On 03/28/2018 03:21 PM, Nikolay Borisov wrote:
On 28.03.2018 02:39, Anand Jain wrote:
During the scan context, we aren't verifying the superblock-
checksum when read.
This patch fixes it by adding the checksum verification function
btrfs_check_super_csum() in the function btrfs_read_disk_super().
And makes device scan to error fail if the primary superblock csum
is wrong, whereas if the copy-superblock csum is wrong it will just
just report mismatch and continue mount/scan as usual. When the
Where in this patch do you deal with the secondary sb.
btrfs_read_disk_super verifies only the primary sb which corresponds to
the first part of the sentence. But I'm confused about the second?
btrfs_read_disk_super() actaully reads and csum verifies the copy_num
as provided.
bytenr = btrfs_sb_offset(copy_num);
I also think that 4/8 should be merged into this one.
Right. I can do that.
Thanks, Anand
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