Messages in this thread Patch in this message | | | From | Jingbo Xu <> | Subject | [PATCH v2] erofs: enable large folios for iomap mode | Date | Wed, 30 Nov 2022 14:04:55 +0800 |
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Enable large folios for iomap mode. Then the readahead routine will pass down large folios containing multiple pages.
Let's enable this for non-compressed format for now, until the compression part supports large folios later.
When large folios supported, the iomap routine will allocate iomap_page for each large folio and thus we need iomap_release_folio() and iomap_invalidate_folio() to free iomap_page when these folios get recalimed or invalidated.
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com> --- v2: - add calling for iomap_release_folio() and iomap_invalidate_folio() to support large folios
v1: https://lore.kernel.org/all/20221110074023.8059-1-jefflexu@linux.alibaba.com/ --- fs/erofs/data.c | 2 ++ fs/erofs/inode.c | 2 ++ 2 files changed, 4 insertions(+)
diff --git a/fs/erofs/data.c b/fs/erofs/data.c index fe8ac0e163f7..c9526c627dda 100644 --- a/fs/erofs/data.c +++ b/fs/erofs/data.c @@ -403,6 +403,8 @@ const struct address_space_operations erofs_raw_access_aops = { .readahead = erofs_readahead, .bmap = erofs_bmap, .direct_IO = noop_direct_IO, + .release_folio = iomap_release_folio, + .invalidate_folio = iomap_invalidate_folio, }; #ifdef CONFIG_FS_DAX diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c index ad2a82f2eb4c..e457b8a59ee7 100644 --- a/fs/erofs/inode.c +++ b/fs/erofs/inode.c @@ -295,6 +295,8 @@ 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); #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
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