From fefc1d97fa4b5e016bbe15447dc3edcd9e1bcb9f Mon Sep 17 00:00:00 2001 From: Pankaj Gupta Date: Fri, 5 Jul 2019 19:33:24 +0530 Subject: 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 Signed-off-by: Dan Williams --- include/linux/libnvdimm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/libnvdimm.h') 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) -- cgit v1.2.3