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-rw-r--r--drivers/staging/lustre/lustre/include/lustre_net.h2
-rw-r--r--drivers/staging/lustre/lustre/llite/dir.c5
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h b/drivers/staging/lustre/lustre/include/lustre_net.h
index 745adbb74cfc..7640e179e39d 100644
--- a/drivers/staging/lustre/lustre/include/lustre_net.h
+++ b/drivers/staging/lustre/lustre/include/lustre_net.h
@@ -264,6 +264,8 @@
#define LDLM_MAXREQSIZE (5 * 1024)
#define LDLM_MAXREPSIZE (1024)
+#define MDS_MAXREQSIZE (5 * 1024) /* >= 4736 */
+
#define OST_MAXREQSIZE (5 * 1024)
/* Macro to hide a typecast. */
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index 7fbc18e3e654..c391b60394e4 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -1804,6 +1804,11 @@ out_rmdir:
/* Compute the whole struct size */
totalsize = hur_len(hur);
OBD_FREE_PTR(hur);
+
+ /* Final size will be more than double totalsize */
+ if (totalsize >= MDS_MAXREQSIZE / 3)
+ return -E2BIG;
+
OBD_ALLOC_LARGE(hur, totalsize);
if (hur == NULL)
return -ENOMEM;