Lower files may be shared in overlayfs so strictly checking write
perssmion on lower file will cause interferes between different
overlayfs instances.
Signed-off-by: Chengguang Xu <cgxu519@xxxxxxxxxxxx>
---
fs/overlayfs/inode.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 28c71978eb2e..17d1add0af1a 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -31,12 +31,6 @@ int ovl_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
goto out;
if (attr->ia_valid & ATTR_SIZE) {
- struct inode *realinode = d_inode(ovl_dentry_real(dentry));
-
- err = -ETXTBSY;
- if (atomic_read(&realinode->i_writecount) < 0)
- goto out_drop_write;
-
/* Truncate should trigger data copy up as well */
full_copy_up = true;
}
--
2.27.0
