X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=fs%2Fjffs2%2Fos-linux.h;h=bf64686cf09848b5d9a0730114ed17fe367c8e5e;hb=e48b9b2fb383879a5d758d526b5eb8de4509f467;hp=5a2d2ee4f641776a566831e1bf5241c1cffe5f4a;hpb=8cd79216676d9122fa714615e6b49553761aca8a;p=safe%2Fjmp%2Flinux-2.6 diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h index 5a2d2ee..bf64686 100644 --- a/fs/jffs2/os-linux.h +++ b/fs/jffs2/os-linux.h @@ -1,76 +1,41 @@ /* * JFFS2 -- Journalling Flash File System, Version 2. * - * Copyright (C) 2002-2003 Red Hat, Inc. + * Copyright © 2001-2007 Red Hat, Inc. * * Created by David Woodhouse * * For licensing information, see the file 'LICENCE' in this directory. * - * $Id: os-linux.h,v 1.56 2005/05/03 15:19:00 dedekind Exp $ - * */ #ifndef __JFFS2_OS_LINUX_H__ #define __JFFS2_OS_LINUX_H__ -#include /* 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) #define JFFS2_F_I_MODE(f) (OFNI_EDONI_2SFFJ(f)->i_mode) #define JFFS2_F_I_UID(f) (OFNI_EDONI_2SFFJ(f)->i_uid) #define JFFS2_F_I_GID(f) (OFNI_EDONI_2SFFJ(f)->i_gid) +#define JFFS2_F_I_RDEV(f) (OFNI_EDONI_2SFFJ(f)->i_rdev) -#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 { \ @@ -84,33 +49,40 @@ 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->target = NULL; f->flags = 0; f->usercompr = 0; -#else - memset(f, 0, sizeof(*f)); - init_MUTEX_LOCKED(&f->sem); +#ifdef CONFIG_JFFS2_FS_POSIX_ACL + f->i_acl_access = JFFS2_ACL_NOT_CACHED; + f->i_acl_default = JFFS2_ACL_NOT_CACHED; #endif } #define jffs2_is_readonly(c) (OFNI_BS_2SFFJ(c)->s_flags & MS_RDONLY) +#define SECTOR_ADDR(x) ( (((unsigned long)(x) / c->sector_size) * c->sector_size) ) #ifndef CONFIG_JFFS2_FS_WRITEBUFFER -#define SECTOR_ADDR(x) ( ((unsigned long)(x) & ~(c->sector_size-1)) ) + + +#ifdef CONFIG_JFFS2_SUMMARY +#define jffs2_can_mark_obsolete(c) (0) +#else #define jffs2_can_mark_obsolete(c) (1) +#endif + #define jffs2_is_writebuffered(c) (0) #define jffs2_cleanmarker_oob(c) (0) #define jffs2_write_nand_cleanmarker(c,jeb) (-EIO) -#define jffs2_flash_write(c, ofs, len, retlen, buf) ((c)->mtd->write((c)->mtd, ofs, len, retlen, buf)) +#define jffs2_flash_write(c, ofs, len, retlen, buf) jffs2_flash_direct_write(c, ofs, len, retlen, buf) #define jffs2_flash_read(c, ofs, len, retlen, buf) ((c)->mtd->read((c)->mtd, ofs, len, retlen, buf)) -#define jffs2_flush_wbuf_pad(c) ({ (void)(c), 0; }) -#define jffs2_flush_wbuf_gc(c, i) ({ (void)(c), (void) i, 0; }) +#define jffs2_flush_wbuf_pad(c) ({ do{} while(0); (void)(c), 0; }) +#define jffs2_flush_wbuf_gc(c, i) ({ do{} while(0); (void)(c), (void) i, 0; }) #define jffs2_write_nand_badblock(c,jeb,bad_offset) (1) #define jffs2_nand_flash_setup(c) (0) #define jffs2_nand_flash_cleanup(c) do {} while(0) @@ -118,16 +90,26 @@ static inline void jffs2_init_inode_info(struct jffs2_inode_info *f) #define jffs2_flash_writev(a,b,c,d,e,f) jffs2_flash_direct_writev(a,b,c,d,e) #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) +#define jffs2_dataflash_setup(c) (0) +#define jffs2_dataflash_cleanup(c) do {} while (0) +#define jffs2_nor_wbuf_flash(c) (0) +#define jffs2_nor_wbuf_flash_setup(c) (0) +#define jffs2_nor_wbuf_flash_cleanup(c) do {} while (0) +#define jffs2_ubivol(c) (0) +#define jffs2_ubivol_setup(c) (0) +#define jffs2_ubivol_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) + +#ifdef CONFIG_JFFS2_SUMMARY +#define jffs2_can_mark_obsolete(c) (0) +#else +#define jffs2_can_mark_obsolete(c) (c->mtd->flags & (MTD_BIT_WRITEABLE)) +#endif + #define jffs2_cleanmarker_oob(c) (c->mtd->type == MTD_NANDFLASH) #define jffs2_flash_write_oob(c, ofs, len, retlen, buf) ((c)->mtd->write_oob((c)->mtd, ofs, len, retlen, buf)) @@ -149,13 +131,16 @@ 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); -#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); - #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); +#define jffs2_ubivol(c) (c->mtd->type == MTD_UBIVOLUME) +int jffs2_ubivol_setup(struct jffs2_sb_info *c); +void jffs2_ubivol_cleanup(struct jffs2_sb_info *c); + +#define jffs2_nor_wbuf_flash(c) (c->mtd->type == MTD_NORFLASH && ! (c->mtd->flags & MTD_BIT_WRITEABLE)) +int jffs2_nor_wbuf_flash_setup(struct jffs2_sb_info *c); +void jffs2_nor_wbuf_flash_cleanup(struct jffs2_sb_info *c); #endif /* WRITEBUFFER */ @@ -171,13 +156,13 @@ void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c); void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c); /* dir.c */ -extern struct file_operations jffs2_dir_operations; -extern struct inode_operations jffs2_dir_inode_operations; +extern const struct file_operations jffs2_dir_operations; +extern const struct inode_operations jffs2_dir_inode_operations; /* file.c */ -extern struct file_operations jffs2_file_operations; -extern struct inode_operations jffs2_file_inode_operations; -extern struct address_space_operations jffs2_file_address_operations; +extern const struct file_operations jffs2_file_operations; +extern const struct inode_operations jffs2_file_inode_operations; +extern const struct address_space_operations jffs2_file_address_operations; int jffs2_fsync(struct file *, struct dentry *, int); int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg); @@ -185,16 +170,17 @@ int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg); int jffs2_ioctl(struct inode *, struct file *, unsigned int, unsigned long); /* symlink.c */ -extern struct inode_operations jffs2_symlink_inode_operations; +extern const struct inode_operations jffs2_symlink_inode_operations; /* fs.c */ int jffs2_setattr (struct dentry *, struct iattr *); +int jffs2_do_setattr (struct inode *, struct iattr *); void jffs2_read_inode (struct inode *); void jffs2_clear_inode (struct inode *); void jffs2_dirty_inode(struct inode *inode); struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_inode *ri); -int jffs2_statfs (struct super_block *, struct kstatfs *); +int jffs2_statfs (struct dentry *, struct kstatfs *); void jffs2_write_super (struct super_block *); int jffs2_remount_fs (struct super_block *, int *, char *); int jffs2_do_fill_super(struct super_block *sb, void *data, int silent); @@ -203,20 +189,21 @@ void jffs2_gc_release_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c, int inum, int nlink); -unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c, - struct jffs2_inode_info *f, +unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c, + struct jffs2_inode_info *f, unsigned long offset, unsigned long *priv); void jffs2_gc_release_page(struct jffs2_sb_info *c, unsigned char *pg, unsigned long *priv); void jffs2_flash_cleanup(struct jffs2_sb_info *c); - + /* writev.c */ -int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs, +int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen); - +int jffs2_flash_direct_write(struct jffs2_sb_info *c, loff_t ofs, size_t len, + size_t *retlen, const u_char *buf); #endif /* __JFFS2_OS_LINUX_H__ */