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authorTrond Myklebust <trond.myklebust@hammerspace.com>2021-12-15 16:38:15 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-02-01 17:29:12 +0100
commit498286ab591ffee4bc788acd5b94dfb23050d0eb (patch)
tree762176da7cec7710cac54d9d43db63d3f2eec930 /fs
parent930767717902381d5362d69d7d0436514c576e46 (diff)
NFS: Ensure the server has an up to date ctime before hardlinking
[ 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>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/dir.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 0b1b646fe5b7..2ef295b83fe5 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -2397,6 +2397,8 @@ 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) {
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));