[dm-devel] [PATCH 12/15] block: merge blk_types.h into bio.h
Christoph Hellwig
hch at lst.de
Thu May 18 13:18:09 UTC 2017
We've cleaned up our headers sufficiently that we don't need this split
anymore.
Signed-off-by: Christoph Hellwig <hch at lst.de>
---
block/blk-wbt.c | 2 +-
drivers/target/target_core_pscsi.c | 2 +-
include/linux/bio.h | 307 +++++++++++++++++++++++++++++++++++-
include/linux/blk_types.h | 315 -------------------------------------
include/linux/swap.h | 2 +-
5 files changed, 308 insertions(+), 320 deletions(-)
delete mode 100644 include/linux/blk_types.h
diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index 17676f4d7fd1..ad355fcda96c 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -19,7 +19,7 @@
*
*/
#include <linux/kernel.h>
-#include <linux/blk_types.h>
+#include <linux/bio.h>
#include <linux/slab.h>
#include <linux/backing-dev.h>
#include <linux/swap.h>
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 3e4abb13f8ea..1fd365ed83d6 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -27,7 +27,7 @@
#include <linux/parser.h>
#include <linux/timer.h>
#include <linux/blkdev.h>
-#include <linux/blk_types.h>
+#include <linux/bio.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/genhd.h>
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d1b04b0e99cf..f6a7c9e65ea0 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -25,10 +25,18 @@
#ifdef CONFIG_BLOCK
+#include <linux/types.h>
+#include <linux/bvec.h>
#include <asm/io.h>
-/* struct bio, bio_vec and BIO_* flags are defined in blk_types.h */
-#include <linux/blk_types.h>
+struct bio_set;
+struct bio;
+struct bio_integrity_payload;
+struct page;
+struct block_device;
+struct io_context;
+struct cgroup_subsys_state;
+typedef void (bio_end_io_t) (struct bio *);
#define BIO_DEBUG
@@ -40,6 +48,301 @@
#define BIO_MAX_PAGES 256
+struct blk_issue_stat {
+ u64 stat;
+};
+
+/*
+ * main unit of I/O for the block layer and lower layers (ie drivers and
+ * stacking drivers)
+ */
+struct bio {
+ struct bio *bi_next; /* request queue link */
+ struct block_device *bi_bdev;
+ int bi_error;
+ unsigned int bi_opf; /* bottom bits req flags,
+ * top bits REQ_OP. Use
+ * accessors.
+ */
+ unsigned short bi_flags; /* status, etc and bvec pool number */
+ unsigned short bi_ioprio;
+
+ struct bvec_iter bi_iter;
+
+ /* Number of segments in this BIO after
+ * physical address coalescing is performed.
+ */
+ unsigned int bi_phys_segments;
+
+ /*
+ * To keep track of the max segment size, we account for the
+ * sizes of the first and last mergeable segments in this bio.
+ */
+ unsigned int bi_seg_front_size;
+ unsigned int bi_seg_back_size;
+
+ atomic_t __bi_remaining;
+
+ bio_end_io_t *bi_end_io;
+
+ void *bi_private;
+#ifdef CONFIG_BLK_CGROUP
+ /*
+ * Optional ioc and css associated with this bio. Put on bio
+ * release. Read comment on top of bio_associate_current().
+ */
+ struct io_context *bi_ioc;
+ struct cgroup_subsys_state *bi_css;
+#ifdef CONFIG_BLK_DEV_THROTTLING_LOW
+ void *bi_cg_private;
+ struct blk_issue_stat bi_issue_stat;
+#endif
+#endif
+ union {
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+ struct bio_integrity_payload *bi_integrity; /* data integrity */
+#endif
+ };
+
+ unsigned short bi_vcnt; /* how many bio_vec's */
+
+ /*
+ * Everything starting with bi_max_vecs will be preserved by bio_reset()
+ */
+
+ unsigned short bi_max_vecs; /* max bvl_vecs we can hold */
+
+ atomic_t __bi_cnt; /* pin count */
+
+ struct bio_vec *bi_io_vec; /* the actual vec list */
+
+ struct bio_set *bi_pool;
+
+ /*
+ * We can inline a number of vecs at the end of the bio, to avoid
+ * double allocations for a small number of bio_vecs. This member
+ * MUST obviously be kept at the very end of the bio.
