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>
diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index e64733b..26aa901 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -100,7 +100,7 @@
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 @@
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 1e971c6..4ce636f 100644
--- a/drivers/scsi/sd_dif.c
+++ b/drivers/scsi/sd_dif.c
@@ -326,7 +326,7 @@
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 @@
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 3fd3666..b508cf6 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -315,7 +315,7 @@
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_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 6a5d2f2..38bc008 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -120,10 +120,8 @@
#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