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authorEric Moore <eric.moore@lsi.com>2007-09-29 20:16:53 +0400
committerJames Bottomley <jejb@mulgrave.localdomain>2007-10-12 22:52:15 +0400
commite8206381f5842269691f3164ec0d79b7059bd710 (patch)
tree4d3db0df57f86b34425dcfe929c940d8d06fe614 /drivers/message/fusion/mptbase.h
parentbc6e089a13a5c0ac36247616baecd6fc77405e7f (diff)
downloadlinux-e8206381f5842269691f3164ec0d79b7059bd710.tar.xz
[SCSI] mpt fusion: lock down ScsiLookup
ScsiLookup is an array of pending scmd pointers that the scsi lld maintains. This array is touched from queuecommand, eh threads, and interrupt context. This array should put under locks, hence this patch to synchronize its access. I've added some nice little function wrappers for this, and moved the ScsiLookup array over to MPT_ADAPTER struct. Signed-off-by: Eric Moore <Eric.Moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/message/fusion/mptbase.h')
-rw-r--r--drivers/message/fusion/mptbase.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index 945656438e71..eb65c493ce0a 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -704,6 +704,8 @@ typedef struct _MPT_ADAPTER
struct work_struct fc_rescan_work;
char fc_rescan_work_q_name[KOBJ_NAME_LEN];
struct workqueue_struct *fc_rescan_work_q;
+ struct scsi_cmnd **ScsiLookup;
+ spinlock_t scsi_lookup_lock;
} MPT_ADAPTER;
/*
@@ -817,7 +819,6 @@ typedef struct _MPT_SCSI_HOST {
MPT_ADAPTER *ioc;
int port;
u32 pad0;
- struct scsi_cmnd **ScsiLookup;
MPT_LOCAL_REPLY *pLocal; /* used for internal commands */
struct timer_list timer;
/* Pool of memory for holding SCpnts before doing