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-rw-r--r--fs/bio-integrity.c170
-rw-r--r--fs/bio.c502
-rw-r--r--fs/btrfs/check-integrity.c8
-rw-r--r--fs/btrfs/compression.c27
-rw-r--r--fs/btrfs/disk-io.c13
-rw-r--r--fs/btrfs/extent_io.c49
-rw-r--r--fs/btrfs/file-item.c19
-rw-r--r--fs/btrfs/inode.c37
-rw-r--r--fs/btrfs/raid56.c22
-rw-r--r--fs/btrfs/scrub.c12
-rw-r--r--fs/btrfs/volumes.c19
-rw-r--r--fs/buffer.c12
-rw-r--r--fs/direct-io.c4
-rw-r--r--fs/ext4/page-io.c8
-rw-r--r--fs/f2fs/data.c35
-rw-r--r--fs/gfs2/lops.c2
-rw-r--r--fs/gfs2/ops_fstype.c2
-rw-r--r--fs/hfsplus/wrapper.c2
-rw-r--r--fs/jfs/jfs_logmgr.c12
-rw-r--r--fs/jfs/jfs_metapage.c9
-rw-r--r--fs/logfs/dev_bdev.c38
-rw-r--r--fs/mpage.c19
-rw-r--r--fs/nfs/blocklayout/blocklayout.c43
-rw-r--r--fs/nilfs2/segbuf.c3
-rw-r--r--fs/ocfs2/cluster/heartbeat.c2
-rw-r--r--fs/xfs/xfs_aops.c2
-rw-r--r--fs/xfs/xfs_buf.c4
27 files changed, 456 insertions, 619 deletions
diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index fc60b31..0bad24d 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -134,8 +134,7 @@ int bio_integrity_add_page(struct bio *bio, struct page *page,
return 0;
}
- iv = bip_vec_idx(bip, bip->bip_vcnt);
- BUG_ON(iv == NULL);
+ iv = bip->bip_vec + bip->bip_vcnt;
iv->bv_page = page;
iv->bv_len = len;
@@ -203,6 +202,12 @@ static inline unsigned int bio_integrity_hw_sectors(struct blk_integrity *bi,
return sectors;
}
+static inline unsigned int bio_integrity_bytes(struct blk_integrity *bi,
+ unsigned int sectors)
+{
+ return bio_integrity_hw_sectors(bi, sectors) * bi->tuple_size;
+}
+
/**
* bio_integrity_tag_size - Retrieve integrity tag space
* @bio: bio to inspect
@@ -215,9 +220,9 @@ unsigned int bio_integrity_tag_size(struct bio *bio)
{
struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
- BUG_ON(bio->bi_size == 0);
+ BUG_ON(bio->bi_iter.bi_size == 0);
- return bi->tag_size * (bio->bi_size / bi->sector_size);
+ return bi->tag_size * (bio->bi_iter.bi_size / bi->sector_size);
}
EXPORT_SYMBOL(bio_integrity_tag_size);
@@ -235,9 +240,9 @@ int bio_integrity_tag(struct bio *bio, void *tag_buf, unsigned int len, int set)
nr_sectors = bio_integrity_hw_sectors(bi,
DIV_ROUND_UP(len, bi->tag_size));
- if (nr_sectors * bi->tuple_size > bip->bip_size) {
- printk(KERN_ERR "%s: tag too big for bio: %u > %u\n",
- __func__, nr_sectors * bi->tuple_size, bip->bip_size);
+ if (nr_sectors * bi->tuple_size > bip->bip_iter.bi_size) {
+ printk(KERN_ERR "%s: tag too big for bio: %u > %u\n", __func__,
+ nr_sectors * bi->tuple_size, bip->bip_iter.bi_size);
return -1;
}
@@ -299,29 +304,30 @@ static void bio_integrity_generate(struct bio *bio)
{
struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
struct blk_integrity_exchg bix;
- struct bio_vec *bv;
- sector_t sector = bio->bi_sector;
- unsigned int i, sectors, total;
+ struct bio_vec bv;
+ struct bvec_iter iter;
+ sector_t sector = bio->bi_iter.bi_sector;
+ unsigned int sectors, total;
void *prot_buf = bio->bi_integrity->bip_buf;
total = 0;
bix.disk_name = bio->bi_bdev->bd_disk->disk_name;
bix.sector_size = bi->sector_size;
- bio_for_each_segment(bv, bio, i) {
- void *kaddr = kmap_atomic(bv->bv_page);
- bix.data_buf = kaddr + bv->bv_offset;
- bix.data_size = bv->bv_len;
+ bio_for_each_segment(bv, bio, iter) {
+ void *kaddr = kmap_atomic(bv.bv_page);
+ bix.data_buf = kaddr + bv.bv_offset;
+ bix.data_size = bv.bv_len;
bix.prot_buf = prot_buf;
bix.sector = sector;
bi->generate_fn(&bix);
- sectors = bv->bv_len / bi->sector_size;
+ sectors = bv.bv_len / bi->sector_size;
sector += sectors;
prot_buf += sectors * bi->tuple_size;
total += sectors * bi->tuple_size;
- BUG_ON(total > bio->bi_integrity->bip_size);
+ BUG_ON(total > bio->bi_integrity->bip_iter.bi_size);
kunmap_atomic(kaddr);
}
@@ -386,8 +392,8 @@ int bio_integrity_prep(struct bio *bio)
bip->bip_owns_buf = 1;
bip->bip_buf = buf;
- bip->bip_size = len;
- bip->bip_sector = bio->bi_sector;
+ bip->bip_iter.bi_size = len;
+ bip->bip_iter.bi_sector = bio->bi_iter.bi_sector;
/* Map it */
offset = offset_in_page(buf);
@@ -442,16 +448,18 @@ static int bio_integrity_verify(struct bio *bio)
struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
struct blk_integrity_exchg bix;
struct bio_vec *bv;
- sector_t sector = bio->bi_integrity->bip_sector;
- unsigned int i, sectors, total, ret;
+ sector_t sector = bio->bi_integrity->bip_iter.bi_sector;
+ unsigned int sectors, total, ret;
void *prot_buf = bio->bi_integrity->bip_buf;
+ int i;
ret = total = 0;
bix.disk_name = bio->bi_bdev->bd_disk->disk_name;
bix.sector_size = bi->sector_size;
- bio_for_each_segment(bv, bio, i) {
+ bio_for_each_segment_all(bv, bio, i) {
void *kaddr = kmap_atomic(bv->bv_page);
+
bix.data_buf = kaddr + bv->bv_offset;
bix.data_size = bv->bv_len;
bix.prot_buf = prot_buf;
@@ -468,7 +476,7 @@ static int bio_integrity_verify(struct bio *bio)
sector += sectors;
prot_buf += sectors * bi->tuple_size;
total += sectors * bi->tuple_size;
- BUG_ON(total > bio->bi_integrity->bip_size);
+ BUG_ON(total > bio->bi_integrity->bip_iter.bi_size);
kunmap_atomic(kaddr);
}
@@ -495,7 +503,7 @@ static void bio_integrity_verify_fn(struct work_struct *work)
/* Restore original bio completion handler */
bio->bi_end_io = bip->bip_end_io;
- bio_endio(bio, error);
+ bio_endio_nodec(bio, error);
}
/**
@@ -533,56 +541,6 @@ void bio_integrity_endio(struct bio *bio, int error)
EXPORT_SYMBOL(bio_integrity_endio);
/**
- * bio_integrity_mark_head - Advance bip_vec skip bytes
- * @bip: Integrity vector to advance
- * @skip: Number of bytes to advance it
- */
-void bio_integrity_mark_head(struct bio_integrity_payload *bip,
- unsigned int skip)
-{
- struct bio_vec *iv;
- unsigned int i;
-
- bip_for_each_vec(iv, bip, i) {
- if (skip == 0) {
- bip->bip_idx = i;
- return;
- } else if (skip >= iv->bv_len) {
- skip -= iv->bv_len;
- } else { /* skip < iv->bv_len) */
- iv->bv_offset += skip;
- iv->bv_len -= skip;
- bip->bip_idx = i;
- return;
- }
- }
-}
-
-/**
- * bio_integrity_mark_tail - Truncate bip_vec to be len bytes long
- * @bip: Integrity vector to truncate
- * @len: New length of integrity vector
- */
-void bio_integrity_mark_tail(struct bio_integrity_payload *bip,
- unsigned int len)
-{
- struct bio_vec *iv;
- unsigned int i;
-
- bip_for_each_vec(iv, bip, i) {
- if (len == 0) {
- bip->bip_vcnt = i;
- return;
- } else if (len >= iv->bv_len) {
- len -= iv->bv_len;
- } else { /* len < iv->bv_len) */
- iv->bv_len = len;
- len = 0;
- }
- }
-}
-
-/**
* bio_integrity_advance - Advance integrity vector
* @bio: bio whose integrity vector to update
* @bytes_done: number of data bytes that have been completed
@@ -595,13 +553,9 @@ void bio_integrity_advance(struct bio *bio, unsigned int bytes_done)
{
struct bio_integrity_payload *bip = bio->bi_integrity;
struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
- unsigned int nr_sectors;
+ unsigned bytes = bio_integrity_bytes(bi, bytes_done >> 9);
- BUG_ON(bip == NULL);
- BUG_ON(bi == NULL);
-
- nr_sectors = bio_integrity_hw_sectors(bi, bytes_done >> 9);
- bio_integrity_mark_head(bip, nr_sectors * bi->tuple_size);
+ bvec_iter_advance(bip->bip_vec, &bip->bip_iter, bytes);
}
EXPORT_SYMBOL(bio_integrity_advance);
@@ -621,64 +575,13 @@ void bio_integrity_trim(struct bio *bio, unsigned int offset,
{
struct bio_integrity_payload *bip = bio->bi_integrity;
struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
- unsigned int nr_sectors;
-
- BUG_ON(bip == NULL);
- BUG_ON(bi == NULL);
- BUG_ON(!bio_flagged(bio, BIO_CLONED));
- nr_sectors = bio_integrity_hw_sectors(bi, sectors);
- bip->bip_sector = bip->bip_sector + offset;
- bio_integrity_mark_head(bip, offset * bi->tuple_size);
- bio_integrity_mark_tail(bip, sectors * bi->tuple_size);
+ bio_integrity_advance(bio, offset << 9);
+ bip->bip_iter.bi_size = bio_integrity_bytes(bi, sectors);
}
EXPORT_SYMBOL(bio_integrity_trim);
/**
- * bio_integrity_split - Split integrity metadata
- * @bio: Protected bio
- * @bp: Resulting bio_pair
- * @sectors: Offset
- *
- * Description: Splits an integrity page into a bio_pair.
