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

Browse Source 
Pull block IO driver changes from Jens Axboe:

 - bcache update from Kent Overstreet.

 - two bcache fixes from Nicholas Swenson.

 - cciss pci init error fix from Andrew.

 - underflow fix in the parallel IDE pg_write code from Dan Carpenter.
   I'm sure the 1 (or 0) users of that are now happy.

 - two PCI related fixes for sx8 from Jingoo Han.

 - floppy init fix for first block read from Jiri Kosina.

 - pktcdvd error return miss fix from Julia Lawall.

 - removal of IRQF_SHARED from the SEGA Dreamcast CD-ROM code from
   Michael Opdenacker.

 - comment typo fix for the loop driver from Olaf Hering.

 - potential oops fix for null_blk from Raghavendra K T.

 - two fixes from Sam Bradshaw (Micron) for the mtip32xx driver, fixing
   an OOM problem and a problem with handling security locked conditions

* 'for-3.14/drivers' of git://git.kernel.dk/linux-block: (47 commits)
  mg_disk: Spelling s/finised/finished/
  null_blk: Null pointer deference problem in alloc_page_buffers
  mtip32xx: Correctly handle security locked condition
  mtip32xx: Make SGL container per-command to eliminate high order dma allocation
  drivers/block/loop.c: fix comment typo in loop_config_discard
  drivers/block/cciss.c:cciss_init_one(): use proper errnos
  drivers/block/paride/pg.c: underflow bug in pg_write()
  drivers/block/sx8.c: remove unnecessary pci_set_drvdata()
  drivers/block/sx8.c: use module_pci_driver()
  floppy: bail out in open() if drive is not responding to block0 read
  bcache: Fix auxiliary search trees for key size > cacheline size
  bcache: Don't return -EINTR when insert finished
  bcache: Improve bucket_prio() calculation
  bcache: Add bch_bkey_equal_header()
  bcache: update bch_bkey_try_merge
  bcache: Move insert_fixup() to btree_keys_ops
  bcache: Convert sorting to btree_keys
  bcache: Convert debug code to btree_keys
  bcache: Convert btree_iter to struct btree_keys
  bcache: Refactor bset_tree sysfs stats
  ...
This commit is contained in:
Linus Torvalds
2014-01-30 11:40:10 -08:00
parent f568849eda 14424be4db
commit 53d8ab29f8
39 changed files with 2456 additions and 1916 deletions
Download Patch File Download Diff File Expand all files Collapse all files

