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