- */
-void bio_integrity_split(struct bio *bio, struct bio_pair *bp, int sectors)
-{
- struct blk_integrity *bi;
- struct bio_integrity_payload *bip = bio->bi_integrity;
- unsigned int nr_sectors;
-
- if (bio_integrity(bio) == 0)
- return;
-
- bi = bdev_get_integrity(bio->bi_bdev);
- BUG_ON(bi == NULL);
- BUG_ON(bip->bip_vcnt != 1);
-
- nr_sectors = bio_integrity_hw_sectors(bi, sectors);
-
- bp->bio1.bi_integrity = &bp->bip1;
- bp->bio2.bi_integrity = &bp->bip2;
-
- bp->iv1 = bip->bip_vec[bip->bip_idx];
- bp->iv2 = bip->bip_vec[bip->bip_idx];
-
- bp->bip1.bip_vec = &bp->iv1;
- bp->bip2.bip_vec = &bp->iv2;
-
- bp->iv1.bv_len = sectors * bi->tuple_size;
- bp->iv2.bv_offset += sectors * bi->tuple_size;
- bp->iv2.bv_len -= sectors * bi->tuple_size;
-
- bp->bip1.bip_sector = bio->bi_integrity->bip_sector;
- bp->bip2.bip_sector = bio->bi_integrity->bip_sector + nr_sectors;
-
- bp->bip1.bip_vcnt = bp->bip2.bip_vcnt = 1;
- bp->bip1.bip_idx = bp->bip2.bip_idx = 0;
-}
-EXPORT_SYMBOL(bio_integrity_split);
-
-/**
* bio_integrity_clone - Callback for cloning bios with integrity metadata
* @bio: New bio
* @bio_src: Original bio
@@ -702,9 +605,8 @@ int bio_integrity_clone(struct bio *bio, struct bio *bio_src,
memcpy(bip->bip_vec, bip_src->bip_vec,
bip_src->bip_vcnt * sizeof(struct bio_vec));
- bip->bip_sector = bip_src->bip_sector;
bip->bip_vcnt = bip_src->bip_vcnt;
- bip->bip_idx = bip_src->bip_idx;
+ bip->bip_iter = bip_src->bip_iter;
return 0;
}
diff --git a/fs/bio.c b/fs/bio.c
index 33d79a4..75c49a3 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -38,8 +38,6 @@
*/
#define BIO_INLINE_VECS 4
-static mempool_t *bio_split_pool __read_mostly;
-
/*
* if you change this list, also change bvec_alloc or things will
* break badly! cannot be bigger than what you can fit into an
@@ -273,6 +271,7 @@ void bio_init(struct bio *bio)
{
memset(bio, 0, sizeof(*bio));
bio->bi_flags = 1 << BIO_UPTODATE;
+ atomic_set(&bio->bi_remaining, 1);
atomic_set(&bio->bi_cnt, 1);
}
EXPORT_SYMBOL(bio_init);
@@ -295,9 +294,35 @@ void bio_reset(struct bio *bio)
memset(bio, 0, BIO_RESET_BYTES);
bio->bi_flags = flags|(1 << BIO_UPTODATE);
+ atomic_set(&bio->bi_remaining, 1);
}
EXPORT_SYMBOL(bio_reset);
+static void bio_chain_endio(struct bio *bio, int error)
+{
+ bio_endio(bio->bi_private, error);
+ bio_put(bio);
+}
+
+/**
+ * bio_chain - chain bio completions
+ *
+ * The caller won't have a bi_end_io called when @bio completes - instead,
+ * @parent's bi_end_io won't be called until both @parent and @bio have
+ * completed; the chained bio will also be freed when it completes.
+ *
+ * The caller must not set bi_private or bi_end_io in @bio.
+ */
+void bio_chain(struct bio *bio, struct bio *parent)
+{
+ BUG_ON(bio->bi_private || bio->bi_end_io);
+
+ bio->bi_private = parent;
+ bio->bi_end_io = bio_chain_endio;
+ atomic_inc(&parent->bi_remaining);
+}
+EXPORT_SYMBOL(bio_chain);
+
static void bio_alloc_rescue(struct work_struct *work)
{
struct bio_set *bs = container_of(work, struct bio_set, rescue_work);
@@ -473,13 +498,13 @@ EXPORT_SYMBOL(bio_alloc_bioset);
void zero_fill_bio(struct bio *bio)
{
unsigned long flags;
- struct bio_vec *bv;
- int i;
+ struct bio_vec bv;
+ struct bvec_iter iter;
- bio_for_each_segment(bv, bio, i) {
- char *data = bvec_kmap_irq(bv, &flags);
- memset(data, 0, bv->bv_len);
- flush_dcache_page(bv->bv_page);
+ bio_for_each_segment(bv, bio, iter) {
+ char *data = bvec_kmap_irq(&bv, &flags);
+ memset(data, 0, bv.bv_len);
+ flush_dcache_page(bv.bv_page);
bvec_kunmap_irq(data, &flags);
}
}
@@ -515,51 +540,49 @@ inline int bio_phys_segments(struct request_queue *q, struct bio *bio)
EXPORT_SYMBOL(bio_phys_segments);
/**
- * __bio_clone - clone a bio
+ * __bio_clone_fast - clone a bio that shares the original bio's biovec
* @bio: destination bio
* @bio_src: bio to clone
*
* Clone a &bio. Caller will own the returned bio, but not
* the actual data it points to. Reference count of returned
* bio will be one.
+ *
+ * Caller must ensure that @bio_src is not freed before @bio.
*/
-void __bio_clone(struct bio *bio, struct bio *bio_src)
+void __bio_clone_fast(struct bio *bio, struct bio *bio_src)
{
- memcpy(bio->bi_io_vec, bio_src->bi_io_vec,
- bio_src->bi_max_vecs * sizeof(struct bio_vec));
+ BUG_ON(bio->bi_pool && BIO_POOL_IDX(bio) != BIO_POOL_NONE);
/*
* most users will be overriding ->bi_bdev with a new target,
* so we don't set nor calculate new physical/hw segment counts here
*/
- bio->bi_sector = bio_src->bi_sector;
bio->bi_bdev = bio_src->bi_bdev;
bio->bi_flags |= 1 << BIO_CLONED;
bio->bi_rw = bio_src->bi_rw;
- bio->bi_vcnt = bio_src->bi_vcnt;
- bio->bi_size = bio_src->bi_size;
- bio->bi_idx = bio_src->bi_idx;
+ bio->bi_iter = bio_src->bi_iter;
+ bio->bi_io_vec = bio_src->bi_io_vec;
}
-EXPORT_SYMBOL(__bio_clone);
+EXPORT_SYMBOL(__bio_clone_fast);
/**
- * bio_clone_bioset - clone a bio
+ * bio_clone_fast - clone a bio that shares the original bio's biovec
* @bio: bio to clone
* @gfp_mask: allocation priority
* @bs: bio_set to allocate from
*
- * Like __bio_clone, only also allocates the returned bio
+ * Like __bio_clone_fast, only also allocates the returned bio
*/
-struct bio *bio_clone_bioset(struct bio *bio, gfp_t gfp_mask,
- struct bio_set *bs)
+struct bio *bio_clone_fast(struct bio *bio, gfp_t gfp_mask, struct bio_set *bs)
{
struct bio *b;
- b = bio_alloc_bioset(gfp_mask, bio->bi_max_vecs, bs);
+ b = bio_alloc_bioset(gfp_mask, 0, bs);
if (!b)
return NULL;
- __bio_clone(b, bio);
+ __bio_clone_fast(b, bio);
if (bio_integrity(bio)) {
int ret;
@@ -574,6 +597,74 @@ struct bio *bio_clone_bioset(struct bio *bio, gfp_t gfp_mask,
return b;
}
+EXPORT_SYMBOL(bio_clone_fast);
+
+/**
+ * bio_clone_bioset - clone a bio
+ * @bio_src: bio to clone
+ * @gfp_mask: allocation priority
+ * @bs: bio_set to allocate from
+ *
+ * Clone bio. Caller will own the returned bio, but not the actual data it
+ * points to. Reference count of returned bio will be one.
+ */
+struct bio *bio_clone_bioset(struct bio *bio_src, gfp_t gfp_mask,
+ struct bio_set *bs)
+{
+ unsigned nr_iovecs = 0;
+ struct bvec_iter iter;
+ struct bio_vec bv;
+ struct bio *bio;
+
+ /*
+ * Pre immutable biovecs, __bio_clone() used to just do a memcpy from
+ * bio_src->bi_io_vec to bio->bi_io_vec.
+ *
+ * We can't do that anymore, because:
+ *
+ * - The point of cloning the biovec is to produce a bio with a biovec
+ * the caller can modify: bi_idx and bi_bvec_done should be 0.
+ *
+ * - The original bio could've had more than BIO_MAX_PAGES biovecs; if
+ * we tried to clone the whole thing bio_alloc_bioset() would fail.
+ * But the clone should succeed as long as the number of biovecs we
+ * actually need to allocate is fewer than BIO_MAX_PAGES.
+ *
+ * - Lastly, bi_vcnt should not be looked at or relied upon by code
+ * that does not own the bio - reason being drivers don't use it for
+ * iterating over the biovec anymore, so expecting it to be kept up
+ * to date (i.e. for clones that share the parent biovec) is just
+ * asking for trouble and would force extra work on
+ * __bio_clone_fast() anyways.
