[PATCH 0/2] Allow scsi_prep_fn to occur for retried commands

From	Brian King <brking@linux.vnet.ibm.com>
Newsgroups	linux.kernel
Subject	[PATCH 0/2] Allow scsi_prep_fn to occur for retried commands
Date	2017-08-22 00:20 +0200
Message-ID	<uh3d7-1GC-5@gated-at.bofh.it> (permalink)
References	(3 earlier) <ufvnb-6Uk-1@gated-at.bofh.it> <ufWGK-zl-17@gated-at.bofh.it> <ufXjs-XC-13@gated-at.bofh.it> <ufXt7-10P-7@gated-at.bofh.it> <ufXMt-1mk-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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The following two patches address the hang issue being observed
with Bart's patch on powerpc. The first patch moves the initialization
of jiffies_at_alloc from scsi_init_command to scsi_init_rq, and ensures
we don't zero jiffies_at_alloc in scsi_init_command. The second patch
saves / restores the retry counter in scsi_init_command which lets us
go through scsi_init_command for retries and not forget why we were
there. 

These patches have only been boot tested on my Power machine with ipr
to ensure they fix the issue I was seeing.

-Brian

-- 
Brian King
Power Linux I/O
IBM Linux Technology Center

Thread

Re: [BUG][bisected 270065e] linux-next fails to boot on powerpc Bart Van Assche <Bart.VanAssche@wdc.com> - 2017-08-16 19:30 +0200
  Re: [BUG][bisected 270065e] linux-next fails to boot on powerpc Brian King <brking@linux.vnet.ibm.com> - 2017-08-17 01:20 +0200
    Re: [BUG][bisected 270065e] linux-next fails to boot on powerpc Bart Van Assche <Bart.VanAssche@wdc.com> - 2017-08-17 18:00 +0200
      Re: [BUG][bisected 270065e] linux-next fails to boot on powerpc Brian King <brking@linux.vnet.ibm.com> - 2017-08-18 23:10 +0200
        [PATCH] ipr: Set no_report_opcodes for RAID arrays Brian King <brking@linux.vnet.ibm.com> - 2017-08-18 23:20 +0200
          Re: [PATCH] ipr: Set no_report_opcodes for RAID arrays "Martin K. Petersen" <martin.petersen@oracle.com> - 2017-08-21 22:30 +0200
        Re: [BUG][bisected 270065e] linux-next fails to boot on powerpc Bart Van Assche <Bart.VanAssche@wdc.com> - 2017-08-18 23:50 +0200
          Re: [BUG][bisected 270065e] linux-next fails to boot on powerpc Brian King <brking@linux.vnet.ibm.com> - 2017-08-19 00:00 +0200
            Re: [BUG][bisected 270065e] linux-next fails to boot on powerpc Bart Van Assche <Bart.VanAssche@wdc.com> - 2017-08-19 00:20 +0200
              [PATCH 2/2] scsi: Preserve retry counter through scsi_prep_fn Brian King <brking@linux.vnet.ibm.com> - 2017-08-22 00:20 +0200
                Re: [PATCH 2/2] scsi: Preserve retry counter through scsi_prep_fn "hch@lst.de" <hch@lst.de> - 2017-08-22 09:00 +0200
              [PATCH 0/2] Allow scsi_prep_fn to occur for retried commands Brian King <brking@linux.vnet.ibm.com> - 2017-08-22 00:20 +0200
                [PATCH 1/2] scsi: Move scsi_cmd->jiffies_at_alloc initialization to  allocation time Brian King <brking@linux.vnet.ibm.com> - 2017-08-22 00:20 +0200
                Re: [PATCH 1/2] scsi: Move scsi_cmd->jiffies_at_alloc initialization  to allocation time Brian King <brking@linux.vnet.ibm.com> - 2017-08-22 00:20 +0200
                [PATCHv2 1/2] scsi: Move scsi_cmd->jiffies_at_alloc initialization to  allocation time Brian King <brking@linux.vnet.ibm.com> - 2017-08-22 00:50 +0200
                Re: [PATCH 1/2] scsi: Move scsi_cmd->jiffies_at_alloc         initialization to allocation time "hch@lst.de" <hch@lst.de> - 2017-08-22 09:00 +0200
                Re: [PATCH 0/2] Allow scsi_prep_fn to occur for retried commands Abdul Haleem <abdhalee@linux.vnet.ibm.com> - 2017-08-22 08:50 +0200
            Re: [BUG][bisected 270065e] linux-next fails to boot on powerpc "Martin K. Petersen" <martin.petersen@oracle.com> - 2017-08-21 22:30 +0200
  Re: [BUG][bisected 270065e] linux-next fails to boot on powerpc Michael Ellerman <mpe@ellerman.id.au> - 2017-08-17 03:40 +0200

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