From e6687b89225ee9c817e6dcbadc873f6a4691e5c2 Mon Sep 17 00:00:00 2001
From: Jingbo Xu <jefflexu@linux.alibaba.com>
Date: Thu, 1 Dec 2022 15:42:56 +0800
Subject: [PATCH] erofs: enable large folios for fscache mode
Enable large folios for fscache mode. Enable this feature for
non-compressed format for now, until the compression part supports large
folios later.
One thing worth noting is that, the feature is not enabled for the meta
data routine since meta inodes don't need large folios for now, nor do
they support readahead yet.
Also document this new feature.
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Jia Zhu <zhujia.zj@bytedance.com>
Link: https://lore.kernel.org/r/20221201074256.16639-3-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
Documentation/filesystems/erofs.rst | 2 ++
fs/erofs/inode.c | 3 +--
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/Documentation/filesystems/erofs.rst b/Documentation/filesystems/erofs.rst
index a2fdbd4f0e33d..067fd1670b1f1 100644
--- a/Documentation/filesystems/erofs.rst
+++ b/Documentation/filesystems/erofs.rst
@@ -73,6 +73,8 @@ Here are the main features of EROFS:
- Support merging tail-end data into a special inode as fragments.
+ - Support large folios for uncompressed files.
+
- Support direct I/O on uncompressed files to avoid double caching for loop
devices;
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index e457b8a59ee7c..85932086d23ff 100644
--- a/fs/erofs/inode.c
+++ b/fs/erofs/inode.c
@@ -295,8 +295,7 @@ static int erofs_fill_inode(struct inode *inode)
goto out_unlock;
}
inode->i_mapping->a_ops = &erofs_raw_access_aops;
- if (!erofs_is_fscache_mode(inode->i_sb))
- mapping_set_large_folios(inode->i_mapping);
+ mapping_set_large_folios(inode->i_mapping);
#ifdef CONFIG_EROFS_FS_ONDEMAND
if (erofs_is_fscache_mode(inode->i_sb))
inode->i_mapping->a_ops = &erofs_fscache_access_aops;
--
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