user/sven/linux.git/drivers/mtd/ubi/cdev.c, branch v4.20

ubi: expose the volume CRC check skip flag

2018-08-14T22:25:21Z

Now that we have the logic for skipping CRC check for static UBI volumes in the core, let's expose it to users. This makes use of a padding byte in the volume description data structure as a flag. This flag only tell for now whether we should skip the CRC check of a volume. This checks the UBI volume for which we are trying to skip the CRC check is static. Let's also make sure that the flags passed to verify_mkvol_req are valid. We voluntarily do not take into account the skip_check flag in vol_cdev_write() as we want to make sure what we wrote was correctly written. Suggested-by: Boris Brezillon Signed-off-by: Quentin Schulz Reviewed-by: Boris Brezillon Signed-off-by: Richard Weinberger

UBI: add an helper to check lnum validity

2016-10-02T20:48:14Z

ubi_leb_valid() is here to replace the lnum < 0 || lnum >= vol->reserved_pebs checks. Signed-off-by: Boris Brezillon Signed-off-by: Richard Weinberger

UBI: use vol->usable_leb_size instead of (ubi->leb_size - vol->data_pad)

2016-10-02T20:48:14Z

vol->usable_size is already set to ubi->leb_size - vol->data_pad. Use vol->usable_size instead of recalculating it. Signed-off-by: Boris Brezillon Signed-off-by: Richard Weinberger

wrappers for ->i_mutex access

2016-01-22T23:04:28Z

parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested}, inode_foo(inode) being mutex_foo(&inode->i_mutex). Please, use those for access to ->i_mutex; over the coming cycle ->i_mutex will become rwsem, with ->lookup() done with it held only shared. Signed-off-by: Al Viro

UBI: Remove in vain semicolon

2015-11-06T22:26:51Z

...found while browsing. Signed-off-by: Richard Weinberger

UBI: fix check for "too many bytes"

2015-03-26T11:07:18Z

The comparison from the previous line seems to have been erroneously (partially) copied-and-pasted onto the next. The second line should be checking req.bytes, not req.lnum. Coverity CID #139400 Cc: stable Signed-off-by: Brian Norris [rw: Fixed comparison] Signed-off-by: Richard Weinberger

UBI: extend UBI layer debug/messaging capabilities - cosmetics

2015-01-28T15:09:09Z

Some cosmetic fixes to the patch "UBI: Extend UBI layer debug/messaging capabilities". Signed-off-by: Tanya Brokhman Signed-off-by: Artem Bityutskiy

UBI: rename_volumes: Use UBI_METAONLY

2015-01-28T14:57:13Z

By using UBI_METAONLY in rename_volumes() it is now possible to rename an UBI volume atomically while it is open for writing. This is useful for firmware upgrades. Cc: Ezequiel Garcia Cc: Andrew Murray Signed-off-by: Richard Weinberger Tested-by: Guido Martínez Reviewed-by: Guido Martínez Tested-by: Christoph Fritz Tested-by: Andrew Murray

UBI: Implement UBI_METAONLY

2015-01-28T14:57:04Z

UBI_METAONLY is a new open mode for UBI volumes, it indicates that only meta data is being changed. Meta data in terms of UBI volumes means data which is stored in the UBI volume table but not on the volume itself. While it does not interfere with UBI_READONLY and UBI_READWRITE it is not allowed to use UBI_METAONLY together with UBI_EXCLUSIVE. Cc: Ezequiel Garcia Cc: Andrew Murray Signed-off-by: Richard Weinberger Tested-by: Guido Martínez Reviewed-by: Guido Martínez Tested-by: Christoph Fritz Tested-by: Andrew Murray

UBI: Extend UBI layer debug/messaging capabilities

2014-11-07T10:08:51Z

If there is more then one UBI device mounted, there is no way to distinguish between messages from different UBI devices. Add device number to all ubi layer message types. The R/O block driver messages were replaced by pr_* since ubi_device structure is not used by it. Amended a bit by Artem. Signed-off-by: Tanya Brokhman Signed-off-by: Artem Bityutskiy