From: Trond Myklebust trond.myklebust@hammerspace.com
[ Upstream commit 204975036b34f55237bc44c8a302a88468ef21b5 ]
Creating a hard link is required by POSIX to update the file ctime, so ensure that the file data is synced to disk so that we don't clobber the updated ctime by writing back after creating the hard link.
Fixes: 9f7682728728 ("NFS: Move the delegation return down into nfs4_proc_link()") Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Anna Schumaker Anna.Schumaker@Netapp.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/nfs/dir.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -2400,6 +2400,8 @@ nfs_link(struct dentry *old_dentry, stru
trace_nfs_link_enter(inode, dir, dentry); d_drop(dentry); + if (S_ISREG(inode->i_mode)) + nfs_sync_inode(inode); error = NFS_PROTO(dir)->link(inode, dir, &dentry->d_name); if (error == 0) { ihold(inode);