72
drivers/md/bcache/request.c
View File

@@ -254,6 +254,24 @@ static void bch_data_insert_keys(struct closure *cl)
closure_return(cl);
}
static int bch_keylist_realloc(struct keylist *l, unsigned u64s,
struct cache_set *c)
{
size_t oldsize = bch_keylist_nkeys(l);
size_t newsize = oldsize + u64s;
/*
* The journalling code doesn't handle the case where the keys to insert
* is bigger than an empty write: If we just return -ENOMEM here,
* bio_insert() and bio_invalidate() will insert the keys created so far
* and finish the rest when the keylist is empty.
*/
if (newsize * sizeof(uint64_t) > block_bytes(c) - sizeof(struct jset))
return -ENOMEM;
return __bch_keylist_realloc(l, u64s);
}
static void bch_data_invalidate(struct closure *cl)
{
struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
@@ -266,7 +284,7 @@ static void bch_data_invalidate(struct closure *cl)
unsigned sectors = min(bio_sectors(bio),
1U << (KEY_SIZE_BITS - 1));
if (bch_keylist_realloc(&op->insert_keys, 0, op->c))
if (bch_keylist_realloc(&op->insert_keys, 2, op->c))
goto out;
bio->bi_iter.bi_sector += sectors;
@@ -356,7 +374,7 @@ static void bch_data_insert_start(struct closure *cl)
/* 1 for the device pointer and 1 for the chksum */
if (bch_keylist_realloc(&op->insert_keys,
1 + (op->csum ? 1 : 0),
3 + (op->csum ? 1 : 0),
op->c))
continue_at(cl, bch_data_insert_keys, bcache_wq);
@@ -596,14 +614,12 @@ struct search {
/* Stack frame for bio_complete */
struct closure cl;
struct bcache_device *d;
struct bbio bio;
struct bio *orig_bio;
struct bio *cache_miss;
struct bcache_device *d;
unsigned insert_bio_sectors;
unsigned recoverable:1;
unsigned write:1;
unsigned read_dirty_data:1;
@@ -629,7 +645,8 @@ static void bch_cache_read_endio(struct bio *bio, int error)
if (error)
s->iop.error = error;
else if (ptr_stale(s->iop.c, &b->key, 0)) {
else if (!KEY_DIRTY(&b->key) &&
ptr_stale(s->iop.c, &b->key, 0)) {
atomic_long_inc(&s->iop.c->cache_read_races);
s->iop.error = -EINTR;
}
@@ -710,10 +727,13 @@ static void cache_lookup(struct closure *cl)
{
struct search *s = container_of(cl, struct search, iop.cl);
struct bio *bio = &s->bio.bio;
int ret;
int ret = bch_btree_map_keys(&s->op, s->iop.c,
&KEY(s->iop.inode, bio->bi_iter.bi_sector, 0),
cache_lookup_fn, MAP_END_KEY);
bch_btree_op_init(&s->op, -1);
ret = bch_btree_map_keys(&s->op, s->iop.c,
&KEY(s->iop.inode, bio->bi_iter.bi_sector, 0),
cache_lookup_fn, MAP_END_KEY);
if (ret == -EAGAIN)
continue_at(cl, cache_lookup, bcache_wq);
@@ -754,12 +774,12 @@ static void bio_complete(struct search *s)
}
}
static void do_bio_hook(struct search *s)
static void do_bio_hook(struct search *s, struct bio *orig_bio)
{
struct bio *bio = &s->bio.bio;
bio_init(bio);
__bio_clone_fast(bio, s->orig_bio);
__bio_clone_fast(bio, orig_bio);
bio->bi_end_io = request_endio;
bio->bi_private = &s->cl;
@@ -778,26 +798,32 @@ static void search_free(struct closure *cl)
mempool_free(s, s->d->c->search);
}
static struct search *search_alloc(struct bio *bio, struct bcache_device *d)
static inline struct search *search_alloc(struct bio *bio,
struct bcache_device *d)
{
struct search *s;
s = mempool_alloc(d->c->search, GFP_NOIO);
memset(s, 0, offsetof(struct search, iop.insert_keys));
__closure_init(&s->cl, NULL);
closure_init(&s->cl, NULL);
do_bio_hook(s, bio);
s->iop.inode = d->id;
s->iop.c = d->c;
s->d = d;
s->op.lock = -1;
s->iop.write_point = hash_long((unsigned long) current, 16);
s->orig_bio = bio;
s->write = (bio->bi_rw & REQ_WRITE) != 0;
s->iop.flush_journal = (bio->bi_rw & (REQ_FLUSH|REQ_FUA)) != 0;
s->cache_miss = NULL;
s->d = d;
s->recoverable = 1;
s->write = (bio->bi_rw & REQ_WRITE) != 0;
s->read_dirty_data = 0;
s->start_time = jiffies;
do_bio_hook(s);
s->iop.c = d->c;
s->iop.bio = NULL;
s->iop.inode = d->id;
s->iop.write_point = hash_long((unsigned long) current, 16);
s->iop.write_prio = 0;
s->iop.error = 0;
s->iop.flags = 0;
s->iop.flush_journal = (bio->bi_rw & (REQ_FLUSH|REQ_FUA)) != 0;
return s;
}
@@ -843,7 +869,7 @@ static void cached_dev_read_error(struct closure *cl)
trace_bcache_read_retry(s->orig_bio);
s->iop.error = 0;
do_bio_hook(s);
do_bio_hook(s, s->orig_bio);
/* XXX: invalidate cache */