+ */
+
+ bio_for_each_segment(bv, bio_src, iter)
+ nr_iovecs++;
+
+ bio = bio_alloc_bioset(gfp_mask, nr_iovecs, bs);
+ if (!bio)
+ return NULL;
+
+ bio->bi_bdev = bio_src->bi_bdev;
+ bio->bi_rw = bio_src->bi_rw;
+ bio->bi_iter.bi_sector = bio_src->bi_iter.bi_sector;
+ bio->bi_iter.bi_size = bio_src->bi_iter.bi_size;
+
+ bio_for_each_segment(bv, bio_src, iter)
+ bio->bi_io_vec[bio->bi_vcnt++] = bv;
+
+ if (bio_integrity(bio_src)) {
+ int ret;
+
+ ret = bio_integrity_clone(bio, bio_src, gfp_mask);
+ if (ret < 0) {
+ bio_put(bio);
+ return NULL;
+ }
+ }
+
+ return bio;
+}
EXPORT_SYMBOL(bio_clone_bioset);
/**
@@ -612,7 +703,7 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
if (unlikely(bio_flagged(bio, BIO_CLONED)))
return 0;
- if (((bio->bi_size + len) >> 9) > max_sectors)
+ if (((bio->bi_iter.bi_size + len) >> 9) > max_sectors)
return 0;
/*
@@ -635,8 +726,9 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
simulate merging updated prev_bvec
as new bvec. */
.bi_bdev = bio->bi_bdev,
- .bi_sector = bio->bi_sector,
- .bi_size = bio->bi_size - prev_bv_len,
+ .bi_sector = bio->bi_iter.bi_sector,
+ .bi_size = bio->bi_iter.bi_size -
+ prev_bv_len,
.bi_rw = bio->bi_rw,
};
@@ -684,8 +776,8 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
if (q->merge_bvec_fn) {
struct bvec_merge_data bvm = {
.bi_bdev = bio->bi_bdev,
- .bi_sector = bio->bi_sector,
- .bi_size = bio->bi_size,
+ .bi_sector = bio->bi_iter.bi_sector,
+ .bi_size = bio->bi_iter.bi_size,
.bi_rw = bio->bi_rw,
};
@@ -708,7 +800,7 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
bio->bi_vcnt++;
bio->bi_phys_segments++;
done:
- bio->bi_size += len;
+ bio->bi_iter.bi_size += len;
return len;
}
@@ -807,28 +899,7 @@ void bio_advance(struct bio *bio, unsigned bytes)
if (bio_integrity(bio))
bio_integrity_advance(bio, bytes);
- bio->bi_sector += bytes >> 9;
- bio->bi_size -= bytes;
-
- if (bio->bi_rw & BIO_NO_ADVANCE_ITER_MASK)
- return;
-
- while (bytes) {
- if (unlikely(bio->bi_idx >= bio->bi_vcnt)) {
- WARN_ONCE(1, "bio idx %d >= vcnt %d\n",
- bio->bi_idx, bio->bi_vcnt);
- break;
- }
-
- if (bytes >= bio_iovec(bio)->bv_len) {
- bytes -= bio_iovec(bio)->bv_len;
- bio->bi_idx++;
- } else {
- bio_iovec(bio)->bv_len -= bytes;
- bio_iovec(bio)->bv_offset += bytes;
- bytes = 0;
- }
- }
+ bio_advance_iter(bio, &bio->bi_iter, bytes);
}
EXPORT_SYMBOL(bio_advance);
@@ -874,117 +945,80 @@ EXPORT_SYMBOL(bio_alloc_pages);
*/
void bio_copy_data(struct bio *dst, struct bio *src)
{
- struct bio_vec *src_bv, *dst_bv;
- unsigned src_offset, dst_offset, bytes;
+ struct bvec_iter src_iter, dst_iter;
+ struct bio_vec src_bv, dst_bv;
void *src_p, *dst_p;
+ unsigned bytes;
- src_bv = bio_iovec(src);
- dst_bv = bio_iovec(dst);
-
- src_offset = src_bv->bv_offset;
- dst_offset = dst_bv->bv_offset;
+ src_iter = src->bi_iter;
+ dst_iter = dst->bi_iter;
while (1) {
- if (src_offset == src_bv->bv_offset + src_bv->bv_len) {
- src_bv++;
- if (src_bv == bio_iovec_idx(src, src->bi_vcnt)) {
- src = src->bi_next;
- if (!src)
- break;
-
- src_bv = bio_iovec(src);
- }
+ if (!src_iter.bi_size) {
+ src = src->bi_next;
+ if (!src)
+ break;
- src_offset = src_bv->bv_offset;
+ src_iter = src->bi_iter;
}
- if (dst_offset == dst_bv->bv_offset + dst_bv->bv_len) {
- dst_bv++;
- if (dst_bv == bio_iovec_idx(dst, dst->bi_vcnt)) {
- dst = dst->bi_next;
- if (!dst)
- break;
-
- dst_bv = bio_iovec(dst);
- }
+ if (!dst_iter.bi_size) {
+ dst = dst->bi_next;
+ if (!dst)
+ break;
- dst_offset = dst_bv->bv_offset;
+ dst_iter = dst->bi_iter;
}
- bytes = min(dst_bv->bv_offset + dst_bv->bv_len - dst_offset,
- src_bv->bv_offset + src_bv->bv_len - src_offset);
+ src_bv = bio_iter_iovec(src, src_iter);
+ dst_bv = bio_iter_iovec(dst, dst_iter);
+
+ bytes = min(src_bv.bv_len, dst_bv.bv_len);
- src_p = kmap_atomic(src_bv->bv_page);
- dst_p = kmap_atomic(dst_bv->bv_page);
+ src_p = kmap_atomic(src_bv.bv_page);
+ dst_p = kmap_atomic(dst_bv.bv_page);
- memcpy(dst_p + dst_offset,
- src_p + src_offset,
+ memcpy(dst_p + dst_bv.bv_offset,
+ src_p + src_bv.bv_offset,
bytes);
kunmap_atomic(dst_p);
kunmap_atomic(src_p);
- src_offset += bytes;
- dst_offset += bytes;
+ bio_advance_iter(src, &src_iter, bytes);
+ bio_advance_iter(dst, &dst_iter, bytes);
}
}
EXPORT_SYMBOL(bio_copy_data);
struct bio_map_data {
- struct bio_vec *iovecs;
- struct sg_iovec *sgvecs;
int nr_sgvecs;
int is_our_pages;
+ struct sg_iovec sgvecs[];
};
static void bio_set_map_data(struct bio_map_data *bmd, struct bio *bio,
struct sg_iovec *iov, int iov_count,
int is_our_pages)
{
- memcpy(bmd->iovecs, bio->bi_io_vec, sizeof(struct bio_vec) * bio->bi_vcnt);
memcpy(bmd->sgvecs, iov, sizeof(struct sg_iovec) * iov_count);
bmd->nr_sgvecs = iov_count;
bmd->is_our_pages = is_our_pages;
bio->bi_private = bmd;
}
-static void bio_free_map_data(struct bio_map_data *bmd)
-{
- kfree(bmd->iovecs);
- kfree(bmd->sgvecs);
- kfree(bmd);
-}
-
static struct bio_map_data *bio_alloc_map_data(int nr_segs,
unsigned int iov_count,
gfp_t gfp_mask)
{
- struct bio_map_data *bmd;
-
if (iov_count > UIO_MAXIOV)
return NULL;
- bmd = kmalloc(sizeof(*bmd), gfp_mask);
- if (!bmd)
- return NULL;
-
- bmd->iovecs = kmalloc(sizeof(struct bio_vec) * nr_segs, gfp_mask);
- if (!bmd->iovecs) {
- kfree(bmd);
- return NULL;
- }
-
- bmd->sgvecs = kmalloc(sizeof(struct sg_iovec) * iov_count, gfp_mask);
- if (bmd->sgvecs)
- return bmd;
-
- kfree(bmd->iovecs);
- kfree(bmd);
- return NULL;
+ return kmalloc(sizeof(struct bio_map_data) +
+ sizeof(struct sg_iovec) * iov_count, gfp_mask);
}
-static int __bio_copy_iov(struct bio *bio, struct bio_vec *iovecs,
- struct sg_iovec *iov, int iov_count,
+static int __bio_copy_iov(struct bio *bio, struct sg_iovec *iov, int iov_count,
int to_user, int from_user, int do_free_page)
{
int ret = 0, i;
@@ -994,7 +1028,7 @@ static int __bio_copy_iov(struct bio *bio, struct bio_vec *iovecs,
bio_for_each_segment_all(bvec, bio, i) {
char *bv_addr = page_address(bvec->bv_page);
- unsigned int bv_len = iovecs[i].bv_len;
+ unsigned int bv_len = bvec->bv_len;
while (bv_len && iov_idx < iov_count) {
unsigned int bytes;
@@ -1054,14 +1088,14 @@ int bio_uncopy_user(struct bio *bio)
* don't copy into a random user address space, just free.
*/
if (current->mm)
- ret = __bio_copy_iov(bio, bmd->iovecs, bmd->sgvecs,
- bmd->nr_sgvecs, bio_data_dir(bio) == READ,
+ ret = __bio_copy_iov(bio, bmd->sgvecs, bmd->nr_sgvecs,
+ bio_data_dir(bio) == READ,
0, bmd->is_our_pages);
else if (bmd->is_our_pages)
bio_for_each_segment_all(bvec, bio, i)
__free_page(bvec->bv_page);
}
- bio_free_map_data(bmd);
+ kfree(bmd);
bio_put(bio);
return ret;
}
@@ -1175,7 +1209,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
*/
if ((!write_to_vm && (!map_data || !map_data->null_mapped)) ||
(map_data && map_data->from_user)) {
- ret = __bio_copy_iov(bio, bio->bi_io_vec, iov, iov_count, 0, 1, 0);
+ ret = __bio_copy_iov(bio, iov, iov_count, 0, 1, 0);
if (ret)
goto cleanup;
}
@@ -1189,7 +1223,7 @@ cleanup:
bio_put(bio);
out_bmd:
- bio_free_map_data(bmd);
+ kfree(bmd);
return ERR_PTR(ret);
}
@@ -1485,7 +1519,7 @@ struct bio *bio_map_kern(struct request_queue *q, void *data, unsigned int len,
if (IS_ERR(bio))
return bio;
- if (bio->bi_size == len)
+ if (bio->bi_iter.bi_size == len)
return bio;
/*
@@ -1506,16 +1540,15 @@ static void bio_copy_kern_endio(struct bio *bio, int err)
bio_for_each_segment_all(bvec, bio, i) {
char *addr = page_address(bvec->bv_page);
- int len = bmd->iovecs[i].bv_len;
if (read)
- memcpy(p, addr, len);
+ memcpy(p, addr, bvec->bv_len);
__free_page(bvec->bv_page);
- p += len;
+ p += bvec->bv_len;
}
- bio_free_map_data(bmd);
+ kfree(bmd);
bio_put(bio);
}
@@ -1686,11 +1719,11 @@ void bio_check_pages_dirty(struct bio *bio)
#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
void bio_flush_dcache_pages(struct bio *bi)
{
- int i;
- struct bio_vec *bvec;
+ struct bio_vec bvec;
+ struct bvec_iter iter;
- bio_for_each_segment(bvec, bi, i)
- flush_dcache_page(bvec->bv_page);
+ bio_for_each_segment(bvec, bi, iter)
+ flush_dcache_page(bvec.bv_page);
}
EXPORT_SYMBOL(bio_flush_dcache_pages);
#endif
@@ -1711,96 +1744,86 @@ EXPORT_SYMBOL(bio_flush_dcache_pages);
**/
void bio_endio(struct bio *bio, int error)
{
- if (error)
- clear_bit(BIO_UPTODATE, &bio->bi_flags);
- else if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
- error = -EIO;
+ while (bio) {
+ BUG_ON(atomic_read(&bio->bi_remaining) <= 0);
- if (bio->bi_end_io)
- bio->bi_end_io(bio, error);
-}
-EXPORT_SYMBOL(bio_endio);
+ if (error)
+ clear_bit(BIO_UPTODATE, &bio->bi_flags);
+ else if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
+ error = -EIO;
-void bio_pair_release(struct bio_pair *bp)
-{
- if (atomic_dec_and_test(&bp->cnt)) {
- struct bio *master = bp->bio1.bi_private;
+ if (!atomic_dec_and_test(&bio->bi_remaining))
+ return;
- bio_endio(master, bp->error);
- mempool_free(bp, bp->bio2.bi_private);
+ /*
+ * Need to have a real endio function for chained bios,
+ * otherwise various corner cases will break (like stacking
+ * block devices that save/restore bi_end_io) - however, we want
+ * to avoid unbounded recursion and blowing the stack. Tail call
+ * optimization would handle this, but compiling with frame
+ * pointers also disables gcc's sibling call optimization.
+ */
+ if (bio->bi_end_io == bio_chain_endio) {
+ struct bio *parent = bio->bi_private;
+ bio_put(bio);
+ bio = parent;
+ } else {
+ if (bio->bi_end_io)
+ bio->bi_end_io(bio, error);
+ bio = NULL;
+ }
}
}
-EXPORT_SYMBOL(bio_pair_release);
+EXPORT_SYMBOL(bio_endio);
-static void bio_pair_end_1(struct bio *bi, int err)
+/**
+ * bio_endio_nodec - end I/O on a bio, without decrementing bi_remaining
+ * @bio: bio
+ * @error: error, if any
+ *
+ * For code that has saved and restored bi_end_io; thing hard before using this
+ * function, probably you should've cloned the entire bio.
+ **/
+void bio_endio_nodec(struct bio *bio, int error)
{
- struct bio_pair *bp = container_of(bi, struct bio_pair, bio1);
-
- if (err)
- bp->error = err;
-
- bio_pair_release(bp);
+ atomic_inc(&bio->bi_remaining);
+ bio_endio(bio, error);
}
+EXPORT_SYMBOL(bio_endio_nodec);
-static void bio_pair_end_2(struct bio *bi, int err)
-{
- struct bio_pair *bp = container_of(bi, struct bio_pair, bio2);
-
- if (err)
- bp->error = err;
-
- bio_pair_release(bp);
-}
-
-/*
- * split a bio - only worry about a bio with a single page in its iovec
+/**
+ * bio_split - split a bio
+ * @bio: bio to split
+ * @sectors: number of sectors to split from the front of @bio
+ * @gfp: gfp mask
+ * @bs: bio set to allocate from
+ *
+ * Allocates and returns a new bio which represents @sectors from the start of
+ * @bio, and updates @bio to represent the remaining sectors.
