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authorAdrian Hunter <adrian.hunter@nokia.com>2009-06-26 07:58:01 -0400
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2009-07-05 11:47:07 -0400
commit0c6c7fa1313fcb69cae35e34168d2e83b8da854a (patch)
tree5ba3c6eda144b060829529096f30c6f83e357d5b /drivers/mtd/ubi/ubi.h
parent1398788fe7b730db10e97dcb9f838603e41922d5 (diff)
UBI: add image sequence number to EC header
An image sequence number is added to the UBI erase-counter header to be able determine if the root file system contains a mixture of old and new images (because the flashing failed to complete). A change to nolo is also needed for this to take effect. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/ubi/ubi.h')
-rw-r--r--drivers/mtd/ubi/ubi.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 28acd133c997..bb372c4222b7 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -301,6 +301,8 @@ struct ubi_wl_entry;
301 * @vol->readers, @vol->writers, @vol->exclusive, 301 * @vol->readers, @vol->writers, @vol->exclusive,
302 * @vol->ref_count, @vol->mapping and @vol->eba_tbl. 302 * @vol->ref_count, @vol->mapping and @vol->eba_tbl.
303 * @ref_count: count of references on the UBI device 303 * @ref_count: count of references on the UBI device
304 * @image_seq: image sequence number recorded on EC headers
305 * @image_seq_set: indicates @image_seq is known
304 * 306 *
305 * @rsvd_pebs: count of reserved physical eraseblocks 307 * @rsvd_pebs: count of reserved physical eraseblocks
306 * @avail_pebs: count of available physical eraseblocks 308 * @avail_pebs: count of available physical eraseblocks
@@ -390,6 +392,8 @@ struct ubi_device {
390 struct ubi_volume *volumes[UBI_MAX_VOLUMES+UBI_INT_VOL_COUNT]; 392 struct ubi_volume *volumes[UBI_MAX_VOLUMES+UBI_INT_VOL_COUNT];
391 spinlock_t volumes_lock; 393 spinlock_t volumes_lock;
392 int ref_count; 394 int ref_count;
395 int image_seq;
396 int image_seq_set;
393 397
394 int rsvd_pebs; 398 int rsvd_pebs;
395 int avail_pebs; 399 int avail_pebs;