From: Chao Yu <chao@kernel.org>
To: Gao Xiang <hsiangkao@linux.alibaba.com>, linux-erofs@lists.ozlabs.org
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 7/8] erofs: adapt folios for z_erofs_readahead()
Date: Wed, 23 Aug 2023 23:22:59 +0800 [thread overview]
Message-ID: <4994e087-47cc-6b32-1daf-abf7026bdca4@kernel.org> (raw)
In-Reply-To: <20230817082813.81180-7-hsiangkao@linux.alibaba.com>
On 2023/8/17 16:28, Gao Xiang wrote:
> It's a straight-forward conversion except that readahead_folio()
> will do folio_put() in advance but it doesn't matter since folios
> are still locked.
>
> As before, since file-backed folios (pages for now) are locked, so
> we could temporarily use folio->private as an internal counter to
> indicate split parts of each folio for the corresponding pclusters
> to decompress.
>
> When such counter becomes zero, the folio will be finally unlocked
> (see compress.h and z_erofs_onlinepage_endio()).
>
> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Thanks,
next prev parent reply other threads:[~2023-08-23 15:23 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-17 8:28 [PATCH 1/8] erofs: simplify z_erofs_read_fragment() Gao Xiang
2023-08-17 8:28 ` [PATCH 2/8] erofs: avoid obsolete {collector,collection} terms Gao Xiang
2023-08-18 2:25 ` Yue Hu
2023-08-23 14:58 ` Chao Yu
2023-08-17 8:28 ` [PATCH 3/8] erofs: move preparation logic into z_erofs_pcluster_begin() Gao Xiang
2023-08-18 2:42 ` Yue Hu
2023-08-23 15:05 ` Chao Yu
2023-08-23 15:22 ` Gao Xiang
2023-08-17 8:28 ` [PATCH 4/8] erofs: tidy up z_erofs_do_read_page() Gao Xiang
2023-08-18 3:12 ` Yue Hu
2023-08-23 15:09 ` Chao Yu
2023-08-17 8:28 ` [PATCH 5/8] erofs: drop z_erofs_page_mark_eio() Gao Xiang
2023-08-18 3:20 ` Yue Hu
2023-08-23 15:19 ` Chao Yu
2023-08-17 8:28 ` [PATCH 6/8] erofs: get rid of fe->backmost for cache decompression Gao Xiang
2023-08-18 5:51 ` Yue Hu
2023-08-18 7:48 ` Gao Xiang
2023-08-18 8:02 ` Yue Hu
2023-08-23 15:19 ` Chao Yu
2023-08-17 8:28 ` [PATCH 7/8] erofs: adapt folios for z_erofs_readahead() Gao Xiang
2023-08-23 15:22 ` Chao Yu [this message]
2023-08-17 8:28 ` [PATCH 8/8] erofs: adapt folios for z_erofs_read_folio() Gao Xiang
2023-08-17 8:39 ` [PATCH v2 " Gao Xiang
2023-08-23 15:23 ` [PATCH " Chao Yu
2023-08-18 2:18 ` [PATCH 1/8] erofs: simplify z_erofs_read_fragment() Yue Hu
2023-08-23 14:56 ` Chao Yu
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