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From: Chao Yu <chao@kernel.org>
To: jiucheng.xu@amlogic.com, Jaegeuk Kim <jaegeuk@kernel.org>
Cc: chao@kernel.org, linux-f2fs-devel@lists.sourceforge.net,
	linux-kernel@vger.kernel.org, tuan.zhang@amlogic.com,
	jianxin.pan@amlogic.com
Subject: Re: [PATCH v2] f2fs: Use mapping->gfp_mask to get file cache for writing
Date: Fri, 10 Oct 2025 19:22:19 +0800	[thread overview]
Message-ID: <1a46c78e-86b2-4e26-971f-c7716143f6af@kernel.org> (raw)
In-Reply-To: <20251010-origin-dev-v2-1-952a3c98cd9c@amlogic.com>

On 10/10/25 18:45, Jiucheng Xu via B4 Relay wrote:
> From: Jiucheng Xu <jiucheng.xu@amlogic.com>
> 
> On 32-bit architectures, when GFP_NOFS is used, the file cache for write
> operations cannot be allocated from the highmem and CMA.
> 
> Since mapping->gfp_mask is set to GFP_HIGHUSER_MOVABLE during inode
> allocation, using mapping_gfp_mask(mapping) as the GFP flag of getting file
> cache for writing is more efficient for 32-bit architectures.
> 
> Additionally, use FGP_NOFS to avoid potential deadlock issues caused by
> GFP_FS in GFP_HIGHUSER_MOVABLE
> 
> Signed-off-by: Jiucheng Xu <jiucheng.xu@amlogic.com>

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

Thanks,

  reply	other threads:[~2025-10-10 11:22 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-10 10:45 [PATCH v2] f2fs: Use mapping->gfp_mask to get file cache for writing Jiucheng Xu via B4 Relay
2025-10-10 11:22 ` Chao Yu [this message]
2025-11-11 22:50 ` [f2fs-dev] " patchwork-bot+f2fs

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