diff options
Diffstat (limited to 'fs/ocfs2')
| -rw-r--r-- | fs/ocfs2/file.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 4c7a4d8ed32c..3346e5b199d5 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1422,12 +1422,14 @@ static int ocfs2_remove_inode_range(struct inode *inode, struct buffer_head *di_bh, u64 byte_start, u64 byte_len) { - int ret = 0; + int ret = 0, flags = 0; u32 trunc_start, trunc_len, cpos, phys_cpos, alloc_size; struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); struct ocfs2_cached_dealloc_ctxt dealloc; struct address_space *mapping = inode->i_mapping; struct ocfs2_extent_tree et; + struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data; + u64 refcount_loc = le64_to_cpu(di->i_refcount_loc); ocfs2_init_dinode_extent_tree(&et, INODE_CACHE(inode), di_bh); ocfs2_init_dealloc_ctxt(&dealloc); @@ -1453,6 +1455,27 @@ static int ocfs2_remove_inode_range(struct inode *inode, goto out; } + /* + * For reflinks, we may need to CoW 2 clusters which might be + * partially zero'd later, if hole's start and end offset were + * within one cluster(means is not exactly aligned to clustersize). + */ + + if (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL) { + + ret = ocfs2_cow_file_pos(inode, di_bh, byte_start); + if (ret) { + mlog_errno(ret); + goto out; + } + + ret = ocfs2_cow_file_pos(inode, di_bh, byte_start + byte_len); + if (ret) { + mlog_errno(ret); + goto out; + } + } + trunc_start = ocfs2_clusters_for_bytes(osb->sb, byte_start); trunc_len = (byte_start + byte_len) >> osb->s_clustersize_bits; if (trunc_len >= trunc_start) @@ -1474,7 +1497,7 @@ static int ocfs2_remove_inode_range(struct inode *inode, cpos = trunc_start; while (trunc_len) { ret = ocfs2_get_clusters(inode, cpos, &phys_cpos, - &alloc_size, NULL); + &alloc_size, &flags); if (ret) { mlog_errno(ret); goto out; @@ -1487,7 +1510,8 @@ static int ocfs2_remove_inode_range(struct inode *inode, if (phys_cpos != 0) { ret = ocfs2_remove_btree_range(inode, &et, cpos, phys_cpos, alloc_size, - 0, &dealloc, 0); + flags, &dealloc, + refcount_loc); if (ret) { mlog_errno(ret); goto out; |