[SCSI] libiscsi_tcp: use kmap in xmit path

The xmit path can sleep with a page kmapped in the network
xmit code while it waits for space to open up, so we have to use
kmap instead of kmap atomic in that path.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/scsi/libiscsi_tcp.h b/include/scsi/libiscsi_tcp.h
index 741ae7ed4394..e6b9fd2eea34 100644
--- a/include/scsi/libiscsi_tcp.h
+++ b/include/scsi/libiscsi_tcp.h
@@ -47,6 +47,7 @@ struct iscsi_segment {
         struct scatterlist      *sg;
         void                    *sg_mapped;
         unsigned int            sg_offset;
+        bool                    atomic_mapped;
 
         iscsi_segment_done_fn_t *done;
 };