From: Vishal Verma <vishal.l.verma@intel.com>
Date: Fri, 30 Jun 2017 18:32:52 -0600
Subject: [PATCH] libnvdimm: fix the clear-error check in nsio_rw_bytes
References: bnc#1060662
Patch-mainline: 4.12.4
Git-commit: 7e5a21dfe5524a85705d3bc7b540c849cc13e9a1
commit 7e5a21dfe5524a85705d3bc7b540c849cc13e9a1 upstream.
A leftover from the 'bandaid' fix that disabled BTT error clearing in
rw_bytes resulted in an incorrect check. After we converted these checks
over to use the NVDIMM_IO_ATOMIC flag, the ndns->claim check was both
redundant, and incorrect. Remove it.
Fixes: 3ae3d67ba705 ("libnvdimm: add an atomic vs process context flag to rw_bytes")
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/nvdimm/claim.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c
index 7ceb5fa4f2a1..4baa4ce825ab 100644
--- a/drivers/nvdimm/claim.c
+++ b/drivers/nvdimm/claim.c
@@ -260,8 +260,7 @@ static int nsio_rw_bytes(struct nd_namespace_common *ndns,
* work around this collision.
*/
if (IS_ALIGNED(offset, 512) && IS_ALIGNED(size, 512)
- && !(flags & NVDIMM_IO_ATOMIC)
- && !ndns->claim) {
+ && !(flags & NVDIMM_IO_ATOMIC)) {
long cleared;
cleared = nvdimm_clear_poison(&ndns->dev,
--
2.14.2