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author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-01-24 16:04:01 +0100 |
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committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-01-25 15:41:25 +0100 |
commit | 1b68d0eea5daddc762c54bf02154f4ad607d9ce8 (patch) | |
tree | e918b5d434da7213a7af8cff2b6bd692035f72cf /drivers/mtd | |
parent | UBI: do not change file pointer while updating (diff) | |
download | linux-1b68d0eea5daddc762c54bf02154f4ad607d9ce8.tar.xz linux-1b68d0eea5daddc762c54bf02154f4ad607d9ce8.zip |
UBI: simplify internal interfaces
Instead of passing vol_id to all functions and then find
struct ubi_volume, pass struct ubi_volume pointer.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r-- | drivers/mtd/ubi/cdev.c | 4 | ||||
-rw-r--r-- | drivers/mtd/ubi/ubi.h | 5 | ||||
-rw-r--r-- | drivers/mtd/ubi/upd.c | 63 |
3 files changed, 36 insertions, 36 deletions
diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c index d9bd49421cce..0c4044d6cae0 100644 --- a/drivers/mtd/ubi/cdev.c +++ b/drivers/mtd/ubi/cdev.c @@ -354,7 +354,7 @@ static ssize_t vol_cdev_write(struct file *file, const char __user *buf, if (!vol->updating) return vol_cdev_direct_write(file, buf, count, offp); - err = ubi_more_update_data(ubi, vol->vol_id, buf, count); + err = ubi_more_update_data(ubi, vol, buf, count); if (err < 0) { ubi_err("cannot write %zd bytes of update data, error %d", count, err); @@ -427,7 +427,7 @@ static int vol_cdev_ioctl(struct inode *inode, struct file *file, if (err < 0) break; - err = ubi_start_update(ubi, vol->vol_id, bytes); + err = ubi_start_update(ubi, vol, bytes); if (bytes == 0) revoke_exclusive(desc, UBI_READWRITE); break; diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h index a8cdbd0364fb..3a88cf1eaaa8 100644 --- a/drivers/mtd/ubi/ubi.h +++ b/drivers/mtd/ubi/ubi.h @@ -423,8 +423,9 @@ int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol); void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol); /* upd.c */ -int ubi_start_update(struct ubi_device *ubi, int vol_id, long long bytes); -int ubi_more_update_data(struct ubi_device *ubi, int vol_id, +int ubi_start_update(struct ubi_device *ubi, struct ubi_volume *vol, + long long bytes); +int ubi_more_update_data(struct ubi_device *ubi, struct ubi_volume *vol, const void __user *buf, int count); /* misc.c */ diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c index 3defa579fab0..59c61ab4f2aa 100644 --- a/drivers/mtd/ubi/upd.c +++ b/drivers/mtd/ubi/upd.c @@ -45,30 +45,30 @@ /** * set_update_marker - set update marker. * @ubi: UBI device description object - * @vol_id: volume ID + * @vol: volume description object * - * This function sets the update marker flag for volume @vol_id. Returns zero + * This function sets the update marker flag for volume @vol. Returns zero * in case of success and a negative error code in case of failure. */ -static int set_update_marker(struct ubi_device *ubi, int vol_id) +static int set_update_marker(struct ubi_device *ubi, struct ubi_volume *vol) { int err; struct ubi_vtbl_record vtbl_rec; - struct ubi_volume *vol = ubi->volumes[vol_id]; - dbg_msg("set update marker for volume %d", vol_id); + dbg_msg("set update marker for volume %d", vol->vol_id); if (vol->upd_marker) { - ubi_assert(ubi->vtbl[vol_id].upd_marker); + ubi_assert(ubi->vtbl[vol->vol_id].upd_marker); dbg_msg("already set"); return 0; } - memcpy(&vtbl_rec, &ubi->vtbl[vol_id], sizeof(struct ubi_vtbl_record)); + memcpy(&vtbl_rec, &ubi->vtbl[vol->vol_id], + sizeof(struct ubi_vtbl_record)); vtbl_rec.upd_marker = 1; mutex_lock(&ubi->volumes_mutex); - err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec); + err = ubi_change_vtbl_record(ubi, vol->vol_id, &vtbl_rec); mutex_unlock(&ubi->volumes_mutex); vol->upd_marker = 1; return err; @@ -77,23 +77,24 @@ static int set_update_marker(struct ubi_device *ubi, int vol_id) /** * clear_update_marker - clear update marker. * @ubi: UBI device description object - * @vol_id: volume ID + * @vol: volume description object * @bytes: new data size in bytes * - * This function clears the update marker for volume @vol_id, sets new volume + * This function clears the update marker for volume @vol, sets new volume * data size and clears the "corrupted" flag (static volumes only). Returns * zero in case of success and a negative error code in case of failure. */ -static int clear_update_marker(struct ubi_device *ubi, int vol_id, long long bytes) +static int clear_update_marker(struct