linux-kernel - Re: [PATCH 0/2] Add mru cache for inode to zone allocation mapping

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Message-Id: <174724384212.752716.9754697485095664382.b4-ty@kernel.org>
Date: Wed, 14 May 2025 19:30:42 +0200
From: Carlos Maiolino <cem@...nel.org>
To: linux-xfs@...r.kernel.org, Hans Holmberg <Hans.Holmberg@....com>
Cc: Dave Chinner <david@...morbit.com>, 
 "Darrick J . Wong" <djwong@...nel.org>, hch <hch@....de>, 
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] Add mru cache for inode to zone allocation mapping

On Wed, 14 May 2025 10:50:36 +0000, Hans Holmberg wrote:
> These patches cleans up the xfs mru code a bit and adds a cache for
> keeping track of which zone an inode allocated data to last. Placing
> file data in the same zone helps reduce garbage collection overhead,
> and with this patch we add support per-file co-location for random
> writes.
> 
> While I was initially concerned by adding overhead to the allocation
> path, the cache actually reduces it as as we avoid going through the
> zone allocation algorithm for every random write.
> 
> [...]

Applied to for-next, thanks!

[1/2] xfs: free the item in xfs_mru_cache_insert on failure
      commit: 70b95cb86513d7f6d084ddc8e961a1cab9022e14
[2/2] xfs: add inode to zone caching for data placement
      commit: f3e2e53823b98d55da46ea72d32ac18bd7709c33

Best regards,
-- 
Carlos Maiolino <cem@...nel.org>