Commit 768bb10a authored by Gao Xiang's avatar Gao Xiang
Browse files

erofs: remove linux/buffer_head.h dependency 

EROFS actually never uses buffer heads, therefore just get rid of
BH_xxx definitions and linux/buffer_head.h inclusive.

Link: https://lore.kernel.org/r/20230113065226.68801-2-hsiangkao@linux.alibaba.com


Reviewed-by: default avatarYue Hu <huyue2@coolpad.com>
Reviewed-by: default avatarJingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarGao Xiang <hsiangkao@linux.alibaba.com>
parent 7c3511a2

fs/erofs/internal.h

+6 −14
Original line number Diff line number Diff line
@@ -12,7 +12,6 @@ 
#include <linux/mm.h>

#include <linux/pagemap.h>

#include <linux/bio.h>

#include <linux/buffer_head.h>

#include <linux/magic.h>

#include <linux/slab.h>

#include <linux/vmalloc.h>
@@ -388,25 +387,18 @@ extern struct file_system_type erofs_fs_type; 
extern const struct address_space_operations erofs_raw_access_aops;

extern const struct address_space_operations z_erofs_aops;



enum {

	BH_Encoded = BH_PrivateStart,

	BH_FullMapped,

	BH_Fragment,

	BH_Partialref,

};



/* Has a disk mapping */

#define EROFS_MAP_MAPPED	(1 << BH_Mapped)

#define EROFS_MAP_MAPPED	0x0001

/* Located in metadata (could be copied from bd_inode) */

#define EROFS_MAP_META		(1 << BH_Meta)

#define EROFS_MAP_META		0x0002

/* The extent is encoded */

#define EROFS_MAP_ENCODED	(1 << BH_Encoded)

#define EROFS_MAP_ENCODED	0x0004

/* The length of extent is full */

#define EROFS_MAP_FULL_MAPPED	(1 << BH_FullMapped)

#define EROFS_MAP_FULL_MAPPED	0x0008

/* Located in the special packed inode */

#define EROFS_MAP_FRAGMENT	(1 << BH_Fragment)

#define EROFS_MAP_FRAGMENT	0x0010

/* The extent refers to partial decompressed data */

#define EROFS_MAP_PARTIAL_REF	(1 << BH_Partialref)

#define EROFS_MAP_PARTIAL_REF	0x0020



struct erofs_map_blocks {

	struct erofs_buf buf;

fs/erofs/super.c

+0 −1
Original line number Diff line number Diff line
@@ -5,7 +5,6 @@ 
 * Copyright (C) 2021, Alibaba Cloud

 */

#include <linux/module.h>

#include <linux/buffer_head.h>

#include <linux/statfs.h>

#include <linux/parser.h>

#include <linux/seq_file.h>