linux-kernel - Re: [PATCH 1/2] f2fs: use vmalloc instead of kvmalloc in .init_{,de}compress

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Message-ID: <aCLgPLUiFsiCzSBK@infradead.org>
Date: Mon, 12 May 2025 23:01:32 -0700
From: Christoph Hellwig <hch@...radead.org>
To: Chao Yu <chao@...nel.org>
Cc: jaegeuk@...nel.org, linux-f2fs-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH 1/2] f2fs: use vmalloc instead of kvmalloc in
 .init_{,de}compress_ctx

On Tue, May 13, 2025 at 01:57:20PM +0800, Chao Yu wrote:
> .init_{,de}compress_ctx uses kvmalloc() to alloc memory, it will try
> to allocate physically continuous page first, it may cause more memory
> allocation pressure, let's use vmalloc instead to mitigate it.

Shouldn't this be handled in kvmalloc instead of working around it in
callers?