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author | Jeff Mahoney <jeffm@suse.com> | 2016-06-15 09:22:56 -0400 |
---|---|---|
committer | David Sterba <dsterba@suse.com> | 2016-12-06 16:06:58 +0100 |
commit | da17066c40472c2d6a1aab7bb0090c3d285531c9 (patch) | |
tree | f51910799ffea3bfe5af34d009a2967b9e99e6ad /fs/btrfs/file-item.c | |
parent | f15376df0dc2b632eb689793a73d4adba8404987 (diff) | |
download | linux-stable-da17066c40472c2d6a1aab7bb0090c3d285531c9.tar.gz linux-stable-da17066c40472c2d6a1aab7bb0090c3d285531c9.tar.bz2 linux-stable-da17066c40472c2d6a1aab7bb0090c3d285531c9.zip |
btrfs: pull node/sector/stripe sizes out of root and into fs_info
We track the node sizes per-root, but they never vary from the values
in the superblock. This patch messes with the 80-column style a bit,
but subsequent patches to factor out root->fs_info into a convenience
variable fix it up again.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/file-item.c')
-rw-r--r-- | fs/btrfs/file-item.c | 59 |
1 files changed, 31 insertions, 28 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 41c1145cbce1..5349e8e9bbaa 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -34,9 +34,9 @@ #define MAX_CSUM_ITEMS(r, size) (min_t(u32, __MAX_CSUM_ITEMS(r, size), \ PAGE_SIZE)) -#define MAX_ORDERED_SUM_BYTES(r) ((PAGE_SIZE - \ +#define MAX_ORDERED_SUM_BYTES(fs_info) ((PAGE_SIZE - \ sizeof(struct btrfs_ordered_sum)) / \ - sizeof(u32) * (r)->sectorsize) + sizeof(u32) * (fs_info)->sectorsize) int btrfs_insert_file_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root, @@ -249,7 +249,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root, if (BTRFS_I(inode)->root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID) { set_extent_bits(io_tree, offset, - offset + root->sectorsize - 1, + offset + root->fs_info->sectorsize - 1, EXTENT_NODATASUM); } else { btrfs_info_rl(BTRFS_I(inode)->root->fs_info, @@ -268,7 +268,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root, path->slots[0]); item_last_offset = item_start_offset + (item_size / csum_size) * - root->sectorsize; + root->fs_info->sectorsize; item = btrfs_item_ptr(path->nodes[0], path->slots[0], struct btrfs_csum_item); } @@ -277,7 +277,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root, * a single leaf so it will also fit inside a u32 */ diff = disk_bytenr - item_start_offset; - diff = diff / root->sectorsize; + diff = diff / root->fs_info->sectorsize; diff = diff * csum_size; count = min_t(int, nblocks, (item_last_offset - disk_bytenr) >> inode->i_sb->s_blocksize_bits); @@ -289,9 +289,9 @@ found: nblocks -= count; next: while (count--) { - disk_bytenr += root->sectorsize; - offset += root->sectorsize; - page_bytes_left -= root->sectorsize; + disk_bytenr += root->fs_info->sectorsize; + offset += root->fs_info->sectorsize; + page_bytes_left -= root->fs_info->sectorsize; if (!page_bytes_left) break; /* move to next bio */ } @@ -329,8 +329,8 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, u64 csum_end; u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy); - ASSERT(IS_ALIGNED(start, root->sectorsize) && - IS_ALIGNED(end + 1, root->sectorsize)); + ASSERT(IS_ALIGNED(start, root->fs_info->sectorsize) && + IS_ALIGNED(end + 1, root->fs_info->sectorsize)); path = btrfs_alloc_path(); if (!path) @@ -383,7 +383,7 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, start = key.offset; size = btrfs_item_size_nr(leaf, path->slots[0]); - csum_end = key.offset + (size / csum_size) * root->sectorsize; + csum_end = key.offset + (size / csum_size) * root->fs_info->sectorsize; if (csum_end <= start) { path->slots[0]++; continue; @@ -394,8 +394,9 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, struct btrfs_csum_item); while (start < csum_end) { size = min_t(size_t, csum_end - start, - MAX_ORDERED_SUM_BYTES(root)); - sums = kzalloc(btrfs_ordered_sum_size(root, size), + MAX_ORDERED_SUM_BYTES(root->fs_info)); + sums = kzalloc(btrfs_ordered_sum_size(root->fs_info, + size), GFP_NOFS); if (!sums) { ret = -ENOMEM; @@ -415,7 +416,7 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, ((unsigned long)item) + offset, csum_size * size); - start += root->sectorsize * size; + start += root->fs_info->sectorsize * size; list_add_tail(&sums->list, &tmplist); } path->slots[0]++; @@ -448,7 +449,8 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode, u64 offset; WARN_ON(bio->bi_vcnt <= 0); - sums = kzalloc(btrfs_ordered_sum_size(root, bio->bi_iter.bi_size), + sums = kzalloc(btrfs_ordered_sum_size(root->fs_info, + bio->bi_iter.bi_size), GFP_NOFS); if (!sums) return -ENOMEM; @@ -476,7 +478,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode, data = kmap_atomic(bvec->bv_page); nr_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info, - bvec->bv_len + root->sectorsize + bvec->bv_len + root->fs_info->sectorsize - 1); for (i = 0; i < nr_sectors; i++) { @@ -492,7 +494,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode, bytes_left = bio->bi_iter.bi_size - total_bytes; - sums = kzalloc(btrfs_ordered_sum_size(root, bytes_left), + sums = kzalloc(btrfs_ordered_sum_size(root->fs_info, bytes_left), GFP_NOFS); BUG_ON(!sums); /* -ENOMEM */ sums->len = bytes_left; @@ -509,15 +511,15 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode, sums->sums[index] = ~(u32)0; sums->sums[index] = btrfs_csum_data(data + bvec->bv_offset - + (i * root->sectorsize), + + (i * root->fs_info->sectorsize), sums->sums[index], - root->sectorsize); + root->fs_info->sectorsize); btrfs_csum_final(sums->sums[index], (char *)(sums->sums + index)); index++; - offset += root->sectorsize; - this_sum_bytes += root->sectorsize; - total_bytes += root->sectorsize; + offset += root->fs_info->sectorsize; + this_sum_bytes += root->fs_info->sectorsize; + total_bytes += root->fs_info->sectorsize; } kunmap_atomic(data); @@ -757,7 +759,7 @@ again: leaf = path->nodes[0]; item_size = btrfs_item_size_nr(leaf, path->slots[0]); if ((item_size / csum_size) >= - MAX_CSUM_ITEMS(root, csum_size)) { + MAX_CSUM_ITEMS(root->fs_info, csum_size)) { /* already at max size, make a new one */ goto insert; } @@ -807,7 +809,7 @@ again: if (found_key.type != BTRFS_EXTENT_CSUM_KEY || found_key.objectid != BTRFS_EXTENT_CSUM_OBJECTID || - csum_offset >= MAX_CSUM_ITEMS(root, csum_size)) { + csum_offset >= MAX_CSUM_ITEMS(root->fs_info, csum_size)) { goto insert; } @@ -830,7 +832,7 @@ again: extend_nr = max_t(int, 1, (int)tmp); diff = (csum_offset + extend_nr) * csum_size; - diff = min(diff, MAX_CSUM_ITEMS(root, csum_size) * csum_size); + diff = min(diff, MAX_CSUM_ITEMS(root->fs_info, csum_size) * csum_size); diff = diff - btrfs_item_size_nr(leaf, path->slots[0]); diff = min(free_space, diff); @@ -854,7 +856,7 @@ insert: root->fs_info->sb->s_blocksize_bits); tmp = max((u64)1, tmp); - tmp = min(tmp, (u64)MAX_CSUM_ITEMS(root, csum_size)); + tmp = min(tmp, (u64)MAX_CSUM_ITEMS(root->fs_info, csum_size)); ins_size = csum_size * tmp; } else { ins_size = csum_size; @@ -884,7 +886,7 @@ found: ins_size); ins_size /= csum_size; - total_bytes += ins_size * root->sectorsize; + total_bytes += ins_size * root->fs_info->sectorsize; index += ins_size; btrfs_mark_buffer_dirty(path->nodes[0]); @@ -927,7 +929,8 @@ void btrfs_extent_item_to_extent_map(struct inode *inode, } else if (type == BTRFS_FILE_EXTENT_INLINE) { size_t size; size = btrfs_file_extent_inline_len(leaf, slot, fi); - extent_end = ALIGN(extent_start + size, root->sectorsize); + extent_end = ALIGN(extent_start + size, + root->fs_info->sectorsize); } em->ram_bytes = btrfs_file_extent_ram_bytes(leaf, fi); |