167 lines
8.1 KiB
C
167 lines
8.1 KiB
C
/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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*** To edit the content of this header, modify the corresponding
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*** source file (e.g. under external/kernel-headers/original/) then
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*** run bionic/libc/kernel/tools/update_all.py
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***
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*** Any manual change here will be lost the next time this script will
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*** be run. You've been warned!
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***
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****************************************************************************
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****************************************************************************/
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#ifndef __LINUX_BIO_H
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#define __LINUX_BIO_H
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#include <linux/highmem.h>
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#include <linux/mempool.h>
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#include <linux/ioprio.h>
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#include <asm/io.h>
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#if defined(BIO_VMERGE_MAX_SIZE) && defined(BIO_VMERGE_BOUNDARY)
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#define BIOVEC_VIRT_START_SIZE(x) (bvec_to_phys(x) & (BIO_VMERGE_BOUNDARY - 1))
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define BIOVEC_VIRT_OVERSIZE(x) ((x) > BIO_VMERGE_MAX_SIZE)
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#else
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#define BIOVEC_VIRT_START_SIZE(x) 0
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#define BIOVEC_VIRT_OVERSIZE(x) 0
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#endif
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#ifndef BIO_VMERGE_BOUNDARY
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#define BIO_VMERGE_BOUNDARY 0
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#endif
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define BIO_DEBUG
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#ifdef BIO_DEBUG
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#define BIO_BUG_ON BUG_ON
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#else
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define BIO_BUG_ON
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#endif
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#define BIO_MAX_PAGES 256
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#define BIO_MAX_SIZE (BIO_MAX_PAGES << PAGE_CACHE_SHIFT)
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define BIO_MAX_SECTORS (BIO_MAX_SIZE >> 9)
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struct bio_vec {
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struct page *bv_page;
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unsigned int bv_len;
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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unsigned int bv_offset;
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};
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struct bio_set;
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struct bio;
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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typedef int (bio_end_io_t) (struct bio *, unsigned int, int);
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typedef void (bio_destructor_t) (struct bio *);
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struct bio {
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sector_t bi_sector;
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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struct bio *bi_next;
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struct block_device *bi_bdev;
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unsigned long bi_flags;
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unsigned long bi_rw;
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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unsigned short bi_vcnt;
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unsigned short bi_idx;
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unsigned short bi_phys_segments;
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unsigned short bi_hw_segments;
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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unsigned int bi_size;
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unsigned int bi_hw_front_size;
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unsigned int bi_hw_back_size;
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unsigned int bi_max_vecs;
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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struct bio_vec *bi_io_vec;
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bio_end_io_t *bi_end_io;
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atomic_t bi_cnt;
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void *bi_private;
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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bio_destructor_t *bi_destructor;
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};
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#define BIO_UPTODATE 0
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#define BIO_RW_BLOCK 1
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define BIO_EOF 2
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#define BIO_SEG_VALID 3
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#define BIO_CLONED 4
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#define BIO_BOUNCED 5
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define BIO_USER_MAPPED 6
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#define BIO_EOPNOTSUPP 7
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#define bio_flagged(bio, flag) ((bio)->bi_flags & (1 << (flag)))
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#define BIO_POOL_BITS (4)
