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| author | Pankaj Gupta | 2019-07-05 16:03:25 +0200 |
|---|---|---|
| committer | Dan Williams | 2019-07-06 00:19:10 +0200 |
| commit | 2e9ee0955d3c2d3db56aa02ba6f948ba35d5e9c1 (patch) | |
| tree | e26bac2332a122e668c0b5378bdb440f1443b09a /drivers/md/dm.c | |
| parent | libnvdimm: add dax_dev sync flag (diff) | |
| download | kernel-qcow2-linux-2e9ee0955d3c2d3db56aa02ba6f948ba35d5e9c1.tar.gz kernel-qcow2-linux-2e9ee0955d3c2d3db56aa02ba6f948ba35d5e9c1.tar.xz kernel-qcow2-linux-2e9ee0955d3c2d3db56aa02ba6f948ba35d5e9c1.zip | |
dm: enable synchronous dax
This patch sets dax device 'DAXDEV_SYNC' flag if all the target
devices of device mapper support synchrononous DAX. If device
mapper consists of both synchronous and asynchronous dax devices,
we don't set 'DAXDEV_SYNC' flag.
'dm_table_supports_dax' is refactored to pass 'iterate_devices_fn'
as argument so that the callers can pass the appropriate functions.
Suggested-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Pankaj Gupta <pagupta@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index b1caa7188209..b92c42a72ad4 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1119,7 +1119,7 @@ static bool dm_dax_supported(struct dax_device *dax_dev, struct block_device *bd if (!map) return false; - ret = dm_table_supports_dax(map, blocksize); + ret = dm_table_supports_dax(map, device_supports_dax, &blocksize); dm_put_live_table(md, srcu_idx); |