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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

73
drivers/md/raid1.c
View File

@@ -229,7 +229,7 @@ static void call_bio_endio(struct r1bio *r1_bio)
int done;
struct r1conf *conf = r1_bio->mddev->private;
sector_t start_next_window = r1_bio->start_next_window;
sector_t bi_sector = bio->bi_sector;
sector_t bi_sector = bio->bi_iter.bi_sector;
if (bio->bi_phys_segments) {
unsigned long flags;
@@ -265,9 +265,8 @@ static void raid_end_bio_io(struct r1bio *r1_bio)
if (!test_and_set_bit(R1BIO_Returned, &r1_bio->state)) {
pr_debug("raid1: sync end %s on sectors %llu-%llu\n",
(bio_data_dir(bio) == WRITE) ? "write" : "read",
(unsigned long long) bio->bi_sector,
(unsigned long long) bio->bi_sector +
bio_sectors(bio) - 1);
(unsigned long long) bio->bi_iter.bi_sector,
(unsigned long long) bio_end_sector(bio) - 1);
call_bio_endio(r1_bio);
}
@@ -466,9 +465,8 @@ static void raid1_end_write_request(struct bio *bio, int error)
struct bio *mbio = r1_bio->master_bio;
pr_debug("raid1: behind end write sectors"
" %llu-%llu\n",
(unsigned long long) mbio->bi_sector,
(unsigned long long) mbio->bi_sector +
bio_sectors(mbio) - 1);
(unsigned long long) mbio->bi_iter.bi_sector,
(unsigned long long) bio_end_sector(mbio) - 1);
call_bio_endio(r1_bio);
}
}
@@ -875,7 +873,7 @@ static bool need_to_wait_for_sync(struct r1conf *conf, struct bio *bio)
else if ((conf->next_resync - RESYNC_WINDOW_SECTORS
>= bio_end_sector(bio)) ||
(conf->next_resync + NEXT_NORMALIO_DISTANCE
<= bio->bi_sector))
<= bio->bi_iter.bi_sector))
wait = false;
else
wait = true;
@@ -913,14 +911,14 @@ static sector_t wait_barrier(struct r1conf *conf, struct bio *bio)
if (bio && bio_data_dir(bio) == WRITE) {
if (conf->next_resync + NEXT_NORMALIO_DISTANCE
<= bio->bi_sector) {
<= bio->bi_iter.bi_sector) {
if (conf->start_next_window == MaxSector)
conf->start_next_window =
conf->next_resync +
NEXT_NORMALIO_DISTANCE;
if ((conf->start_next_window + NEXT_NORMALIO_DISTANCE)
<= bio->bi_sector)
<= bio->bi_iter.bi_sector)
conf->next_window_requests++;
else
conf->current_window_requests++;
@@ -1027,7 +1025,8 @@ do_sync_io:
if (bvecs[i].bv_page)
put_page(bvecs[i].bv_page);
kfree(bvecs);
pr_debug("%dB behind alloc failed, doing sync I/O\n", bio->bi_size);
pr_debug("%dB behind alloc failed, doing sync I/O\n",
bio->bi_iter.bi_size);
}
struct raid1_plug_cb {
@@ -1107,7 +1106,7 @@ static void make_request(struct mddev *mddev, struct bio * bio)
if (bio_data_dir(bio) == WRITE &&
bio_end_sector(bio) > mddev->suspend_lo &&
bio->bi_sector < mddev->suspend_hi) {
bio->bi_iter.bi_sector < mddev->suspend_hi) {
/* As the suspend_* range is controlled by
* userspace, we want an interruptible
* wait.
