1 files changed, 0 insertions, 72 deletions
diff --git a/fs/ntfs3/attrib.c b/fs/ntfs3/attrib.c
index e946f75eb540..eced9013a881 100644
--- a/fs/ntfs3/attrib.c
+++ b/fs/ntfs3/attrib.c
@@ -2605,75 +2605,3 @@ int attr_force_nonresident(struct ntfs_inode *ni)
 
 	return err;
 }
-
-/*
- * Change the compression of data attribute
- */
-int attr_set_compress(struct ntfs_inode *ni, bool compr)
-{
-	struct ATTRIB *attr;
-	struct mft_inode *mi;
-
-	attr = ni_find_attr(ni, NULL, NULL, ATTR_DATA, NULL, 0, NULL, &mi);
-	if (!attr)
-		return -ENOENT;
-
-	if (is_attr_compressed(attr) == !!compr) {
-		/* Already required compressed state. */
-		return 0;
-	}
-
-	if (attr->non_res) {
-		u16 run_off;
-		u32 run_size;
-		char *run;
-
-		if (attr->nres.data_size) {
-			/*
-			 * There are rare cases when it possible to change
-			 * compress state without big changes.
-			 * TODO: Process these cases.
-			 */
-			return -EOPNOTSUPP;
-		}
-
-		run_off = le16_to_cpu(attr->nres.run_off);
-		run_size = le32_to_cpu(attr->size) - run_off;
-		run = Add2Ptr(attr, run_off);
-
-		if (!compr) {
-			/* remove field 'attr->nres.total_size'. */
-			memmove(run - 8, run, run_size);
-			run_off -= 8;
-		}
-
-		if (!mi_resize_attr(mi, attr, compr ? +8 : -8)) {
-			/*
-			 * Ignore rare case when there are no 8 bytes in record with attr.
-			 * TODO: split attribute.
-			 */
-			return -EOPNOTSUPP;
-		}
-
-		if (compr) {
-			/* Make a gap for 'attr->nres.total_size'. */
-			memmove(run + 8, run, run_size);
-			run_off += 8;
-			attr->nres.total_size = attr->nres.alloc_size;
-		}
-		attr->nres.run_off = cpu_to_le16(run_off);
-	}
-
-	/* Update attribute flags. */
-	if (compr) {
-		attr->flags &= ~ATTR_FLAG_SPARSED;
-		attr->flags |= ATTR_FLAG_COMPRESSED;
-		attr->nres.c_unit = NTFS_LZNT_CUNIT;
-	} else {
-		attr->flags &= ~ATTR_FLAG_COMPRESSED;
-		attr->nres.c_unit = 0;
-	}
-	mi->dirty = true;
-
-	return 0;
-}