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skd: Document locking assumptions
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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1 changed files with 8 additions and 0 deletions
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@ -1894,6 +1894,8 @@ static void skd_complete_internal(struct skd_device *skdev,
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struct skd_scsi_request *scsi =
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(struct skd_scsi_request *)&skspcl->msg_buf[64];
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lockdep_assert_held(&skdev->lock);
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SKD_ASSERT(skspcl == &skdev->internal_skspcl);
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dev_dbg(&skdev->pdev->dev, "complete internal %x\n", scsi->cdb[0]);
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@ -2564,6 +2566,8 @@ static int skd_isr_completion_posted(struct skd_device *skdev,
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int rc = 0;
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int processed = 0;
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lockdep_assert_held(&skdev->lock);
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for (;; ) {
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SKD_ASSERT(skdev->skcomp_ix < SKD_N_COMPLETION_ENTRY);
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@ -2701,6 +2705,8 @@ static void skd_complete_other(struct skd_device *skdev,
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u32 req_slot;
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struct skd_special_context *skspcl;
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lockdep_assert_held(&skdev->lock);
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req_id = skcomp->tag;
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req_table = req_id & SKD_ID_TABLE_MASK;
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req_slot = req_id & SKD_ID_SLOT_MASK;
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@ -2774,6 +2780,8 @@ static void skd_complete_special(struct skd_device *skdev,
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volatile struct fit_comp_error_info *skerr,
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struct skd_special_context *skspcl)
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{
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lockdep_assert_held(&skdev->lock);
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dev_dbg(&skdev->pdev->dev, " completing special request %p\n", skspcl);
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if (skspcl->orphaned) {
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/* Discard orphaned request */
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