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Message-ID: <37198439-8d2d-dfb9-38b4-a68091c640cc@linux.alibaba.com> Date: Sat, 26 Nov 2022 10:50:19 +0800 From: Jingbo Xu <jefflexu@...ux.alibaba.com> To: xiang@...nel.org, chao@...nel.org, linux-erofs@...ts.ozlabs.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 2/2] erofs: enable large folio support for non-compressed format On 11/26/22 10:16 AM, Gao Xiang wrote: > Hi Jingbo, > > On Sat, Nov 26, 2022 at 08:57:56AM +0800, Jingbo Xu wrote: >> Enable large folio in both device and fscache mode. Then the readahead > > ^ large folios in both iomap and fscache modes. > > I tend to enable iomap/fscache large folios with two patches. > Also please see dev-test branch. Got it. > > >> 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. > > ^ large folios > >> >> Signed-off-by: Jingbo Xu <jefflexu@...ux.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); >> > > Meta inodes currently doesn't need large folios for now, and > we don't have readahead policy for these. Alright, I will fix this in a quick v2. > >> 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 >> -- Thanks, Jingbo
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