[PATCH 2/2] erofs: enable large folio support for non-compressed format

Jingbo Xu
2022-11-26T00:58:09Z

Enable large folio in both device and fscache mode. Then the readahead
routine will pass down large folio containing multiple pages.

Enable this feature for non-compressed format for now, until the
compression part supports large folio later.

Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
---
fs/erofs/fscache.c | 1 +
fs/erofs/inode.c | 1 +
2 files changed, 2 insertions(+)

diff --git a/fs/erofs/fscache.c b/fs/erofs/fscache.c
index 0643b205c7eb..d2dd58ce312b 100644
--- a/fs/erofs/fscache.c
+++ b/fs/erofs/fscache.c
@@ -436,6 +436,7 @@ struct erofs_fscache *erofs_fscache_acquire_cookie(struct super_block *sb,
inode->i_size = OFFSET_MAX;
inode->i_mapping->a_ops = &erofs_fscache_meta_aops;
mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
+ mapping_set_large_folios(inode->i_mapping);

ctx->inode = inode;
}
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index ad2a82f2eb4c..85932086d23f 100644
--- a/fs/erofs/inode.c
+++ b/fs/erofs/inode.c
@@ -295,6 +295,7 @@ static int erofs_fill_inode(struct inode *inode)
goto out_unlock;
}
inode->i_mapping->a_ops = &erofs_raw_access_aops;
+ 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;
--
2.19.1.6.gb485710b