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scsi: core: add scsi_host_busy_iter()

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Add an iterator scsi_host_busy_iter() to traverse all busy commands.  If
locking against concurrent command completions is required, it has to be
provided by the caller.

Link: https://lore.kernel.org/r/20200228075318.91255-11-hare@suse.de
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke 2020-02-28 08:53:15 +01:00 • committed by Martin K. Petersen
parent 3d3ca53b16
commit dcece99e86
2 changed files with 40 additions and 0 deletions
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3
include/scsi/scsi_host.h
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@ -761,6 +761,9 @@ extern void scsi_block_requests(struct Scsi_Host *);
extern int scsi_host_block(struct Scsi_Host *shost);
extern int scsi_host_unblock(struct Scsi_Host *shost, int new_state);
void scsi_host_busy_iter(struct Scsi_Host *,
bool (*fn)(struct scsi_cmnd *, void *, bool), void *priv);
struct class_container;
/*