1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index c2aea099ea4a..b09021135c3b 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -621,7 +621,16 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
         struct fd_prot fd_prot;
         sense_reason_t rc;
         int ret = 0;
-
+        /*
+         * We are currently limited by the number of iovecs (2048) per
+         * single vfs_[writev,readv] call.
+         */
+        if (cmd->data_length > FD_MAX_BYTES) {
+                pr_err("FILEIO: Not able to process I/O of %u bytes due to"
+                       "FD_MAX_BYTES: %u iovec count limitiation\n",
+                        cmd->data_length, FD_MAX_BYTES);
+                return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+        }
         /*
          * Call vectorized fileio functions to map struct scatterlist
          * physical memory addresses to struct iovec virtual memory.