+ */
+ struct bio_vec bi_inline_vecs[0];
+};
+
+#define BIO_RESET_BYTES offsetof(struct bio, bi_max_vecs)
+
+/*
+ * bio flags
+ */
+#define BIO_SEG_VALID 1 /* bi_phys_segments valid */
+#define BIO_CLONED 2 /* doesn't own data */
+#define BIO_BOUNCED 3 /* bio is a bounce bio */
+#define BIO_USER_MAPPED 4 /* contains user pages */
+#define BIO_NULL_MAPPED 5 /* contains invalid user pages */
+#define BIO_QUIET 6 /* Make BIO Quiet */
+#define BIO_CHAIN 7 /* chained bio, ->bi_remaining in effect */
+#define BIO_REFFED 8 /* bio has elevated ->bi_cnt */
+#define BIO_THROTTLED 9 /* This bio has already been subjected to
+ * throttling rules. Don't do it again. */
+#define BIO_TRACE_COMPLETION 10 /* bio_endio() should trace the final completion
+ * of this bio. */
+/* See BVEC_POOL_OFFSET below before adding new flags */
+
+/*
+ * We support 6 different bvec pools, the last one is magic in that it
+ * is backed by a mempool.
+ */
+#define BVEC_POOL_NR 6
+#define BVEC_POOL_MAX (BVEC_POOL_NR - 1)
+
+/*
+ * Top 3 bits of bio flags indicate the pool the bvecs came from. We add
+ * 1 to the actual index so that 0 indicates that there are no bvecs to be
+ * freed.
+ */
+#define BVEC_POOL_BITS (3)
+#define BVEC_POOL_OFFSET (16 - BVEC_POOL_BITS)
+#define BVEC_POOL_IDX(bio) ((bio)->bi_flags >> BVEC_POOL_OFFSET)
+#if (1<< BVEC_POOL_BITS) < (BVEC_POOL_NR+1)
+# error "BVEC_POOL_BITS is too small"
+#endif
+
+/*
+ * Flags starting here get preserved by bio_reset() - this includes
+ * only BVEC_POOL_IDX()
+ */
+#define BIO_RESET_BITS BVEC_POOL_OFFSET
+
+/*
+ * Operations and flags common to the bio and request structures.
+ * We use 8 bits for encoding the operation, and the remaining 24 for flags.
+ *
+ * The least significant bit of the operation number indicates the data
+ * transfer direction:
+ *
+ * - if the least significant bit is set transfers are TO the device
+ * - if the least significant bit is not set transfers are FROM the device
+ *
+ * If a operation does not transfer data the least significant bit has no
+ * meaning.
+ */
+#define REQ_OP_BITS 8
+#define REQ_OP_MASK ((1 << REQ_OP_BITS) - 1)
+#define REQ_FLAG_BITS 24
+
+enum req_opf {
+ /* read sectors from the device */
+ REQ_OP_READ = 0,
+ /* write sectors to the device */
+ REQ_OP_WRITE = 1,
+ /* flush the volatile write cache */
+ REQ_OP_FLUSH = 2,
+ /* discard sectors */
+ REQ_OP_DISCARD = 3,
+ /* get zone information */
+ REQ_OP_ZONE_REPORT = 4,
+ /* securely erase sectors */
+ REQ_OP_SECURE_ERASE = 5,
+ /* seset a zone write pointer */
+ REQ_OP_ZONE_RESET = 6,
+ /* write the same sector many times */
+ REQ_OP_WRITE_SAME = 7,
+ /* write the zero filled sector many times */
+ REQ_OP_WRITE_ZEROES = 9,
+
+ /* SCSI passthrough using struct scsi_request */
+ REQ_OP_SCSI_IN = 32,
+ REQ_OP_SCSI_OUT = 33,
+ /* Driver private requests */
+ REQ_OP_DRV_IN = 34,
+ REQ_OP_DRV_OUT = 35,
+
+ REQ_OP_LAST,
+};
+
+enum req_flag_bits {
+ __REQ_FAILFAST_DEV = /* no driver retries of device errors */
+ REQ_OP_BITS,
+ __REQ_FAILFAST_TRANSPORT, /* no driver retries of transport errors */
+ __REQ_FAILFAST_DRIVER, /* no driver retries of driver errors */
+ __REQ_SYNC, /* request is sync (sync write or read) */
+ __REQ_META, /* metadata io request */
+ __REQ_PRIO, /* boost priority in cfq */
+ __REQ_NOMERGE, /* don't touch this for merging */
+ __REQ_IDLE, /* anticipate more IO after this one */
