Re: [PATCH 1/5] xfs: Remove kmem_zone_alloc() usage

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On Wed, Jul 22, 2020 at 11:05:14AM +0200, Carlos Maiolino wrote:
> Use kmem_cache_alloc() directly.
> 
> All kmem_zone_alloc() users pass 0 as flags, which are translated into:
> GFP_KERNEL | __GFP_NOWARN, and kmem_zone_alloc() loops forever until the
> allocation succeeds.
> 
> We can use __GFP_NOFAIL to tell the allocator to loop forever rather
> than doing it ourself, and because the allocation will never fail, we do
> not need to use __GFP_NOWARN anymore. Hence, all callers can be
> converted to use GFP_KERNEL | __GFP_NOFAIL
> 
> Signed-off-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
> ---
> 
> Changelog:
> 	V2:
> 		- Wire up xfs_inode_alloc to use __GFP_NOFAIL
> 		  if it's called inside a transaction
> 		- Rewrite changelog in a more decent way.
> 	V3:
> 		- Use __GFP_NOFAIL unconditionally in xfs_inode_alloc(),
> 		  use of PF_FSTRANS will be added when the patch re-adding
> 		  it is moved to mainline.
> 
>  fs/xfs/libxfs/xfs_alloc.c |  3 ++-
>  fs/xfs/libxfs/xfs_bmap.c  |  3 ++-
>  fs/xfs/xfs_icache.c       | 10 ++--------
>  3 files changed, 6 insertions(+), 10 deletions(-)

Looks fine with or without the comment as christoph noted.

Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>

-- 
Dave Chinner
david@xxxxxxxxxxxxx



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