UBI: add lnum and vol_id to struct ubi_work

This is part of a multipart patch to allow UBI to force the erasure of
particular logical eraseblock numbers. In this patch, the volume id and LEB
number are added to ubi_work data structure, and both are also passed as a
parameter to schedule erase to set it appropriately. Whenever ubi_wl_put_peb
is called, the lnum is also passed to be forwarded to schedule erase. Later,
a new ubi_sync_lnum will be added to execute immediately all work related to
that lnum.

This was tested by outputting the vol_id and lnum during the schedule of
erasure. The ubi thread was disabled and two ubifs drives on separate
partitions repeated changed a small number of LEBs. The ubi module was readded,
and all the erased LEBs, corresponding to the volumes, were added to the
schedule erase queue.

Artem: minor tweaks

Signed-off-by: Joel Reardon <reardonj@inf.ethz.ch>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

1 files changed, 8 insertions, 8 deletions

diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index 5fa726f..b703ac7 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -341,7 +341,7 @@ int ubi_eba_unmap_leb(struct ubi_device *ubi, struct ubi_volume *vol,
 	dbg_eba("erase LEB %d:%d, PEB %d", vol_id, lnum, pnum);
 
 	vol->eba_tbl[lnum] = UBI_LEB_UNMAPPED;
-	err = ubi_wl_put_peb(ubi, pnum, 0);
+	err = ubi_wl_put_peb(ubi, vol_id, lnum, pnum, 0);
 
 out_unlock:
 	leb_write_unlock(ubi, vol_id, lnum);
@@ -550,7 +550,7 @@ retry:
 	ubi_free_vid_hdr(ubi, vid_hdr);
 
 	vol->eba_tbl[lnum] = new_pnum;
-	ubi_wl_put_peb(ubi, pnum, 1);
+	ubi_wl_put_peb(ubi, vol_id, lnum, pnum, 1);
 
 	ubi_msg("data was successfully recovered");
 	return 0;
@@ -558,7 +558,7 @@ retry:
 out_unlock:
 	mutex_unlock(&ubi->buf_mutex);
 out_put:
-	ubi_wl_put_peb(ubi, new_pnum, 1);
+	ubi_wl_put_peb(ubi, vol_id, lnum, new_pnum, 1);
 	ubi_free_vid_hdr(ubi, vid_hdr);
 	return err;
 
@@ -568,7 +568,7 @@ write_error:
 	 * get another one.
 	 */
 	ubi_warn("failed to write to PEB %d", new_pnum);
-	ubi_wl_put_peb(ubi, new_pnum, 1);
+	ubi_wl_put_peb(ubi, vol_id, lnum, new_pnum, 1);
 	if (++tries > UBI_IO_RETRIES) {
 		ubi_free_vid_hdr(ubi, vid_hdr);
 		return err;
@@ -686,7 +686,7 @@ write_error:
 	 * eraseblock, so just put it and request a new one. We assume that if
 	 * this physical eraseblock went bad, the erase code will handle that.
 	 */
-	err = ubi_wl_put_peb(ubi, pnum, 1);
+	err = ubi_wl_put_peb(ubi, vol_id, lnum, pnum, 1);
 	if (err || ++tries > UBI_IO_RETRIES) {
 		ubi_ro_mode(ubi);
 		leb_write_unlock(ubi, vol_id, lnum);
@@ -804,7 +804,7 @@ write_error:
 		return err;
 	}
 
-	err = ubi_wl_put_peb(ubi, pnum, 1);
+	err = ubi_wl_put_peb(ubi, vol_id, lnum, pnum, 1);
 	if (err || ++tries > UBI_IO_RETRIES) {
 		ubi_ro_mode(ubi);
 		leb_write_unlock(ubi, vol_id, lnum);
@@ -901,7 +901,7 @@ retry:
 	}
 
 	if (vol->eba_tbl[lnum] >= 0) {
-		err = ubi_wl_put_peb(ubi, vol->eba_tbl[lnum], 0);
+		err = ubi_wl_put_peb(ubi, vol_id, lnum, vol->eba_tbl[lnum], 0);
 		if (err)
 			goto out_leb_unlock;
 	}
@@ -926,7 +926,7 @@ write_error:
 		goto out_leb_unlock;
 	}
 
-	err = ubi_wl_put_peb(ubi, pnum, 1);
+	err = ubi_wl_put_peb(ubi, vol_id, lnum, pnum, 1);
 	if (err || ++tries > UBI_IO_RETRIES) {
 		ubi_ro_mode(ubi);
 		goto out_leb_unlock;