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define BIO_POOL_OFFSET (BITS_PER_LONG - BIO_POOL_BITS)
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#define BIO_POOL_MASK (1UL << BIO_POOL_OFFSET)
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#define BIO_POOL_IDX(bio) ((bio)->bi_flags >> BIO_POOL_OFFSET)
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#define BIO_RW 0
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define BIO_RW_AHEAD 1
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#define BIO_RW_BARRIER 2
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#define BIO_RW_FAILFAST 3
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#define BIO_RW_SYNC 4
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define BIO_PRIO_SHIFT (8 * sizeof(unsigned long) - IOPRIO_BITS)
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#define bio_prio(bio) ((bio)->bi_rw >> BIO_PRIO_SHIFT)
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#define bio_prio_valid(bio) ioprio_valid(bio_prio(bio))
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#define bio_set_prio(bio, prio) do { WARN_ON(prio >= (1 << IOPRIO_BITS)); (bio)->bi_rw &= ((1UL << BIO_PRIO_SHIFT) - 1); (bio)->bi_rw |= ((unsigned long) (prio) << BIO_PRIO_SHIFT); } while (0)
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define bio_iovec_idx(bio, idx) (&((bio)->bi_io_vec[(idx)]))
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#define bio_iovec(bio) bio_iovec_idx((bio), (bio)->bi_idx)
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#define bio_page(bio) bio_iovec((bio))->bv_page
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#define bio_offset(bio) bio_iovec((bio))->bv_offset
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define bio_segments(bio) ((bio)->bi_vcnt - (bio)->bi_idx)
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#define bio_sectors(bio) ((bio)->bi_size >> 9)
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#define bio_cur_sectors(bio) (bio_iovec(bio)->bv_len >> 9)
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#define bio_data(bio) (page_address(bio_page((bio))) + bio_offset((bio)))
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define bio_barrier(bio) ((bio)->bi_rw & (1 << BIO_RW_BARRIER))
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#define bio_sync(bio) ((bio)->bi_rw & (1 << BIO_RW_SYNC))
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#define bio_failfast(bio) ((bio)->bi_rw & (1 << BIO_RW_FAILFAST))
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#define bio_rw_ahead(bio) ((bio)->bi_rw & (1 << BIO_RW_AHEAD))
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define bio_to_phys(bio) (page_to_phys(bio_page((bio))) + (unsigned long) bio_offset((bio)))
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#define bvec_to_phys(bv) (page_to_phys((bv)->bv_page) + (unsigned long) (bv)->bv_offset)
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#define __bio_kmap_atomic(bio, idx, kmtype) (kmap_atomic(bio_iovec_idx((bio), (idx))->bv_page, kmtype) + bio_iovec_idx((bio), (idx))->bv_offset)
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#define __bio_kunmap_atomic(addr, kmtype) kunmap_atomic(addr, kmtype)
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define __BVEC_END(bio) bio_iovec_idx((bio), (bio)->bi_vcnt - 1)
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#define __BVEC_START(bio) bio_iovec_idx((bio), (bio)->bi_idx)
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#ifndef BIOVEC_PHYS_MERGEABLE
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#define BIOVEC_PHYS_MERGEABLE(vec1, vec2) ((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2)))
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#endif
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#define BIOVEC_VIRT_MERGEABLE(vec1, vec2) ((((bvec_to_phys((vec1)) + (vec1)->bv_len) | bvec_to_phys((vec2))) & (BIO_VMERGE_BOUNDARY - 1)) == 0)
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#define __BIO_SEG_BOUNDARY(addr1, addr2, mask) (((addr1) | (mask)) == (((addr2) - 1) | (mask)))
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#define BIOVEC_SEG_BOUNDARY(q, b1, b2) __BIO_SEG_BOUNDARY(bvec_to_phys((b1)), bvec_to_phys((b2)) + (b2)->bv_len, (q)->seg_boundary_mask)
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define BIO_SEG_BOUNDARY(q, b1, b2) BIOVEC_SEG_BOUNDARY((q), __BVEC_END((b1)), __BVEC_START((b2)))
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#define bio_io_error(bio, bytes) bio_endio((bio), (bytes), -EIO)
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#define __bio_for_each_segment(bvl, bio, i, start_idx) for (bvl = bio_iovec_idx((bio), (start_idx)), i = (start_idx); i < (bio)->bi_vcnt; bvl++, i++)
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#define bio_for_each_segment(bvl, bio, i) __bio_for_each_segment(bvl, bio, i, (bio)->bi_idx)
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define bio_get(bio) atomic_inc(&(bio)->bi_cnt)
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struct bio_pair {
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struct bio bio1, bio2;
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struct bio_vec bv1, bv2;
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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atomic_t cnt;
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int error;
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};
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struct request_queue;
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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struct sg_iovec;
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#define bvec_kmap_irq(bvec, flags) (page_address((bvec)->bv_page) + (bvec)->bv_offset)
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#define bvec_kunmap_irq(buf, flags) do { *(flags) = 0; } while (0)
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#define __bio_kunmap_irq(buf, flags) bvec_kunmap_irq(buf, flags)
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/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
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#define bio_kmap_irq(bio, flags) __bio_kmap_irq((bio), (bio)->bi_idx, (flags))
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#define bio_kunmap_irq(buf,flags) __bio_kunmap_irq(buf, flags)
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#endif
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