+ __REQ_INTEGRITY, /* I/O includes block integrity payload */
+ __REQ_FUA, /* forced unit access */
+ __REQ_PREFLUSH, /* request for cache flush */
+ __REQ_RAHEAD, /* read ahead, can fail anytime */
+ __REQ_BACKGROUND, /* background IO */
+
+ /* command specific flags for REQ_OP_WRITE_ZEROES: */
+ __REQ_NOUNMAP, /* do not free blocks when zeroing */
+
+ __REQ_NR_BITS, /* stops here */
+};
+
+#define REQ_FAILFAST_DEV (1ULL << __REQ_FAILFAST_DEV)
+#define REQ_FAILFAST_TRANSPORT (1ULL << __REQ_FAILFAST_TRANSPORT)
+#define REQ_FAILFAST_DRIVER (1ULL << __REQ_FAILFAST_DRIVER)
+#define REQ_SYNC (1ULL << __REQ_SYNC)
+#define REQ_META (1ULL << __REQ_META)
+#define REQ_PRIO (1ULL << __REQ_PRIO)
+#define REQ_NOMERGE (1ULL << __REQ_NOMERGE)
+#define REQ_IDLE (1ULL << __REQ_IDLE)
+#define REQ_INTEGRITY (1ULL << __REQ_INTEGRITY)
+#define REQ_FUA (1ULL << __REQ_FUA)
+#define REQ_PREFLUSH (1ULL << __REQ_PREFLUSH)
+#define REQ_RAHEAD (1ULL << __REQ_RAHEAD)
+#define REQ_BACKGROUND (1ULL << __REQ_BACKGROUND)
+
+#define REQ_NOUNMAP (1ULL << __REQ_NOUNMAP)
+
+#define REQ_FAILFAST_MASK \
+ (REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER)
+
+#define REQ_NOMERGE_FLAGS \
+ (REQ_NOMERGE | REQ_PREFLUSH | REQ_FUA)
+
+#define bio_op(bio) \
+ ((bio)->bi_opf & REQ_OP_MASK)
+#define req_op(req) \
+ ((req)->cmd_flags & REQ_OP_MASK)
+
+/* obsolete, don't use in new code */
+static inline void bio_set_op_attrs(struct bio *bio, unsigned op,
+ unsigned op_flags)
+{
+ bio->bi_opf = op | op_flags;
+}
+
+static inline bool op_is_write(unsigned int op)
+{
+ return (op & 1);
+}
+
+/*
+ * Check if the bio or request is one that needs special treatment in the
+ * flush state machine.
+ */
+static inline bool op_is_flush(unsigned int op)
+{
+ return op & (REQ_FUA | REQ_PREFLUSH);
+}
+
+/*
+ * Reads are always treated as synchronous, as are requests with the FUA or
+ * PREFLUSH flag. Other operations may be marked as synchronous using the
+ * REQ_SYNC flag.
+ */
+static inline bool op_is_sync(unsigned int op)
+{
+ return (op & REQ_OP_MASK) == REQ_OP_READ ||
+ (op & (REQ_SYNC | REQ_FUA | REQ_PREFLUSH));
+}
+
+typedef unsigned int blk_qc_t;
+#define BLK_QC_T_NONE -1U
+#define BLK_QC_T_SHIFT 16
+#define BLK_QC_T_INTERNAL (1U << 31)
+
+static inline bool blk_qc_t_valid(blk_qc_t cookie)
+{
+ return cookie != BLK_QC_T_NONE;
+}
+
+static inline blk_qc_t blk_tag_to_qc_t(unsigned int tag, unsigned int queue_num,
+ bool internal)
+{
+ blk_qc_t ret = tag | (queue_num << BLK_QC_T_SHIFT);
+
+ if (internal)
+ ret |= BLK_QC_T_INTERNAL;
+
+ return ret;
+}
+
+static inline unsigned int blk_qc_t_to_queue_num(blk_qc_t cookie)
+{
+ return (cookie & ~BLK_QC_T_INTERNAL) >> BLK_QC_T_SHIFT;
+}
+
+static inline unsigned int blk_qc_t_to_tag(blk_qc_t cookie)
+{
+ return cookie & ((1u << BLK_QC_T_SHIFT) - 1);
+}
+
+static inline bool blk_qc_t_is_internal(blk_qc_t cookie)
+{
+ return (cookie & BLK_QC_T_INTERNAL) != 0;
+}
+
+struct blk_rq_stat {
+ s64 mean;
+ u64 min;
+ u64 max;
+ s32 nr_samples;
+ s32 nr_batch;
+ u64 batch;
+};
+
#define bio_prio(bio) (bio)->bi_ioprio
#define bio_set_prio(bio, prio) ((bio)->bi_ioprio = prio)
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
deleted file mode 100644
index 61339bc44400..000000000000
--- a/include/linux/blk_types.h
+++ /dev/null
@@ -1,315 +0,0 @@
-/*
- * Block data types and constants. Directly include this file only to
- * break include dependency loop.
