For broken hardlinks, we do not return lower st_ino, so we should
also not return lower pseudo st_dev.
Fixes: a0c5ad307ac0 ("ovl: relax same fs constraint for constant st_ino")
Cc: <stable@xxxxxxxxxxxxxxx> #v4.15
Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx>
---
fs/overlayfs/inode.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
Miklos,
This fixes a very obvious (to me) bug.
I have a WIP unionmount-testsuite check for this.
Will sort it out and push it to my tree later.
Also pushed ovl-xino branch rebased on this bug fix.
Thanks,
Amir.
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index c95336611f83..29069f29b3a6 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -118,13 +118,10 @@ int ovl_getattr(const struct path *path, struct kstat *stat,
*/
if (ovl_test_flag(OVL_INDEX, d_inode(dentry)) ||
(!ovl_verify_lower(dentry->d_sb) &&
- (is_dir || lowerstat.nlink == 1)))
+ (is_dir || lowerstat.nlink == 1))) {
stat->ino = lowerstat.ino;
-
- if (samefs)
- WARN_ON_ONCE(stat->dev != lowerstat.dev);
- else
stat->dev = ovl_get_pseudo_dev(dentry);
+ }
}
if (samefs) {
/*
--
2.7.4
--
To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
