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authorPankaj Gupta <pagupta@redhat.com>2019-07-05 17:03:24 +0300
committerDan Williams <dan.j.williams@intel.com>2019-07-06 01:19:10 +0300
commitfefc1d97fa4b5e016bbe15447dc3edcd9e1bcb9f (patch)
treef18d110c2fdc771ca69ea6a83399f0c13f758664 /include/linux/libnvdimm.h
parent6e84200c0a2994b991259d19450eee561029bf70 (diff)
downloadlinux-fefc1d97fa4b5e016bbe15447dc3edcd9e1bcb9f.tar.xz
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 'include/linux/libnvdimm.h')
-rw-r--r--include/linux/libnvdimm.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index e13100f424c8..7a64b3ddb408 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h
@@ -263,6 +263,7 @@ int generic_nvdimm_flush(struct nd_region *nd_region);
int nvdimm_has_flush(struct nd_region *nd_region);
int nvdimm_has_cache(struct nd_region *nd_region);
int nvdimm_in_overwrite(struct nvdimm *nvdimm);
+bool is_nvdimm_sync(struct nd_region *nd_region);
static inline int nvdimm_ctl(struct nvdimm *nvdimm, unsigned int cmd, void *buf,
unsigned int buf_len, int *cmd_rc)