diff options
Diffstat (limited to 'fs/jffs2/os-linux.h')
| -rw-r--r-- | fs/jffs2/os-linux.h | 60 |
1 files changed, 15 insertions, 45 deletions
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h index 03b0acc37b7..7bf72e012c9 100644 --- a/fs/jffs2/os-linux.h +++ b/fs/jffs2/os-linux.h @@ -7,41 +7,24 @@ * * For licensing information, see the file 'LICENCE' in this directory. * - * $Id: os-linux.h,v 1.51 2004/11/16 20:36:11 dwmw2 Exp $ + * $Id: os-linux.h,v 1.57 2005/07/06 12:13:09 dwmw2 Exp $ * */ #ifndef __JFFS2_OS_LINUX_H__ #define __JFFS2_OS_LINUX_H__ -#include <linux/version.h> /* JFFS2 uses Linux mode bits natively -- no need for conversion */ #define os_to_jffs2_mode(x) (x) #define jffs2_to_os_mode(x) (x) -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,73) -#define kstatfs statfs -#endif - struct kstatfs; struct kvec; -#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2) #define JFFS2_INODE_INFO(i) (list_entry(i, struct jffs2_inode_info, vfs_inode)) #define OFNI_EDONI_2SFFJ(f) (&(f)->vfs_inode) #define JFFS2_SB_INFO(sb) (sb->s_fs_info) #define OFNI_BS_2SFFJ(c) ((struct super_block *)c->os_priv) -#elif defined(JFFS2_OUT_OF_KERNEL) -#define JFFS2_INODE_INFO(i) ((struct jffs2_inode_info *) &(i)->u) -#define OFNI_EDONI_2SFFJ(f) ((struct inode *) ( ((char *)f) - ((char *)(&((struct inode *)NULL)->u)) ) ) -#define JFFS2_SB_INFO(sb) ((struct jffs2_sb_info *) &(sb)->u) -#define OFNI_BS_2SFFJ(c) ((struct super_block *) ( ((char *)c) - ((char *)(&((struct super_block *)NULL)->u)) ) ) -#else -#define JFFS2_INODE_INFO(i) (&i->u.jffs2_i) -#define OFNI_EDONI_2SFFJ(f) ((struct inode *) ( ((char *)f) - ((char *)(&((struct inode *)NULL)->u)) ) ) -#define JFFS2_SB_INFO(sb) (&sb->u.jffs2_sb) -#define OFNI_BS_2SFFJ(c) ((struct super_block *) ( ((char *)c) - ((char *)(&((struct super_block *)NULL)->u)) ) ) -#endif #define JFFS2_F_I_SIZE(f) (OFNI_EDONI_2SFFJ(f)->i_size) @@ -49,28 +32,14 @@ struct kvec; #define JFFS2_F_I_UID(f) (OFNI_EDONI_2SFFJ(f)->i_uid) #define JFFS2_F_I_GID(f) (OFNI_EDONI_2SFFJ(f)->i_gid) -#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,1) #define JFFS2_F_I_RDEV_MIN(f) (iminor(OFNI_EDONI_2SFFJ(f))) #define JFFS2_F_I_RDEV_MAJ(f) (imajor(OFNI_EDONI_2SFFJ(f))) -#else -#define JFFS2_F_I_RDEV_MIN(f) (MINOR(to_kdev_t(OFNI_EDONI_2SFFJ(f)->i_rdev))) -#define JFFS2_F_I_RDEV_MAJ(f) (MAJOR(to_kdev_t(OFNI_EDONI_2SFFJ(f)->i_rdev))) -#endif -/* Urgh. The things we do to keep the 2.4 build working */ -#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,47) #define ITIME(sec) ((struct timespec){sec, 0}) #define I_SEC(tv) ((tv).tv_sec) #define JFFS2_F_I_CTIME(f) (OFNI_EDONI_2SFFJ(f)->i_ctime.tv_sec) #define JFFS2_F_I_MTIME(f) (OFNI_EDONI_2SFFJ(f)->i_mtime.tv_sec) #define