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2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
47 lines
1005 B
C
47 lines
1005 B
C
#ifndef _SCSI_SCSI_TCQ_H
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#define _SCSI_SCSI_TCQ_H
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#include <linux/blkdev.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#define SCSI_NO_TAG (-1) /* identify no tag in use */
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#ifdef CONFIG_BLOCK
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/**
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* scsi_host_find_tag - find the tagged command by host
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* @shost: pointer to scsi_host
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* @tag: tag
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*
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* Note: for devices using multiple hardware queues tag must have been
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* generated by blk_mq_unique_tag().
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**/
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static inline struct scsi_cmnd *scsi_host_find_tag(struct Scsi_Host *shost,
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int tag)
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{
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struct request *req = NULL;
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if (tag == SCSI_NO_TAG)
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return NULL;
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if (shost_use_blk_mq(shost)) {
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u16 hwq = blk_mq_unique_tag_to_hwq(tag);
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if (hwq < shost->tag_set.nr_hw_queues) {
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req = blk_mq_tag_to_rq(shost->tag_set.tags[hwq],
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blk_mq_unique_tag_to_tag(tag));
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}
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} else {
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req = blk_map_queue_find_tag(shost->bqt, tag);
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}
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if (!req)
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return NULL;
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return req->special;
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}
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#endif /* CONFIG_BLOCK */
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#endif /* _SCSI_SCSI_TCQ_H */
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