From: Trond Myklebust trond.myklebust@hammerspace.com
stable inclusion from stable-v5.10.96 commit 666f6ab882ea1953e07ace36d022339beb8b3b34 bugzilla: https://gitee.com/openeuler/kernel/issues/I55NWB
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ 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 Signed-off-by: Yu Liao liaoyu15@huawei.com Reviewed-by: Wei Li liwei391@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- fs/nfs/dir.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 8428e4135b0d..97eb30043192 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -2192,6 +2192,8 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
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);