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    Subject[patch 41/71] SCSI: mpt2sas: Excessive log info causes sas iounit page time out
    2.6.30-stable review patch.  If anyone has any objections, please let us know.

    ------------------
    From: Kashyap, Desai <kashyap.desai@lsi.com>

    commit be9e8cd75ce8d94ae4aab721fdcc337fa78a9090 upstream.

    Inhibit 0x3117 loginfos - during cable pull, there are too many printks going
    to the syslog, this is have impact on how fast the interrupt routine can handle
    keeping up with command completions; this was the root cause to the config
    pages timeouts.

    Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
    Signed-off-by: James Bottomley <James.Bottomley@suse.de>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    drivers/scsi/mpt2sas/mpt2sas_base.c | 4 ++++
    drivers/scsi/mpt2sas/mpt2sas_scsih.c | 4 ++++
    2 files changed, 8 insertions(+)

    --- a/drivers/scsi/mpt2sas/mpt2sas_base.c
    +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
    @@ -440,6 +440,10 @@ _base_sas_log_info(struct MPT2SAS_ADAPTE
    if (sas_loginfo.dw.bus_type != 3 /*SAS*/)
    return;

    + /* each nexus loss loginfo */
    + if (log_info == 0x31170000)
    + return;
    +
    /* eat the loginfos associated with task aborts */
    if (ioc->ignore_loginfos && (log_info == 30050000 || log_info ==
    0x31140000 || log_info == 0x31130000))
    --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
    +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
    @@ -2560,6 +2560,10 @@ _scsih_scsi_ioc_info(struct MPT2SAS_ADAP
    char *desc_ioc_state = NULL;
    char *desc_scsi_status = NULL;
    char *desc_scsi_state = ioc->tmp_string;
    + u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
    +
    + if (log_info == 0x31170000)
    + return;

    switch (ioc_status) {
    case MPI2_IOCSTATUS_SUCCESS:



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