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Message-Id: <20220722093823.4158756-2-nhuck@google.com>
Date: Fri, 22 Jul 2022 09:38:21 +0000
From: Nathan Huckleberry <nhuck@...gle.com>
To: linux-kernel@...r.kernel.org, dm-devel@...hat.com,
Alasdair Kergon <agk@...hat.com>,
Mike Snitzer <snitzer@...nel.org>
Cc: Eric Biggers <ebiggers@...nel.org>,
Sami Tolvanen <samitolvanen@...gle.com>,
Nathan Huckleberry <nhuck@...gle.com>
Subject: [PATCH 1/3] dm-bufio: Add flags for dm_bufio_client_create
Add a flags argument to dm_bufio_client_create and update all the
callers. This is in preparation to add the DM_BUFIO_GET_CANT_SLEEP
flag.
Signed-off-by: Nathan Huckleberry <nhuck@...gle.com>
---
drivers/md/dm-bufio.c | 3 ++-
drivers/md/dm-ebs-target.c | 3 ++-
drivers/md/dm-integrity.c | 2 +-
drivers/md/dm-snap-persistent.c | 2 +-
drivers/md/dm-verity-fec.c | 4 ++--
drivers/md/dm-verity-target.c | 2 +-
drivers/md/persistent-data/dm-block-manager.c | 3 ++-
include/linux/dm-bufio.h | 3 ++-
8 files changed, 13 insertions(+), 9 deletions(-)
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index 5ffa1dcf84cf..ad5603eb12e3 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -1717,7 +1717,8 @@ static unsigned long dm_bufio_shrink_count(struct shrinker *shrink, struct shrin
struct dm_bufio_client *dm_bufio_client_create(struct block_device *bdev, unsigned block_size,
unsigned reserved_buffers, unsigned aux_size,
void (*alloc_callback)(struct dm_buffer *),
- void (*write_callback)(struct dm_buffer *))
+ void (*write_callback)(struct dm_buffer *),
+ unsigned int flags)
{
int r;
struct dm_bufio_client *c;
diff --git a/drivers/md/dm-ebs-target.c b/drivers/md/dm-ebs-target.c
index 0221fa63f888..c90f9b9b1f02 100644
--- a/drivers/md/dm-ebs-target.c
+++ b/drivers/md/dm-ebs-target.c
@@ -312,7 +312,8 @@ static int ebs_ctr(struct dm_target *ti, unsigned int argc, char **argv)
goto bad;
}
- ec->bufio = dm_bufio_client_create(ec->dev->bdev, to_bytes(ec->u_bs), 1, 0, NULL, NULL);
+ ec->bufio = dm_bufio_client_create(ec->dev->bdev, to_bytes(ec->u_bs), 1,
+ 0, NULL, NULL, 0);
if (IS_ERR(ec->bufio)) {
ti->error = "Cannot create dm bufio client";
r = PTR_ERR(ec->bufio);
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 3d5a0ce123c9..a508073d8414 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -4439,7 +4439,7 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned argc, char **argv)
}
ic->bufio = dm_bufio_client_create(ic->meta_dev ? ic->meta_dev->bdev : ic->dev->bdev,
- 1U << (SECTOR_SHIFT + ic->log2_buffer_sectors), 1, 0, NULL, NULL);
+ 1U << (SECTOR_SHIFT + ic->log2_buffer_sectors), 1, 0, NULL, NULL, 0);
if (IS_ERR(ic->bufio)) {
r = PTR_ERR(ic->bufio);
ti->error = "Cannot initialize dm-bufio";
diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c
index 3bb5cff5d6fc..aaa699749c3b 100644
--- a/drivers/md/dm-snap-persistent.c
+++ b/drivers/md/dm-snap-persistent.c
@@ -494,7 +494,7 @@ static int read_exceptions(struct pstore *ps,
client = dm_bufio_client_create(dm_snap_cow(ps->store->snap)->bdev,
ps->store->chunk_size << SECTOR_SHIFT,
- 1, 0, NULL, NULL);
+ 1, 0, NULL, NULL, 0);
if (IS_ERR(client))
return PTR_ERR(client);
diff --git a/drivers/md/dm-verity-fec.c b/drivers/md/dm-verity-fec.c
index cea2b3789736..23cffce56403 100644
--- a/drivers/md/dm-verity-fec.c
+++ b/drivers/md/dm-verity-fec.c
@@ -749,7 +749,7 @@ int verity_fec_ctr(struct dm_verity *v)
f->bufio = dm_bufio_client_create(f->dev->bdev,
f->io_size,
- 1, 0, NULL, NULL);
+ 1, 0, NULL, NULL, 0);
if (IS_ERR(f->bufio)) {
ti->error = "Cannot initialize FEC bufio client";
return PTR_ERR(f->bufio);
@@ -765,7 +765,7 @@ int verity_fec_ctr(struct dm_verity *v)
f->data_bufio = dm_bufio_client_create(v->data_dev->bdev,
1 << v->data_dev_block_bits,
- 1, 0, NULL, NULL);
+ 1, 0, NULL, NULL, 0);
if (IS_ERR(f->data_bufio)) {
ti->error = "Cannot initialize FEC data bufio client";
return PTR_ERR(f->data_bufio);
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index d6dbd47492a8..5d3fc58a3c34 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -1266,7 +1266,7 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv)
v->bufio = dm_bufio_client_create(v->hash_dev->bdev,
1 << v->hash_dev_block_bits, 1, sizeof(struct buffer_aux),
- dm_bufio_alloc_callback, NULL);
+ dm_bufio_alloc_callback, NULL, 0);
if (IS_ERR(v->bufio)) {
ti->error = "Cannot initialize dm-bufio";
r = PTR_ERR(v->bufio);
diff --git a/drivers/md/persistent-data/dm-block-manager.c b/drivers/md/persistent-data/dm-block-manager.c
index 54c089a50b15..11935864f50f 100644
--- a/drivers/md/persistent-data/dm-block-manager.c
+++ b/drivers/md/persistent-data/dm-block-manager.c
@@ -391,7 +391,8 @@ struct dm_block_manager *dm_block_manager_create(struct block_device *bdev,
bm->bufio = dm_bufio_client_create(bdev, block_size, max_held_per_thread,
sizeof(struct buffer_aux),
dm_block_manager_alloc_callback,
- dm_block_manager_write_callback);
+ dm_block_manager_write_callback,
+ 0);
if (IS_ERR(bm->bufio)) {
r = PTR_ERR(bm->bufio);
kfree(bm);
diff --git a/include/linux/dm-bufio.h b/include/linux/dm-bufio.h
index 90bd558a17f5..e21480715255 100644
--- a/include/linux/dm-bufio.h
+++ b/include/linux/dm-bufio.h
@@ -24,7 +24,8 @@ struct dm_bufio_client *
dm_bufio_client_create(struct block_device *bdev, unsigned block_size,
unsigned reserved_buffers, unsigned aux_size,
void (*alloc_callback)(struct dm_buffer *),
- void (*write_callback)(struct dm_buffer *));
+ void (*write_callback)(struct dm_buffer *),
+ unsigned int flags);
/*
* Release a buffered IO cache.
--
2.37.1.359.gd136c6c3e2-goog
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