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

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
  ...

4 files changed, 10 insertions, 7 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 02cb6f0ea71d..0375654adb28 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -291,6 +291,7 @@ struct queue_limits {
         unsigned char           discard_misaligned;
         unsigned char           cluster;
         unsigned char           discard_zeroes_data;
+        unsigned char           raid_partial_stripes_expensive;
 };
 
 struct request_queue {
diff --git a/include/trace/events/bcache.h b/include/trace/events/bcache.h
index 095c6e4fe1e8..7110897c3dfa 100644
--- a/include/trace/events/bcache.h
+++ b/include/trace/events/bcache.h
@@ -247,7 +247,7 @@ TRACE_EVENT(bcache_btree_write,
         TP_fast_assign(
                 __entry->bucket = PTR_BUCKET_NR(b->c, &b->key, 0);
                 __entry->block  = b->written;
-                __entry->keys   = b->sets[b->nsets].data->keys;
+                __entry->keys   = b->keys.set[b->keys.nsets].data->keys;
         ),
 
         TP_printk("bucket %zu", __entry->bucket)
@@ -411,7 +411,7 @@ TRACE_EVENT(bcache_alloc_invalidate,
         ),
 
         TP_fast_assign(
-                __entry->free           = fifo_used(&ca->free);
+                __entry->free           = fifo_used(&ca->free[RESERVE_NONE]);
                 __entry->free_inc       = fifo_used(&ca->free_inc);
                 __entry->free_inc_size  = ca->free_inc.size;
                 __entry->unused         = fifo_used(&ca->unused);
@@ -422,8 +422,8 @@ TRACE_EVENT(bcache_alloc_invalidate,
 );
 
 TRACE_EVENT(bcache_alloc_fail,
-        TP_PROTO(struct cache *ca),
-        TP_ARGS(ca),
+        TP_PROTO(struct cache *ca, unsigned reserve),
+        TP_ARGS(ca, reserve),
 
         TP_STRUCT__entry(
                 __field(unsigned,       free                    )
@@ -433,7 +433,7 @@ TRACE_EVENT(bcache_alloc_fail,
         ),
 
         TP_fast_assign(
-                __entry->free           = fifo_used(&ca->free);
+                __entry->free           = fifo_used(&ca->free[reserve]);
                 __entry->free_inc       = fifo_used(&ca->free_inc);
                 __entry->unused         = fifo_used(&ca->unused);
                 __entry->blocked        = atomic_read(&ca->set->prio_blocked);
diff --git a/include/uapi/linux/bcache.h b/include/uapi/linux/bcache.h
index 164a7e263988..22b6ad31c706 100644
--- a/include/uapi/linux/bcache.h
+++ b/include/uapi/linux/bcache.h
@@ -39,6 +39,7 @@ static inline void SET_##name(struct bkey *k, unsigned i, __u64 v)	\
 }
 
 #define KEY_SIZE_BITS           16
+#define KEY_MAX_U64S            8
 
 KEY_FIELD(KEY_PTRS,     high, 60, 3)
 KEY_FIELD(HEADER_SIZE,  high, 58, 2)
@@ -118,7 +119,7 @@ static inline struct bkey *bkey_next(const struct bkey *k)
         return (struct bkey *) (d + bkey_u64s(k));
 }
 
-static inline struct bkey *bkey_last(const struct bkey *k, unsigned nr_keys)
+static inline struct bkey *bkey_idx(const struct bkey *k, unsigned nr_keys)
 {
         __u64 *d = (void *) k;
         return (struct bkey *) (d + nr_keys);
diff --git a/include/uapi/linux/fd.h b/include/uapi/linux/fd.h
index f1f3dd5981b2..84c517cbce90 100644
--- a/include/uapi/linux/fd.h
+++ b/include/uapi/linux/fd.h
@@ -185,7 +185,8 @@ enum {
                                  * to clear media change status */
         FD_UNUSED_BIT,
         FD_DISK_CHANGED_BIT,    /* disk has been changed since last i/o */
-        FD_DISK_WRITABLE_BIT    /* disk is writable */
+        FD_DISK_WRITABLE_BIT,   /* disk is writable */
+        FD_OPEN_SHOULD_FAIL_BIT
 };
 
 #define FDSETDRVPRM _IOW(2, 0x90, struct floppy_drive_params)