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Commit 760b48ca authored by Bart Van Assche's avatar Bart Van Assche Committed by Jens Axboe
Browse files

skd: Document locking assumptions 



Signed-off-by: default avatarBart 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: default avatarJens Axboe <axboe@kernel.dk>
parent 4854afe3

drivers/block/skd_main.c

+8 −0
Original line number Diff line number Diff line
@@ -1894,6 +1894,8 @@ static void skd_complete_internal(struct skd_device *skdev, 
	struct skd_scsi_request *scsi =

		(struct skd_scsi_request *)&skspcl->msg_buf[64];



	lockdep_assert_held(&skdev->lock);



	SKD_ASSERT(skspcl == &skdev->internal_skspcl);



	dev_dbg(&skdev->pdev->dev, "complete internal %x\n", scsi->cdb[0]);
@@ -2564,6 +2566,8 @@ static int skd_isr_completion_posted(struct skd_device *skdev, 
	int rc = 0;

	int processed = 0;



	lockdep_assert_held(&skdev->lock);



	for (;; ) {

		SKD_ASSERT(skdev->skcomp_ix < SKD_N_COMPLETION_ENTRY);
@@ -2701,6 +2705,8 @@ static void skd_complete_other(struct skd_device *skdev, 
	u32 req_slot;

	struct skd_special_context *skspcl;



	lockdep_assert_held(&skdev->lock);



	req_id = skcomp->tag;

	req_table = req_id & SKD_ID_TABLE_MASK;

	req_slot = req_id & SKD_ID_SLOT_MASK;
@@ -2774,6 +2780,8 @@ static void skd_complete_special(struct skd_device *skdev, 
				 volatile struct fit_comp_error_info *skerr,

				 struct skd_special_context *skspcl)

{

	lockdep_assert_held(&skdev->lock);



	dev_dbg(&skdev->pdev->dev, " completing special request %p\n", skspcl);

	if (skspcl->orphaned) {

		/* Discard orphaned request */