diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/jffs2/os-linux.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'fs/jffs2/os-linux.h')
-rw-r--r-- | fs/jffs2/os-linux.h | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h new file mode 100644 index 000000000000..03b0acc37b73 --- /dev/null +++ b/fs/jffs2/os-linux.h | |||
@@ -0,0 +1,217 @@ | |||
1 | /* | ||
2 | * JFFS2 -- Journalling Flash File System, Version 2. | ||
3 | * | ||
4 | * Copyright (C) 2002-2003 Red Hat, Inc. | ||
5 | * | ||
6 | * Created by David Woodhouse <dwmw2@infradead.org> | ||
7 | * | ||
8 | * For licensing information, see the file 'LICENCE' in this directory. | ||
9 | * | ||
10 | * $Id: os-linux.h,v 1.51 2004/11/16 20:36:11 dwmw2 Exp $ | ||
11 | * | ||
12 | */ | ||
13 | |||
14 | #ifndef __JFFS2_OS_LINUX_H__ | ||
15 | #define __JFFS2_OS_LINUX_H__ | ||
16 | #include <linux/version.h> | ||
17 | |||
18 | /* JFFS2 uses Linux mode bits natively -- no need for conversion */ | ||
19 | #define os_to_jffs2_mode(x) (x) | ||
20 | #define jffs2_to_os_mode(x) (x) | ||
21 | |||
22 | #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,73) | ||
23 | #define kstatfs statfs | ||
24 | #endif | ||
25 | |||
26 | struct kstatfs; | ||
27 | struct kvec; | ||
28 | |||
29 | #if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2) | ||
30 | #define JFFS2_INODE_INFO(i) (list_entry(i, struct jffs2_inode_info, vfs_inode)) | ||
31 | #define OFNI_EDONI_2SFFJ(f) (&(f)->vfs_inode) | ||
32 | #define JFFS2_SB_INFO(sb) (sb->s_fs_info) | ||
33 | #define OFNI_BS_2SFFJ(c) ((struct super_block *)c->os_priv) | ||
34 | #elif defined(JFFS2_OUT_OF_KERNEL) | ||
35 | #define JFFS2_INODE_INFO(i) ((struct jffs2_inode_info *) &(i)->u) | ||
36 | #define OFNI_EDONI_2SFFJ(f) ((struct inode *) ( ((char *)f) - ((char *)(&((struct inode *)NULL)->u)) ) ) | ||
37 | #define JFFS2_SB_INFO(sb) ((struct jffs2_sb_info *) &(sb)->u) | ||
38 | #define OFNI_BS_2SFFJ(c) ((struct super_block *) ( ((char *)c) - ((char *)(&((struct super_block *)NULL)->u)) ) ) | ||
39 | #else | ||
40 | #define JFFS2_INODE_INFO(i) (&i->u.jffs2_i) | ||
41 | #define OFNI_EDONI_2SFFJ(f) ((struct inode *) ( ((char *)f) - ((char *)(&((struct inode *)NULL)->u)) ) ) | ||
42 | #define JFFS2_SB_INFO(sb) (&sb->u.jffs2_sb) | ||
43 | #define OFNI_BS_2SFFJ(c) ((struct super_block *) ( ((char *)c) - ((char *)(&((struct super_block *)NULL)->u)) ) ) | ||
44 | #endif | ||
45 | |||
46 | |||
47 | #define JFFS2_F_I_SIZE(f) (OFNI_EDONI_2SFFJ(f)->i_size) | ||
48 | #define JFFS2_F_I_MODE(f) (OFNI_EDONI_2SFFJ(f)->i_mode) | ||
49 | #define JFFS2_F_I_UID(f) (OFNI_EDONI_2SFFJ(f)->i_uid) | ||
50 | #define JFFS2_F_I_GID(f) (OFNI_EDONI_2SFFJ(f)->i_gid) | ||
51 | |||
52 | #if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,1) | ||
53 | #define JFFS2_F_I_RDEV_MIN(f) (iminor(OFNI_EDONI_2SFFJ(f))) | ||
54 | #define JFFS2_F_I_RDEV_MAJ(f) (imajor(OFNI_EDONI_2SFFJ(f))) | ||
55 | #else | ||
56 | #define JFFS2_F_I_RDEV_MIN(f) (MINOR(to_kdev_t(OFNI_EDONI_2SFFJ(f)->i_rdev))) | ||
57 | #define JFFS2_F_I_RDEV_MAJ(f) (MAJOR(to_kdev_t(OFNI_EDONI_2SFFJ(f)->i_rdev))) | ||
58 | #endif | ||
59 | |||
60 | /* Urgh. The things we do to keep the 2.4 build working */ | ||
61 | #if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,47) | ||
62 | #define ITIME(sec) ((struct timespec){sec, 0}) | ||
63 | #define I_SEC(tv) ((tv).tv_sec) | ||
64 | #define JFFS2_F_I_CTIME(f) (OFNI_EDONI_2SFFJ(f)->i_ctime.tv_sec) | ||
65 | #define JFFS2_F_I_MTIME(f) (OFNI_EDONI_2SFFJ(f)->i_mtime.tv_sec) | ||
66 | #define JFFS2_F_I_ATIME(f) (OFNI_EDONI_2SFFJ(f)->i_atime.tv_sec) | ||
67 | #else | ||
68 | #define ITIME(x) (x) | ||
