linux-kernel - Re: [PATCH 1/2] erofs: Revert "erofs: fix kvcalloc() misuse with __GFP

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Message-ID: <69463ce0-2ee7-6676-017d-06f0edd47570@kernel.org>
Date:   Thu, 9 Mar 2023 22:30:16 +0800
From:   Chao Yu <chao@...nel.org>
To:     Gao Xiang <hsiangkao@...ux.alibaba.com>,
        linux-erofs@...ts.ozlabs.org
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] erofs: Revert "erofs: fix kvcalloc() misuse with
 __GFP_NOFAIL"



On 2023/3/9 13:31, Gao Xiang wrote:
> Let's revert commit 12724ba38992 ("erofs: fix kvcalloc() misuse with
> __GFP_NOFAIL") since kvmalloc() already supports __GFP_NOFAIL in commit
> a421ef303008 ("mm: allow !GFP_KERNEL allocations for kvmalloc").  So
> the original fix was wrong.
> 
> Actually there was some issue as [1] discussed, so before that mm fix
> is landed, the warn could still happen but applying this commit first
> will cause less.
> 
> [1] https://lore.kernel.org/r/20230305053035.1911-1-hsiangkao@linux.alibaba.com
> Fixes: 12724ba38992 ("erofs: fix kvcalloc() misuse with __GFP_NOFAIL")
> Signed-off-by: Gao Xiang <hsiangkao@...ux.alibaba.com>

Reviewed-by: Chao Yu <chao@...nel.org>

Thanks,