From d05c77a816974c09f8c7e8f48e5b9f7b59dafdf3 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Mon, 17 Dec 2007 15:42:57 +0200 Subject: UBI: introduce volume refcounting Add ref_count field to UBI volumes and remove weired "vol->removed" field. This way things are better understandable and we do not have to do whold show_attr operation under spinlock. Signed-off-by: Artem Bityutskiy --- drivers/mtd/ubi/ubi.h | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) (limited to 'drivers/mtd/ubi/ubi.h') diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h index 69cbee3be7a4..f782d5aa849a 100644 --- a/drivers/mtd/ubi/ubi.h +++ b/drivers/mtd/ubi/ubi.h @@ -140,10 +140,10 @@ struct ubi_volume_desc; * @cdev: character device object to create character device * @ubi: reference to the UBI device description object * @vol_id: volume ID + * @ref_count: volume reference count * @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 - * @removed: if the volume was removed * @checked: if this static volume was checked * * @reserved_pebs: how many physical eraseblocks are reserved for this volume @@ -156,7 +156,7 @@ struct ubi_volume_desc; * @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 + * satisfy the requested alignment * @name_len: volume name length * @name: volume name * @@ -185,10 +185,10 @@ struct ubi_volume { struct cdev cdev; struct ubi_device *ubi; int vol_id; + int ref_count; int readers; int writers; int exclusive; - int removed; int checked; int reserved_pebs; @@ -242,9 +242,9 @@ struct ubi_wl_entry; * @vol_count: number of volumes in this UBI device * @volumes: volumes of this UBI device * @volumes_lock: protects @volumes, @rsvd_pebs, @avail_pebs, beb_rsvd_pebs, - * @beb_rsvd_level, @bad_peb_count, @good_peb_count, @vol_count, @vol->readers, - * @vol->writers, @vol->exclusive, @vol->removed, @vol->mapping and - * @vol->eba_tbl. + * @beb_rsvd_level, @bad_peb_count, @good_peb_count, @vol_count, + * @vol->readers, @vol->writers, @vol->exclusive, + * @vol->ref_count, @vol->mapping and @vol->eba_tbl. * * @rsvd_pebs: count of reserved physical eraseblocks * @avail_pebs: count of available physical eraseblocks @@ -273,11 +273,11 @@ struct ubi_wl_entry; * @prot.pnum: protection tree indexed by physical eraseblock numbers * @prot.aec: protection tree indexed by absolute erase counter value * @wl_lock: protects the @used, @free, @prot, @lookuptbl, @abs_ec, @move_from, - * @move_to, @move_to_put @erase_pending, @wl_scheduled, and @works - * fields + * @move_to, @move_to_put @erase_pending, @wl_scheduled, and @works + * fields * @wl_scheduled: non-zero if the wear-leveling was scheduled * @lookuptbl: a table to quickly find a &struct ubi_wl_entry object for any - * physical eraseblock + * physical eraseblock * @abs_ec: absolute erase counter * @move_from: physical eraseblock from where the data is being moved * @move_to: physical eraseblock where the data is being moved to @@ -308,13 +308,13 @@ struct ubi_wl_entry; * @hdrs_min_io_size * @vid_hdr_shift: contains @vid_hdr_offset - @vid_hdr_aloffset * @bad_allowed: whether the MTD device admits of bad physical eraseblocks or - * not + * not * @mtd: MTD device descriptor * * @peb_buf1: a buffer of PEB size used for different purposes * @peb_buf2: another buffer of PEB size used for different purposes * @buf_mutex: proptects @peb_buf1 and @peb_buf2 - * @dbg_peb_buf: buffer of PEB size used for debugging + * @dbg_peb_buf: buffer of PEB size used for debugging * @dbg_buf_mutex: proptects @dbg_peb_buf */ struct ubi_device { -- cgit v1.2.3