69 | #define I_SEC(x) (x) | ||
70 | #define JFFS2_F_I_CTIME(f) (OFNI_EDONI_2SFFJ(f)->i_ctime) | ||
71 | #define JFFS2_F_I_MTIME(f) (OFNI_EDONI_2SFFJ(f)->i_mtime) | ||
72 | #define JFFS2_F_I_ATIME(f) (OFNI_EDONI_2SFFJ(f)->i_atime) | ||
73 | #endif | ||
74 | |||
75 | #define sleep_on_spinunlock(wq, s) \ | ||
76 | do { \ | ||
77 | DECLARE_WAITQUEUE(__wait, current); \ | ||
78 | add_wait_queue((wq), &__wait); \ | ||
79 | set_current_state(TASK_UNINTERRUPTIBLE); \ | ||
80 | spin_unlock(s); \ | ||
81 | schedule(); \ | ||
82 | remove_wait_queue((wq), &__wait); \ | ||
83 | } while(0) | ||
84 | |||
85 | static inline void jffs2_init_inode_info(struct jffs2_inode_info *f) | ||
86 | { | ||
87 | #if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2) | ||
88 | f->highest_version = 0; | ||
89 | f->fragtree = RB_ROOT; | ||
90 | f->metadata = NULL; | ||
91 | f->dents = NULL; | ||
92 | f->flags = 0; | ||
93 | f->usercompr = 0; | ||
94 | #else | ||
95 | memset(f, 0, sizeof(*f)); | ||
96 | init_MUTEX_LOCKED(&f->sem); | ||
97 | #endif | ||
98 | } | ||
99 | |||
100 | #define jffs2_is_readonly(c) (OFNI_BS_2SFFJ(c)->s_flags & MS_RDONLY) | ||
101 | |||
102 | #if (!defined CONFIG_JFFS2_FS_NAND && !defined CONFIG_JFFS2_FS_NOR_ECC) | ||
103 | #define jffs2_can_mark_obsolete(c) (1) | ||
104 | #define jffs2_cleanmarker_oob(c) (0) | ||
105 | #define jffs2_write_nand_cleanmarker(c,jeb) (-EIO) | ||
106 | |||
107 | #define jffs2_flash_write(c, ofs, len, retlen, buf) ((c)->mtd->write((c)->mtd, ofs, len, retlen, buf)) | ||
108 | #define jffs2_flash_read(c, ofs, len, retlen, buf) ((c)->mtd->read((c)->mtd, ofs, len, retlen, buf)) | ||
109 | #define jffs2_flush_wbuf_pad(c) ({ (void)(c), 0; }) | ||
110 | #define jffs2_flush_wbuf_gc(c, i) ({ (void)(c), (void) i, 0; }) | ||
111 | #define jffs2_write_nand_badblock(c,jeb,bad_offset) (1) | ||
112 | #define jffs2_nand_flash_setup(c) (0) | ||
113 | #define jffs2_nand_flash_cleanup(c) do {} while(0) | ||
114 | #define jffs2_wbuf_dirty(c) (0) | ||
115 | #define jffs2_flash_writev(a,b,c,d,e,f) jffs2_flash_direct_writev(a,b,c,d,e) | ||
116 | #define jffs2_wbuf_timeout NULL | ||
117 | #define jffs2_wbuf_process NULL | ||
118 | #define jffs2_nor_ecc(c) (0) | ||
119 | #define jffs2_nor_ecc_flash_setup(c) (0) | ||
120 | #define jffs2_nor_ecc_flash_cleanup(c) do {} while (0) | ||
121 | |||
122 | #else /* NAND and/or ECC'd NOR support present */ | ||
123 | |||
124 | #define jffs2_can_mark_obsolete(c) ((c->mtd->type == MTD_NORFLASH && !(c->mtd->flags & MTD_ECC)) || c->mtd->type == MTD_RAM) | ||
125 | #define jffs2_cleanmarker_oob(c) (c->mtd->type == MTD_NANDFLASH) | ||
126 | |||
127 | #define jffs2_flash_write_oob(c, ofs, len, retlen, buf) ((c)->mtd->write_oob((c)->mtd, ofs, len, retlen, buf)) | ||
128 | #define jffs2_flash_read_oob(c, ofs, len, retlen, buf) ((c)->mtd->read_oob((c)->mtd, ofs, len, retlen, buf)) | ||
129 | #define jffs2_wbuf_dirty(c) (!!(c)->wbuf_len) | ||
130 | |||
131 | /* wbuf.c */ | ||
132 | int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen, uint32_t ino); | ||
133 | int jffs2_flash_write(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *retlen, const u_char *buf); | ||
134 | int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *retlen, u_char *buf); | ||
135 | int jffs2_check_oob_empty(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb,int mode); | ||
136 | int jffs2_check_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb); | ||
137 | int jffs2_write_nand_cleanmarker(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb); | ||
138 | int jffs2_write_nand_badblock(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t bad_offset); | ||
