[PATCH 2/5] fs: Fix WARN_ON in inode_set_mask()

[Al Viro]

On Thu, Dec 04, 2014 at 02:27:36PM +0100, Jan Kara wrote:
> WARN_ON in inode_set_mask() warns if we don't clear all bits we are
> setting instead of reverse - warning when caller requests setting and
> clearing of the same bit.

WTF?  'mask' is "all bits we are asked to modify", 'flags' - "the values to
put into those bits".  Have you even looked at the callers, let alone
tested it?