Pls ignore this set as I am including these patches
along with other related changes.
Thanks, Anand
On 03/22/2018 09:01 PM, Anand Jain wrote:
v2->v1:
progs: update change log
Adds kernel check if there is a mismatch in the FSID
between primary and copy SB
The kernel patch here checks if all the SB copies are of the
same fsid.
The btrfs-progs patch zeros SB if found beyond blockcount.
mkfs.btrfs -b <blockcount>
** CAVEAT **
On the systems with only the below kernel patch but without the
btrfs-progs patch below, it shall return the btrfs scan error
as shown in the example below.
mkfs.btrfs -fq /dev/sdc
mkfs.btrfs -fq -b1G /dev/sdc
ERROR: device scan failed on '/dev/sdc': Invalid argument
The above error says, mkfs is fine but failed to register/scan
the device into the kernel. As the kernel now reports an error
if there is inconsistency in the SB fsid. To overcome this error
user can apply the btrfs-progs patch OR use dd it zero the stale
SB manually.
Anand Jain (1):
btrfs: check if the fsid in the primary sb and copy sb are same
fs/btrfs/volumes.c | 43 ++++++++++++++++++++++++++++++++-----------
1 file changed, 32 insertions(+), 11 deletions(-)
btrfs-progs: wipe stale sb copy beyond -b size
utils.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)
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