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Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block

Browse Source 
Pull core block IO changes from Jens Axboe:
 "The major piece in here is the immutable bio_ve series from Kent, the
  rest is fairly minor.  It was supposed to go in last round, but
  various issues pushed it to this release instead.  The pull request
  contains:

   - Various smaller blk-mq fixes from different folks.  Nothing major
     here, just minor fixes and cleanups.

   - Fix for a memory leak in the error path in the block ioctl code
     from Christian Engelmayer.

   - Header export fix from CaiZhiyong.

   - Finally the immutable biovec changes from Kent Overstreet.  This
     enables some nice future work on making arbitrarily sized bios
     possible, and splitting more efficient.  Related fixes to immutable
     bio_vecs:

        - dm-cache immutable fixup from Mike Snitzer.
        - btrfs immutable fixup from Muthu Kumar.

  - bio-integrity fix from Nic Bellinger, which is also going to stable"

* 'for-3.14/core' of git://git.kernel.dk/linux-block: (44 commits)
  xtensa: fixup simdisk driver to work with immutable bio_vecs
  block/blk-mq-cpu.c: use hotcpu_notifier()
  blk-mq: for_each_* macro correctness
  block: Fix memory leak in rw_copy_check_uvector() handling
  bio-integrity: Fix bio_integrity_verify segment start bug
  block: remove unrelated header files and export symbol
  blk-mq: uses page->list incorrectly
  blk-mq: use __smp_call_function_single directly
  btrfs: fix missing increment of bi_remaining
  Revert "block: Warn and free bio if bi_end_io is not set"
  block: Warn and free bio if bi_end_io is not set
  blk-mq: fix initializing request's start time
  block: blk-mq: don't export blk_mq_free_queue()
  block: blk-mq: make blk_sync_queue support mq
  block: blk-mq: support draining mq queue
  dm cache: increment bi_remaining when bi_end_io is restored
  block: fixup for generic bio chaining
  block: Really silence spurious compiler warnings
  block: Silence spurious compiler warnings
  block: Kill bio_pair_split()
  ...
This commit is contained in:
Linus Torvalds
2014-01-30 11:19:05 -08:00
parent d9894c228b 675675ada4
commit f568849eda
139 changed files with 2137 additions and 2676 deletions
Download Patch File Download Diff File Expand all files Collapse all files

