A comment explaining why it's defined to 5 would be useful, but so far
I can't figure the reason out.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Index: lio-core/drivers/target/iscsi/iscsi_target.c
===================================================================
--- lio-core.orig/drivers/target/iscsi/iscsi_target.c 2011-10-12 11:23:29.152772755 +0200
+++ lio-core/drivers/target/iscsi/iscsi_target.c 2011-10-12 11:24:05.148772730 +0200
@@ -765,7 +765,7 @@ static int iscsit_allocate_iovecs(struct
u32 iov_count = (cmd->se_cmd.t_data_nents == 0) ? 1 :
cmd->se_cmd.t_data_nents;
- iov_count += TRANSPORT_IOV_DATA_BUFFER;
+ iov_count += ISCSI_IOV_DATA_BUFFER;
cmd->iov_data = kzalloc(iov_count * sizeof(struct kvec), GFP_KERNEL);
if (!cmd->iov_data) {
Index: lio-core/drivers/target/iscsi/iscsi_target_core.h
===================================================================
--- lio-core.orig/drivers/target/iscsi/iscsi_target_core.h 2011-10-12 11:23:29.132775881 +0200
+++ lio-core/drivers/target/iscsi/iscsi_target_core.h 2011-10-12 11:23:52.260772464 +0200
@@ -57,6 +57,9 @@
#define TA_PROD_MODE_WRITE_PROTECT 0
#define TA_CACHE_CORE_NPS 0
+
+#define ISCSI_IOV_DATA_BUFFER 5
+
enum tpg_np_network_transport_table {
ISCSI_TCP = 0,
ISCSI_SCTP_TCP = 1,
Index: lio-core/include/target/target_core_base.h
===================================================================
--- lio-core.orig/include/target/target_core_base.h 2011-10-12 11:23:37.126272449 +0200
+++ lio-core/include/target/target_core_base.h 2011-10-12 11:23:41.536772170 +0200
@@ -11,8 +11,6 @@
#define TARGET_CORE_MOD_VERSION "v4.1.0-rc1"
-/* Used by transport_generic_allocate_iovecs() */
-#define TRANSPORT_IOV_DATA_BUFFER 5
/* Maximum Number of LUNs per Target Portal Group */
/* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */
#define TRANSPORT_MAX_LUNS_PER_TPG 256
--
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