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| author | Thomas Gleixner <tglx@linutronix.de> | 2018-07-12 23:19:58 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-07-12 23:19:58 +0300 |
| commit | c6bb11147eb09bd39f316c6062455b88c905ab6e (patch) | |
| tree | 5a1a6ec2970daef5fa8546741ced3ef3924bf807 /drivers/dax/super.c | |
| parent | a8802d97e73346bc81609df9dfba7d3306f40d87 (diff) | |
| parent | b061c7a513afe14a68af41cec7c3476befc40e95 (diff) | |
| download | linux-c6bb11147eb09bd39f316c6062455b88c905ab6e.tar.xz | |
Merge branch 'fortglx/4.19/time' of https://git.linaro.org/people/john.stultz/linux into timers/core
Pull timekeeping updates from John Stultz:
- Make the timekeeping update more precise when NTP frequency is set
directly by updating the multiplier.
- Adjust selftests
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", |