Can't work with raw biovecs anymore - have to use the bvec_iter
primitives which respect bi_bvec_done.
Signed-off-by: Kent Overstreet <koverstreet@xxxxxxxxxx>
Cc: Alasdair Kergon <agk@xxxxxxxxxx>
Cc: dm-devel@xxxxxxxxxx
---
drivers/md/dm-io.c | 31 +++++++++++++++++--------------
drivers/md/dm-raid1.c | 8 ++++----
include/linux/dm-io.h | 4 ++--
3 files changed, 23 insertions(+), 20 deletions(-)
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index a6de5c9..c2a6c34 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -202,26 +202,29 @@ static void list_dp_init(struct dpages *dp, struct page_list *pl, unsigned offse
/*
* Functions for getting the pages from a bvec.
*/
-static void bvec_get_page(struct dpages *dp,
+static void bio_get_page(struct dpages *dp,
struct page **p, unsigned long *len, unsigned *offset)
{
- struct bio_vec *bvec = (struct bio_vec *) dp->context_ptr;
- *p = bvec->bv_page;
- *len = bvec->bv_len;
- *offset = bvec->bv_offset;
+ struct bio *bio = dp->context_ptr;
+ struct bio_vec bvec = bio_iovec(bio);
+ *p = bvec.bv_page;
+ *len = bvec.bv_len;
+ *offset = bvec.bv_offset;
}
-static void bvec_next_page(struct dpages *dp)
+static void bio_next_page(struct dpages *dp)
{
- struct bio_vec *bvec = (struct bio_vec *) dp->context_ptr;
- dp->context_ptr = bvec + 1;
+ struct bio *bio = dp->context_ptr;
+ struct bio_vec bvec = bio_iovec(bio);
+
+ bio_advance(bio, bvec.bv_len);
}
-static void bvec_dp_init(struct dpages *dp, struct bio_vec *bvec)
+static void bio_dp_init(struct dpages *dp, struct bio *bio)
{
- dp->get_page = bvec_get_page;
- dp->next_page = bvec_next_page;
- dp->context_ptr = bvec;
+ dp->get_page = bio_get_page;
+ dp->next_page = bio_next_page;
+ dp->context_ptr = bio;
}
/*
@@ -459,8 +462,8 @@ static int dp_init(struct dm_io_request *io_req, struct dpages *dp,
list_dp_init(dp, io_req->mem.ptr.pl, io_req->mem.offset);
break;
- case DM_IO_BVEC:
- bvec_dp_init(dp, io_req->mem.ptr.bvec);
+ case DM_IO_BIO:
+ bio_dp_init(dp, io_req->mem.ptr.bio);
break;
case DM_IO_VMA:
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index e3efb91..56e8844 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -526,8 +526,8 @@ static void read_async_bio(struct mirror *m, struct bio *bio)
struct dm_io_region io;
struct dm_io_request io_req = {
.bi_rw = READ,
- .mem.type = DM_IO_BVEC,
- .mem.ptr.bvec = bio->bi_io_vec + bio->bi_iter.bi_idx,
+ .mem.type = DM_IO_BIO,
+ .mem.ptr.bio = bio,
.notify.fn = read_callback,
.notify.context = bio,
.client = m->ms->io_client,
@@ -629,8 +629,8 @@ static void do_write(struct mirror_set *ms, struct bio *bio)
struct mirror *m;
struct dm_io_request io_req = {
.bi_rw = WRITE | (bio->bi_rw & WRITE_FLUSH_FUA),
- .mem.type = DM_IO_BVEC,
- .mem.ptr.bvec = bio->bi_io_vec + bio->bi_iter.bi_idx,
+ .mem.type = DM_IO_BIO,
+ .mem.ptr.bio = bio,
.notify.fn = write_callback,
.notify.context = bio,
.client = ms->io_client,
diff --git a/include/linux/dm-io.h b/include/linux/dm-io.h
index f4b0aa3..6cf1f62 100644
--- a/include/linux/dm-io.h
+++ b/include/linux/dm-io.h
@@ -29,7 +29,7 @@ typedef void (*io_notify_fn)(unsigned long error, void *context);
enum dm_io_mem_type {
DM_IO_PAGE_LIST,/* Page list */
- DM_IO_BVEC, /* Bio vector */
+ DM_IO_BIO,
DM_IO_VMA, /* Virtual memory area */
DM_IO_KMEM, /* Kernel memory */
};
@@ -41,7 +41,7 @@ struct dm_io_memory {
union {
struct page_list *pl;
- struct bio_vec *bvec;
+ struct bio *bio;
void *vma;
void *addr;
} ptr;
--
1.8.1.3
--
dm-devel mailing list
dm-devel@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/dm-devel
