From cca15841710da39490abc17f56b55703e3140955 Mon Sep 17 00:00:00 2001 From: michael Date: Fri, 18 Apr 2008 13:44:17 -0700 Subject: [JFFS2] add write verify on dataflash. Add the write verification buffer to the dataflash. The mtd_dataflash has the CONFIG_DATAFLASH_WRITE_VERIFY so is better a change to Kconfig. Signed-off-by: Michael Trimarchi Signed-off-by: Andrew Morton Signed-off-by: David Woodhouse --- fs/jffs2/wbuf.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'fs/jffs2') diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index d1d4f27464b..ba49f19cff8 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -1236,12 +1236,24 @@ int jffs2_dataflash_setup(struct jffs2_sb_info *c) { if (!c->wbuf) return -ENOMEM; +#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY + c->wbuf_verify = kmalloc(c->wbuf_pagesize, GFP_KERNEL); + if (!c->wbuf_verify) { + kfree(c->oobbuf); + kfree(c->wbuf); + return -ENOMEM; + } +#endif + printk(KERN_INFO "JFFS2 write-buffering enabled buffer (%d) erasesize (%d)\n", c->wbuf_pagesize, c->sector_size); return 0; } void jffs2_dataflash_cleanup(struct jffs2_sb_info *c) { +#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY + kfree(c->wbuf_verify); +#endif kfree(c->wbuf); } -- cgit v1.2.3