On Mon, Nov 24, 2014 at 12:22:16PM -0500, Theodore Ts'o wrote: > On Mon, Nov 24, 2014 at 05:38:30PM +0100, David Sterba wrote: > > > > It is necessary and the whole .update_time callback was added > > intentionally, see commits > > > > c3b2da314834499f34cba94f7053e55f6d6f92d8 > > fs: introduce inode operation ->update_time > > > > e41f941a23115e84a8550b3d901a13a14b2edc2f > > Btrfs: move over to use ->update_time > > Being able to signal an error if the time update fails is still > possible even if we drop update_time(), because the new write_time() > function will return an error. Fine, means your change does not break the current status. I was providing the more complete list of related commits. > > 2bc5565286121d2a77ccd728eb3484dff2035b58 > > Btrfs: don't update atime on RO subvolumes > > Yes, but this doesn't answer my question about other places where the > VFS is only checking MS_RDONLY and MNT_READONLY besides just > update_atime(). Maybe we should be exposing an "is_readonly(inode)" > inode operations function to address this? Yes, if this is a lightweight check then it'd would allow to remove the filesystem-specific checks. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
