[PATCH v2 11/17] drivers:mtd:ubi:add disable/enable bakvol while ubi write

[Bean Huo]

From: Bean Huo <bean...@micron.com>

This patch is to modify ubi write action, add disable/enable backup operation 
according
to data type. For EC header, VID header,master node,super block writing,
bakvol module will not backup these data into bakvol volume.

Signed-off-by: BeanHuo <bean...@micron.com>
---
 drivers/mtd/ubi/eba.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index 51bca03..0f1f8a5 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -604,7 +604,7 @@ retry:
 
        memcpy(ubi->peb_buf + offset, buf, len);
 
-       err = ubi_io_write_data(ubi, ubi->peb_buf, new_pnum, 0, data_size);
+       err = ubi_io_write_data(ubi, ubi->peb_buf, new_pnum, 0, data_size, 0);
        if (err) {
                mutex_unlock(&ubi->buf_mutex);
                up_read(&ubi->fm_eba_sem);
@@ -675,7 +675,7 @@ int ubi_eba_write_leb(struct ubi_device *ubi, struct 
ubi_volume *vol, int lnum,
                dbg_eba("write %d bytes at offset %d of LEB %d:%d, PEB %d",
                        len, offset, vol_id, lnum, pnum);
 
-               err = ubi_io_write_data(ubi, buf, pnum, offset, len);
+               err = ubi_io_write_data(ubi, buf, pnum, offset, len, ((lnum < 
3) ? 0 : 1));
                if (err) {
                        ubi_warn(ubi, "failed to write data to PEB %d", pnum);
                        if (err == -EIO && ubi->bad_allowed)
@@ -726,7 +726,7 @@ retry:
        }
 
        if (len) {
-               err = ubi_io_write_data(ubi, buf, pnum, offset, len);
+               err = ubi_io_write_data(ubi, buf, pnum, offset, len, ((lnum < 
3) ? 0 : 1));
                if (err) {
                        ubi_warn(ubi, "failed to write %d bytes at offset %d of 
LEB %d:%d, PEB %d",
                                 len, offset, vol_id, lnum, pnum);
@@ -848,7 +848,7 @@ retry:
                goto write_error;
        }
 
-       err = ubi_io_write_data(ubi, buf, pnum, 0, len);
+       err = ubi_io_write_data(ubi, buf, pnum, 0, len, ((lnum < 3) ? 0:1));
        if (err) {
                ubi_warn(ubi, "failed to write %d bytes of data to PEB %d",
                         len, pnum);
@@ -968,7 +968,7 @@ retry:
                goto write_error;
        }
 
-       err = ubi_io_write_data(ubi, buf, pnum, 0, len);
+       err = ubi_io_write_data(ubi, buf, pnum, 0, len, ((lnum < 3) ? 0 : 1));
        if (err) {
                ubi_warn(ubi, "failed to write %d bytes of data to PEB %d",
                         len, pnum);
@@ -1194,7 +1194,8 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, 
int to,
        }
 
        if (data_size > 0) {
-               err = ubi_io_write_data(ubi, ubi->peb_buf, to, 0, aldata_size);
+               err = ubi_io_write_data(ubi, ubi->peb_buf, to, 0, aldata_size,
+                       ((lnum < 3) ? 0 : 1));
                if (err) {
                        if (err == -EIO)
                                err = MOVE_TARGET_WR_ERR;
-- 
1.9.1