On Tue, 24 Oct 2023 12:03:18 +0200 Jan Kara <jack@xxxxxxx> wrote:
> On Mon 23-10-23 23:26:08, Hugh Dickins wrote:
> > Since mm-hotfixes-stable commit e509ad4d77e6 ("ext4: use bdev_getblk() to
> > avoid memory reclaim in readahead path") rightly replaced GFP_NOFAIL
> > allocations by GFP_NOWAIT allocations, I've occasionally been seeing
> > "page allocation failure: order:0" warnings under load: all with
> > ext4_sb_breadahead_unmovable() in the stack. I don't think those
> > warnings are of any interest: suppress them with __GFP_NOWARN.
> >
> > Fixes: e509ad4d77e6 ("ext4: use bdev_getblk() to avoid memory reclaim in readahead path")
> > Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx>
>
> Yeah, makes sense. Just the commit you mention isn't upstream yet so I'm
> not sure whether the commit hash is stable.
e509ad4d77e6 is actually in mm-stable so yes, the hash should be stable.