JFFS2_F_I_ATIME(f) (OFNI_EDONI_2SFFJ(f)->i_atime.tv_sec) -#else -#define ITIME(x) (x) -#define I_SEC(x) (x) -#define JFFS2_F_I_CTIME(f) (OFNI_EDONI_2SFFJ(f)->i_ctime) -#define JFFS2_F_I_MTIME(f) (OFNI_EDONI_2SFFJ(f)->i_mtime) -#define JFFS2_F_I_ATIME(f) (OFNI_EDONI_2SFFJ(f)->i_atime) -#endif #define sleep_on_spinunlock(wq, s) \ do { \ @@ -84,23 +53,21 @@ struct kvec; static inline void jffs2_init_inode_info(struct jffs2_inode_info *f) { -#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2) f->highest_version = 0; f->fragtree = RB_ROOT; f->metadata = NULL; f->dents = NULL; f->flags = 0; f->usercompr = 0; -#else - memset(f, 0, sizeof(*f)); - init_MUTEX_LOCKED(&f->sem); -#endif } + #define jffs2_is_readonly(c) (OFNI_BS_2SFFJ(c)->s_flags & MS_RDONLY) -#if (!defined CONFIG_JFFS2_FS_NAND && !defined CONFIG_JFFS2_FS_NOR_ECC) +#ifndef CONFIG_JFFS2_FS_WRITEBUFFER +#define SECTOR_ADDR(x) ( ((unsigned long)(x) & ~(c->sector_size-1)) ) #define jffs2_can_mark_obsolete(c) (1) +#define jffs2_is_writebuffered(c) (0) #define jffs2_cleanmarker_oob(c) (0) #define jffs2_write_nand_cleanmarker(c,jeb) (-EIO) @@ -116,11 +83,14 @@ static inline void jffs2_init_inode_info(struct jffs2_inode_info *f) #define jffs2_wbuf_timeout NULL #define jffs2_wbuf_process NULL #define jffs2_nor_ecc(c) (0) +#define jffs2_dataflash(c) (0) #define jffs2_nor_ecc_flash_setup(c) (0) #define jffs2_nor_ecc_flash_cleanup(c) do {} while (0) #else /* NAND and/or ECC'd NOR support present */ +#define jffs2_is_writebuffered(c) (c->wbuf != NULL) +#define SECTOR_ADDR(x) ( ((unsigned long)(x) / (unsigned long)(c->sector_size)) * c->sector_size ) #define jffs2_can_mark_obsolete(c) ((c->mtd->type == MTD_NORFLASH && !(c->mtd->flags & MTD_ECC)) || c->mtd->type == MTD_RAM) #define jffs2_cleanmarker_oob(c) (c->mtd->type == MTD_NANDFLASH) @@ -142,16 +112,16 @@ int jffs2_flush_wbuf_gc(struct jffs2_sb_info *c, uint32_t ino); int jffs2_flush_wbuf_pad(struct jffs2_sb_info *c); int jffs2_nand_flash_setup(struct jffs2_sb_info *c); void jffs2_nand_flash_cleanup(struct jffs2_sb_info *c); -#ifdef CONFIG_JFFS2_FS_NOR_ECC + #define jffs2_nor_ecc(c) (c->mtd->type == MTD_NORFLASH && (c->mtd->flags & MTD_ECC)) int jffs2_nor_ecc_flash_setup(struct jffs2_sb_info *c); void jffs2_nor_ecc_flash_cleanup(struct jffs2_sb_info *c); -#else -#define jffs2_nor_ecc(c) (0) -#define jffs2_nor_ecc_flash_setup(c) (0) -#define jffs2_nor_ecc_flash_cleanup(c) do {} while (0) -#endif /* NOR ECC */ -#endif /* NAND */ + +#define jffs2_dataflash(c) (c->mtd->type == MTD_DATAFLASH) +int jffs2_dataflash_setup(struct jffs2_sb_info *c); +void jffs2_dataflash_cleanup(struct jffs2_sb_info *c); + +#endif /* WRITEBUFFER */ /* erase.c */ static inline void jffs2_erase_pending_trigger(struct jffs2_sb_info *c) |