Since commit c11e36a29e ("Btrfs-progs: Do not force mixed block group
creation unless '-M' option is specified"), mkfs no longer use mixed
block group unless specified manually.
This breaks the minimal device size calculation, which only considered
mixed block group use case.
This patch enhances minimal device size calculation for mkfs, by using
different minimal stripe length (calculated from code) for different
profiles, and use them to calculate minimal device size.
Reported-by: Wesley Aptekar-Cassels <W.Aptekar@gmail.com>
Fixes: c11e36a29e ("Btrfs-progs: Do not force mixed block group creation unless '-M' option is specified")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
[ updated comments ]
Signed-off-by: David Sterba <dsterba@suse.com>
Currently, only the status of block devices is checked at mkfs,
but we should also check for regular files whether they are already
formatted or mounted to prevent overwrite accidentally.
Device status is checked by test_dev_for_mkfs().
The part which is not related to block device is split from this
and used for both block device and regular file.
Signed-off-by: Tomohiro Misono <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
test_minimum_size() function is only called to check if provided device
is large enough.
However the minimal device size only needs to be calculated once, and
can be reused everywhere.
Refactor that function to make later modification easier.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
For code maintainability and scalability,
replace hardcoded constant with a meaningful enum.
Signed-off-by: Gu Jinxiang <gujx@cn.fujitsu.com>
[ add MKFS_ prefix ]
Signed-off-by: David Sterba <dsterba@suse.com>
The caller of make_btrfs does not need to set it, it's for internal use
and can be read after mkfs ends.
Signed-off-by: David Sterba <dsterba@suse.com>
Yevgeny Popovych
Qu Wenruo
Misono, Tomohiro
Gu Jinxiang
David Sterba