Merge tag 'for-5.2/block-post-20190516' of git://git.kernel.dk/linux-block

Pull more block updates from Jens Axboe:
 "This is mainly some late lightnvm changes that came in just before the
  merge window, as well as fixes that have been queued up since the
  initial pull request was frozen.

  This contains:

   - lightnvm changes, fixing race conditions, improving memory
     utilization, and improving pblk compatability (Chansol, Igor,
     Marcin)

   - NVMe pull request with minor fixes all over the map (via Christoph)

   - remove redundant error print in sata_rcar (Geert)

   - struct_size() cleanup (Jackie)

   - dasd CONFIG_LBADF warning fix (Ming)

   - brd cond_resched() improvement (Mikulas)"

* tag 'for-5.2/block-post-20190516' of git://git.kernel.dk/linux-block: (41 commits)
  block/bio-integrity: use struct_size() in kmalloc()
  nvme: validate cntlid during controller initialisation
  nvme: change locking for the per-subsystem controller list
  nvme: trace all async notice events
  nvme: fix typos in nvme status code values
  nvme-fabrics: remove unused argument
  nvme-multipath: avoid crash on invalid subsystem cntlid enumeration
  nvme-fc: use separate work queue to avoid warning
  nvme-rdma: remove redundant reference between ib_device and tagset
  nvme-pci: mark expected switch fall-through
  nvme-pci: add known admin effects to augument admin effects log page
  nvme-pci: init shadow doorbell after each reset
  brd: add cond_resched to brd_free_pages
  sata_rcar: Remove ata_host_alloc() error printing
  s390/dasd: fix build warning in dasd_eckd_build_cp_raw
  lightnvm: pblk: use nvm_rq_to_ppa_list()
  lightnvm: pblk: simplify partial read path
  lightnvm: do not remove instance under global lock
  lightnvm: track inflight target creations
  lightnvm: pblk: recover only written metadata
  ...

1 files changed, 7 insertions, 21 deletions

diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h
index ac3ab778e976..a67855387f53 100644
--- a/drivers/lightnvm/pblk.h
+++ b/drivers/lightnvm/pblk.h
@@ -43,8 +43,6 @@
 
 #define PBLK_CACHE_NAME_LEN (DISK_NAME_LEN + 16)
 
-#define PBLK_COMMAND_TIMEOUT_MS 30000
-
 /* Max 512 LUNs per device */
 #define PBLK_MAX_LUNS_BITMAP (4)
 
@@ -123,18 +121,6 @@ struct pblk_g_ctx {
 	u64 lba;
 };
 
-/* partial read context */
-struct pblk_pr_ctx {
-	struct bio *orig_bio;
-	DECLARE_BITMAP(bitmap, NVM_MAX_VLBA);
-	unsigned int orig_nr_secs;
-	unsigned int bio_init_idx;
-	void *ppa_ptr;
-	dma_addr_t dma_ppa_list;
-	u64 lba_list_mem[NVM_MAX_VLBA];
-	u64 lba_list_media[NVM_MAX_VLBA];
-};
-
 /* Pad context */
 struct pblk_pad_rq {
 	struct pblk *pblk;
@@ -305,7 +291,6 @@ struct pblk_rl {
 
 	struct timer_list u_timer;
 
-	unsigned long long nr_secs;
 	unsigned long total_blocks;
 
 	atomic_t free_blocks;		/* Total number of free blocks (+ OP) */
@@ -440,6 +425,7 @@ struct pblk_smeta {
 
 struct pblk_w_err_gc {
 	int has_write_err;
+	int has_gc_err;
 	__le64 *lba_list;
 };
 
@@ -465,7 +451,6 @@ struct pblk_line {
 	int meta_line;			/* Metadata line id */
 	int meta_distance;		/* Distance between data and metadata */
 
-	u64 smeta_ssec;			/* Sector where smeta starts */
 	u64 emeta_ssec;			/* Sector where emeta starts */
 
 	unsigned int sec_in_line;	/* Number of usable secs in line */
@@ -762,7 +747,7 @@ unsigned int pblk_rb_read_to_bio(struct pblk_rb *rb, struct nvm_rq *rqd,
 				 unsigned int pos, unsigned int nr_entries,
 				 unsigned int count);
 int pblk_rb_copy_to_bio(struct pblk_rb *rb, struct bio *bio, sector_t lba,
-			struct ppa_addr ppa, int bio_iter, bool advanced_bio);
+			struct ppa_addr ppa);
 unsigned int pblk_rb_read_commit(struct pblk_rb *rb, unsigned int entries);
 
 unsigned int pblk_rb_sync_init(struct pblk_rb *rb, unsigned long *flags);
@@ -862,15 +847,15 @@ int pblk_update_map_gc(struct pblk *pblk, sector_t lba, struct ppa_addr ppa,
 		       struct pblk_line *gc_line, u64 paddr);
 void pblk_lookup_l2p_rand(struct pblk *pblk, struct ppa_addr *ppas,
 			  u64 *lba_list, int nr_secs);
-void pblk_lookup_l2p_seq(struct pblk *pblk, struct ppa_addr *ppas,
-			 sector_t blba, int nr_secs);
+int pblk_lookup_l2p_seq(struct pblk *pblk, struct ppa_addr *ppas,
+			 sector_t blba, int nr_secs, bool *from_cache);
 void *pblk_get_meta_for_writes(struct pblk *pblk, struct nvm_rq *rqd);
 void pblk_get_packed_meta(struct pblk *pblk, struct nvm_rq *rqd);
 
 /*
  * pblk user I/O write path
  */
-int pblk_write_to_cache(struct pblk *pblk, struct bio *bio,
+void pblk_write_to_cache(struct pblk *pblk, struct bio *bio,
 			unsigned long flags);
 int pblk_write_gc_to_cache(struct pblk *pblk, struct pblk_gc_rq *gc_rq);
 
@@ -896,7 +881,7 @@ void pblk_write_kick(struct pblk *pblk);
  * pblk read path
  */
 extern struct bio_set pblk_bio_set;
-int pblk_submit_read(struct pblk *pblk, struct bio *bio);
+void pblk_submit_read(struct pblk *pblk, struct bio *bio);
 int pblk_submit_read_gc(struct pblk *pblk, struct pblk_gc_rq *gc_rq);
 /*
  * pblk recovery
@@ -921,6 +906,7 @@ void pblk_gc_free_full_lines(struct pblk *pblk);
 void pblk_gc_sysfs_state_show(struct pblk *pblk, int *gc_enabled,
 			      int *gc_active);
 int pblk_gc_sysfs_force(struct pblk *pblk, int force);
+void pblk_put_line_back(struct pblk *pblk, struct pblk_line *line);
 
 /*
  * pblk rate limiter