lkml.org 
[lkml]   [2006]   [Aug]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH 2.6.18-rc4-mm1 4/8] ieee1394: sbp2: recheck node generation in sbp2_update
While sbp2_update() is doing its duties after a bus reset, another reset
could happen. Don't accept new requests until the next undisturbed
sbp2_update() or until sbp2_remove().

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
---
Index: linux/drivers/ieee1394/sbp2.c
===================================================================
--- linux.orig/drivers/ieee1394/sbp2.c 2006-08-14 00:22:32.000000000 +0200
+++ linux/drivers/ieee1394/sbp2.c 2006-08-14 00:27:15.000000000 +0200
@@ -812,11 +812,12 @@ static int sbp2_update(struct unit_direc
*/
sbp2scsi_complete_all_commands(scsi_id, DID_BUS_BUSY);

- /* Make sure we unblock requests (since this is likely after a bus
- * reset). */
- atomic_set(&scsi_id->unfinished_reset, 0);
- scsi_unblock_requests(scsi_id->scsi_host);
-
+ /* Accept new commands unless there was another bus reset in the
+ * meantime. */
+ if (hpsb_node_entry_valid(scsi_id->ne)) {
+ atomic_set(&scsi_id->unfinished_reset, 0);
+ scsi_unblock_requests(scsi_id->scsi_host);
+ }
return 0;
}


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-08-14 19:51    [W:0.273 / U:0.044 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site