@@ -1118,7 +1117,7 @@ static void make_request(struct mddev *mddev, struct bio * bio)
prepare_to_wait(&conf->wait_barrier,
&w, TASK_INTERRUPTIBLE);
if (bio_end_sector(bio) <= mddev->suspend_lo ||
bio->bi_sector >= mddev->suspend_hi)
bio->bi_iter.bi_sector >= mddev->suspend_hi)
break;
schedule();
}
@@ -1140,7 +1139,7 @@ static void make_request(struct mddev *mddev, struct bio * bio)
r1_bio->sectors = bio_sectors(bio);
r1_bio->state = 0;
r1_bio->mddev = mddev;
r1_bio->sector = bio->bi_sector;
r1_bio->sector = bio->bi_iter.bi_sector;
/* We might need to issue multiple reads to different
* devices if there are bad blocks around, so we keep
@@ -1180,12 +1179,13 @@ read_again:
r1_bio->read_disk = rdisk;
read_bio = bio_clone_mddev(bio, GFP_NOIO, mddev);
bio_trim(read_bio, r1_bio->sector - bio->bi_sector,
bio_trim(read_bio, r1_bio->sector - bio->bi_iter.bi_sector,
max_sectors);
r1_bio->bios[rdisk] = read_bio;
read_bio->bi_sector = r1_bio->sector + mirror->rdev->data_offset;
read_bio->bi_iter.bi_sector = r1_bio->sector +
mirror->rdev->data_offset;
read_bio->bi_bdev = mirror->rdev->bdev;
read_bio->bi_end_io = raid1_end_read_request;
read_bio->bi_rw = READ | do_sync;
@@ -1197,7 +1197,7 @@ read_again:
*/
sectors_handled = (r1_bio->sector + max_sectors
- bio->bi_sector);
- bio->bi_iter.bi_sector);
r1_bio->sectors = max_sectors;
spin_lock_irq(&conf->device_lock);
if (bio->bi_phys_segments == 0)
@@ -1218,7 +1218,8 @@ read_again:
r1_bio->sectors = bio_sectors(bio) - sectors_handled;
r1_bio->state = 0;
r1_bio->mddev = mddev;
r1_bio->sector = bio->bi_sector + sectors_handled;
r1_bio->sector = bio->bi_iter.bi_sector +
sectors_handled;
goto read_again;
} else
generic_make_request(read_bio);
@@ -1321,7 +1322,7 @@ read_again:
if (r1_bio->bios[j])
rdev_dec_pending(conf->mirrors[j].rdev, mddev);
r1_bio->state = 0;
allow_barrier(conf, start_next_window, bio->bi_sector);
allow_barrier(conf, start_next_window, bio->bi_iter.bi_sector);
md_wait_for_blocked_rdev(blocked_rdev, mddev);
start_next_window = wait_barrier(conf, bio);
/*
@@ -1348,7 +1349,7 @@ read_again:
bio->bi_phys_segments++;
spin_unlock_irq(&conf->device_lock);
}
sectors_handled = r1_bio->sector + max_sectors - bio->bi_sector;
sectors_handled = r1_bio->sector + max_sectors - bio->bi_iter.bi_sector;
atomic_set(&r1_bio->remaining, 1);
atomic_set(&r1_bio->behind_remaining, 0);
@@ -1360,7 +1361,7 @@ read_again:
continue;
mbio = bio_clone_mddev(bio, GFP_NOIO, mddev);
bio_trim(mbio, r1_bio->sector - bio->bi_sector, max_sectors);
bio_trim(mbio, r1_bio->sector - bio->bi_iter.bi_sector, max_sectors);
if (first_clone) {
/* do behind I/O ?
