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-rw-r--r--fs/inode.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/inode.c b/fs/inode.c
index e171f7b5f9e4..9cef4e16aeda 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1619,6 +1619,13 @@ bool atime_needs_update(const struct path *path, struct inode *inode)
if (inode->i_flags & S_NOATIME)
return false;
+
+ /* Atime updates will likely cause i_uid and i_gid to be written
+ * back improprely if their true value is unknown to the vfs.
+ */
+ if (HAS_UNMAPPED_ID(inode))
+ return false;
+
if (IS_NOATIME(inode))
return false;
if ((inode->i_sb->s_flags & MS_NODIRATIME) && S_ISDIR(inode->i_mode))