James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> writes: > On Fri, 2010-03-12 at 19:37 -0800, Yinghai Lu wrote: >> --- >> drivers/base/attribute_container.c | 1 + >> drivers/scsi/lpfc/lpfc_attr.c | 3 +++ >> drivers/scsi/scsi_sysfs.c | 15 ++++++++++++--- >> 3 files changed, 16 insertions(+), 3 deletions(-) > > Added linux-scsi, since this seems to be a SCSI fix. > > I've no idea what actual problem this is fixing, what's the descriptive > changelog for this? The root problem is that we occasionally have unrecognized deadlocks on the sysfs attributes. For 2.6.33 I managed to get lockdep mostly working but there the way I did it generated a lot of false positives. For 2.6.34 I reworked the sysfs lockdep handling to remove the false positives by treating each sysfs attribute as it's own class. Most sysfs attributes are declared statically and don't need any initialization. Unfortunately there are a handful of dynamically allocated sysfs attributes that do need initialization. This patch is a fix to get one of those last handful of dynamically allocated sysfs attributes that I missed and apparently do not exist in my test system. None of this has any effect (for now) when lockdep is disabled. Eric -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
