[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>
diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index e8c4374..bc6c999 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -7,7 +7,7 @@
*
* For licensing information, see the file 'LICENCE' in this directory.
*
- * $Id: scan.c,v 1.117 2005/02/09 09:17:41 pavlov Exp $
+ * $Id: scan.c,v 1.118 2005/02/09 09:23:53 pavlov Exp $
*
*/
#include <linux/kernel.h>
@@ -68,7 +68,7 @@
static inline int min_free(struct jffs2_sb_info *c)
{
uint32_t min = 2 * sizeof(struct jffs2_raw_inode);
-#if defined CONFIG_JFFS2_FS_NAND || defined CONFIG_JFFS2_FS_NOR_ECC || defined CONFIG_JFFS2_FS_DATAFLASH
+#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
if (!jffs2_can_mark_obsolete(c) && min < c->wbuf_pagesize)
return c->wbuf_pagesize;
#endif
@@ -228,7 +228,7 @@
c->dirty_size -= c->nextblock->dirty_size;
c->nextblock->dirty_size = 0;
}
-#if defined CONFIG_JFFS2_FS_NAND || defined CONFIG_JFFS2_FS_NOR_ECC || defined CONFIG_JFFS2_FS_DATAFLASH
+#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
if (!jffs2_can_mark_obsolete(c) && c->nextblock && (c->nextblock->free_size & (c->wbuf_pagesize-1))) {
/* If we're going to start writing into a block which already
contains data, and the end of the data isn't page-aligned,
@@ -294,7 +294,7 @@
uint32_t hdr_crc, buf_ofs, buf_len;
int err;
int noise = 0;
-#ifdef CONFIG_JFFS2_FS_NAND
+#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
int cleanmarkerfound = 0;
#endif
@@ -303,7 +303,7 @@
D1(printk(KERN_DEBUG "jffs2_scan_eraseblock(): Scanning block at 0x%x\n", ofs));
-#ifdef CONFIG_JFFS2_FS_NAND
+#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
if (jffs2_cleanmarker_oob(c)) {
int ret = jffs2_check_nand_cleanmarker(c, jeb);
D2(printk(KERN_NOTICE "jffs_check_nand_cleanmarker returned %d\n",ret));
@@ -338,7 +338,7 @@
ofs += 4;
if (ofs == EMPTY_SCAN_SIZE(c->sector_size)) {
-#ifdef CONFIG_JFFS2_FS_NAND
+#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
if (jffs2_cleanmarker_oob(c)) {
/* scan oob, take care of cleanmarker */
int ret = jffs2_check_oob_empty(c, jeb, cleanmarkerfound);