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authormichael <trimarchi@gandalf.sssup.it>2008-04-18 16:44:17 -0400
committerDavid Woodhouse <dwmw2@infradead.org>2008-04-22 07:35:50 -0400
commitcca15841710da39490abc17f56b55703e3140955 (patch)
tree7f91f721d9ad57e188b73db78c011f19f74b284d
parent0bc88c59cc2f031a38ad5902d5764497549217c5 (diff)
[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 <trimarchimichael@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
-rw-r--r--fs/jffs2/wbuf.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index d1d4f27464ba..ba49f19cff85 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -1236,12 +1236,24 @@ int jffs2_dataflash_setup(struct jffs2_sb_info *c) {
1236 if (!c->wbuf) 1236 if (!c->wbuf)
1237 return -ENOMEM; 1237 return -ENOMEM;
1238 1238
1239#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY
1240 c->wbuf_verify = kmalloc(c->wbuf_pagesize, GFP_KERNEL);
1241 if (!c->wbuf_verify) {
1242 kfree(c->oobbuf);
1243 kfree(c->wbuf);
1244 return -ENOMEM;
1245 }
1246#endif
1247
1239 printk(KERN_INFO "JFFS2 write-buffering enabled buffer (%d) erasesize (%d)\n", c->wbuf_pagesize, c->sector_size); 1248 printk(KERN_INFO "JFFS2 write-buffering enabled buffer (%d) erasesize (%d)\n", c->wbuf_pagesize, c->sector_size);
1240 1249
1241 return 0; 1250 return 0;
1242} 1251}
1243 1252
1244void jffs2_dataflash_cleanup(struct jffs2_sb_info *c) { 1253void jffs2_dataflash_cleanup(struct jffs2_sb_info *c) {
1254#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY
1255 kfree(c->wbuf_verify);
1256#endif
1245 kfree(c->wbuf); 1257 kfree(c->wbuf);
1246} 1258}
1247 1259