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authorGao Xiang <hsiangkao@linux.alibaba.com>2022-03-16 02:22:45 +0100
committerGao Xiang <hsiangkao@linux.alibaba.com>2022-03-16 17:09:02 +0100
commitfe5de5859d44eafd5828ec4910cd52cdad8ada1f (patch)
treef430514691d57e1cc9ef8d065c6a8645ddd67c50 /fs/erofs/internal.h
parentfs: erofs: add sanity check for kobject in erofs_unregister_sysfs (diff)
downloadlinux-fe5de5859d44eafd5828ec4910cd52cdad8ada1f.tar.xz
linux-fe5de5859d44eafd5828ec4910cd52cdad8ada1f.zip
erofs: use meta buffers for reading directories
Previously, directory inodes are directly handled with page cache interfaces. In order to support sub-page directory blocks and folios, let's convert them into the latest metabuf infrastructure as well and this patch addresses the readdir case first. Link: https://lore.kernel.org/r/20220316012246.95131-1-hsiangkao@linux.alibaba.com Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Diffstat (limited to 'fs/erofs/internal.h')
-rw-r--r--fs/erofs/internal.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 5aa2cf2c2f80..5298c4ee277d 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -479,6 +479,8 @@ struct erofs_map_dev {
extern const struct file_operations erofs_file_fops;
void erofs_unmap_metabuf(struct erofs_buf *buf);
void erofs_put_metabuf(struct erofs_buf *buf);
+void *erofs_bread(struct erofs_buf *buf, struct inode *inode,
+ erofs_blk_t blkaddr, enum erofs_kmap_type type);
void *erofs_read_metabuf(struct erofs_buf *buf, struct super_block *sb,
erofs_blk_t blkaddr, enum erofs_kmap_type type);
int erofs_map_dev(struct super_block *sb, struct erofs_map_dev *dev);