dm: use bio op accessors
Separate the op from the rq_flag_bits and have dm
set/get the bio using bio_set_op_attrs/bio_op.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index 4d39093..b8cf956 100644
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -226,8 +226,8 @@
/*
* Read or write a chunk aligned and sized block of data from a device.
*/
-static int chunk_io(struct pstore *ps, void *area, chunk_t chunk, int rw,
- int metadata)
+static int chunk_io(struct pstore *ps, void *area, chunk_t chunk, int op,
+ int op_flags, int metadata)
{
struct dm_io_region where = {
.bdev = dm_snap_cow(ps->store->snap)->bdev,
@@ -235,7 +235,8 @@
.count = ps->store->chunk_size,
};
struct dm_io_request io_req = {
- .bi_rw = rw,
+ .bi_op = op,
+ .bi_op_flags = op_flags,
.mem.type = DM_IO_VMA,
.mem.ptr.vma = area,
.client = ps->io_client,
@@ -281,14 +282,14 @@
* Read or write a metadata area. Remembering to skip the first
* chunk which holds the header.
*/
-static int area_io(struct pstore *ps, int rw)
+static int area_io(struct pstore *ps, int op, int op_flags)
{
int r;
chunk_t chunk;
chunk = area_location(ps, ps->current_area);
- r = chunk_io(ps, ps->area, chunk, rw, 0);
+ r = chunk_io(ps, ps->area, chunk, op, op_flags, 0);
if (r)
return r;
@@ -302,7 +303,8 @@
static int zero_disk_area(struct pstore *ps, chunk_t area)
{
- return chunk_io(ps, ps->zero_area, area_location(ps, area), WRITE, 0);
+ return chunk_io(ps, ps->zero_area, area_location(ps, area),
+ REQ_OP_WRITE, 0, 0);
}
static int read_header(struct pstore *ps, int *new_snapshot)
@@ -334,7 +336,7 @@
if (r)
return r;
- r = chunk_io(ps, ps->header_area, 0, READ, 1);
+ r = chunk_io(ps, ps->header_area, 0, REQ_OP_READ, 0, 1);
if (r)
goto bad;
@@ -395,7 +397,7 @@
dh->version = cpu_to_le32(ps->version);
dh->chunk_size = cpu_to_le32(ps->store->chunk_size);
- return chunk_io(ps, ps->header_area, 0, WRITE, 1);
+ return chunk_io(ps, ps->header_area, 0, REQ_OP_WRITE, 0, 1);
}
/*
@@ -739,7 +741,7 @@
/*
* Commit exceptions to disk.
*/
- if (ps->valid && area_io(ps, WRITE_FLUSH_FUA))
+ if (ps->valid && area_io(ps, REQ_OP_WRITE, WRITE_FLUSH_FUA))
ps->valid = 0;
/*
@@ -779,7 +781,7 @@
return 0;
ps->current_area--;
- r = area_io(ps, READ);
+ r = area_io(ps, REQ_OP_READ, 0);
if (r < 0)
return r;
ps->current_committed = ps->exceptions_per_area;
@@ -816,7 +818,7 @@
for (i = 0; i < nr_merged; i++)
clear_exception(ps, ps->current_committed - 1 - i);
- r = area_io(ps, WRITE_FLUSH_FUA);
+ r = area_io(ps, REQ_OP_WRITE, WRITE_FLUSH_FUA);
if (r < 0)
return r;