- */
-#ifndef __LINUX_BLK_TYPES_H
-#define __LINUX_BLK_TYPES_H
-
-#include <linux/types.h>
-#include <linux/bvec.h>
-
-struct bio_set;
-struct bio;
-struct bio_integrity_payload;
-struct page;
-struct block_device;
-struct io_context;
-struct cgroup_subsys_state;
-typedef void (bio_end_io_t) (struct bio *);
-
-struct blk_issue_stat {
- u64 stat;
-};
-
-/*
- * main unit of I/O for the block layer and lower layers (ie drivers and
- * stacking drivers)
- */
-struct bio {
- struct bio *bi_next; /* request queue link */
- struct block_device *bi_bdev;
- int bi_error;
- unsigned int bi_opf; /* bottom bits req flags,
- * top bits REQ_OP. Use
- * accessors.
- */
- unsigned short bi_flags; /* status, etc and bvec pool number */
- unsigned short bi_ioprio;
-
- struct bvec_iter bi_iter;
-
- /* Number of segments in this BIO after
- * physical address coalescing is performed.
- */
- unsigned int bi_phys_segments;
-
- /*
- * To keep track of the max segment size, we account for the
- * sizes of the first and last mergeable segments in this bio.
- */
- unsigned int bi_seg_front_size;
- unsigned int bi_seg_back_size;
-
- atomic_t __bi_remaining;
-
- bio_end_io_t *bi_end_io;
-
- void *bi_private;
-#ifdef CONFIG_BLK_CGROUP
- /*
- * Optional ioc and css associated with this bio. Put on bio
- * release. Read comment on top of bio_associate_current().
- */
- struct io_context *bi_ioc;
- struct cgroup_subsys_state *bi_css;
-#ifdef CONFIG_BLK_DEV_THROTTLING_LOW
- void *bi_cg_private;
- struct blk_issue_stat bi_issue_stat;
-#endif
-#endif
- union {
-#if defined(CONFIG_BLK_DEV_INTEGRITY)
- struct bio_integrity_payload *bi_integrity; /* data integrity */
-#endif
- };
-
- unsigned short bi_vcnt; /* how many bio_vec's */
-
- /*
- * Everything starting with bi_max_vecs will be preserved by bio_reset()
- */
-
- unsigned short bi_max_vecs; /* max bvl_vecs we can hold */
-
- atomic_t __bi_cnt; /* pin count */
-
- struct bio_vec *bi_io_vec; /* the actual vec list */
-
- struct bio_set *bi_pool;
-
- /*
- * We can inline a number of vecs at the end of the bio, to avoid
- * double allocations for a small number of bio_vecs. This member
- * MUST obviously be kept at the very end of the bio.
- */
- struct bio_vec bi_inline_vecs[0];
-};
-
-#define BIO_RESET_BYTES offsetof(struct bio, bi_max_vecs)
-
-/*
- * bio flags
- */
-#define BIO_SEG_VALID 1 /* bi_phys_segments valid */
-#define BIO_CLONED 2 /* doesn't own data */
-#define BIO_BOUNCED 3 /* bio is a bounce bio */
-#define BIO_USER_MAPPED 4 /* contains user pages */
-#define BIO_NULL_MAPPED 5 /* contains invalid user pages */
-#define BIO_QUIET 6 /* Make BIO Quiet */
-#define BIO_CHAIN 7 /* chained bio, ->bi_remaining in effect */
-#define BIO_REFFED 8 /* bio has elevated ->bi_cnt */
-#define BIO_THROTTLED 9 /* This bio has already been subjected to
- * throttling rules. Don't do it again. */
-#define BIO_TRACE_COMPLETION 10 /* bio_endio() should trace the final completion
- * of this bio. */
-/* See BVEC_POOL_OFFSET below before adding new flags */
-
-/*
- * We support 6 different bvec pools, the last one is magic in that it
- * is backed by a mempool.
