Commit Graph

3 Commits

Author SHA1 Message Date
Greg Kroah-Hartman c6479f19e2 ubifs: use default_groups in kobj_type
There are currently 2 ways to create a set of sysfs files for a
kobj_type, through the default_attrs field, and the default_groups
field.  Move the ubifs sysfs code to use default_groups field which has
been the preferred way since aa30f47cf6 ("kobject: Add support for
default attribute groups to kobj_type") so that we can soon get rid of
the obsolete default_attrs field.

Cc: Stefan Schaeckeler <schaecsn@gmx.net>
Cc: linux-mtd@lists.infradead.org
Acked-by: Richard Weinberger <richard@nod.at>
Link: https://lore.kernel.org/r/20220114104820.1340879-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-26 15:57:19 +01:00
Dan Carpenter d3de970bcb ubifs: fix snprintf() length check
The snprintf() function returns the number of bytes (not including the
NUL terminator) which would have been printed if there were enough
space.  So it can be greater than UBIFS_DFS_DIR_LEN.  And actually if
it equals UBIFS_DFS_DIR_LEN then that's okay so this check is too
strict.

Fixes: 9a620291fc01 ("ubifs: Export filesystem error counters")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-23 22:08:19 +01:00
Stefan Schaeckeler 2e3cbf4258 ubifs: Export filesystem error counters
Not all ubifs filesystem errors are propagated to userspace.

Export bad magic, bad node and crc errors via sysfs. This allows userspace
to notice filesystem errors:

 /sys/fs/ubifs/ubiX_Y/errors_magic
 /sys/fs/ubifs/ubiX_Y/errors_node
 /sys/fs/ubifs/ubiX_Y/errors_crc

The counters are reset to 0 with a remount.

Signed-off-by: Stefan Schaeckeler <sschaeck@cisco.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-23 20:23:42 +01:00