block: Relocate bio integrity flags

Move flags affecting the integrity code out of the bio bi_flags and into
the block integrity payload.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

4 files changed, 14 insertions, 9 deletions

diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index e64733bb29b6..26aa901b961f 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -100,7 +100,7 @@ void bio_integrity_free(struct bio *bio)
         struct bio_integrity_payload *bip = bio_integrity(bio);
         struct bio_set *bs = bio->bi_pool;
 
-        if (bip->bip_owns_buf)
+        if (bip->bip_flags & BIP_BLOCK_INTEGRITY)
                 kfree(page_address(bip->bip_vec->bv_page) +
                       bip->bip_vec->bv_offset);
 
@@ -293,7 +293,7 @@ int bio_integrity_prep(struct bio *bio)
                 return -EIO;
         }
 
-        bip->bip_owns_buf = 1;
+        bip->bip_flags |= BIP_BLOCK_INTEGRITY;
         bip->bip_iter.bi_size = len;
         bip_set_seed(bip, bio->bi_iter.bi_sector);
 
diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c
index 1e971c6f8c2b..4ce636fdc15f 100644
--- a/drivers/scsi/sd_dif.c
+++ b/drivers/scsi/sd_dif.c
@@ -326,7 +326,7 @@ void sd_dif_prepare(struct request *rq, sector_t hw_sector,
                 unsigned int j;
 
                 /* Already remapped? */
-                if (bio_flagged(bio, BIO_MAPPED_INTEGRITY))
+                if (bip->bip_flags & BIP_MAPPED_INTEGRITY)
                         break;
 
                 virt = bip_get_seed(bip) & 0xffffffff;
@@ -347,7 +347,7 @@ void sd_dif_prepare(struct request *rq, sector_t hw_sector,
                         kunmap_atomic(sdt);
                 }
 
-                bio->bi_flags |= (1 << BIO_MAPPED_INTEGRITY);
+                bip->bip_flags |= BIP_MAPPED_INTEGRITY;
         }
 }
 
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 3fd36660fd10..b508cf69206d 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -315,7 +315,7 @@ struct bio_integrity_payload {
         unsigned short          bip_slab;       /* slab the bip came from */
         unsigned short          bip_vcnt;       /* # of integrity bio_vecs */
         unsigned short          bip_max_vcnt;   /* integrity bio_vec slots */
-        unsigned                bip_owns_buf:1; /* should free bip_buf */
+        unsigned short          bip_flags;      /* control flags */
 
         struct work_struct      bip_work;       /* I/O completion */
 
@@ -323,6 +323,13 @@ struct bio_integrity_payload {
         struct bio_vec          bip_inline_vecs[0];/* embedded bvec array */
 };
 
+enum bip_flags {
+        BIP_BLOCK_INTEGRITY     = 1 << 0, /* block layer owns integrity data */
+        BIP_MAPPED_INTEGRITY    = 1 << 1, /* ref tag has been remapped */
+        BIP_CTRL_NOCHECK        = 1 << 2, /* disable HBA integrity checking */
+        BIP_DISK_NOCHECK        = 1 << 3, /* disable disk integrity checking */
+};
+
 static inline sector_t bip_get_seed(struct bio_integrity_payload *bip)
 {
         return bip->bip_iter.bi_sector;
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 6a5d2f2de1b9..38bc008e4503 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -120,10 +120,8 @@ struct bio {
 #define BIO_USER_MAPPED 6       /* contains user pages */
 #define BIO_EOPNOTSUPP  7       /* not supported */
 #define BIO_NULL_MAPPED 8       /* contains invalid user pages */
-#define BIO_FS_INTEGRITY 9      /* fs owns integrity data, not block layer */
-#define BIO_QUIET       10      /* Make BIO Quiet */
-#define BIO_MAPPED_INTEGRITY 11/* integrity metadata has been remapped */
-#define BIO_SNAP_STABLE 12      /* bio data must be snapshotted during write */
+#define BIO_QUIET       9       /* Make BIO Quiet */
+#define BIO_SNAP_STABLE 10      /* bio data must be snapshotted during write */
 
 /*
  * Flags starting here get preserved by bio_reset() - this includes