+ *
+ * The newly allocated bio will point to @bio's bi_io_vec; it is the caller's
+ * responsibility to ensure that @bio is not freed before the split.
*/
-struct bio_pair *bio_split(struct bio *bi, int first_sectors)
+struct bio *bio_split(struct bio *bio, int sectors,
+ gfp_t gfp, struct bio_set *bs)
{
- struct bio_pair *bp = mempool_alloc(bio_split_pool, GFP_NOIO);
-
- if (!bp)
- return bp;
-
- trace_block_split(bdev_get_queue(bi->bi_bdev), bi,
- bi->bi_sector + first_sectors);
-
- BUG_ON(bio_segments(bi) > 1);
- atomic_set(&bp->cnt, 3);
- bp->error = 0;
- bp->bio1 = *bi;
- bp->bio2 = *bi;
- bp->bio2.bi_sector += first_sectors;
- bp->bio2.bi_size -= first_sectors << 9;
- bp->bio1.bi_size = first_sectors << 9;
-
- if (bi->bi_vcnt != 0) {
- bp->bv1 = *bio_iovec(bi);
- bp->bv2 = *bio_iovec(bi);
-
- if (bio_is_rw(bi)) {
- bp->bv2.bv_offset += first_sectors << 9;
- bp->bv2.bv_len -= first_sectors << 9;
- bp->bv1.bv_len = first_sectors << 9;
- }
+ struct bio *split = NULL;
- bp->bio1.bi_io_vec = &bp->bv1;
- bp->bio2.bi_io_vec = &bp->bv2;
+ BUG_ON(sectors <= 0);
+ BUG_ON(sectors >= bio_sectors(bio));
- bp->bio1.bi_max_vecs = 1;
- bp->bio2.bi_max_vecs = 1;
- }
+ split = bio_clone_fast(bio, gfp, bs);
+ if (!split)
+ return NULL;
- bp->bio1.bi_end_io = bio_pair_end_1;
- bp->bio2.bi_end_io = bio_pair_end_2;
+ split->bi_iter.bi_size = sectors << 9;
- bp->bio1.bi_private = bi;
- bp->bio2.bi_private = bio_split_pool;
+ if (bio_integrity(split))
+ bio_integrity_trim(split, 0, sectors);
- if (bio_integrity(bi))
- bio_integrity_split(bi, bp, first_sectors);
+ bio_advance(bio, split->bi_iter.bi_size);
- return bp;
+ return split;
}
EXPORT_SYMBOL(bio_split);
@@ -1814,80 +1837,20 @@ void bio_trim(struct bio *bio, int offset, int size)
{
/* 'bio' is a cloned bio which we need to trim to match
* the given offset and size.
- * This requires adjusting bi_sector, bi_size, and bi_io_vec
*/
- int i;
- struct bio_vec *bvec;
- int sofar = 0;
size <<= 9;
- if (offset == 0 && size == bio->bi_size)
+ if (offset == 0 && size == bio->bi_iter.bi_size)
return;
clear_bit(BIO_SEG_VALID, &bio->bi_flags);
bio_advance(bio, offset << 9);
- bio->bi_size = size;
-
- /* avoid any complications with bi_idx being non-zero*/
- if (bio->bi_idx) {
- memmove(bio->bi_io_vec, bio->bi_io_vec+bio->bi_idx,
- (bio->bi_vcnt - bio->bi_idx) * sizeof(struct bio_vec));
- bio->bi_vcnt -= bio->bi_idx;
- bio->bi_idx = 0;
- }
- /* Make sure vcnt and last bv are not too big */
- bio_for_each_segment(bvec, bio, i) {
- if (sofar + bvec->bv_len > size)
- bvec->bv_len = size - sofar;
- if (bvec->bv_len == 0) {
- bio->bi_vcnt = i;
- break;
- }
- sofar += bvec->bv_len;
- }
+ bio->bi_iter.bi_size = size;
}
EXPORT_SYMBOL_GPL(bio_trim);
-/**
- * bio_sector_offset - Find hardware sector offset in bio
- * @bio: bio to inspect
- * @index: bio_vec index
- * @offset: offset in bv_page
- *
- * Return the number of hardware sectors between beginning of bio
- * and an end point indicated by a bio_vec index and an offset
- * within that vector's page.
- */
-sector_t bio_sector_offset(struct bio *bio, unsigned short index,
- unsigned int offset)
-{
- unsigned int sector_sz;
- struct bio_vec *bv;
- sector_t sectors;
- int i;
-
- sector_sz = queue_logical_block_size(bio->bi_bdev->bd_disk->queue);
- sectors = 0;
-
- if (index >= bio->bi_idx)
- index = bio->bi_vcnt - 1;
-
- bio_for_each_segment_all(bv, bio, i) {
- if (i == index) {
- if (offset > bv->bv_offset)
- sectors += (offset - bv->bv_offset) / sector_sz;
- break;
- }
-
- sectors += bv->bv_len / sector_sz;
- }
-
- return sectors;
-}
-EXPORT_SYMBOL(bio_sector_offset);
-
/*
* create memory pools for biovec's in a bio_set.
* use the global biovec slabs created for general use.
@@ -2065,11 +2028,6 @@ static int __init init_bio(void)
if (bioset_integrity_create(fs_bio_set, BIO_POOL_SIZE))
panic("bio: can't create integrity pool\n");
- bio_split_pool = mempool_create_kmalloc_pool(BIO_SPLIT_ENTRIES,
- sizeof(struct bio_pair));
- if (!bio_split_pool)
- panic("bio: can't create split pool\n");
-
return 0;
}
subsys_initcall(init_bio);
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 131d828..cb05e1c 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -1695,7 +1695,7 @@ static int btrfsic_read_block(struct btrfsic_state *state,
return -1;
}
bio->bi_bdev = block_ctx->dev->bdev;
- bio->bi_sector = dev_bytenr >> 9;
+ bio->bi_iter.bi_sector = dev_bytenr >> 9;
for (j = i; j < num_pages; j++) {
ret = bio_add_page(bio, block_ctx->pagev[j],
@@ -3013,7 +3013,7 @@ static void __btrfsic_submit_bio(int rw, struct bio *bio)
int bio_is_patched;
char **mapped_datav;
- dev_bytenr = 512 * bio->bi_sector;
+ dev_bytenr = 512 * bio->bi_iter.bi_sector;
bio_is_patched = 0;
if (dev_state->state->print_mask &
BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
@@ -3021,8 +3021,8 @@ static void __btrfsic_submit_bio(int rw, struct bio *bio)
"submit_bio(rw=0x%x, bi_vcnt=%u,"
" bi_sector=%llu (bytenr %llu), bi_bdev=%p)\n",
rw, bio->bi_vcnt,
- (unsigned long long)bio->bi_sector, dev_bytenr,
- bio->bi_bdev);
+ (unsigned long long)bio->bi_iter.bi_sector,
+ dev_bytenr, bio->bi_bdev);
mapped_datav = kmalloc(sizeof(*mapped_datav) * bio->bi_vcnt,
GFP_NOFS);
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 1499b27..f5cdeb4 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -172,7 +172,8 @@ static void end_compressed_bio_read(struct bio *bio, int err)
goto out;
inode = cb->inode;
- ret = check_compressed_csum(inode, cb, (u64)bio->bi_sector << 9);
+ ret = check_compressed_csum(inode, cb,
+ (u64)bio->bi_iter.bi_sector << 9);
if (ret)
goto csum_failed;
@@ -201,18 +202,16 @@ csum_failed:
if (cb->errors) {
bio_io_error(cb->orig_bio);
} else {
- int bio_index = 0;
- struct bio_vec *bvec = cb->orig_bio->bi_io_vec;
+ int i;
+ struct bio_vec *bvec;
/*
* we have verified the checksum already, set page
* checked so the end_io handlers know about it
*/
- while (bio_index < cb->orig_bio->bi_vcnt) {
+ bio_for_each_segment_all(bvec, cb->orig_bio, i)
SetPageChecked(bvec->bv_page);
- bvec++;
- bio_index++;
- }
+
bio_endio(cb->orig_bio, 0);
}
@@ -372,7 +371,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
for (pg_index = 0; pg_index < cb->nr_pages; pg_index++) {
page = compressed_pages[pg_index];
page->mapping = inode->i_mapping;
- if (bio->bi_size)
+ if (bio->bi_iter.bi_size)
ret = io_tree->ops->merge_bio_hook(WRITE, page, 0,
PAGE_CACHE_SIZE,
bio, 0);
@@ -506,7 +505,7 @@ static noinline int add_ra_bio_pages(struct inode *inode,
if (!em || last_offset < em->start ||
(last_offset + PAGE_CACHE_SIZE > extent_map_end(em)) ||
- (em->block_start >> 9) != cb->orig_bio->bi_sector) {
+ (em->block_start >> 9) != cb->orig_bio->bi_iter.bi_sector) {
free_extent_map(em);
unlock_extent(tree, last_offset, end);
unlock_page(page);
@@ -552,7 +551,7 @@ next:
* in it. We don't actually do IO on those pages but allocate new ones
* to hold the compressed pages on disk.
