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authorJames Bottomley <JBottomley@Parallels.com>2014-01-21 07:00:50 -0800
committerJames Bottomley <JBottomley@Parallels.com>2014-03-15 10:18:59 -0700
commite63ed0d7a98014fdfc2cfeb3f6dada313dcabb59 (patch)
tree64f3dd3c794d009538993445d8039f04407dc593 /include/scsi
parent81b86d4d275244ad7e134e95cbcfee49198da854 (diff)
[SCSI] fix our current target reap infrastructure
This patch eliminates the reap_ref and replaces it with a proper kref. On last put of this kref, the target is removed from visibility in sysfs. The final call to scsi_target_reap() for the device is done from __scsi_remove_device() and only if the device was made visible. This ensures that the target disappears as soon as the last device is gone rather than waiting until final release of the device (which is often too long). Reviewed-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable@vger.kernel.org # delay backport by 2 months for field testing Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'include/scsi')
-rw-r--r--include/scsi/scsi_device.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 622e100561d2..ccabdc1c27ca 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -269,7 +269,7 @@ struct scsi_target {
struct list_head siblings;
struct list_head devices;
struct device dev;
- unsigned int reap_ref; /* protected by the host lock */
+ struct kref reap_ref; /* last put renders target invisible */
unsigned int channel;
unsigned int id; /* target id ... replace
* scsi_device.id eventually */
@@ -296,7 +296,6 @@ struct scsi_target {
#define SCSI_DEFAULT_TARGET_BLOCKED 3
char scsi_level;
- struct execute_work ew;
enum scsi_target_state state;
void *hostdata; /* available to low-level driver */
unsigned long starget_data[0]; /* for the transport */