139 | void jffs2_wbuf_timeout(unsigned long data); | ||
140 | void jffs2_wbuf_process(void *data); | ||
141 | int jffs2_flush_wbuf_gc(struct jffs2_sb_info *c, uint32_t ino); | ||
142 | int jffs2_flush_wbuf_pad(struct jffs2_sb_info *c); | ||
143 | int jffs2_nand_flash_setup(struct jffs2_sb_info *c); | ||
144 | void jffs2_nand_flash_cleanup(struct jffs2_sb_info *c); | ||
145 | #ifdef CONFIG_JFFS2_FS_NOR_ECC | ||
146 | #define jffs2_nor_ecc(c) (c->mtd->type == MTD_NORFLASH && (c->mtd->flags & MTD_ECC)) | ||
147 | int jffs2_nor_ecc_flash_setup(struct jffs2_sb_info *c); | ||
148 | void jffs2_nor_ecc_flash_cleanup(struct jffs2_sb_info *c); | ||
149 | #else | ||
150 | #define jffs2_nor_ecc(c) (0) | ||
151 | #define jffs2_nor_ecc_flash_setup(c) (0) | ||
152 | #define jffs2_nor_ecc_flash_cleanup(c) do {} while (0) | ||
153 | #endif /* NOR ECC */ | ||
154 | #endif /* NAND */ | ||
155 | |||
156 | /* erase.c */ | ||
157 | static inline void jffs2_erase_pending_trigger(struct jffs2_sb_info *c) | ||
158 | { | ||
159 | OFNI_BS_2SFFJ(c)->s_dirt = 1; | ||
160 | } | ||
161 | |||
162 | /* background.c */ | ||
163 | int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c); | ||
164 | void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c); | ||
165 | void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c); | ||
166 | |||
167 | /* dir.c */ | ||
168 | extern struct file_operations jffs2_dir_operations; | ||
169 | extern struct inode_operations jffs2_dir_inode_operations; | ||
170 | |||
171 | /* file.c */ | ||
172 | extern struct file_operations jffs2_file_operations; | ||
173 | extern struct inode_operations jffs2_file_inode_operations; | ||
174 | extern struct address_space_operations jffs2_file_address_operations; | ||
175 | int jffs2_fsync(struct file *, struct dentry *, int); | ||
176 | int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg); | ||
177 | |||
178 | /* ioctl.c */ | ||
179 | int jffs2_ioctl(struct inode *, struct file *, unsigned int, unsigned long); | ||
180 | |||
181 | /* symlink.c */ | ||
182 | extern struct inode_operations jffs2_symlink_inode_operations; | ||
183 | |||
184 | /* fs.c */ | ||
185 | int jffs2_setattr (struct dentry *, struct iattr *); | ||
186 | void jffs2_read_inode (struct inode *); | ||
187 | void jffs2_clear_inode (struct inode *); | ||
188 | void jffs2_dirty_inode(struct inode *inode); | ||
189 | struct inode *jffs2_new_inode (struct inode *dir_i, int mode, | ||
190 | struct jffs2_raw_inode *ri); | ||
191 | int jffs2_statfs (struct super_block *, struct kstatfs *); | ||
192 | void jffs2_write_super (struct super_block *); | ||
193 | int jffs2_remount_fs (struct super_block *, int *, char *); | ||
194 | int jffs2_do_fill_super(struct super_block *sb, void *data, int silent); | ||
195 | void jffs2_gc_release_inode(struct jffs2_sb_info *c, | ||
196 | struct jffs2_inode_info *f); | ||
197 | struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c, | ||
198 | int inum, int nlink); | ||
199 | |||
200 | unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c, | ||
201 | struct jffs2_inode_info *f, | ||
202 | unsigned long offset, | ||
203 | unsigned long *priv); | ||
204 | void jffs2_gc_release_page(struct jffs2_sb_info *c, | ||
205 | unsigned char *pg, | ||
206 | unsigned long *priv); | ||
207 | void jffs2_flash_cleanup(struct jffs2_sb_info *c); | ||
208 | |||
209 | |||
210 | /* writev.c */ | ||
211 | int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs, | ||
212 | unsigned long count, loff_t to, size_t *retlen); | ||
213 | |||
214 | |||
215 | #endif /* __JFFS2_OS_LINUX_H__ */ | ||
216 | |||
217 | |||