UBI: use bit-fields
Save 12 bytes of RAM per volume by using bit-fields instead of integers.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 3cf1aa1..90cdcad 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -144,7 +144,6 @@
* @readers: number of users holding this volume in read-only mode
* @writers: number of users holding this volume in read-write mode
* @exclusive: whether somebody holds this volume in exclusive mode
- * @checked: if this static volume was checked
*
* @reserved_pebs: how many physical eraseblocks are reserved for this volume
* @vol_type: volume type (%UBI_DYNAMIC_VOLUME or %UBI_STATIC_VOLUME)
@@ -152,21 +151,22 @@
* @used_ebs: how many logical eraseblocks in this volume contain data
* @last_eb_bytes: how many bytes are stored in the last logical eraseblock
* @used_bytes: how many bytes of data this volume contains
- * @upd_marker: non-zero if the update marker is set for this volume
- * @corrupted: non-zero if the volume is corrupted (static volumes only)
* @alignment: volume alignment
* @data_pad: how many bytes are not used at the end of physical eraseblocks to
* satisfy the requested alignment
* @name_len: volume name length
* @name: volume name
*
- * @updating: whether the volume is being updated
* @upd_ebs: how many eraseblocks are expected to be updated
* @upd_bytes: how many bytes are expected to be received
* @upd_received: how many update bytes were already received
* @upd_buf: update buffer which is used to collect update data
*
* @eba_tbl: EBA table of this volume (LEB->PEB mapping)
+ * @checked: %1 if this static volume was checked
+ * @corrupted: %1 if the volume is corrupted (static volumes only)
+ * @upd_marker: %1 if the update marker is set for this volume
+ * @updating: %1 if the volume is being updated
*
* @gluebi_desc: gluebi UBI volume descriptor
* @gluebi_refcount: reference count of the gluebi MTD device
@@ -189,7 +189,6 @@
int readers;
int writers;
int exclusive;
- int checked;
int reserved_pebs;
int vol_type;
@@ -197,20 +196,21 @@
int used_ebs;
int last_eb_bytes;
long long used_bytes;
- int upd_marker;
- int corrupted;
int alignment;
int data_pad;
int name_len;
char name[UBI_VOL_NAME_MAX+1];
- int updating;
int upd_ebs;
long long upd_bytes;
long long upd_received;
void *upd_buf;
int *eba_tbl;
+ int checked:1;
+ int corrupted:1;
+ int upd_marker:1;
+ int updating:1;
#ifdef CONFIG_MTD_UBI_GLUEBI
/* Gluebi-related stuff may be compiled out */