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https://github.com/torvalds/linux
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dbbf3e94c2
Move the entirely bio allocation, mapping and submission into ->do_task. This a) avoids blocking the I/O submission thread unessecarily, and b) simplifies the code greatly Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
31 lines
651 B
C
31 lines
651 B
C
#ifndef TARGET_CORE_IBLOCK_H
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#define TARGET_CORE_IBLOCK_H
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#define IBLOCK_VERSION "4.0"
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#define IBLOCK_MAX_CDBS 16
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#define IBLOCK_LBA_SHIFT 9
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struct iblock_req {
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struct se_task ib_task;
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unsigned char ib_scsi_cdb[TCM_MAX_COMMAND_SIZE];
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atomic_t ib_bio_cnt;
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atomic_t ib_bio_err_cnt;
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} ____cacheline_aligned;
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#define IBDF_HAS_UDEV_PATH 0x01
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struct iblock_dev {
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unsigned char ibd_udev_path[SE_UDEV_PATH_LEN];
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u32 ibd_flags;
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struct bio_set *ibd_bio_set;
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struct block_device *ibd_bd;
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struct iblock_hba *ibd_host;
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} ____cacheline_aligned;
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struct iblock_hba {
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int iblock_host_id;
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} ____cacheline_aligned;
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#endif /* TARGET_CORE_IBLOCK_H */
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