 'have we finished' count,
* used from IRQ handlers
*/
......
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