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author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-01-16 14:24:14 +0200 |
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committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-01-25 16:41:24 +0200 |
commit | 896c0c06aa30147630e9a75949b6ae2014c841fc (patch) | |
tree | d34cbb7ed0995b92883311134e624b0d82686e4f /drivers/mtd/ubi | |
parent | ae616e1be13599c3b64e544ebe99e69ea851e99c (diff) | |
download | kernel_samsung_smdk4412-896c0c06aa30147630e9a75949b6ae2014c841fc.zip kernel_samsung_smdk4412-896c0c06aa30147630e9a75949b6ae2014c841fc.tar.gz kernel_samsung_smdk4412-896c0c06aa30147630e9a75949b6ae2014c841fc.tar.bz2 |
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>
Diffstat (limited to 'drivers/mtd/ubi')
-rw-r--r-- | drivers/mtd/ubi/ubi.h | 16 | ||||
-rw-r--r-- | drivers/mtd/ubi/vmt.c | 12 |
2 files changed, 9 insertions, 19 deletions
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 @@ struct ubi_volume_desc; * @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 @@ struct ubi_volume_desc; * @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 @@ struct ubi_volume { int readers; int writers; int exclusive; - int checked; int reserved_pebs; int vol_type; @@ -197,20 +196,21 @@ struct ubi_volume { 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 */ diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c index 177227e..221ce70 100644 --- a/drivers/mtd/ubi/vmt.c +++ b/drivers/mtd/ubi/vmt.c @@ -526,7 +526,6 @@ int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs) } spin_unlock(&ubi->volumes_lock); - /* Reserve physical eraseblocks */ pebs = reserved_pebs - vol->reserved_pebs; if (pebs > 0) { @@ -746,11 +745,6 @@ static void paranoid_check_volume(struct ubi_device *ubi, int vol_id) goto fail; } - if (vol->upd_marker != 0 && vol->upd_marker != 1) { - ubi_err("bad upd_marker"); - goto fail; - } - if (vol->upd_marker && vol->corrupted) { dbg_err("update marker and corrupted simultaneously"); goto fail; @@ -785,7 +779,7 @@ static void paranoid_check_volume(struct ubi_device *ubi, int vol_id) n = (long long)vol->used_ebs * vol->usable_leb_size; if (vol->vol_type == UBI_DYNAMIC_VOLUME) { - if (vol->corrupted != 0) { + if (vol->corrupted) { ubi_err("corrupted dynamic volume"); goto fail; } @@ -802,10 +796,6 @@ static void paranoid_check_volume(struct ubi_device *ubi, int vol_id) goto fail; } } else { - if (vol->corrupted != 0 && vol->corrupted != 1) { - ubi_err("bad corrupted"); - goto fail; - } if (vol->used_ebs < 0 || vol->used_ebs > vol->reserved_pebs) { ubi_err("bad used_ebs"); goto fail; |