[PATCH v8 03/10] nvdimm: Increase max envelope size for IOCTL
In __nd_ioctl must first read in the fixed sized portion of an ioctl
so that it can then determine the size of the variable part.
Prepare for ND_CMD_CALL_DSM calls which have larger fixed portion
wrapper.
Signed-off-by: Jerry Hoemann <jerry.hoemann(a)hpe.com>
---
include/linux/libnvdimm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index 833867b..af31d1c 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h
@@ -27,7 +27,7 @@ enum {
/* need to set a limit somewhere, but yes, this is likely overkill */
ND_IOCTL_MAX_BUFLEN = SZ_4M,
ND_CMD_MAX_ELEM = 5,
- ND_CMD_MAX_ENVELOPE = 16,
+ ND_CMD_MAX_ENVELOPE = 256,
ND_MAX_MAPPINGS = 32,
/* region flag indicating to direct-map persistent memory by default */
--
1.7.11.3