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authorPankaj Gupta <pagupta@redhat.com>2019-07-05 19:33:24 +0530
committerDan Williams <dan.j.williams@intel.com>2019-07-05 15:19:10 -0700
commitfefc1d97fa4b5e016bbe15447dc3edcd9e1bcb9f (patch)
treef18d110c2fdc771ca69ea6a83399f0c13f758664 /drivers/md/dm.c
parent6e84200c0a2994b991259d19450eee561029bf70 (diff)
libnvdimm: add dax_dev sync flag
This patch adds 'DAXDEV_SYNC' flag which is set for nd_region doing synchronous flush. This later is used to disable MAP_SYNC functionality for ext4 & xfs filesystem for devices don't support synchronous flush. Signed-off-by: Pankaj Gupta <pagupta@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.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 5475081dcbd6..b1caa7188209 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1991,7 +1991,8 @@ static struct mapped_device *alloc_dev(int minor)
sprintf(md->disk->disk_name, "dm-%d", minor);
if (IS_ENABLED(CONFIG_DAX_DRIVER)) {
- md->dax_dev = alloc_dax(md, md->disk->disk_name, &dm_dax_ops);
+ md->dax_dev = alloc_dax(md, md->disk->disk_name,
+ &dm_dax_ops, 0);
if (!md->dax_dev)
goto bad;
}