*
- * bio->bi_sector points to the compressed extent on disk
+ * bio->bi_iter.bi_sector points to the compressed extent on disk
* bio->bi_io_vec points to all of the inode pages
* bio->bi_vcnt is a count of pages
*
@@ -573,7 +572,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
struct page *page;
struct block_device *bdev;
struct bio *comp_bio;
- u64 cur_disk_byte = (u64)bio->bi_sector << 9;
+ u64 cur_disk_byte = (u64)bio->bi_iter.bi_sector << 9;
u64 em_len;
u64 em_start;
struct extent_map *em;
@@ -659,7 +658,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
page->mapping = inode->i_mapping;
page->index = em_start >> PAGE_CACHE_SHIFT;
- if (comp_bio->bi_size)
+ if (comp_bio->bi_iter.bi_size)
ret = tree->ops->merge_bio_hook(READ, page, 0,
PAGE_CACHE_SIZE,
comp_bio, 0);
@@ -687,8 +686,8 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
comp_bio, sums);
BUG_ON(ret); /* -ENOMEM */
}
- sums += (comp_bio->bi_size + root->sectorsize - 1) /
- root->sectorsize;
+ sums += (comp_bio->bi_iter.bi_size +
+ root->sectorsize - 1) / root->sectorsize;
ret = btrfs_map_bio(root, READ, comp_bio,
mirror_num, 0);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 8072cfa..e71039e 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -842,20 +842,17 @@ int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
static int btree_csum_one_bio(struct bio *bio)
{
- struct bio_vec *bvec = bio->bi_io_vec;
- int bio_index = 0;
+ struct bio_vec *bvec;
struct btrfs_root *root;
- int ret = 0;
+ int i, ret = 0;
- WARN_ON(bio->bi_vcnt <= 0);
- while (bio_index < bio->bi_vcnt) {
+ bio_for_each_segment_all(bvec, bio, i) {
root = BTRFS_I(bvec->bv_page->mapping->host)->root;
ret = csum_dirty_buffer(root, bvec->bv_page);
if (ret)
break;
- bio_index++;
- bvec++;
}
+
return ret;
}
@@ -1695,7 +1692,7 @@ static void end_workqueue_fn(struct btrfs_work *work)
bio->bi_private = end_io_wq->private;
bio->bi_end_io = end_io_wq->end_io;
kfree(end_io_wq);
- bio_endio(bio, error);
+ bio_endio_nodec(bio, error);
}
static int cleaner_kthread(void *arg)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index ff43802..bcb6f1b 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1984,7 +1984,7 @@ int repair_io_failure(struct btrfs_fs_info *fs_info, u64 start,
bio = btrfs_io_bio_alloc(GFP_NOFS, 1);
if (!bio)
return -EIO;
- bio->bi_size = 0;
+ bio->bi_iter.bi_size = 0;
map_length = length;
ret = btrfs_map_block(fs_info, WRITE, logical,
@@ -1995,7 +1995,7 @@ int repair_io_failure(struct btrfs_fs_info *fs_info, u64 start,
}
BUG_ON(mirror_num != bbio->mirror_num);
sector = bbio->stripes[mirror_num-1].physical >> 9;
- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
dev = bbio->stripes[mirror_num-1].dev;
kfree(bbio);
if (!dev || !dev->bdev || !dev->writeable) {
@@ -2268,9 +2268,9 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
return -EIO;
}
bio->bi_end_io = failed_bio->bi_end_io;
- bio->bi_sector = failrec->logical >> 9;
+ bio->bi_iter.bi_sector = failrec->logical >> 9;
bio->bi_bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
- bio->bi_size = 0;
+ bio->bi_iter.bi_size = 0;
btrfs_failed_bio = btrfs_io_bio(failed_bio);
if (btrfs_failed_bio->csum) {
@@ -2332,12 +2332,13 @@ int end_extent_writepage(struct page *page, int err, u64 start, u64 end)
*/
static void end_bio_extent_writepage(struct bio *bio, int err)
{
- struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
+ struct bio_vec *bvec;
struct extent_io_tree *tree;
u64 start;
u64 end;
+ int i;
- do {
+ bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
tree = &BTRFS_I(page->mapping->host)->io_tree;
@@ -2355,14 +2356,11 @@ static void end_bio_extent_writepage(struct bio *bio, int err)
start = page_offset(page);
end = start + bvec->bv_offset + bvec->bv_len - 1;
- if (--bvec >= bio->bi_io_vec)
- prefetchw(&bvec->bv_page->flags);
-
if (end_extent_writepage(page, err, start, end))
continue;
end_page_writeback(page);
- } while (bvec >= bio->bi_io_vec);
+ }
bio_put(bio);
}
@@ -2392,9 +2390,8 @@ endio_readpage_release_extent(struct extent_io_tree *tree, u64 start, u64 len,
*/
static void end_bio_extent_readpage(struct bio *bio, int err)
{
+ struct bio_vec *bvec;
int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
- struct bio_vec *bvec_end = bio->bi_io_vec + bio->bi_vcnt - 1;
- struct bio_vec *bvec = bio->bi_io_vec;
struct btrfs_io_bio *io_bio = btrfs_io_bio(bio);
struct extent_io_tree *tree;
u64 offset = 0;
@@ -2405,16 +2402,17 @@ static void end_bio_extent_readpage(struct bio *bio, int err)
u64 extent_len = 0;
int mirror;
int ret;
+ int i;
if (err)
uptodate = 0;
- do {
+ bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
struct inode *inode = page->mapping->host;
pr_debug("end_bio_extent_readpage: bi_sector=%llu, err=%d, "
- "mirror=%lu\n", (u64)bio->bi_sector, err,
+ "mirror=%lu\n", (u64)bio->bi_iter.bi_sector, err,
io_bio->mirror_num);
tree = &BTRFS_I(inode)->io_tree;
@@ -2433,9 +2431,6 @@ static void end_bio_extent_readpage(struct bio *bio, int err)
end = start + bvec->bv_offset + bvec->bv_len - 1;
len = bvec->bv_len;
- if (++bvec <= bvec_end)
- prefetchw(&bvec->bv_page->flags);
-
mirror = io_bio->mirror_num;
if (likely(uptodate && tree->ops &&
tree->ops->readpage_end_io_hook)) {
@@ -2516,7 +2511,7 @@ readpage_ok:
extent_start = start;
extent_len = end + 1 - start;
}
- } while (bvec <= bvec_end);
+ }
if (extent_len)
endio_readpage_release_extent(tree, extent_start, extent_len,
@@ -2547,9 +2542,8 @@ btrfs_bio_alloc(struct block_device *bdev, u64 first_sector, int nr_vecs,
}
if (bio) {
- bio->bi_size = 0;
bio->bi_bdev = bdev;
- bio->bi_sector = first_sector;
+ bio->bi_iter.bi_sector = first_sector;
btrfs_bio = btrfs_io_bio(bio);
btrfs_bio->csum = NULL;
btrfs_bio->csum_allocated = NULL;
@@ -2643,7 +2637,7 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree,
if (bio_ret && *bio_ret) {
bio = *bio_ret;
if (old_compressed)
- contig = bio->bi_sector == sector;
+ contig = bio->bi_iter.bi_sector == sector;
else
contig = bio_end_sector(bio) == sector;
@@ -3410,20 +3404,18 @@ static void end_extent_buffer_writeback(struct extent_buffer *eb)
static void end_bio_extent_buffer_writepage(struct bio *bio, int err)
{
- int uptodate = err == 0;
- struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
+ struct bio_vec *bvec;
struct extent_buffer *eb;
- int done;
+ int i, done;
- do {
+ bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
- bvec--;
eb = (struct extent_buffer *)page->private;
BUG_ON(!eb);
done = atomic_dec_and_test(&eb->io_pages);
- if (!uptodate || test_bit(EXTENT_BUFFER_IOERR, &eb->bflags)) {
+ if (err || test_bit(EXTENT_BUFFER_IOERR, &eb->bflags)) {
set_bit(EXTENT_BUFFER_IOERR, &eb->bflags);
ClearPageUptodate(page);
SetPageError(page);
@@ -3435,10 +3427,9 @@ static void end_bio_extent_buffer_writepage(struct bio *bio, int err)
continue;
end_extent_buffer_writeback(eb);
- } while (bvec >= bio->bi_io_vec);
+ }
bio_put(bio);
-
}
static int write_one_eb(struct extent_buffer *eb,
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 6f38488..84a46a4 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -182,7 +182,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
if (!path)
return -ENOMEM;
- nblocks = bio->bi_size >> inode->i_sb->s_blocksize_bits;
+ nblocks = bio->bi_iter.bi_size >> inode->i_sb->s_blocksize_bits;
if (!dst) {
if (nblocks * csum_size > BTRFS_BIO_INLINE_CSUM_SIZE) {
btrfs_bio->csum_allocated = kmalloc(nblocks * csum_size,
@@ -201,7 +201,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
csum = (u8 *)dst;
}
- if (bio->bi_size > PAGE_CACHE_SIZE * 8)
+ if (bio->bi_iter.bi_size > PAGE_CACHE_SIZE * 8)
path->reada = 2;
WARN_ON(bio->bi_vcnt <= 0);
@@ -217,7 +217,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
path->skip_locking = 1;
}
- disk_bytenr = (u64)bio->bi_sector << 9;
+ disk_bytenr = (u64)bio->bi_iter.bi_sector << 9;
if (dio)
offset = logical_offset;
while (bio_index < bio->bi_vcnt) {
@@ -302,7 +302,7 @@ int btrfs_lookup_bio_sums_dio(struct btrfs_root *root, struct inode *inode,
struct btrfs_dio_private *dip, struct bio *bio,
u64 offset)
{
- int len = (bio->bi_sector << 9) - dip->disk_bytenr;
+ int len = (bio->bi_iter.bi_sector << 9) - dip->disk_bytenr;
u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
int ret;
@@ -447,11 +447,12 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
u64 offset;
WARN_ON(bio->bi_vcnt <= 0);
- sums = kzalloc(btrfs_ordered_sum_size(root, bio->bi_size), GFP_NOFS);
+ sums = kzalloc(btrfs_ordered_sum_size(root, bio->bi_iter.bi_size),
+ GFP_NOFS);
if (!sums)
return -ENOMEM;
- sums->len = bio->bi_size;
+ sums->len = bio->bi_iter.bi_size;
INIT_LIST_HEAD(&sums->list);
if (contig)
@@ -461,7 +462,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
ordered = btrfs_lookup_ordered_extent(inode, offset);
BUG_ON(!ordered); /* Logic error */
- sums->bytenr = (u64)bio->bi_sector << 9;
+ sums->bytenr = (u64)bio->bi_iter.bi_sector << 9;
index = 0;
while (bio_index < bio->bi_vcnt) {
@@ -476,7 +477,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
btrfs_add_ordered_sum(inode, ordered, sums);
btrfs_put_ordered_extent(ordered);
- bytes_left = bio->bi_size - total_bytes;
+ bytes_left = bio->bi_iter.bi_size - total_bytes;
sums = kzalloc(btrfs_ordered_sum_size(root, bytes_left),
GFP_NOFS);
@@ -484,7 +485,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
sums->len = bytes_left;
ordered = btrfs_lookup_ordered_extent(inode, offset);
BUG_ON(!ordered); /* Logic error */
- sums->bytenr = ((u64)bio->bi_sector << 9) +
+ sums->bytenr = ((u64)bio->bi_iter.bi_sector << 9) +
total_bytes;
index = 0;
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 514b291..d546d8c 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1577,7 +1577,7 @@ int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset,
unsigned long bio_flags)
{
struct btrfs_root *root = BTRFS_I(page->mapping->host)->root;
- u64 logical = (u64)bio->bi_sector << 9;
+ u64 logical = (u64)bio->bi_iter.bi_sector << 9;
u64 length = 0;
u64 map_length;
int ret;
@@ -1585,7 +1585,7 @@ int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset,
if (bio_flags & EXTENT_BIO_COMPRESSED)
return 0;
- length = bio->bi_size;
+ length = bio->bi_iter.bi_size;
map_length = length;
ret = btrfs_map_block(root->fs_info, rw, logical,
&map_length, NULL, 0);
@@ -6783,17 +6783,16 @@ unlock_err:
static void btrfs_endio_direct_read(struct bio *bio, int err)