- */
-#define BVEC_POOL_NR 6
-#define BVEC_POOL_MAX (BVEC_POOL_NR - 1)
-
-/*
- * Top 3 bits of bio flags indicate the pool the bvecs came from. We add
- * 1 to the actual index so that 0 indicates that there are no bvecs to be
- * freed.
- */
-#define BVEC_POOL_BITS (3)
-#define BVEC_POOL_OFFSET (16 - BVEC_POOL_BITS)
-#define BVEC_POOL_IDX(bio) ((bio)->bi_flags >> BVEC_POOL_OFFSET)
-#if (1<< BVEC_POOL_BITS) < (BVEC_POOL_NR+1)
-# error "BVEC_POOL_BITS is too small"
-#endif
-
-/*
- * Flags starting here get preserved by bio_reset() - this includes
- * only BVEC_POOL_IDX()
- */
-#define BIO_RESET_BITS BVEC_POOL_OFFSET
-
-/*
- * Operations and flags common to the bio and request structures.
- * We use 8 bits for encoding the operation, and the remaining 24 for flags.
- *
- * The least significant bit of the operation number indicates the data
- * transfer direction:
- *
- * - if the least significant bit is set transfers are TO the device
- * - if the least significant bit is not set transfers are FROM the device
- *
- * If a operation does not transfer data the least significant bit has no
- * meaning.
- */
-#define REQ_OP_BITS 8
-#define REQ_OP_MASK ((1 << REQ_OP_BITS) - 1)
-#define REQ_FLAG_BITS 24
-
-enum req_opf {
- /* read sectors from the device */
- REQ_OP_READ = 0,
- /* write sectors to the device */
- REQ_OP_WRITE = 1,
- /* flush the volatile write cache */
- REQ_OP_FLUSH = 2,
- /* discard sectors */
- REQ_OP_DISCARD = 3,
- /* get zone information */
- REQ_OP_ZONE_REPORT = 4,
- /* securely erase sectors */
- REQ_OP_SECURE_ERASE = 5,
- /* seset a zone write pointer */
- REQ_OP_ZONE_RESET = 6,
- /* write the same sector many times */
- REQ_OP_WRITE_SAME = 7,
- /* write the zero filled sector many times */
- REQ_OP_WRITE_ZEROES = 9,
-
- /* SCSI passthrough using struct scsi_request */
- REQ_OP_SCSI_IN = 32,
- REQ_OP_SCSI_OUT = 33,
- /* Driver private requests */
- REQ_OP_DRV_IN = 34,
- REQ_OP_DRV_OUT = 35,
-
- REQ_OP_LAST,
-};
-
-enum req_flag_bits {
- __REQ_FAILFAST_DEV = /* no driver retries of device errors */
- REQ_OP_BITS,
- __REQ_FAILFAST_TRANSPORT, /* no driver retries of transport errors */
- __REQ_FAILFAST_DRIVER, /* no driver retries of driver errors */
- __REQ_SYNC, /* request is sync (sync write or read) */
- __REQ_META, /* metadata io request */
- __REQ_PRIO, /* boost priority in cfq */
- __REQ_NOMERGE, /* don't touch this for merging */
- __REQ_IDLE, /* anticipate more IO after this one */
- __REQ_INTEGRITY, /* I/O includes block integrity payload */
- __REQ_FUA, /* forced unit access */
- __REQ_PREFLUSH, /* request for cache flush */
- __REQ_RAHEAD, /* read ahead, can fail anytime */
- __REQ_BACKGROUND, /* background IO */
-
- /* command specific flags for REQ_OP_WRITE_ZEROES: */
- __REQ_NOUNMAP, /* do not free blocks when zeroing */
-
- __REQ_NR_BITS, /* stops here */
-};
-
-#define REQ_FAILFAST_DEV (1ULL << __REQ_FAILFAST_DEV)
-#define REQ_FAILFAST_TRANSPORT (1ULL << __REQ_FAILFAST_TRANSPORT)
