| From | Paul Gortmaker <> | Subject | [v2.6.34-stable 051/165] libiscsi_tcp: fix LLD data allocation | Date | Wed, 15 Aug 2012 15:46:35 -0400 |
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From: Mike Christie <michaelc@cs.wisc.edu>
------------------- This is a commit scheduled for the next v2.6.34 longterm release. http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git If you see a problem with using this for longterm, please comment. -------------------
commit 74dcd0ec735ba9c5bef254b2f6e53068cf3f9ff0 upstream.
Have libiscsi_tcp have upper layers allocate the LLD data along with the iscsi_cls_conn struct, so it is refcounted.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> --- drivers/scsi/libiscsi_tcp.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-)
diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c index 5c92620..b90bb2a 100644 --- a/drivers/scsi/libiscsi_tcp.c +++ b/drivers/scsi/libiscsi_tcp.c @@ -1073,7 +1073,8 @@ iscsi_tcp_conn_setup(struct iscsi_cls_session *cls_session, int dd_data_size, struct iscsi_cls_conn *cls_conn; struct iscsi_tcp_conn *tcp_conn; - cls_conn = iscsi_conn_setup(cls_session, sizeof(*tcp_conn), conn_idx); + cls_conn = iscsi_conn_setup(cls_session, + sizeof(*tcp_conn) + dd_data_size, conn_idx); if (!cls_conn) return NULL; conn = cls_conn->dd_data; @@ -1085,22 +1086,13 @@ iscsi_tcp_conn_setup(struct iscsi_cls_session *cls_session, int dd_data_size, tcp_conn = conn->dd_data; tcp_conn->iscsi_conn = conn; - - tcp_conn->dd_data = kzalloc(dd_data_size, GFP_KERNEL); - if (!tcp_conn->dd_data) { - iscsi_conn_teardown(cls_conn); - return NULL; - } + tcp_conn->dd_data = conn->dd_data + sizeof(*tcp_conn); return cls_conn; } EXPORT_SYMBOL_GPL(iscsi_tcp_conn_setup); void iscsi_tcp_conn_teardown(struct iscsi_cls_conn *cls_conn) { - struct iscsi_conn *conn = cls_conn->dd_data; - struct iscsi_tcp_conn *tcp_conn = conn->dd_data; - - kfree(tcp_conn->dd_data); iscsi_conn_teardown(cls_conn); } EXPORT_SYMBOL_GPL(iscsi_tcp_conn_teardown); -- 1.7.12.rc2
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