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| author | Joern Engel <joern@wh.fh-wedel.de> | 2006-05-22 23:18:29 +0200 |
|---|---|---|
| committer | Joern Engel <joern@wh.fh-wedel.de> | 2006-05-22 23:18:29 +0200 |
| commit | 5fa433942ba4e399f7e28764c9db4ade89e91d40 (patch) | |
| tree | 29a2691729645bf27fd2d7d8d61a5c720c6569c1 /fs/jffs2/os-linux.h | |
| parent | c8b229de2b05c2b3e8d282ce260935a88ac030ca (diff) | |
| download | linux-5fa433942ba4e399f7e28764c9db4ade89e91d40.tar.gz linux-5fa433942ba4e399f7e28764c9db4ade89e91d40.tar.bz2 linux-5fa433942ba4e399f7e28764c9db4ade89e91d40.zip | |
[MTD] Introduce MTD_BIT_WRITEABLE
o Add a flag MTD_BIT_WRITEABLE for devices that allow single bits to be
cleared.
o Replace MTD_PROGRAM_REGIONS with a cleared MTD_BIT_WRITEABLE flag for
STMicro and Intel Sibley flashes with internal ECC. Those flashes
disallow clearing of single bits, unlike regular NOR flashes, so the
new flag models their behaviour better.
o Remove MTD_ECC. After the STMicro/Sibley merge, this flag is only set
and never checked.
Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
Diffstat (limited to 'fs/jffs2/os-linux.h')
| -rw-r--r-- | fs/jffs2/os-linux.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h index 1a6eb955e0be..743c9e52152d 100644 --- a/fs/jffs2/os-linux.h +++ b/fs/jffs2/os-linux.h @@ -105,9 +105,7 @@ static inline void jffs2_init_inode_info(struct jffs2_inode_info *f) #ifdef CONFIG_JFFS2_SUMMARY #define jffs2_can_mark_obsolete(c) (0) #else -#define jffs2_can_mark_obsolete(c) \ - ((c->mtd->type == MTD_NORFLASH && !(c->mtd->flags & (MTD_PROGRAM_REGIONS))) || \ - c->mtd->type == MTD_RAM) +#define jffs2_can_mark_obsolete(c) (c->mtd->flags & (MTD_BIT_WRITEABLE)) #endif #define jffs2_cleanmarker_oob(c) (c->mtd->type == MTD_NANDFLASH) @@ -135,7 +133,7 @@ void jffs2_nand_flash_cleanup(struct jffs2_sb_info *c); int jffs2_dataflash_setup(struct jffs2_sb_info *c); void jffs2_dataflash_cleanup(struct jffs2_sb_info *c); -#define jffs2_nor_wbuf_flash(c) (c->mtd->type == MTD_NORFLASH && (c->mtd->flags & MTD_PROGRAM_REGIONS)) +#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); |