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| author | Paolo Bonzini <pbonzini@redhat.com> | 2018-08-06 17:31:36 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-08-06 17:31:36 +0200 |
| commit | d2ce98ca0a192e1bcb89068adfe6cb736f5e351c (patch) | |
| tree | 888ccaba7b3e09bf4b81324dff38a65f5667296c /drivers/dax/super.c | |
| parent | 85eae57bbb0612387201635659be543aaac2109e (diff) | |
| parent | d72e90f33aa4709ebecc5005562f52335e106a60 (diff) | |
Merge tag 'v4.18-rc6' into HEAD
Pull bug fixes into the KVM development tree to avoid nasty conflicts.
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", |