On Wed, Apr 16, 2014 at 04:04:59PM +1000, Dave Chinner wrote:
> On Wed, Apr 16, 2014 at 02:03:36PM +1000, NeilBrown wrote:
> > xfs_file_*_read holds an inode lock while calling a generic 'read'
> > function.  These functions perform read-ahead and are quite likely to
> > allocate memory.
> 
> Yes, that's what reading data from disk requires.
> 
> > So set PF_FSTRANS to ensure they avoid __GFP_FS and so don't recurse
> > into a filesystem to free memory.
> 
> We already have that protection via the

Oops, stray paste. Ignore that comment.

-Dave.
-- 
Dave Chinner
da...@fromorbit.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to