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authorMike Christie <michaelc@cs.wisc.edu>2006-07-24 16:47:39 -0400
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-07-28 12:49:34 -0400
commitc8dc1e523b0f1e6dd71cdabd8c7d7587c6dc27f9 (patch)
tree466efa148c152f4330c92f02f81bc72e8f395114 /drivers/scsi/iscsi_tcp.h
parent9aaa2b4621280b6de1ecfb6dd7cd5cbe59fd1264 (diff)
[SCSI] iscsi bugfixes: reduce memory allocations
We currently try to allocate a max_recv_data_segment_length which can be very large (default is 64K), and common uses are up to 1MB. It is very very difficult to allocte this much contiguous memory and it turns out we never even use it. We really only need a couple of pages, so this patch has us allocates just what we know what we need today. Later if vendors start adding vendor specific data and we need to handle large buffers we can do this, but for the last 4 years we have not seen anyone do this or request it. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/iscsi_tcp.h')
-rw-r--r--drivers/scsi/iscsi_tcp.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h
index 808302832e68..6a4ee704e46e 100644
--- a/drivers/scsi/iscsi_tcp.h
+++ b/drivers/scsi/iscsi_tcp.h
@@ -78,8 +78,6 @@ struct iscsi_tcp_conn {
78 char hdrext[4*sizeof(__u16) + 78 char hdrext[4*sizeof(__u16) +
79 sizeof(__u32)]; 79 sizeof(__u32)];
80 int data_copied; 80 int data_copied;
81 char *data; /* data placeholder */
82 int data_size; /* actual recv_dlength */
83 int stop_stage; /* conn_stop() flag: * 81 int stop_stage; /* conn_stop() flag: *
84 * stop to recover, * 82 * stop to recover, *
85 * stop to terminate */ 83 * stop to terminate */