84
drivers/md/raid5.c
View File

@@ -133,7 +133,7 @@ static inline void unlock_all_device_hash_locks_irq(struct r5conf *conf)
static inline struct bio *r5_next_bio(struct bio *bio, sector_t sector)
{
int sectors = bio_sectors(bio);
if (bio->bi_sector + sectors < sector + STRIPE_SECTORS)
if (bio->bi_iter.bi_sector + sectors < sector + STRIPE_SECTORS)
return bio->bi_next;
else
return NULL;
@@ -225,7 +225,7 @@ static void return_io(struct bio *return_bi)
return_bi = bi->bi_next;
bi->bi_next = NULL;
bi->bi_size = 0;
bi->bi_iter.bi_size = 0;
trace_block_bio_complete(bdev_get_queue(bi->bi_bdev),
bi, 0);
bio_endio(bi, 0);
@@ -852,10 +852,10 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s)
bi->bi_rw, i);
atomic_inc(&sh->count);
if (use_new_offset(conf, sh))
bi->bi_sector = (sh->sector
bi->bi_iter.bi_sector = (sh->sector
+ rdev->new_data_offset);
else
bi->bi_sector = (sh->sector
bi->bi_iter.bi_sector = (sh->sector
+ rdev->data_offset);
if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags))
bi->bi_rw |= REQ_NOMERGE;
@@ -863,7 +863,7 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s)
bi->bi_vcnt = 1;
bi->bi_io_vec[0].bv_len = STRIPE_SIZE;
bi->bi_io_vec[0].bv_offset = 0;
bi->bi_size = STRIPE_SIZE;
bi->bi_iter.bi_size = STRIPE_SIZE;
/*
* If this is discard request, set bi_vcnt 0. We don't
* want to confuse SCSI because SCSI will replace payload
@@ -899,15 +899,15 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s)
rbi->bi_rw, i);
atomic_inc(&sh->count);
if (use_new_offset(conf, sh))
rbi->bi_sector = (sh->sector
rbi->bi_iter.bi_sector = (sh->sector
+ rrdev->new_data_offset);
else
rbi->bi_sector = (sh->sector
rbi->bi_iter.bi_sector = (sh->sector
+ rrdev->data_offset);
rbi->bi_vcnt = 1;
rbi->bi_io_vec[0].bv_len = STRIPE_SIZE;
rbi->bi_io_vec[0].bv_offset = 0;
rbi->bi_size = STRIPE_SIZE;
rbi->bi_iter.bi_size = STRIPE_SIZE;
/*
* If this is discard request, set bi_vcnt 0. We don't
* want to confuse SCSI because SCSI will replace payload
@@ -935,24 +935,24 @@ static struct dma_async_tx_descriptor *
async_copy_data(int frombio, struct bio *bio, struct page *page,
sector_t sector, struct dma_async_tx_descriptor *tx)
{
struct bio_vec *bvl;
struct bio_vec bvl;
struct bvec_iter iter;
struct page *bio_page;
int i;
int page_offset;
struct async_submit_ctl submit;
enum async_tx_flags flags = 0;
if (bio->bi_sector >= sector)
page_offset = (signed)(bio->bi_sector - sector) * 512;
if (bio->bi_iter.bi_sector >= sector)
page_offset = (signed)(bio->bi_iter.bi_sector - sector) * 512;
else
page_offset = (signed)(sector - bio->bi_sector) * -512;
page_offset = (signed)(sector - bio->bi_iter.bi_sector) * -512;
if (frombio)
flags |= ASYNC_TX_FENCE;
init_async_submit(&submit, flags, tx, NULL, NULL, NULL);
bio_for_each_segment(bvl, bio, i) {
int len = bvl->bv_len;
bio_for_each_segment(bvl, bio, iter) {
int len = bvl.bv_len;
int clen;
int b_offset = 0;
@@ -968,8 +968,8 @@ async_copy_data(int frombio, struct bio *bio, struct page *page,
clen = len;
if (clen > 0) {
b_offset += bvl->bv_offset;
bio_page = bvl->bv_page;
b_offset += bvl.bv_offset;
bio_page = bvl.bv_page;
if (frombio)
tx = async_memcpy(page, bio_page, page_offset,
b_offset, clen, &submit);
@@ -1012,7 +1012,7 @@ static void ops_complete_biofill(void *stripe_head_ref)
BUG_ON(!dev->read);
rbi = dev->read;
dev->read = NULL;
while (rbi && rbi->bi_sector <
while (rbi && rbi->bi_iter.bi_sector <
dev->sector + STRIPE_SECTORS) {
rbi2 = r5_next_bio(rbi, dev->sector);
if (!raid5_dec_bi_active_stripes(rbi)) {
@@ -1048,7 +1048,7 @@ static void ops_run_biofill(struct stripe_head *sh)
dev->read = rbi = dev->toread;
dev->toread = NULL;
spin_unlock_irq(&sh->stripe_lock);
while (rbi && rbi->bi_sector <
while (rbi && rbi->bi_iter.bi_sector <
dev->sector + STRIPE_SECTORS) {
tx = async_copy_data(0, rbi, dev->page,
dev->sector, tx);
@@ -1390,7 +1390,7 @@ ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx)
wbi = dev->written = chosen;
spin_unlock_irq(&sh->stripe_lock);
while (wbi && wbi->bi_sector <
while (wbi && wbi->bi_iter.bi_sector <
dev->sector + STRIPE_SECTORS) {
if (wbi->bi_rw & REQ_FUA)
set_bit(R5_WantFUA, &dev->flags);
@@ -2615,7 +2615,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
int firstwrite=0;
pr_debug("adding bi b#%llu to stripe s#%llu\n",
(unsigned long long)bi->bi_sector,
(unsigned long long)bi->bi_iter.bi_sector,
(unsigned long long)sh->sector);
/*
@@ -2633,12 +2633,12 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
firstwrite = 1;
} else
bip = &sh->dev[dd_idx].toread;
while (*bip && (*bip)->bi_sector < bi->bi_sector) {
if (bio_end_sector(*bip) > bi->bi_sector)
while (*bip && (*bip)->bi_iter.bi_sector < bi->bi_iter.bi_sector) {
if (bio_end_sector(*bip) > bi->bi_iter.bi_sector)
goto overlap;
bip = & (*bip)->bi_next;
}
if (*bip && (*bip)->bi_sector < bio_end_sector(bi))
if (*bip && (*bip)->bi_iter.bi_sector < bio_end_sector(bi))
goto overlap;
BUG_ON(*bip && bi->bi_next && (*bip) != bi->bi_next);
