Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/fs/adfs/adfs.h b/fs/adfs/adfs.h
index c76db75..b7e844d 100644
--- a/fs/adfs/adfs.h
+++ b/fs/adfs/adfs.h
@@ -1,4 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/buffer_head.h>
#include <linux/fs.h>
#include <linux/adfs_fs.h>
@@ -8,6 +9,15 @@
#define ADFS_BAD_FRAG 1
#define ADFS_ROOT_FRAG 2
+#define ADFS_FILETYPE_NONE ((u16)~0)
+
+/* RISC OS 12-bit filetype is stored in load_address[19:8] */
+static inline u16 adfs_filetype(u32 loadaddr)
+{
+ return (loadaddr & 0xfff00000) == 0xfff00000 ?
+ (loadaddr >> 8) & 0xfff : ADFS_FILETYPE_NONE;
+}
+
#define ADFS_NDA_OWNER_READ (1 << 0)
#define ADFS_NDA_OWNER_WRITE (1 << 1)
#define ADFS_NDA_LOCKED (1 << 2)
@@ -18,22 +28,28 @@
#include "dir_f.h"
-struct buffer_head;
-
/*
* adfs file system inode data in memory
*/
struct adfs_inode_info {
loff_t mmu_private;
- unsigned long parent_id; /* object id of parent */
+ __u32 parent_id; /* parent indirect disc address */
__u32 loadaddr; /* RISC OS load address */
__u32 execaddr; /* RISC OS exec address */
- unsigned int filetype; /* RISC OS file type */
unsigned int attr; /* RISC OS permissions */
- unsigned int stamped:1; /* RISC OS file has date/time */
struct inode vfs_inode;
};
+static inline struct adfs_inode_info *ADFS_I(struct inode *inode)
+{
+ return container_of(inode, struct adfs_inode_info, vfs_inode);
+}
+
+static inline bool adfs_inode_is_stamped(struct inode *inode)
+{
+ return (ADFS_I(inode)->loadaddr & 0xfff00000) == 0xfff00000;
+}
+
/*
* Forward-declare this
*/
@@ -59,10 +75,8 @@
__u32 s_ids_per_zone; /* max. no ids in one zone */
__u32 s_idlen; /* length of ID in map */
__u32 s_map_size; /* sector size of a map */
- unsigned long s_size; /* total size (in blocks) of this fs */
signed int s_map2blk; /* shift left by this for map->sector*/
unsigned int s_log2sharesize;/* log2 share size */
- __le32 s_version; /* disc format version */
unsigned int s_namelen; /* maximum number of characters in name */
};
@@ -71,11 +85,6 @@
return sb->s_fs_info;
}
-static inline struct adfs_inode_info *ADFS_I(struct inode *inode)
-{
- return container_of(inode, struct adfs_inode_info, vfs_inode);
-}
-
/*
* Directory handling
*/
@@ -89,7 +98,7 @@
struct buffer_head **bh_fplus;
unsigned int pos;
- unsigned int parent_id;
+ __u32 parent_id;
struct adfs_dirheader dirhead;
union adfs_dirtail dirtail;
@@ -101,33 +110,18 @@
#define ADFS_MAX_NAME_LEN (256 + 4) /* +4 for ,xyz hex filetype suffix */
struct object_info {
__u32 parent_id; /* parent object id */
- __u32 file_id; /* object id */
+ __u32 indaddr; /* indirect disc addr */
__u32 loadaddr; /* load address */
__u32 execaddr; /* execution address */
__u32 size; /* size */
__u8 attr; /* RISC OS attributes */
unsigned int name_len; /* name length */
char name[ADFS_MAX_NAME_LEN];/* file name */
-
- /* RISC OS file type (12-bit: derived from loadaddr) */
- __u16 filetype;
};
-/* RISC OS 12-bit filetype converts to ,xyz hex filename suffix */
-static inline int append_filetype_suffix(char *buf, __u16 filetype)
-{
- if (filetype == 0xffff) /* no explicit 12-bit file type was set */
- return 0;
-
- *buf++ = ',';
- *buf++ = hex_asc_lo(filetype >> 8);
- *buf++ = hex_asc_lo(filetype >> 4);
- *buf++ = hex_asc_lo(filetype >> 0);
- return 4;
-}
-
struct adfs_dir_ops {
- int (*read)(struct super_block *sb, unsigned int id, unsigned int sz, struct adfs_dir *dir);
+ int (*read)(struct super_block *sb, unsigned int indaddr,
+ unsigned int size, struct adfs_dir *dir);
int (*setpos)(struct adfs_dir *dir, unsigned int fpos);
int (*getnext)(struct adfs_dir *dir, struct object_info *obj);
int (*update)(struct adfs_dir *dir, struct object_info *obj);
@@ -150,7 +144,7 @@
int adfs_notify_change(struct dentry *dentry, struct iattr *attr);
/* map.c */
-extern int adfs_map_lookup(struct super_block *sb, unsigned int frag_id, unsigned int offset);
+int adfs_map_lookup(struct super_block *sb, u32 frag_id, unsigned int offset);
extern unsigned int adfs_map_free(struct super_block *sb);
/* Misc */
@@ -158,6 +152,7 @@
void __adfs_error(struct super_block *sb, const char *function,
const char *fmt, ...);
#define adfs_error(sb, fmt...) __adfs_error(sb, __func__, fmt)
+void adfs_msg(struct super_block *sb, const char *pfx, const char *fmt, ...);
/* super.c */
@@ -172,6 +167,7 @@
extern const struct adfs_dir_ops adfs_f_dir_ops;
extern const struct adfs_dir_ops adfs_fplus_dir_ops;
+void adfs_object_fixup(struct adfs_dir *dir, struct object_info *obj);
extern int adfs_dir_update(struct super_block *sb, struct object_info *obj,
int wait);
@@ -194,16 +190,28 @@
*
* The root directory ID should always be looked up in the map [3.4]
*/
-static inline int
-__adfs_block_map(struct super_block *sb, unsigned int object_id,
- unsigned int block)
+static inline int __adfs_block_map(struct super_block *sb, u32 indaddr,
+ unsigned int block)
{
- if (object_id & 255) {
+ if (indaddr & 255) {
unsigned int off;
- off = (object_id & 255) - 1;
+ off = (indaddr & 255) - 1;
block += off << ADFS_SB(sb)->s_log2sharesize;
}
- return adfs_map_lookup(sb, object_id >> 8, block);
+ return adfs_map_lookup(sb, indaddr >> 8, block);
+}
+
+/* Return the disc record from the map */
+static inline
+struct adfs_discrecord *adfs_map_discrecord(struct adfs_discmap *dm)
+{
+ return (void *)(dm[0].dm_bh->b_data + 4);
+}
+
+static inline u64 adfs_disc_size(const struct adfs_discrecord *dr)
+{
+ return (u64)le32_to_cpu(dr->disc_size_high) << 32 |
+ le32_to_cpu(dr->disc_size);
}