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| author | Jingbo Xu <jefflexu@linux.alibaba.com> | 2024-03-08 10:41:59 +0100 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@linux.alibaba.com> | 2024-03-10 11:41:32 +0100 |
| commit | a1bafc3109d713ed83f73d61ba5cb1e6fd80fdbc (patch) | |
| tree | 571d0ec5d9a882da7e093e983e251955be9fb2f0 /fs/erofs/inode.c | |
| parent | erofs: make iov_iter describe target buffers over fscache (diff) | |
| download | linux-a1bafc3109d713ed83f73d61ba5cb1e6fd80fdbc.tar.xz linux-a1bafc3109d713ed83f73d61ba5cb1e6fd80fdbc.zip | |
erofs: support compressed inodes over fscache
Since fscache can utilize iov_iter to write dest buffers, bio_vec can
be used in this way too.
To simplify this, pseudo bios are prepared and bio_vec will be filled
with bio_add_page(). And a common .bi_end_io will be called directly
to handle I/O completions.
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240308094159.40547-2-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'fs/erofs/inode.c')
| -rw-r--r-- | fs/erofs/inode.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c index 36e638e8b53a..0eb0e6f933c3 100644 --- a/fs/erofs/inode.c +++ b/fs/erofs/inode.c @@ -259,14 +259,12 @@ static int erofs_fill_inode(struct inode *inode) if (erofs_inode_is_data_compressed(vi->datalayout)) { #ifdef CONFIG_EROFS_FS_ZIP - if (!erofs_is_fscache_mode(inode->i_sb)) { - DO_ONCE_LITE_IF(inode->i_sb->s_blocksize != PAGE_SIZE, - erofs_info, inode->i_sb, - "EXPERIMENTAL EROFS subpage compressed block support in use. Use at your own risk!"); - inode->i_mapping->a_ops = &z_erofs_aops; - err = 0; - goto out_unlock; - } + DO_ONCE_LITE_IF(inode->i_blkbits != PAGE_SHIFT, + erofs_info, inode->i_sb, + "EXPERIMENTAL EROFS subpage compressed block support in use. Use at your own risk!"); + inode->i_mapping->a_ops = &z_erofs_aops; + err = 0; + goto out_unlock; #endif err = -EOPNOTSUPP; goto out_unlock; |