@@ -2652,7 +2652,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
sector_t sector = sh->dev[dd_idx].sector;
for (bi=sh->dev[dd_idx].towrite;
sector < sh->dev[dd_idx].sector + STRIPE_SECTORS &&
bi && bi->bi_sector <= sector;
bi && bi->bi_iter.bi_sector <= sector;
bi = r5_next_bio(bi, sh->dev[dd_idx].sector)) {
if (bio_end_sector(bi) >= sector)
sector = bio_end_sector(bi);
@@ -2662,7 +2662,7 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
}
pr_debug("added bi b#%llu to stripe s#%llu, disk %d.\n",
(unsigned long long)(*bip)->bi_sector,
(unsigned long long)(*bip)->bi_iter.bi_sector,
(unsigned long long)sh->sector, dd_idx);
spin_unlock_irq(&sh->stripe_lock);
@@ -2737,7 +2737,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
wake_up(&conf->wait_for_overlap);
while (bi && bi->bi_sector <
while (bi && bi->bi_iter.bi_sector <
sh->dev[i].sector + STRIPE_SECTORS) {
struct bio *nextbi = r5_next_bio(bi, sh->dev[i].sector);
clear_bit(BIO_UPTODATE, &bi->bi_flags);
@@ -2756,7 +2756,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
bi = sh->dev[i].written;
sh->dev[i].written = NULL;
if (bi) bitmap_end = 1;
while (bi && bi->bi_sector <
while (bi && bi->bi_iter.bi_sector <
sh->dev[i].sector + STRIPE_SECTORS) {
struct bio *bi2 = r5_next_bio(bi, sh->dev[i].sector);
clear_bit(BIO_UPTODATE, &bi->bi_flags);
@@ -2780,7 +2780,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
spin_unlock_irq(&sh->stripe_lock);
if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
wake_up(&conf->wait_for_overlap);
while (bi && bi->bi_sector <
while (bi && bi->bi_iter.bi_sector <
sh->dev[i].sector + STRIPE_SECTORS) {
struct bio *nextbi =
r5_next_bio(bi, sh->dev[i].sector);
@@ -3004,7 +3004,7 @@ static void handle_stripe_clean_event(struct r5conf *conf,
clear_bit(R5_UPTODATE, &dev->flags);
wbi = dev->written;
dev->written = NULL;
while (wbi && wbi->bi_sector <
while (wbi && wbi->bi_iter.bi_sector <
dev->sector + STRIPE_SECTORS) {
wbi2 = r5_next_bio(wbi, dev->sector);
if (!raid5_dec_bi_active_stripes(wbi)) {
@@ -4096,7 +4096,7 @@ static int raid5_mergeable_bvec(struct request_queue *q,
static int in_chunk_boundary(struct mddev *mddev, struct bio *bio)
{
sector_t sector = bio->bi_sector + get_start_sect(bio->bi_bdev);
sector_t sector = bio->bi_iter.bi_sector + get_start_sect(bio->bi_bdev);
unsigned int chunk_sectors = mddev->chunk_sectors;
unsigned int bio_sectors = bio_sectors(bio);
@@ -4233,9 +4233,9 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
/*
* compute position
*/
align_bi->bi_sector = raid5_compute_sector(conf, raid_bio->bi_sector,
0,
&dd_idx, NULL);
align_bi->bi_iter.bi_sector =
raid5_compute_sector(conf, raid_bio->bi_iter.bi_sector,
0, &dd_idx, NULL);
end_sector = bio_end_sector(align_bi);
rcu_read_lock();
@@ -4260,7 +4260,8 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
align_bi->bi_flags &= ~(1 << BIO_SEG_VALID);
if (!bio_fits_rdev(align_bi) ||
is_badblock(rdev, align_bi->bi_sector, bio_sectors(align_bi),
is_badblock(rdev, align_bi->bi_iter.bi_sector,
bio_sectors(align_bi),
&first_bad, &bad_sectors)) {
/* too big in some way, or has a known bad block */
bio_put(align_bi);
@@ -4269,7 +4270,7 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
}
/* No reshape active, so we can trust rdev->data_offset */
align_bi->bi_sector += rdev->data_offset;
align_bi->bi_iter.bi_sector += rdev->data_offset;
spin_lock_irq(&conf->device_lock);
wait_event_lock_irq(conf->wait_for_stripe,
@@ -4281,7 +4282,7 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
if (mddev->gendisk)
trace_block_bio_remap(bdev_get_queue(align_bi->bi_bdev),
align_bi, disk_devt(mddev->gendisk),
raid_bio->bi_sector);
raid_bio->bi_iter.bi_sector);
generic_make_request(align_bi);
return 1;
} else {
@@ -4464,8 +4465,8 @@ static void make_discard_request(struct mddev *mddev, struct bio *bi)
/* Skip discard while reshape is happening */
return;
logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1);
last_sector = bi->bi_sector + (bi->bi_size>>9);
logical_sector = bi->bi_iter.bi_sector & ~((sector_t)STRIPE_SECTORS-1);
last_sector = bi->bi_iter.bi_sector + (bi->bi_iter.bi_size>>9);
bi->bi_next = NULL;
bi->bi_phys_segments = 1; /* over-loaded to count active stripes */
@@ -4569,7 +4570,7 @@ static void make_request(struct mddev *mddev, struct bio * bi)
return;
}
logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1);
logical_sector = bi->bi_iter.bi_sector & ~((sector_t)STRIPE_SECTORS-1);
last_sector = bio_end_sector(bi);
bi->bi_next = NULL;
bi->bi_phys_segments = 1; /* over-loaded to count active stripes */
@@ -5053,7 +5054,8 @@ static int retry_aligned_read(struct r5conf *conf, struct bio *raid_bio)
int remaining;
int handled = 0;
logical_sector = raid_bio->bi_sector & ~((sector_t)STRIPE_SECTORS-1);
logical_sector = raid_bio->bi_iter.bi_sector &
~((sector_t)STRIPE_SECTORS-1);
sector = raid5_compute_sector(conf, logical_sector,
0, &dd_idx, NULL);
last_sector = bio_end_sector(raid_bio);