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authorAndrew Victor <andrew@sanpeople.com>2005-02-09 09:24:26 +0000
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-05-23 12:29:43 +0200
commit2f82ce1eb637c06dfc60f095cd1891ae0ba4894c (patch)
tree425727d05f70fdd55d5cf715c7acbeca6aeeeb18 /fs/jffs2/os-linux.h
parent8f15fd55f9bf266139b10850947e19c4e3f4e9b7 (diff)
downloadop-kernel-dev-2f82ce1eb637c06dfc60f095cd1891ae0ba4894c.zip
op-kernel-dev-2f82ce1eb637c06dfc60f095cd1891ae0ba4894c.tar.gz
[JFFS2] Use a single config option for write buffer support
This patch replaces the current CONFIG_JFFS2_FS_NAND, CONFIG_JFFS2_FS_NOR_ECC and CONFIG_JFFS2_FS_DATAFLASH with a single configuration option - CONFIG_JFFS2_FS_WRITEBUFFER. The only functional change of this patch is that the slower div/mod calculations for SECTOR_ADDR(), PAGE_DIV() and PAGE_MOD() are now always used when CONFIG_JFFS2_FS_WRITEBUFFER is enabled. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs/jffs2/os-linux.h')
-rw-r--r--fs/jffs2/os-linux.h28
1 files changed, 8 insertions, 20 deletions
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h
index af27b84..8989cd6 100644
--- a/fs/jffs2/os-linux.h
+++ b/fs/jffs2/os-linux.h
@@ -7,7 +7,7 @@
*
* For licensing information, see the file 'LICENCE' in this directory.
*
- * $Id: os-linux.h,v 1.53 2005/02/09 09:17:41 pavlov Exp $
+ * $Id: os-linux.h,v 1.54 2005/02/09 09:23:53 pavlov Exp $
*
*/
@@ -97,16 +97,12 @@ static inline void jffs2_init_inode_info(struct jffs2_inode_info *f)
#endif
}
-#ifdef CONFIG_JFFS2_FS_DATAFLASH
-#define SECTOR_ADDR(x) ( ((unsigned long)(x) / (unsigned long)(c->sector_size)) * c->sector_size )
-#else
-#define SECTOR_ADDR(x) ( ((unsigned long)(x) & ~(c->sector_size-1)) )
-#endif
#define jffs2_is_readonly(c) (OFNI_BS_2SFFJ(c)->s_flags & MS_RDONLY)
#define jffs2_is_writebuffered(c) (c->wbuf != NULL)
-#if (!defined CONFIG_JFFS2_FS_NAND && !defined CONFIG_JFFS2_FS_NOR_ECC && !defined CONFIG_JFFS2_FS_DATAFLASH)
+#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_cleanmarker_oob(c) (0)
#define jffs2_write_nand_cleanmarker(c,jeb) (-EIO)
@@ -129,6 +125,7 @@ static inline void jffs2_init_inode_info(struct jffs2_inode_info *f)
#else /* NAND and/or ECC'd NOR support present */
+#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)
@@ -150,25 +147,16 @@ 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 */
-#ifdef CONFIG_JFFS2_FS_DATAFLASH
+
#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);
-#else
-#define jffs2_dataflash(c) (0)
-#define jffs2_dataflash_setup(c) (0)
-#define jffs2_dataflash_cleanup(c) do {} while (0)
-#endif /* DATAFLASH */
-#endif /* NAND */
+
+#endif /* WRITEBUFFER */
/* erase.c */
static inline void jffs2_erase_pending_trigger(struct jffs2_sb_info *c)
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