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| author | James Bottomley <JBottomley@Parallels.com> | 2014-01-21 07:00:50 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-31 13:20:27 -0700 |
| commit | bf1802de75b7e3aab950efde9efb61637e4f449f (patch) | |
| tree | a8bda6235e2bbea9f3e722d9434179f9f95f4ab5 /include/scsi | |
| parent | 7261684765e4411dff5ec5ffbad52f5009a2941b (diff) | |
| download | kernel-common-bf1802de75b7e3aab950efde9efb61637e4f449f.tar.gz kernel-common-bf1802de75b7e3aab950efde9efb61637e4f449f.tar.bz2 kernel-common-bf1802de75b7e3aab950efde9efb61637e4f449f.zip | |
scsi: fix our current target reap infrastructure
commit e63ed0d7a98014fdfc2cfeb3f6dada313dcabb59 upstream.
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>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_device.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index d65fbec2533d..b4f1effc9216 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -257,7 +257,7 @@ 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 */ @@ -284,7 +284,6 @@ 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 */ |