From: Chengguang Xu <cgxu519@mykernel.net> mainline inclusion from mainline-v5.11-rc1 commit c11faf32599fee59f33896c8d59f9b3c17ca76fc category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4Y3CE?from=project-issue CVE: NA -------------------------------- In metacopy case, we should use ovl_inode_realdata() instead of ovl_inode_real() to get real inode which has data, so that we can get correct information of extentes in ->fiemap operation. Signed-off-by: Chengguang Xu <cgxu519@mykernel.net> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Signed-off-by: Zheng Liang <zhengliang6@huawei.com> Reviewed-by: Zhang Yi <yi.zhang@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> --- fs/overlayfs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 4fadafd8bdc1..d7a410d83743 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -478,7 +478,7 @@ static int ovl_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 start, u64 len) { int err; - struct inode *realinode = ovl_inode_real(inode); + struct inode *realinode = ovl_inode_realdata(inode); const struct cred *old_cred; if (!realinode->i_op->fiemap) -- 2.20.1