{
struct btrfs_dio_private *dip = bio->bi_private;
- struct bio_vec *bvec_end = bio->bi_io_vec + bio->bi_vcnt - 1;
- struct bio_vec *bvec = bio->bi_io_vec;
+ struct bio_vec *bvec;
struct inode *inode = dip->inode;
struct btrfs_root *root = BTRFS_I(inode)->root;
struct bio *dio_bio;
u32 *csums = (u32 *)dip->csum;
- int index = 0;
u64 start;
+ int i;
start = dip->logical_offset;
- do {
+ bio_for_each_segment_all(bvec, bio, i) {
if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) {
struct page *page = bvec->bv_page;
char *kaddr;
@@ -6809,18 +6808,16 @@ static void btrfs_endio_direct_read(struct bio *bio, int err)
local_irq_restore(flags);
flush_dcache_page(bvec->bv_page);
- if (csum != csums[index]) {
+ if (csum != csums[i]) {
btrfs_err(root->fs_info, "csum failed ino %llu off %llu csum %u expected csum %u",
btrfs_ino(inode), start, csum,
- csums[index]);
+ csums[i]);
err = -EIO;
}
}
start += bvec->bv_len;
- bvec++;
- index++;
- } while (bvec <= bvec_end);
+ }
unlock_extent(&BTRFS_I(inode)->io_tree, dip->logical_offset,
dip->logical_offset + dip->bytes - 1);
@@ -6901,7 +6898,8 @@ static void btrfs_end_dio_bio(struct bio *bio, int err)
printk(KERN_ERR "btrfs direct IO failed ino %llu rw %lu "
"sector %#Lx len %u err no %d\n",
btrfs_ino(dip->inode), bio->bi_rw,
- (unsigned long long)bio->bi_sector, bio->bi_size, err);
+ (unsigned long long)bio->bi_iter.bi_sector,
+ bio->bi_iter.bi_size, err);
dip->errors = 1;
/*
@@ -6992,7 +6990,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
struct bio *bio;
struct bio *orig_bio = dip->orig_bio;
struct bio_vec *bvec = orig_bio->bi_io_vec;
- u64 start_sector = orig_bio->bi_sector;
+ u64 start_sector = orig_bio->bi_iter.bi_sector;
u64 file_offset = dip->logical_offset;
u64 submit_len = 0;
u64 map_length;
@@ -7000,7 +6998,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
int ret = 0;
int async_submit = 0;
- map_length = orig_bio->bi_size;
+ map_length = orig_bio->bi_iter.bi_size;
ret = btrfs_map_block(root->fs_info, rw, start_sector << 9,
&map_length, NULL, 0);
if (ret) {
@@ -7008,7 +7006,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
return -EIO;
}
- if (map_length >= orig_bio->bi_size) {
+ if (map_length >= orig_bio->bi_iter.bi_size) {
bio = orig_bio;
goto submit;
}
@@ -7060,7 +7058,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
bio->bi_private = dip;
bio->bi_end_io = btrfs_end_dio_bio;
- map_length = orig_bio->bi_size;
+ map_length = orig_bio->bi_iter.bi_size;
ret = btrfs_map_block(root->fs_info, rw,
start_sector << 9,
&map_length, NULL, 0);
@@ -7118,7 +7116,8 @@ static void btrfs_submit_direct(int rw, struct bio *dio_bio,
if (!skip_sum && !write) {
csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
- sum_len = dio_bio->bi_size >> inode->i_sb->s_blocksize_bits;
+ sum_len = dio_bio->bi_iter.bi_size >>
+ inode->i_sb->s_blocksize_bits;
sum_len *= csum_size;
} else {
sum_len = 0;
@@ -7133,8 +7132,8 @@ static void btrfs_submit_direct(int rw, struct bio *dio_bio,
dip->private = dio_bio->bi_private;
dip->inode = inode;
dip->logical_offset = file_offset;
- dip->bytes = dio_bio->bi_size;
- dip->disk_bytenr = (u64)dio_bio->bi_sector << 9;
+ dip->bytes = dio_bio->bi_iter.bi_size;
+ dip->disk_bytenr = (u64)dio_bio->bi_iter.bi_sector << 9;
io_bio->bi_private = dip;
dip->errors = 0;
dip->orig_bio = io_bio;
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 24ac218..9af0b25 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -1032,8 +1032,8 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio,
/* see if we can add this page onto our existing bio */
if (last) {
- last_end = (u64)last->bi_sector << 9;
- last_end += last->bi_size;
+ last_end = (u64)last->bi_iter.bi_sector << 9;
+ last_end += last->bi_iter.bi_size;
/*
* we can't merge these if they are from different
@@ -1053,9 +1053,9 @@ static int rbio_add_io_page(struct btrfs_raid_bio *rbio,
if (!bio)
return -ENOMEM;
- bio->bi_size = 0;
+ bio->bi_iter.bi_size = 0;
bio->bi_bdev = stripe->dev->bdev;
- bio->bi_sector = disk_start >> 9;
+ bio->bi_iter.bi_sector = disk_start >> 9;
set_bit(BIO_UPTODATE, &bio->bi_flags);
bio_add_page(bio, page, PAGE_CACHE_SIZE, 0);
@@ -1111,7 +1111,7 @@ static void index_rbio_pages(struct btrfs_raid_bio *rbio)
spin_lock_irq(&rbio->bio_list_lock);
bio_list_for_each(bio, &rbio->bio_list) {
- start = (u64)bio->bi_sector << 9;
+ start = (u64)bio->bi_iter.bi_sector << 9;
stripe_offset = start - rbio->raid_map[0];
page_index = stripe_offset >> PAGE_CACHE_SHIFT;
@@ -1272,7 +1272,7 @@ cleanup:
static int find_bio_stripe(struct btrfs_raid_bio *rbio,
struct bio *bio)
{
- u64 physical = bio->bi_sector;
+ u64 physical = bio->bi_iter.bi_sector;
u64 stripe_start;
int i;
struct btrfs_bio_stripe *stripe;
@@ -1298,7 +1298,7 @@ static int find_bio_stripe(struct btrfs_raid_bio *rbio,
static int find_logical_bio_stripe(struct btrfs_raid_bio *rbio,
struct bio *bio)
{
- u64 logical = bio->bi_sector;
+ u64 logical = bio->bi_iter.bi_sector;
u64 stripe_start;
int i;
@@ -1602,8 +1602,8 @@ static int plug_cmp(void *priv, struct list_head *a, struct list_head *b)
plug_list);
struct btrfs_raid_bio *rb = container_of(b, struct btrfs_raid_bio,
plug_list);
- u64 a_sector = ra->bio_list.head->bi_sector;
- u64 b_sector = rb->bio_list.head->bi_sector;
+ u64 a_sector = ra->bio_list.head->bi_iter.bi_sector;
+ u64 b_sector = rb->bio_list.head->bi_iter.bi_sector;
if (a_sector < b_sector)
return -1;
@@ -1691,7 +1691,7 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio,
if (IS_ERR(rbio))
return PTR_ERR(rbio);
bio_list_add(&rbio->bio_list, bio);
- rbio->bio_list_bytes = bio->bi_size;
+ rbio->bio_list_bytes = bio->bi_iter.bi_size;
/*
* don't plug on full rbios, just get them out the door
@@ -2044,7 +2044,7 @@ int raid56_parity_recover(struct btrfs_root *root, struct bio *bio,
rbio->read_rebuild = 1;
bio_list_add(&rbio->bio_list, bio);
- rbio->bio_list_bytes = bio->bi_size;
+ rbio->bio_list_bytes = bio->bi_iter.bi_size;
rbio->faila = find_logical_bio_stripe(rbio, bio);
if (rbio->faila == -1) {
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 1fd3f33..bb9a928 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -1308,7 +1308,7 @@ static void scrub_recheck_block(struct btrfs_fs_info *fs_info,
continue;
}
bio->bi_bdev = page->dev->bdev;
- bio->bi_sector = page->physical >> 9;
+ bio->bi_iter.bi_sector = page->physical >> 9;
bio_add_page(bio, page->page, PAGE_SIZE, 0);
if (btrfsic_submit_bio_wait(READ, bio))
@@ -1427,7 +1427,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
if (!bio)
return -EIO;
bio->bi_bdev = page_bad->dev->bdev;
- bio->bi_sector = page_bad->physical >> 9;
+ bio->bi_iter.bi_sector = page_bad->physical >> 9;
ret = bio_add_page(bio, page_good->page, PAGE_SIZE, 0);
if (PAGE_SIZE != ret) {
@@ -1520,7 +1520,7 @@ again:
bio->bi_private = sbio;
bio->bi_end_io = scrub_wr_bio_end_io;
bio->bi_bdev = sbio->dev->bdev;
- bio->bi_sector = sbio->physical >> 9;
+ bio->bi_iter.bi_sector = sbio->physical >> 9;
sbio->err = 0;
} else if (sbio->physical + sbio->page_count * PAGE_SIZE !=
spage->physical_for_dev_replace ||
@@ -1926,7 +1926,7 @@ again:
bio->bi_private = sbio;
bio->bi_end_io = scrub_bio_end_io;
bio->bi_bdev = sbio->dev->bdev;
- bio->bi_sector = sbio->physical >> 9;
+ bio->bi_iter.bi_sector = sbio->physical >> 9;
sbio->err = 0;
} else if (sbio->physical + sbio->page_count * PAGE_SIZE !=
spage->physical ||
@@ -3371,8 +3371,8 @@ static int write_page_nocow(struct scrub_ctx *sctx,
spin_unlock(&sctx->stat_lock);
return -ENOMEM;
}
- bio->bi_size = 0;
- bio->bi_sector = physical_for_dev_replace >> 9;
+ bio->bi_iter.bi_size = 0;
+ bio->bi_iter.bi_sector = physical_for_dev_replace >> 9;
bio->bi_bdev = dev->bdev;
ret = bio_add_page(bio, page, PAGE_CACHE_SIZE, 0);
if (ret != PAGE_CACHE_SIZE) {
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 92303f4..54d2685 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -5298,6 +5298,13 @@ static void btrfs_end_bio(struct bio *bio, int err)
bio_put(bio);
bio = bbio->orig_bio;
}
+
+ /*
+ * We have original bio now. So increment bi_remaining to
+ * account for it in endio
+ */
+ atomic_inc(&bio->bi_remaining);
+
bio->bi_private = bbio->private;
bio->bi_end_io = bbio->end_io;
btrfs_io_bio(bio)->mirror_num = bbio->mirror_num;
@@ -5411,7 +5418,7 @@ static int bio_size_ok(struct block_device *bdev, struct bio *bio,
if (!q->merge_bvec_fn)
return 1;
- bvm.bi_size = bio->bi_size - prev->bv_len;
+ bvm.bi_size = bio->bi_iter.bi_size - prev->bv_len;
if (q->merge_bvec_fn(q, &bvm, prev) < prev->bv_len)
return 0;
return 1;
@@ -5426,7 +5433,7 @@ static void submit_stripe_bio(struct btrfs_root *root, struct btrfs_bio *bbio,
bio->bi_private = bbio;
btrfs_io_bio(bio)->stripe_index = dev_nr;
bio->bi_end_io = btrfs_end_bio;
- bio->bi_sector = physical >> 9;
+ bio->bi_iter.bi_sector = physical >> 9;
#ifdef DEBUG
{
struct rcu_string *name;
@@ -5464,7 +5471,7 @@ again:
while (bvec <= (first_bio->bi_io_vec + first_bio->bi_vcnt - 1)) {
if (bio_add_page(bio, bvec->bv_page, bvec->bv_len,
bvec->bv_offset) < bvec->bv_len) {
- u64 len = bio->bi_size;
+ u64 len = bio->bi_iter.bi_size;
atomic_inc(&bbio->stripes_pending);
submit_stripe_bio(root, bbio, bio, physical, dev_nr,
@@ -5486,7 +5493,7 @@ static void bbio_error(struct btrfs_bio *bbio, struct bio *bio, u64 logical)
bio->bi_private = bbio->private;
bio->bi_end_io = bbio->end_io;
btrfs_io_bio(bio)->mirror_num = bbio->mirror_num;
- bio->bi_sector = logical >> 9;
+ bio->bi_iter.bi_sector = logical >> 9;
kfree(bbio);
bio_endio(bio, -EIO);
}
@@ -5497,7 +5504,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
{
struct btrfs_device *dev;
struct bio *first_bio = bio;
- u64 logical = (u64)bio->bi_sector << 9;
+ u64 logical = (u64)bio->bi_iter.bi_sector << 9;
u64 length = 0;
u64 map_length;
u64 *raid_map = NULL;
@@ -5506,7 +5513,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
int total_devs = 1;
struct btrfs_bio *bbio = NULL;
- length = bio->bi_size;
+ length = bio->bi_iter.bi_size;
map_length = length;
ret = __btrfs_map_block(root->fs_info, rw, logical, &map_length, &bbio,
diff --git a/fs/buffer.c b/fs/buffer.c
index 6024877..1c04ec6 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2982,11 +2982,11 @@ static void guard_bh_eod(int rw, struct bio *bio, struct buffer_head *bh)
* let it through, and the IO layer will turn it into
* an EIO.
