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-rw-r--r--fs/overlayfs/readdir.c43
1 files changed, 21 insertions, 22 deletions
diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c
index 481e44873b65..dfef6ca53dfe 100644
--- a/fs/overlayfs/readdir.c
+++ b/fs/overlayfs/readdir.c
@@ -261,35 +261,34 @@ static void ovl_dir_reset(struct file *file)
261static int ovl_dir_read_merged(struct dentry *dentry, struct list_head *list) 261static int ovl_dir_read_merged(struct dentry *dentry, struct list_head *list)
262{ 262{
263 int err; 263 int err;
264 struct path lowerpath; 264 struct path realpath;
265 struct path upperpath;
266 struct ovl_readdir_data rdd = { 265 struct ovl_readdir_data rdd = {
267 .ctx.actor = ovl_fill_merge, 266 .ctx.actor = ovl_fill_merge,
268 .list = list, 267 .list = list,
269 .root = RB_ROOT, 268 .root = RB_ROOT,
270 .is_merge = false, 269 .is_merge = false,
271 }; 270 };
272 271 int idx, next;
273 ovl_path_lower(dentry, &lowerpath); 272
274 ovl_path_upper(dentry, &upperpath); 273 for (idx = 0; idx != -1; idx = next) {
275 274 next = ovl_path_next(idx, dentry, &realpath);
276 if (upperpath.dentry) { 275
277 rdd.dir = upperpath.dentry; 276 if (next != -1) {
278 err = ovl_dir_read(&upperpath, &rdd); 277 rdd.dir = realpath.dentry;
279 if (err) 278 err = ovl_dir_read(&realpath, &rdd);
280 goto out; 279 if (err)
281 } 280 break;
282 if (lowerpath.dentry) { 281 } else {
283 /* 282 /*
284 * Insert lowerpath entries before upperpath ones, this allows 283 * Insert lowest layer entries before upper ones, this
285 * offsets to be reasonably constant 284 * allows offsets to be reasonably constant
286 */ 285 */
287 list_add(&rdd.middle, rdd.list); 286 list_add(&rdd.middle, rdd.list);
288 rdd.is_merge = true; 287 rdd.is_merge = true;
289 err = ovl_dir_read(&lowerpath, &rdd); 288 err = ovl_dir_read(&realpath, &rdd);
290 list_del(&rdd.middle); 289 list_del(&rdd.middle);
290 }
291 } 291 }
292out:
293 return err; 292 return err;
294} 293}
295 294