diff options
| author | Christoph Hellwig | 2022-04-15 06:52:45 +0200 |
|---|---|---|
| committer | Jens Axboe | 2022-04-17 19:49:59 -0600 |
| commit | 36d254893aa6a6e204075c3cce94bb572ac32c04 (patch) | |
| tree | b4f9198da60eca095cbb05f8fb63ad243efca2ee | |
| parent | a557e82e5a01826f902bd94fc925c03f253cb712 (diff) | |
block: add a bdev_stable_writes helper
Add a helper to check the stable writes flag based on the block_device
instead of having to poke into the block layer internal request_queue.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220415045258.199825-15-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | drivers/md/dm-table.c | 4 | ||||
| -rw-r--r-- | fs/super.c | 2 | ||||
| -rw-r--r-- | include/linux/blkdev.h | 6 | ||||
| -rw-r--r-- | mm/swapfile.c | 2 |
4 files changed, 9 insertions, 5 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 5e38d0dd009d..d46839faa0ca 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -1950,9 +1950,7 @@ static int device_requires_stable_pages(struct dm_target *ti, struct dm_dev *dev, sector_t start, sector_t len, void *data) { - struct request_queue *q = bdev_get_queue(dev->bdev); - - return blk_queue_stable_writes(q); + return bdev_stable_writes(dev->bdev); } int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, diff --git a/fs/super.c b/fs/super.c index f1d4a193602d..60f57c7bc0a6 100644 --- a/fs/super.c +++ b/fs/super.c @@ -1204,7 +1204,7 @@ static int set_bdev_super(struct super_block *s, void *data) s->s_dev = s->s_bdev->bd_dev; s->s_bdi = bdi_get(s->s_bdev->bd_disk->bdi); - if (blk_queue_stable_writes(s->s_bdev->bd_disk->queue)) + if (bdev_stable_writes(s->s_bdev)) s->s_iflags |= SB_I_STABLE_WRITES; return 0; } diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 075b16d4560e..a433798c3343 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1330,6 +1330,12 @@ static inline bool bdev_nonrot(struct block_device *bdev) return blk_queue_nonrot(bdev_get_queue(bdev)); } +static inline bool bdev_stable_writes(struct block_device *bdev) +{ + return test_bit(QUEUE_FLAG_STABLE_WRITES, + &bdev_get_queue(bdev)->queue_flags); +} + static inline bool bdev_write_cache(struct block_device *bdev) { return test_bit(QUEUE_FLAG_WC, &bdev_get_queue(bdev)->queue_flags); diff --git a/mm/swapfile.c b/mm/swapfile.c index d5ab7ec4d92c..4069f17a82c8 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -3065,7 +3065,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) goto bad_swap_unlock_inode; } - if (p->bdev && blk_queue_stable_writes(p->bdev->bd_disk->queue)) + if (p->bdev && bdev_stable_writes(p->bdev)) p->flags |= SWP_STABLE_WRITES; if (p->bdev && p->bdev->bd_disk->fops->rw_page) |