fs/ntfs3: Fixing work with sparse clusters
Simplify logic in ntfs_extend_initialized_size, ntfs_sparse_cluster and ntfs_fallocate. Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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ba11892889
Коммит
2f56a3f8d8
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@ -128,25 +128,9 @@ static int ntfs_extend_initialized_size(struct file *file,
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goto out;
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if (lcn == SPARSE_LCN) {
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loff_t vbo = (loff_t)vcn << bits;
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loff_t to = vbo + ((loff_t)clen << bits);
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if (to <= new_valid) {
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ni->i_valid = to;
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pos = to;
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goto next;
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}
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if (vbo < pos) {
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pos = vbo;
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} else {
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to = (new_valid >> bits) << bits;
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if (pos < to) {
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ni->i_valid = to;
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pos = to;
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goto next;
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}
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}
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pos = ((loff_t)clen + vcn) << bits;
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ni->i_valid = pos;
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goto next;
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}
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}
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@ -279,8 +263,9 @@ void ntfs_sparse_cluster(struct inode *inode, struct page *page0, CLST vcn,
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{
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struct address_space *mapping = inode->i_mapping;
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struct ntfs_sb_info *sbi = inode->i_sb->s_fs_info;
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u64 vbo = (u64)vcn << sbi->cluster_bits;
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u64 bytes = (u64)len << sbi->cluster_bits;
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u8 cluster_bits = sbi->cluster_bits;
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u64 vbo = (u64)vcn << cluster_bits;
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u64 bytes = (u64)len << cluster_bits;
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u32 blocksize = 1 << inode->i_blkbits;
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pgoff_t idx0 = page0 ? page0->index : -1;
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loff_t vbo_clst = vbo & sbi->cluster_mask_inv;
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@ -329,11 +314,10 @@ void ntfs_sparse_cluster(struct inode *inode, struct page *page0, CLST vcn,
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zero_user_segment(page, from, to);
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if (!partial) {
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if (!PageUptodate(page))
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SetPageUptodate(page);
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set_page_dirty(page);
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}
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if (!partial)
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SetPageUptodate(page);
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flush_dcache_page(page);
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set_page_dirty(page);
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if (idx != idx0) {
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unlock_page(page);
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@ -341,7 +325,6 @@ void ntfs_sparse_cluster(struct inode *inode, struct page *page0, CLST vcn,
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}
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cond_resched();
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}
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mark_inode_dirty(inode);
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}
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/*
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@ -588,11 +571,7 @@ static long ntfs_fallocate(struct file *file, int mode, loff_t vbo, loff_t len)
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u32 frame_size;
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loff_t mask, vbo_a, end_a, tmp;
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err = filemap_write_and_wait_range(mapping, vbo, end - 1);
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if (err)
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goto out;
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err = filemap_write_and_wait_range(mapping, end, LLONG_MAX);
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err = filemap_write_and_wait_range(mapping, vbo, LLONG_MAX);
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if (err)
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goto out;
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@ -693,7 +672,7 @@ static long ntfs_fallocate(struct file *file, int mode, loff_t vbo, loff_t len)
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goto out;
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if (is_supported_holes) {
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CLST vcn_v = ni->i_valid >> sbi->cluster_bits;
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CLST vcn_v = bytes_to_cluster(sbi, ni->i_valid);
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CLST vcn = vbo >> sbi->cluster_bits;
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CLST cend = bytes_to_cluster(sbi, end);
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CLST lcn, clen;
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@ -646,7 +646,12 @@ static noinline int ntfs_get_block_vbo(struct inode *inode, u64 vbo,
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bh->b_size = block_size;
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off = vbo & (PAGE_SIZE - 1);
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set_bh_page(bh, page, off);
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ll_rw_block(REQ_OP_READ, 1, &bh);
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lock_buffer(bh);
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bh->b_end_io = end_buffer_read_sync;
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get_bh(bh);
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submit_bh(REQ_OP_READ, bh);
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wait_on_buffer(bh);
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if (!buffer_uptodate(bh)) {
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err = -EIO;
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