*/
- if (unlikely(bio->bi_sector >= maxsector))
+ if (unlikely(bio->bi_iter.bi_sector >= maxsector))
return;
- maxsector -= bio->bi_sector;
- bytes = bio->bi_size;
+ maxsector -= bio->bi_iter.bi_sector;
+ bytes = bio->bi_iter.bi_size;
if (likely((bytes >> 9) <= maxsector))
return;
@@ -2994,7 +2994,7 @@ static void guard_bh_eod(int rw, struct bio *bio, struct buffer_head *bh)
bytes = maxsector << 9;
/* Truncate the bio.. */
- bio->bi_size = bytes;
+ bio->bi_iter.bi_size = bytes;
bio->bi_io_vec[0].bv_len = bytes;
/* ..and clear the end of the buffer for reads */
@@ -3029,14 +3029,14 @@ int _submit_bh(int rw, struct buffer_head *bh, unsigned long bio_flags)
*/
bio = bio_alloc(GFP_NOIO, 1);
- bio->bi_sector = bh->b_blocknr * (bh->b_size >> 9);
+ bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio->bi_bdev = bh->b_bdev;
bio->bi_io_vec[0].bv_page = bh->b_page;
bio->bi_io_vec[0].bv_len = bh->b_size;
bio->bi_io_vec[0].bv_offset = bh_offset(bh);
bio->bi_vcnt = 1;
- bio->bi_size = bh->b_size;
+ bio->bi_iter.bi_size = bh->b_size;
bio->bi_end_io = end_bio_bh_io_sync;
bio->bi_private = bh;
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 0e04142..160a548 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -375,7 +375,7 @@ dio_bio_alloc(struct dio *dio, struct dio_submit *sdio,
bio = bio_alloc(GFP_KERNEL, nr_vecs);
bio->bi_bdev = bdev;
- bio->bi_sector = first_sector;
+ bio->bi_iter.bi_sector = first_sector;
if (dio->is_async)
bio->bi_end_io = dio_bio_end_aio;
else
@@ -719,7 +719,7 @@ static inline int dio_send_cur_page(struct dio *dio, struct dio_submit *sdio,
if (sdio->bio) {
loff_t cur_offset = sdio->cur_page_fs_offset;
loff_t bio_next_offset = sdio->logical_offset_in_bio +
- sdio->bio->bi_size;
+ sdio->bio->bi_iter.bi_size;
/*
* See whether this new request is contiguous with the old.
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index d488f80..ab95508 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -65,9 +65,9 @@ static void ext4_finish_bio(struct bio *bio)
{
int i;
int error = !test_bit(BIO_UPTODATE, &bio->bi_flags);
+ struct bio_vec *bvec;
- for (i = 0; i < bio->bi_vcnt; i++) {
- struct bio_vec *bvec = &bio->bi_io_vec[i];
+ bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
struct buffer_head *bh, *head;
unsigned bio_start = bvec->bv_offset;
@@ -298,7 +298,7 @@ ext4_io_end_t *ext4_get_io_end(ext4_io_end_t *io_end)
static void ext4_end_bio(struct bio *bio, int error)
{
ext4_io_end_t *io_end = bio->bi_private;
- sector_t bi_sector = bio->bi_sector;
+ sector_t bi_sector = bio->bi_iter.bi_sector;
BUG_ON(!io_end);
bio->bi_end_io = NULL;
@@ -366,7 +366,7 @@ static int io_submit_init_bio(struct ext4_io_submit *io,
bio = bio_alloc(GFP_NOIO, min(nvecs, BIO_MAX_PAGES));
if (!bio)
return -ENOMEM;
- bio->bi_sector = bh->b_blocknr * (bh->b_size >> 9);
+ bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio->bi_bdev = bh->b_bdev;
bio->bi_end_io = ext4_end_bio;
bio->bi_private = ext4_get_io_end(io->io_end);
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 0ae5587..2261ccd 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -26,40 +26,33 @@
static void f2fs_read_end_io(struct bio *bio, int err)
{
- const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
- struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
+ struct bio_vec *bvec;
+ int i;
- do {
+ bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
- if (--bvec >= bio->bi_io_vec)
- prefetchw(&bvec->bv_page->flags);
-
- if (unlikely(!uptodate)) {
+ if (!err) {
+ SetPageUptodate(page);
+ } else {
ClearPageUptodate(page);
SetPageError(page);
- } else {
- SetPageUptodate(page);
}
unlock_page(page);
- } while (bvec >= bio->bi_io_vec);
-
+ }
bio_put(bio);
}
static void f2fs_write_end_io(struct bio *bio, int err)
{
- const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
- struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
- struct f2fs_sb_info *sbi = F2FS_SB(bvec->bv_page->mapping->host->i_sb);
+ struct f2fs_sb_info *sbi = F2FS_SB(bio->bi_io_vec->bv_page->mapping->host->i_sb);
+ struct bio_vec *bvec;
+ int i;
- do {
+ bio_for_each_segment_all(bvec, bio, i) {
struct page *page = bvec->bv_page;
- if (--bvec >= bio->bi_io_vec)
- prefetchw(&bvec->bv_page->flags);
-
- if (unlikely(!uptodate)) {
+ if (unlikely(err)) {
SetPageError(page);
set_bit(AS_EIO, &page->mapping->flags);
set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG);
@@ -67,7 +60,7 @@ static void f2fs_write_end_io(struct bio *bio, int err)
}
end_page_writeback(page);
dec_page_count(sbi, F2FS_WRITEBACK);
- } while (bvec >= bio->bi_io_vec);
+ }
if (bio->bi_private)
complete(bio->bi_private);
@@ -91,7 +84,7 @@ static struct bio *__bio_alloc(struct f2fs_sb_info *sbi, block_t blk_addr,
bio = bio_alloc(GFP_NOIO, npages);
bio->bi_bdev = sbi->sb->s_bdev;
- bio->bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr);
+ bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr);
bio->bi_end_io = is_read ? f2fs_read_end_io : f2fs_write_end_io;
return bio;
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index 58f0640..7669379 100644
--- a/fs/gfs2/lops.c
+++ b/fs/gfs2/lops.c
@@ -273,7 +273,7 @@ static struct bio *gfs2_log_alloc_bio(struct gfs2_sbd *sdp, u64 blkno)
nrvecs = max(nrvecs/2, 1U);
}
- bio->bi_sector = blkno * (sb->s_blocksize >> 9);
+ bio->bi_iter.bi_sector = blkno * (sb->s_blocksize >> 9);
bio->bi_bdev = sb->s_bdev;
bio->bi_end_io = gfs2_end_log_write;
bio->bi_private = sdp;
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 1e712b5..c6872d0 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -238,7 +238,7 @@ static int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector, int silent)
lock_page(page);
bio = bio_alloc(GFP_NOFS, 1);
- bio->bi_sector = sector * (sb->s_blocksize >> 9);
+ bio->bi_iter.bi_sector = sector * (sb->s_blocksize >> 9);
bio->bi_bdev = sb->s_bdev;
bio_add_page(bio, page, PAGE_SIZE, 0);
diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
index e9a97a0..3f99964 100644
--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -63,7 +63,7 @@ int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
sector &= ~((io_size >> HFSPLUS_SECTOR_SHIFT) - 1);
bio = bio_alloc(GFP_NOIO, 1);
- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
bio->bi_bdev = sb->s_bdev;
if (!(rw & WRITE) && data)
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index 360d27c..8d811e0 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1998,20 +1998,20 @@ static int lbmRead(struct jfs_log * log, int pn, struct lbuf ** bpp)
bio = bio_alloc(GFP_NOFS, 1);
- bio->bi_sector = bp->l_blkno << (log->l2bsize - 9);
+ bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9);
bio->bi_bdev = log->bdev;
bio->bi_io_vec[0].bv_page = bp->l_page;
bio->bi_io_vec[0].bv_len = LOGPSIZE;
bio->bi_io_vec[0].bv_offset = bp->l_offset;
bio->bi_vcnt = 1;
- bio->bi_size = LOGPSIZE;
+ bio->bi_iter.bi_size = LOGPSIZE;
bio->bi_end_io = lbmIODone;
bio->bi_private = bp;
/*check if journaling to disk has been disabled*/
if (log->no_integrity) {
- bio->bi_size = 0;
+ bio->bi_iter.bi_size = 0;
lbmIODone(bio, 0);
} else {
submit_bio(READ_SYNC, bio);
@@ -2144,21 +2144,21 @@ static void lbmStartIO(struct lbuf * bp)
jfs_info("lbmStartIO\n");
bio = bio_alloc(GFP_NOFS, 1);
- bio->bi_sector = bp->l_blkno << (log->l2bsize - 9);
+ bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9);
bio->bi_bdev = log->bdev;
bio->bi_io_vec[0].bv_page = bp->l_page;
bio->bi_io_vec[0].bv_len = LOGPSIZE;
bio->bi_io_vec[0].bv_offset = bp->l_offset;
bio->bi_vcnt = 1;
- bio->bi_size = LOGPSIZE;
+ bio->bi_iter.bi_size = LOGPSIZE;
bio->bi_end_io = lbmIODone;
bio->bi_private = bp;
/* check if journaling to disk has been disabled */
if (log->no_integrity) {
- bio->bi_size = 0;
+ bio->bi_iter.bi_size = 0;
lbmIODone(bio, 0);
} else {
submit_bio(WRITE_SYNC, bio);
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index d165cde..49ba7ff 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -416,7 +416,7 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
* count from hitting zero before we're through
*/
inc_io(page);
- if (!bio->bi_size)
+ if (!bio->bi_iter.bi_size)
goto dump_bio;
submit_bio(WRITE, bio);
nr_underway++;
@@ -438,7 +438,7 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
bio = bio_alloc(GFP_NOFS, 1);
bio->bi_bdev = inode->i_sb->s_bdev;
- bio->bi_sector = pblock << (inode->i_blkbits - 9);
+ bio->bi_iter.bi_sector = pblock << (inode->i_blkbits - 9);
bio->bi_end_io = metapage_write_end_io;
bio->bi_private = page;
@@ -452,7 +452,7 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
if (bio) {
if (bio_add_page(bio, page, bio_bytes, bio_offset) < bio_bytes)
goto add_failed;
- if (!bio->bi_size)
+ if (!bio->bi_iter.bi_size)
goto dump_bio;
submit_bio(WRITE, bio);
@@ -517,7 +517,8 @@ static int metapage_readpage(struct file *fp, struct page *page)
bio = bio_alloc(GFP_NOFS, 1);
bio->bi_bdev = inode->i_sb->s_bdev;
- bio->bi_sector = pblock << (inode->i_blkbits - 9);
+ bio->bi_iter.bi_sector =
+ pblock << (inode->i_blkbits - 9);
bio->bi_end_io = metapage_read_end_io;
