On Wed, Sep 16, 2020 at 12:09:40PM +0530, Pradeep P V K wrote:
> Changes since V1:
> - Used memalloc_nofs_save() in all allocation paths of fuse daemons
> to avoid use __GFP_FS flag as per Matthew comments.
That's not how to use memalloc_nofs_save(). You call it when entering a
context in which any memory allocation would cause a deadlock. You don't
look for every place which allocates memory and wrap the memory allocation
calls in memalloc_nofs_save() because you're likely to miss one.
> static ssize_t fuse_dev_read(struct kiocb *iocb, struct iov_iter *to)
> {
> + ssize_t size;
> + unsigned nofs_flag;
This is almost certainly too low in the call stack.
