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| author |   Martin K. Petersen <martin.petersen@oracle.com> | 2014-09-26 19:20:04 -0400 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2014-09-27 09:14:54 -0600 |
| commit | b1f01388574c9329922f760fc2a7335c2d14b08b (patch) | |
| tree | e7c3715508c780745026678266c9e7718fa0be32 | |
| parent | block: Add a disk flag to block integrity profile (diff) | |
| download | linux-dev-b1f01388574c9329922f760fc2a7335c2d14b08b.tar.xz linux-dev-b1f01388574c9329922f760fc2a7335c2d14b08b.zip | |
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>
| -rw-r--r-- | block/bio-integrity.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/sd_dif.c | 4 | ||||
| -rw-r--r-- | include/linux/bio.h | 9 | ||||
| -rw-r--r-- | include/linux/blk_types.h | 6 |
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 |