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-rw-r--r--fs/nfsd/vfs.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 98ab55ba3ced..edf050766e57 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -470,7 +470,15 @@ static int __nfsd_setattr(struct dentry *dentry, struct iattr *iap)
if (!iap->ia_valid)
return 0;
- iap->ia_valid |= ATTR_CTIME;
+ /*
+ * If ATTR_DELEG is set, then this is an update from a client that
+ * holds a delegation. If this is an update for only the atime, the
+ * ctime should not be changed. If the update contains the mtime
+ * too, then ATTR_CTIME should already be set.
+ */
+ if (!(iap->ia_valid & ATTR_DELEG))
+ iap->ia_valid |= ATTR_CTIME;
+
return notify_change(&nop_mnt_idmap, dentry, iap, NULL);
}