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| author | Takashi Iwai <tiwai@suse.de> | 2018-08-12 09:55:01 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-08-12 09:55:10 +0300 |
| commit | 73b383141d296c55bfbc0ce336a4a946627e7780 (patch) | |
| tree | df0840c4ea4bbd5aa453931a594936bd9adab61d /drivers/dax/super.c | |
| parent | 627661ced8246c8e833f3bc3817070e934cd79ba (diff) | |
| parent | 91c6e15efc1756b068dc6e945c1626397e60a119 (diff) | |
| download | linux-73b383141d296c55bfbc0ce336a4a946627e7780.tar.xz | |
Merge branch 'for-next' into for-linus
Preparation for 4.19 merge material.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'drivers/dax/super.c')
| -rw-r--r-- | drivers/dax/super.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/dax/super.c b/drivers/dax/super.c index 903d9c473749..45276abf03aa 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -86,6 +86,7 @@ bool __bdev_dax_supported(struct block_device *bdev, int blocksize) { struct dax_device *dax_dev; bool dax_enabled = false; + struct request_queue *q; pgoff_t pgoff; int err, id; void *kaddr; @@ -99,6 +100,13 @@ bool __bdev_dax_supported(struct block_device *bdev, int blocksize) return false; } + q = bdev_get_queue(bdev); + if (!q || !blk_queue_dax(q)) { + pr_debug("%s: error: request queue doesn't support dax\n", + bdevname(bdev, buf)); + return false; + } + err = bdev_dax_pgoff(bdev, 0, PAGE_SIZE, &pgoff); if (err) { pr_debug("%s: error: unaligned partition for dax\n", |