-#define REQ_FAILFAST_DRIVER (1ULL << __REQ_FAILFAST_DRIVER)
-#define REQ_SYNC (1ULL << __REQ_SYNC)
-#define REQ_META (1ULL << __REQ_META)
-#define REQ_PRIO (1ULL << __REQ_PRIO)
-#define REQ_NOMERGE (1ULL << __REQ_NOMERGE)
-#define REQ_IDLE (1ULL << __REQ_IDLE)
-#define REQ_INTEGRITY (1ULL << __REQ_INTEGRITY)
-#define REQ_FUA (1ULL << __REQ_FUA)
-#define REQ_PREFLUSH (1ULL << __REQ_PREFLUSH)
-#define REQ_RAHEAD (1ULL << __REQ_RAHEAD)
-#define REQ_BACKGROUND (1ULL << __REQ_BACKGROUND)
-
-#define REQ_NOUNMAP (1ULL << __REQ_NOUNMAP)
-
-#define REQ_FAILFAST_MASK \
- (REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER)
-
-#define REQ_NOMERGE_FLAGS \
- (REQ_NOMERGE | REQ_PREFLUSH | REQ_FUA)
-
-#define bio_op(bio) \
- ((bio)->bi_opf & REQ_OP_MASK)
-#define req_op(req) \
- ((req)->cmd_flags & REQ_OP_MASK)
-
-/* obsolete, don't use in new code */
-static inline void bio_set_op_attrs(struct bio *bio, unsigned op,
- unsigned op_flags)
-{
- bio->bi_opf = op | op_flags;
-}
-
-static inline bool op_is_write(unsigned int op)
-{
- return (op & 1);
-}
-
-/*
- * Check if the bio or request is one that needs special treatment in the
- * flush state machine.
- */
-static inline bool op_is_flush(unsigned int op)
-{
- return op & (REQ_FUA | REQ_PREFLUSH);
-}
-
-/*
- * Reads are always treated as synchronous, as are requests with the FUA or
- * PREFLUSH flag. Other operations may be marked as synchronous using the
- * REQ_SYNC flag.
- */
-static inline bool op_is_sync(unsigned int op)
-{
- return (op & REQ_OP_MASK) == REQ_OP_READ ||
- (op & (REQ_SYNC | REQ_FUA | REQ_PREFLUSH));
-}
-
-typedef unsigned int blk_qc_t;
-#define BLK_QC_T_NONE -1U
-#define BLK_QC_T_SHIFT 16
-#define BLK_QC_T_INTERNAL (1U << 31)
-
-static inline bool blk_qc_t_valid(blk_qc_t cookie)
-{
- return cookie != BLK_QC_T_NONE;
-}
-
-static inline blk_qc_t blk_tag_to_qc_t(unsigned int tag, unsigned int queue_num,
- bool internal)
-{
- blk_qc_t ret = tag | (queue_num << BLK_QC_T_SHIFT);
-
- if (internal)
- ret |= BLK_QC_T_INTERNAL;
-
- return ret;
-}
-
-static inline unsigned int blk_qc_t_to_queue_num(blk_qc_t cookie)
-{
- return (cookie & ~BLK_QC_T_INTERNAL) >> BLK_QC_T_SHIFT;
-}
-
-static inline unsigned int blk_qc_t_to_tag(blk_qc_t cookie)
-{
- return cookie & ((1u << BLK_QC_T_SHIFT) - 1);
-}
-
-static inline bool blk_qc_t_is_internal(blk_qc_t cookie)
-{
- return (cookie & BLK_QC_T_INTERNAL) != 0;
-}
-
-struct blk_rq_stat {
- s64 mean;
- u64 min;
- u64 max;
- s32 nr_samples;
- s32 nr_batch;
- u64 batch;
-};
-
-#endif /* __LINUX_BLK_TYPES_H */
diff --git a/include/linux/swap.h b/include/linux/swap.h
index ba5882419a7d..d5664c7d7d93 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -328,7 +328,7 @@ extern void kswapd_stop(int nid);
#ifdef CONFIG_SWAP
-#include <linux/blk_types.h> /* for bio_end_io_t */
+#include <linux/bio.h> /* for bio_end_io_t */
/* linux/mm/page_io.c */
extern int swap_readpage(struct page *);
--
2.11.0
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