X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=fs%2Fbtrfs%2Fextent_io.c;h=8df72ded901838ab6ea5faccdc4a0049117093d9;hb=0b246afa62b0cf5b09d078121f543135f28492ad;hp=8ed05d95584a30c2c0cdc4feb1bd2036e93d3276;hpb=cf2b191cbac23d92a9b0319f80c6d274690cb9c0;p=mirror_ubuntu-hirsute-kernel.git diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 8ed05d95584a..8df72ded9018 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2029,7 +2029,7 @@ int repair_io_failure(struct inode *inode, u64 start, u64 length, u64 logical, * read repair operation. */ btrfs_bio_counter_inc_blocked(fs_info); - ret = btrfs_map_block(fs_info, WRITE, logical, + ret = btrfs_map_block(fs_info, BTRFS_MAP_WRITE, logical, &map_length, &bbio, mirror_num); if (ret) { btrfs_bio_counter_dec(fs_info); @@ -2070,17 +2070,18 @@ int repair_io_failure(struct inode *inode, u64 start, u64 length, u64 logical, int repair_eb_io_failure(struct btrfs_root *root, struct extent_buffer *eb, int mirror_num) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 start = eb->start; unsigned long i, num_pages = num_extent_pages(eb->start, eb->len); int ret = 0; - if (root->fs_info->sb->s_flags & MS_RDONLY) + if (fs_info->sb->s_flags & MS_RDONLY) return -EROFS; for (i = 0; i < num_pages; i++) { struct page *p = eb->pages[i]; - ret = repair_io_failure(root->fs_info->btree_inode, start, + ret = repair_io_failure(fs_info->btree_inode, start, PAGE_SIZE, start, p, start - page_offset(p), mirror_num); if (ret) @@ -2341,6 +2342,7 @@ struct bio *btrfs_create_repair_bio(struct inode *inode, struct bio *failed_bio, struct page *page, int pg_offset, int icsum, bio_end_io_t *endio_func, void *data) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct bio *bio; struct btrfs_io_bio *btrfs_failed_bio; struct btrfs_io_bio *btrfs_bio; @@ -2351,13 +2353,12 @@ struct bio *btrfs_create_repair_bio(struct inode *inode, struct bio *failed_bio, bio->bi_end_io = endio_func; bio->bi_iter.bi_sector = failrec->logical >> 9; - bio->bi_bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev; + bio->bi_bdev = fs_info->fs_devices->latest_bdev; bio->bi_iter.bi_size = 0; bio->bi_private = data; btrfs_failed_bio = btrfs_io_bio(failed_bio); if (btrfs_failed_bio->csum) { - struct btrfs_fs_info *fs_info = BTRFS_I(inode)->root->fs_info; u16 csum_size = btrfs_super_csum_size(fs_info->super_copy); btrfs_bio = btrfs_io_bio(bio); @@ -2476,6 +2477,8 @@ static void end_bio_extent_writepage(struct bio *bio) bio_for_each_segment_all(bvec, bio, i) { struct page *page = bvec->bv_page; + struct inode *inode = page->mapping->host; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); /* We always issue full-page reads, but if some block * in a page fails to read, blk_update_request() will @@ -2484,11 +2487,11 @@ static void end_bio_extent_writepage(struct bio *bio) * if they don't add up to a full page. */ if (bvec->bv_offset || bvec->bv_len != PAGE_SIZE) { if (bvec->bv_offset + bvec->bv_len != PAGE_SIZE) - btrfs_err(BTRFS_I(page->mapping->host)->root->fs_info, + btrfs_err(fs_info, "partial page write in btrfs with offset %u and length %u", bvec->bv_offset, bvec->bv_len); else - btrfs_info(BTRFS_I(page->mapping->host)->root->fs_info, + btrfs_info(fs_info, "incomplete page write in btrfs with offset %u and length %u", bvec->bv_offset, bvec->bv_len); } @@ -3743,7 +3746,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb, if (btrfs_header_level(eb) > 0) { end = btrfs_node_key_ptr_offset(nritems); - memset_extent_buffer(eb, 0, end, eb->len - end); + memzero_extent_buffer(eb, end, eb->len - end); } else { /* * leaf: @@ -3752,7 +3755,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb, start = btrfs_item_nr_offset(nritems); end = btrfs_leaf_data(eb) + leaf_data_end(fs_info->tree_root, eb); - memset_extent_buffer(eb, 0, start, end - start); + memzero_extent_buffer(eb, start, end - start); } for (i = 0; i < num_pages; i++) { @@ -4343,7 +4346,7 @@ static struct extent_map *get_extent_skip_holes(struct inode *inode, u64 last, get_extent_t *get_extent) { - u64 sectorsize = BTRFS_I(inode)->root->sectorsize; + u64 sectorsize = btrfs_inode_sectorsize(inode); struct extent_map *em; u64 len; @@ -4404,8 +4407,8 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, return -ENOMEM; path->leave_spinning = 1; - start = round_down(start, BTRFS_I(inode)->root->sectorsize); - len = round_up(max, BTRFS_I(inode)->root->sectorsize) - start; + start = round_down(start, btrfs_inode_sectorsize(inode)); + len = round_up(max, btrfs_inode_sectorsize(inode)) - start; /* * lookup the last file extent. We're not using i_size here @@ -4720,9 +4723,9 @@ struct extent_buffer *btrfs_clone_extent_buffer(struct extent_buffer *src) WARN_ON(PageDirty(p)); SetPageUptodate(p); new->pages[i] = p; + copy_page(page_address(p), page_address(src->pages[i])); } - copy_extent_buffer(new, src, 0, 0, src->len); set_bit(EXTENT_BUFFER_UPTODATE, &new->bflags); set_bit(EXTENT_BUFFER_DUMMY, &new->bflags); @@ -4760,21 +4763,9 @@ err: } struct extent_buffer *alloc_dummy_extent_buffer(struct btrfs_fs_info *fs_info, - u64 start, u32 nodesize) + u64 start) { - unsigned long len; - - if (!fs_info) { - /* - * Called only from tests that don't always have a fs_info - * available - */ - len = nodesize; - } else { - len = fs_info->tree_root->nodesize; - } - - return __alloc_dummy_extent_buffer(fs_info, start, len); + return __alloc_dummy_extent_buffer(fs_info, start, fs_info->nodesize); } static void check_buffer_tree_ref(struct extent_buffer *eb) @@ -4865,7 +4856,7 @@ struct extent_buffer *find_extent_buffer(struct btrfs_fs_info *fs_info, #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS struct extent_buffer *alloc_test_extent_buffer(struct btrfs_fs_info *fs_info, - u64 start, u32 nodesize) + u64 start) { struct extent_buffer *eb, *exists = NULL; int ret; @@ -4873,7 +4864,7 @@ struct extent_buffer *alloc_test_extent_buffer(struct btrfs_fs_info *fs_info, eb = find_extent_buffer(fs_info, start); if (eb) return eb; - eb = alloc_dummy_extent_buffer(fs_info, start, nodesize); + eb = alloc_dummy_extent_buffer(fs_info, start); if (!eb) return NULL; eb->fs_info = fs_info; @@ -4913,7 +4904,7 @@ free_eb: struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info, u64 start) { - unsigned long len = fs_info->tree_root->nodesize; + unsigned long len = fs_info->nodesize; unsigned long num_pages = num_extent_pages(start, len); unsigned long i; unsigned long index = start >> PAGE_SHIFT; @@ -4924,7 +4915,7 @@ struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info, int uptodate = 1; int ret; - if (!IS_ALIGNED(start, fs_info->tree_root->sectorsize)) { + if (!IS_ALIGNED(start, fs_info->sectorsize)) { btrfs_err(fs_info, "bad tree block start %llu", start); return ERR_PTR(-EINVAL); } @@ -5465,6 +5456,27 @@ int memcmp_extent_buffer(struct extent_buffer *eb, const void *ptrv, return ret; } +void write_extent_buffer_chunk_tree_uuid(struct extent_buffer *eb, + const void *srcv) +{ + char *kaddr; + + WARN_ON(!PageUptodate(eb->pages[0])); + kaddr = page_address(eb->pages[0]); + memcpy(kaddr + offsetof(struct btrfs_header, chunk_tree_uuid), srcv, + BTRFS_FSID_SIZE); +} + +void write_extent_buffer_fsid(struct extent_buffer *eb, const void *srcv) +{ + char *kaddr; + + WARN_ON(!PageUptodate(eb->pages[0])); + kaddr = page_address(eb->pages[0]); + memcpy(kaddr + offsetof(struct btrfs_header, fsid), srcv, + BTRFS_FSID_SIZE); +} + void write_extent_buffer(struct extent_buffer *eb, const void *srcv, unsigned long start, unsigned long len) { @@ -5496,8 +5508,8 @@ void write_extent_buffer(struct extent_buffer *eb, const void *srcv, } } -void memset_extent_buffer(struct extent_buffer *eb, char c, - unsigned long start, unsigned long len) +void memzero_extent_buffer(struct extent_buffer *eb, unsigned long start, + unsigned long len) { size_t cur; size_t offset; @@ -5517,7 +5529,7 @@ void memset_extent_buffer(struct extent_buffer *eb, char c, cur = min(len, PAGE_SIZE - offset); kaddr = page_address(page); - memset(kaddr + offset, c, cur); + memset(kaddr + offset, 0, cur); len -= cur; offset = 0; @@ -5525,6 +5537,20 @@ void memset_extent_buffer(struct extent_buffer *eb, char c, } } +void copy_extent_buffer_full(struct extent_buffer *dst, + struct extent_buffer *src) +{ + int i; + unsigned num_pages; + + ASSERT(dst->len == src->len); + + num_pages = num_extent_pages(dst->start, dst->len); + for (i = 0; i < num_pages; i++) + copy_page(page_address(dst->pages[i]), + page_address(src->pages[i])); +} + void copy_extent_buffer(struct extent_buffer *dst, struct extent_buffer *src, unsigned long dst_offset, unsigned long src_offset, unsigned long len) @@ -5766,6 +5792,7 @@ static void copy_pages(struct page *dst_page, struct page *src_page, void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset, unsigned long src_offset, unsigned long len) { + struct btrfs_fs_info *fs_info = dst->fs_info; size_t cur; size_t dst_off_in_page; size_t src_off_in_page; @@ -5774,13 +5801,13 @@ void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset, unsigned long src_i; if (src_offset + len > dst->len) { - btrfs_err(dst->fs_info, + btrfs_err(fs_info, "memmove bogus src_offset %lu move len %lu dst len %lu", src_offset, len, dst->len); BUG_ON(1); } if (dst_offset + len > dst->len) { - btrfs_err(dst->fs_info, + btrfs_err(fs_info, "memmove bogus dst_offset %lu move len %lu dst len %lu", dst_offset, len, dst->len); BUG_ON(1); @@ -5812,6 +5839,7 @@ void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset, void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset, unsigned long src_offset, unsigned long len) { + struct btrfs_fs_info *fs_info = dst->fs_info; size_t cur; size_t dst_off_in_page; size_t src_off_in_page; @@ -5822,13 +5850,13 @@ void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset, unsigned long src_i; if (src_offset + len > dst->len) { - btrfs_err(dst->fs_info, + btrfs_err(fs_info, "memmove bogus src_offset %lu move len %lu len %lu", src_offset, len, dst->len); BUG_ON(1); } if (dst_offset + len > dst->len) { - btrfs_err(dst->fs_info, + btrfs_err(fs_info, "memmove bogus dst_offset %lu move len %lu len %lu", dst_offset, len, dst->len); BUG_ON(1);