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dm-snap: Combine request operation type and flags

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Pass the request operation and its flags as a single argument to improve
kernel code uniformity.

Cc: Alasdair Kergon <agk@redhat.com>
Cc: Mike Snitzer <snitzer@kernel.org>
Cc: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220714180729.1065367-29-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Bart Van Assche 2022-07-14 11:06:54 -07:00 committed by Jens Axboe
parent c1389b3333
commit 6b99013957
1 changed files with 12 additions and 12 deletions
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24
drivers/md/dm-snap-persistent.c
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@ -226,8 +226,8 @@ static void do_metadata(struct work_struct *work)
/*
* 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 op,
int op_flags, int metadata)
static int chunk_io(struct pstore *ps, void *area, chunk_t chunk, blk_opf_t opf,
int metadata)
{
struct dm_io_region where = {
.bdev = dm_snap_cow(ps->store->snap)->bdev,
@ -235,7 +235,7 @@ static int chunk_io(struct pstore *ps, void *area, chunk_t chunk, int op,
.count = ps->store->chunk_size,
};
struct dm_io_request io_req = {
.bi_opf = op | op_flags,
.bi_opf = opf,
.mem.type = DM_IO_VMA,
.mem.ptr.vma = area,
.client = ps->io_client,
@ -281,11 +281,11 @@ static void skip_metadata(struct pstore *ps)
* Read or write a metadata area. Remembering to skip the first
* chunk which holds the header.
*/
static int area_io(struct pstore *ps, int op, int op_flags)
static int area_io(struct pstore *ps, blk_opf_t opf)
{
chunk_t chunk = area_location(ps, ps->current_area);
return chunk_io(ps, ps->area, chunk, op, op_flags, 0);
return chunk_io(ps, ps->area, chunk, opf, 0);
}
static void zero_memory_area(struct pstore *ps)
@ -296,7 +296,7 @@ static void zero_memory_area(struct pstore *ps)
static int zero_disk_area(struct pstore *ps, chunk_t area)
{
return chunk_io(ps, ps->zero_area, area_location(ps, area),
REQ_OP_WRITE, 0, 0);
REQ_OP_WRITE, 0);
}
static int read_header(struct pstore *ps, int *new_snapshot)
@ -328,7 +328,7 @@ static int read_header(struct pstore *ps, int *new_snapshot)
if (r)
return r;
r = chunk_io(ps, ps->header_area, 0, REQ_OP_READ, 0, 1);
r = chunk_io(ps, ps->header_area, 0, REQ_OP_READ, 1);
if (r)
goto bad;
@ -389,7 +389,7 @@ static int write_header(struct pstore *ps)
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, REQ_OP_WRITE, 0, 1);
return chunk_io(ps, ps->header_area, 0, REQ_OP_WRITE, 1);
}
/*
@ -733,8 +733,8 @@ static void persistent_commit_exception(struct dm_exception_store *store,
/*
* Commit exceptions to disk.
*/
if (ps->valid && area_io(ps, REQ_OP_WRITE,
REQ_PREFLUSH | REQ_FUA | REQ_SYNC))
if (ps->valid && area_io(ps, REQ_OP_WRITE | REQ_PREFLUSH | REQ_FUA |
REQ_SYNC))
ps->valid = 0;
/*
@ -774,7 +774,7 @@ static int persistent_prepare_merge(struct dm_exception_store *store,
return 0;
ps->current_area--;
r = area_io(ps, REQ_OP_READ, 0);
r = area_io(ps, REQ_OP_READ);
if (r < 0)
return r;
ps->current_committed = ps->exceptions_per_area;
@ -811,7 +811,7 @@ static int persistent_commit_merge(struct dm_exception_store *store,
for (i = 0; i < nr_merged; i++)
clear_exception(ps, ps->current_committed - 1 - i);
r = area_io(ps, REQ_OP_WRITE, REQ_PREFLUSH | REQ_FUA);
r = area_io(ps, REQ_OP_WRITE | REQ_PREFLUSH | REQ_FUA);
if (r < 0)
return r;