@@ -1394,7 +1395,7 @@ read_again:
r1_bio->bios[i] = mbio;
mbio->bi_sector = (r1_bio->sector +
mbio->bi_iter.bi_sector = (r1_bio->sector +
conf->mirrors[i].rdev->data_offset);
mbio->bi_bdev = conf->mirrors[i].rdev->bdev;
mbio->bi_end_io = raid1_end_write_request;
@@ -1434,7 +1435,7 @@ read_again:
r1_bio->sectors = bio_sectors(bio) - sectors_handled;
r1_bio->state = 0;
r1_bio->mddev = mddev;
r1_bio->sector = bio->bi_sector + sectors_handled;
r1_bio->sector = bio->bi_iter.bi_sector + sectors_handled;
goto retry_write;
}
@@ -1958,14 +1959,14 @@ static int process_checks(struct r1bio *r1_bio)
/* fixup the bio for reuse */
bio_reset(b);
b->bi_vcnt = vcnt;
b->bi_size = r1_bio->sectors << 9;
b->bi_sector = r1_bio->sector +
b->bi_iter.bi_size = r1_bio->sectors << 9;
b->bi_iter.bi_sector = r1_bio->sector +
conf->mirrors[i].rdev->data_offset;
b->bi_bdev = conf->mirrors[i].rdev->bdev;
b->bi_end_io = end_sync_read;
b->bi_private = r1_bio;
size = b->bi_size;
size = b->bi_iter.bi_size;
for (j = 0; j < vcnt ; j++) {
struct bio_vec *bi;
bi = &b->bi_io_vec[j];
@@ -2220,11 +2221,11 @@ static int narrow_write_error(struct r1bio *r1_bio, int i)
}
wbio->bi_rw = WRITE;
wbio->bi_sector = r1_bio->sector;
wbio->bi_size = r1_bio->sectors << 9;
wbio->bi_iter.bi_sector = r1_bio->sector;
wbio->bi_iter.bi_size = r1_bio->sectors << 9;
bio_trim(wbio, sector - r1_bio->sector, sectors);
wbio->bi_sector += rdev->data_offset;
wbio->bi_iter.bi_sector += rdev->data_offset;
wbio->bi_bdev = rdev->bdev;
if (submit_bio_wait(WRITE, wbio) == 0)
/* failure! */
@@ -2338,7 +2339,8 @@ read_more:
}
r1_bio->read_disk = disk;
bio = bio_clone_mddev(r1_bio->master_bio, GFP_NOIO, mddev);
bio_trim(bio, r1_bio->sector - bio->bi_sector, max_sectors);
bio_trim(bio, r1_bio->sector - bio->bi_iter.bi_sector,
max_sectors);
r1_bio->bios[r1_bio->read_disk] = bio;
rdev = conf->mirrors[disk].rdev;
printk_ratelimited(KERN_ERR
@@ -2347,7 +2349,7 @@ read_more:
mdname(mddev),
(unsigned long long)r1_bio->sector,
bdevname(rdev->bdev, b));
bio->bi_sector = r1_bio->sector + rdev->data_offset;
bio->bi_iter.bi_sector = r1_bio->sector + rdev->data_offset;
bio->bi_bdev = rdev->bdev;
bio->bi_end_io = raid1_end_read_request;
bio->bi_rw = READ | do_sync;
@@ -2356,7 +2358,7 @@ read_more:
/* Drat - have to split this up more */
struct bio *mbio = r1_bio->master_bio;
int sectors_handled = (r1_bio->sector + max_sectors
- mbio->bi_sector);
- mbio->bi_iter.bi_sector);
r1_bio->sectors = max_sectors;
spin_lock_irq(&conf->device_lock);
if (mbio->bi_phys_segments == 0)
@@ -2374,7 +2376,8 @@ read_more:
r1_bio->state = 0;
set_bit(R1BIO_ReadError, &r1_bio->state);
r1_bio->mddev = mddev;
r1_bio->sector = mbio->bi_sector + sectors_handled;
r1_bio->sector = mbio->bi_iter.bi_sector +
sectors_handled;
goto read_more;
} else
@@ -2598,7 +2601,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp
}
if (bio->bi_end_io) {
atomic_inc(&rdev->nr_pending);
bio->bi_sector = sector_nr + rdev->data_offset;
bio->bi_iter.bi_sector = sector_nr + rdev->data_offset;
bio->bi_bdev = rdev->bdev;
bio->bi_private = r1_bio;
}
@@ -2698,7 +2701,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp
continue;
/* remove last page from this bio */
bio->bi_vcnt--;
bio->bi_size -= len;
bio->bi_iter.bi_size -= len;
bio->bi_flags &= ~(1<< BIO_SEG_VALID);
}
goto bio_full;