ubi_device *ubi, struct ubi_volume *vol, + long long bytes) { int err; uint64_t tmp; struct ubi_vtbl_record vtbl_rec; - struct ubi_volume *vol = ubi->volumes[vol_id]; - dbg_msg("clear update marker for volume %d", vol_id); + dbg_msg("clear update marker for volume %d", vol->vol_id); - memcpy(&vtbl_rec, &ubi->vtbl[vol_id], sizeof(struct ubi_vtbl_record)); + memcpy(&vtbl_rec, &ubi->vtbl[vol->vol_id], + sizeof(struct ubi_vtbl_record)); ubi_assert(vol->upd_marker && vtbl_rec.upd_marker); vtbl_rec.upd_marker = 0; @@ -109,7 +110,7 @@ static int clear_update_marker(struct ubi_device *ubi, int vol_id, long long byt } mutex_lock(&ubi->volumes_mutex); - err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec); + err = ubi_change_vtbl_record(ubi, vol->vol_id, &vtbl_rec); mutex_unlock(&ubi->volumes_mutex); vol->upd_marker = 0; return err; @@ -118,23 +119,23 @@ static int clear_update_marker(struct ubi_device *ubi, int vol_id, long long byt /** * ubi_start_update - start volume update. * @ubi: UBI device description object - * @vol_id: volume ID + * @vol: volume description object * @bytes: update bytes * * This function starts volume update operation. If @bytes is zero, the volume * is just wiped out. Returns zero in case of success and a negative error code * in case of failure. */ -int ubi_start_update(struct ubi_device *ubi, int vol_id, long long bytes) +int ubi_start_update(struct ubi_device *ubi, struct ubi_volume *vol, + long long bytes) { int i, err; uint64_t tmp; - struct ubi_volume *vol = ubi->volumes[vol_id]; - dbg_msg("start update of volume %d, %llu bytes", vol_id, bytes); + dbg_msg("start update of volume %d, %llu bytes", vol->vol_id, bytes); vol->updating = 1; - err = set_update_marker(ubi, vol_id); + err = set_update_marker(ubi, vol); if (err) return err; @@ -146,7 +147,7 @@ int ubi_start_update(struct ubi_device *ubi, int vol_id, long long bytes) } if (bytes == 0) { - err = clear_update_marker(ubi, vol_id, 0); + err = clear_update_marker(ubi, vol, 0); if (err) return err; err = ubi_wl_flush(ubi); @@ -169,7 +170,7 @@ int ubi_start_update(struct ubi_device *ubi, int vol_id, long long bytes) /** * write_leb - write update data. * @ubi: UBI device description object - * @vol_id: volume ID + * @vol: volume description object * @lnum: logical eraseblock number * @buf: data to write * @len: data size @@ -195,11 +196,10 @@ int ubi_start_update(struct ubi_device *ubi, int vol_id, long long bytes) * This function returns zero in case of success and a negative error code in * case of failure. */ -static int write_leb(struct ubi_device *ubi, int vol_id, int lnum, void *buf, - int len, int used_ebs) +static int write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum, + void *buf, int len, int used_ebs) { int err, l; - struct ubi_volume *vol = ubi->volumes[vol_id]; if (vol->vol_type == UBI_DYNAMIC_VOLUME) { l = ALIGN(len, ubi->min_io_size); @@ -244,11 +244,10 @@ static int write_leb(struct ubi_device *ubi, int vol_id, int lnum, void *buf, * the last call if the whole volume update was successfully finished, and a * negative error code in case of failure. */ -int ubi_more_update_data(struct ubi_device *ubi, int vol_id, +int ubi_more_update_data(struct ubi_device *ubi, struct ubi_volume *vol, const void __user *buf, int count) { uint64_t tmp; - struct ubi_volume *vol = ubi->volumes[vol_id]; int lnum, offs, err = 0, len, to_write = count; dbg_msg("write %d of %lld bytes, %lld already passed", @@ -293,8 +292,8 @@ int ubi_more_update_data(struct ubi_device *ubi, int vol_id, * is the last chunk, it's time to flush the buffer. */ ubi_assert(flush_len <= vol->usable_leb_size); - err = write_leb(ubi, vol_id, lnum, vol->upd_buf, - flush_len, vol->upd_ebs); + err = write_leb(ubi, vol, lnum, vol->upd_buf, flush_len, + vol->upd_ebs); if (err) return err; } @@ -321,8 +320,8 @@ int ubi_more_update_data(struct ubi_device *ubi, int vol_id, if (len == vol->usable_leb_size || vol->upd_received + len == vol->upd_bytes) { - err = write_leb(ubi, vol_id, lnum, vol->upd_buf, len, - vol->upd_ebs); + err = write_leb(ubi, vol, lnum, vol->upd_buf, + len, vol->upd_ebs); if (err) break; } @@ -336,7 +335,7 @@ int ubi_more_update_data(struct ubi_device *ubi, int vol_id, ubi_assert(vol->upd_received <= vol->upd_bytes); if (vol->upd_received == vol->upd_bytes) { /* The update is finished, clear the update marker */ - err = clear_update_marker(ubi, vol_id, vol->upd_bytes); + err = clear_update_marker(ubi, vol, vol->upd_bytes); if (err) return err; err = ubi_wl_flush(ubi); |