Currently device state is being managed by each individual int
variable such as struct btrfs_device::is_tgtdev_for_dev_replace.
Instead of that declare btrfs_device::dev_state
BTRFS_DEV_STATE_FLUSH_SENT and use the bit operations.
Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
---
v3: Define BTRFS_DEV_STATE_FLUSH_SENT as bit nr
fs/btrfs/disk-io.c | 6 +++---
fs/btrfs/volumes.h | 1 +
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 890e3a6a2f3e..9b20c1f3563b 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3359,7 +3359,7 @@ static void write_dev_flush(struct btrfs_device *device)
bio->bi_private = &device->flush_wait;
btrfsic_submit_bio(bio);
- device->flush_bio_sent = 1;
+ set_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state);
}
/*
@@ -3369,10 +3369,10 @@ static blk_status_t wait_dev_flush(struct btrfs_device *device)
{
struct bio *bio = device->flush_bio;
- if (!device->flush_bio_sent)
+ if (!test_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state))
return BLK_STS_OK;
- device->flush_bio_sent = 0;
+ clear_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state);
wait_for_completion_io(&device->flush_wait);
return bio->bi_status;
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index a15f8b103072..826fce3d6825 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -51,6 +51,7 @@ struct btrfs_pending_bios {
#define BTRFS_DEV_STATE_IN_FS_METADATA 1
#define BTRFS_DEV_STATE_MISSING 2
#define BTRFS_DEV_STATE_REPLACE_TGT 3
+#define BTRFS_DEV_STATE_FLUSH_SENT 4
struct btrfs_device {
struct list_head dev_list;
--
2.7.0
--
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