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authorMike Marshall <hubcap@omnibond.com>2017-02-07 12:41:02 -0500
committerMike Marshall <hubcap@omnibond.com>2017-02-09 14:41:06 -0500
commiteb68d0324dc4d88ab0d6159bdcd98c247a3a8954 (patch)
tree893c79b5a9d13c1642dc201c26cdf5f3bc1f458f
parent05973c2efb40122f2a9ecde2d065f7ea5068d024 (diff)
orangefs: fix buffer size mis-match between kernel space and user space.
The deamon through which the kernel module communicates with the userspace part of Orangefs, the "client-core", sends initialization data to the kernel module with ioctl. The initialization data was built by the client-core in a 2k buffer and copy_from_user'd into a 1k buffer in the kernel module. When more than 1k of initialization data needed to be sent, some was lost, reducing the usability of the control by which debug levels are set. This patch sets the kernel side buffer to 2K to match the userspace side... Signed-off-by: Mike Marshall <hubcap@omnibond.com>
-rw-r--r--fs/orangefs/orangefs-dev-proto.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/orangefs/orangefs-dev-proto.h b/fs/orangefs/orangefs-dev-proto.h
index a3d84ffee905..f380f9ed1b28 100644
--- a/fs/orangefs/orangefs-dev-proto.h
+++ b/fs/orangefs/orangefs-dev-proto.h
@@ -50,8 +50,7 @@
* Misc constants. Please retain them as multiples of 8!
* Otherwise 32-64 bit interactions will be messed up :)
*/
-#define ORANGEFS_MAX_DEBUG_STRING_LEN 0x00000400
-#define ORANGEFS_MAX_DEBUG_ARRAY_LEN 0x00000800
+#define ORANGEFS_MAX_DEBUG_STRING_LEN 0x00000800
/*
* The maximum number of directory entries in a single request is 96.