JFFS2: add UBI support

[linux-2.6] / fs / jffs2 / wbuf.c

diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index 23028b384418e14e0f84e9ca46180ecdf1141207..ab86031b3c07c314774a8df7627fe286a598868f 100644 (file)
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -1090,7 +1090,7 @@ int jffs2_write_nand_badblock(struct jffs2_sb_info *c, struct jffs2_eraseblock *
        if (!c->mtd->block_markbad)
                return 1; // What else can we do?
 
-       D1(printk(KERN_WARNING "jffs2_write_nand_badblock(): Marking bad block at %08x\n", bad_offset));
+       printk(KERN_WARNING "JFFS2: marking eraseblock at %08x\n as bad", bad_offset);
        ret = c->mtd->block_markbad(c->mtd, bad_offset);
 
        if (ret) {
@@ -1208,3 +1208,27 @@ int jffs2_nor_wbuf_flash_setup(struct jffs2_sb_info *c) {
 void jffs2_nor_wbuf_flash_cleanup(struct jffs2_sb_info *c) {
        kfree(c->wbuf);
 }
+
+int jffs2_ubivol_setup(struct jffs2_sb_info *c) {
+       c->cleanmarker_size = 0;
+
+       if (c->mtd->writesize == 1)
+               /* We do not need write-buffer */
+               return 0;
+
+       init_rwsem(&c->wbuf_sem);
+
+       c->wbuf_pagesize =  c->mtd->writesize;
+       c->wbuf_ofs = 0xFFFFFFFF;
+       c->wbuf = kmalloc(c->wbuf_pagesize, GFP_KERNEL);
+       if (!c->wbuf)
+               return -ENOMEM;
+
+       printk(KERN_INFO "JFFS2 write-buffering enabled buffer (%d) erasesize (%d)\n", c->wbuf_pagesize, c->sector_size);
+
+       return 0;
+}
+
+void jffs2_ubivol_cleanup(struct jffs2_sb_info *c) {
+       kfree(c->wbuf);
+}