bio->bi_private = page;
len = xlen << inode->i_blkbits;
diff --git a/fs/logfs/dev_bdev.c b/fs/logfs/dev_bdev.c
index 0f95f0d..76279e1 100644
--- a/fs/logfs/dev_bdev.c
+++ b/fs/logfs/dev_bdev.c
@@ -26,9 +26,9 @@ static int sync_request(struct page *page, struct block_device *bdev, int rw)
bio_vec.bv_len = PAGE_SIZE;
bio_vec.bv_offset = 0;
bio.bi_vcnt = 1;
- bio.bi_size = PAGE_SIZE;
bio.bi_bdev = bdev;
- bio.bi_sector = page->index * (PAGE_SIZE >> 9);
+ bio.bi_iter.bi_sector = page->index * (PAGE_SIZE >> 9);
+ bio.bi_iter.bi_size = PAGE_SIZE;
return submit_bio_wait(rw, &bio);
}
@@ -56,22 +56,18 @@ static DECLARE_WAIT_QUEUE_HEAD(wq);
static void writeseg_end_io(struct bio *bio, int err)
{
const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
- struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
+ struct bio_vec *bvec;
+ int i;
struct super_block *sb = bio->bi_private;
struct logfs_super *super = logfs_super(sb);
- struct page *page;
BUG_ON(!uptodate); /* FIXME: Retry io or write elsewhere */
BUG_ON(err);
- BUG_ON(bio->bi_vcnt == 0);
- do {
- page = bvec->bv_page;
- if (--bvec >= bio->bi_io_vec)
- prefetchw(&bvec->bv_page->flags);
-
- end_page_writeback(page);
- page_cache_release(page);
- } while (bvec >= bio->bi_io_vec);
+
+ bio_for_each_segment_all(bvec, bio, i) {
+ end_page_writeback(bvec->bv_page);
+ page_cache_release(bvec->bv_page);
+ }
bio_put(bio);
if (atomic_dec_and_test(&super->s_pending_writes))
wake_up(&wq);
@@ -96,9 +92,9 @@ static int __bdev_writeseg(struct super_block *sb, u64 ofs, pgoff_t index,
if (i >= max_pages) {
/* Block layer cannot split bios :( */
bio->bi_vcnt = i;
- bio->bi_size = i * PAGE_SIZE;
+ bio->bi_iter.bi_size = i * PAGE_SIZE;
bio->bi_bdev = super->s_bdev;
- bio->bi_sector = ofs >> 9;
+ bio->bi_iter.bi_sector = ofs >> 9;
bio->bi_private = sb;
bio->bi_end_io = writeseg_end_io;
atomic_inc(&super->s_pending_writes);
@@ -123,9 +119,9 @@ static int __bdev_writeseg(struct super_block *sb, u64 ofs, pgoff_t index,
unlock_page(page);
}
bio->bi_vcnt = nr_pages;
- bio->bi_size = nr_pages * PAGE_SIZE;
+ bio->bi_iter.bi_size = nr_pages * PAGE_SIZE;
bio->bi_bdev = super->s_bdev;
- bio->bi_sector = ofs >> 9;
+ bio->bi_iter.bi_sector = ofs >> 9;
bio->bi_private = sb;
bio->bi_end_io = writeseg_end_io;
atomic_inc(&super->s_pending_writes);
@@ -188,9 +184,9 @@ static int do_erase(struct super_block *sb, u64 ofs, pgoff_t index,
if (i >= max_pages) {
/* Block layer cannot split bios :( */
bio->bi_vcnt = i;
- bio->bi_size = i * PAGE_SIZE;
+ bio->bi_iter.bi_size = i * PAGE_SIZE;
bio->bi_bdev = super->s_bdev;
- bio->bi_sector = ofs >> 9;
+ bio->bi_iter.bi_sector = ofs >> 9;
bio->bi_private = sb;
bio->bi_end_io = erase_end_io;
atomic_inc(&super->s_pending_writes);
@@ -209,9 +205,9 @@ static int do_erase(struct super_block *sb, u64 ofs, pgoff_t index,
bio->bi_io_vec[i].bv_offset = 0;
}
bio->bi_vcnt = nr_pages;
- bio->bi_size = nr_pages * PAGE_SIZE;
+ bio->bi_iter.bi_size = nr_pages * PAGE_SIZE;
bio->bi_bdev = super->s_bdev;
- bio->bi_sector = ofs >> 9;
+ bio->bi_iter.bi_sector = ofs >> 9;
bio->bi_private = sb;
bio->bi_end_io = erase_end_io;
atomic_inc(&super->s_pending_writes);
diff --git a/fs/mpage.c b/fs/mpage.c
index 0face1c..4979ffa 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -43,16 +43,14 @@
*/
static void mpage_end_io(struct bio *bio, int err)
{
- const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
- struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
+ struct bio_vec *bv;
+ int i;
- do {
- struct page *page = bvec->bv_page;
+ bio_for_each_segment_all(bv, bio, i) {
+ struct page *page = bv->bv_page;
- if (--bvec >= bio->bi_io_vec)
- prefetchw(&bvec->bv_page->flags);
if (bio_data_dir(bio) == READ) {
- if (uptodate) {
+ if (!err) {
SetPageUptodate(page);
} else {
ClearPageUptodate(page);
@@ -60,14 +58,15 @@ static void mpage_end_io(struct bio *bio, int err)
}
unlock_page(page);
} else { /* bio_data_dir(bio) == WRITE */
- if (!uptodate) {
+ if (err) {
SetPageError(page);
if (page->mapping)
set_bit(AS_EIO, &page->mapping->flags);
}
end_page_writeback(page);
}
- } while (bvec >= bio->bi_io_vec);
+ }
+
bio_put(bio);
}
@@ -94,7 +93,7 @@ mpage_alloc(struct block_device *bdev,
if (bio) {
bio->bi_bdev = bdev;
- bio->bi_sector = first_sector;
+ bio->bi_iter.bi_sector = first_sector;
}
return bio;
}
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index e242bbf..56ff823 100644
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -134,8 +134,8 @@ bl_submit_bio(int rw, struct bio *bio)
if (bio) {
get_parallel(bio->bi_private);
dprintk("%s submitting %s bio %u@%llu\n", __func__,
- rw == READ ? "read" : "write",
- bio->bi_size, (unsigned long long)bio->bi_sector);
+ rw == READ ? "read" : "write", bio->bi_iter.bi_size,
+ (unsigned long long)bio->bi_iter.bi_sector);
submit_bio(rw, bio);
}
return NULL;
@@ -156,7 +156,8 @@ static struct bio *bl_alloc_init_bio(int npg, sector_t isect,
}
if (bio) {
- bio->bi_sector = isect - be->be_f_offset + be->be_v_offset;
+ bio->bi_iter.bi_sector = isect - be->be_f_offset +
+ be->be_v_offset;
bio->bi_bdev = be->be_mdev;
bio->bi_end_io = end_io;
bio->bi_private = par;
@@ -201,18 +202,14 @@ static struct bio *bl_add_page_to_bio(struct bio *bio, int npg, int rw,
static void bl_end_io_read(struct bio *bio, int err)
{
struct parallel_io *par = bio->bi_private;
- const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
- struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
+ struct bio_vec *bvec;
+ int i;
- do {
- struct page *page = bvec->bv_page;
+ if (!err)
+ bio_for_each_segment_all(bvec, bio, i)
+ SetPageUptodate(bvec->bv_page);
- if (--bvec >= bio->bi_io_vec)
- prefetchw(&bvec->bv_page->flags);
- if (uptodate)
- SetPageUptodate(page);
- } while (bvec >= bio->bi_io_vec);
- if (!uptodate) {
+ if (err) {
struct nfs_read_data *rdata = par->data;
struct nfs_pgio_header *header = rdata->header;
@@ -383,20 +380,16 @@ static void mark_extents_written(struct pnfs_block_layout *bl,
static void bl_end_io_write_zero(struct bio *bio, int err)
{
struct parallel_io *par = bio->bi_private;
- const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
- struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
-
- do {
- struct page *page = bvec->bv_page;
+ struct bio_vec *bvec;
+ int i;
- if (--bvec >= bio->bi_io_vec)
- prefetchw(&bvec->bv_page->flags);
+ bio_for_each_segment_all(bvec, bio, i) {
/* This is the zeroing page we added */
- end_page_writeback(page);
- page_cache_release(page);
- } while (bvec >= bio->bi_io_vec);
+ end_page_writeback(bvec->bv_page);
+ page_cache_release(bvec->bv_page);
+ }
- if (unlikely(!uptodate)) {
+ if (unlikely(err)) {
struct nfs_write_data *data = par->data;
struct nfs_pgio_header *header = data->header;
@@ -519,7 +512,7 @@ bl_do_readpage_sync(struct page *page, struct pnfs_block_extent *be,
isect = (page->index << PAGE_CACHE_SECTOR_SHIFT) +
(offset / SECTOR_SIZE);
- bio->bi_sector = isect - be->be_f_offset + be->be_v_offset;
+ bio->bi_iter.bi_sector = isect - be->be_f_offset + be->be_v_offset;
bio->bi_bdev = be->be_mdev;
bio->bi_end_io = bl_read_single_end_io;
diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index 2d8be51..dc3a9efd 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -416,7 +416,8 @@ static struct bio *nilfs_alloc_seg_bio(struct the_nilfs *nilfs, sector_t start,
}
if (likely(bio)) {
bio->bi_bdev = nilfs->ns_bdev;
- bio->bi_sector = start << (nilfs->ns_blocksize_bits - 9);
+ bio->bi_iter.bi_sector =
+ start << (nilfs->ns_blocksize_bits - 9);
}
return bio;
}
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 73920ff..bf482df 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -413,7 +413,7 @@ static struct bio *o2hb_setup_one_bio(struct o2hb_region *reg,
}
/* Must put everything in 512 byte sectors for the bio... */
- bio->bi_sector = (reg->hr_start_block + cs) << (bits - 9);
+ bio->bi_iter.bi_sector = (reg->hr_start_block + cs) << (bits - 9);
bio->bi_bdev = reg->hr_bdev;
bio->bi_private = wc;
bio->bi_end_io = o2hb_bio_end_io;
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index a267394..db2cfb0 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -407,7 +407,7 @@ xfs_alloc_ioend_bio(
struct bio *bio = bio_alloc(GFP_NOIO, nvecs);
ASSERT(bio->bi_private == NULL);
- bio->bi_sector = bh->b_blocknr * (bh->b_size >> 9);
+ bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9);
bio->bi_bdev = bh->b_bdev;
return bio;
}
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 5175711..9c061ef 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1240,7 +1240,7 @@ next_chunk:
bio = bio_alloc(GFP_NOIO, nr_pages);
bio->bi_bdev = bp->b_target->bt_bdev;
- bio->bi_sector = sector;
+ bio->bi_iter.bi_sector = sector;
bio->bi_end_io = xfs_buf_bio_end_io;
bio->bi_private = bp;
@@ -1262,7 +1262,7 @@ next_chunk:
total_nr_pages--;
}
- if (likely(bio->bi_size)) {
+ if (likely(bio->bi_iter.bi_size)) {
if (xfs_buf_is_vmapped(bp)) {
flush_kernel_vmap_range(bp->b_addr,
xfs_buf_vmap_len(bp));
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