Before this patchset, btrfs-progs will overall ignore the superblock
checksum and continue the routine.
Sometimes this may cause disasters like checking a btrfs with corrupted
superblock will lead to crash in btrfs-progs.
This patch introduces superblock checksum check into btrfs_read_dev_super(),
making btrfs-progs much more restricted and robust.
To allow super-recover to open devices, add options to scan all 3
superblocks when using super-recover.
Also updated the related error string and fix a bug in chunk-recover that
will not be triggered until superblock csum is calculated.
Qu Wenruo (4):
btrfs-progs: Check superblock's checsum when read dev super
btrfs-progs: Allow btrfs_read_dev_super() to read all 3 super for
super_recover.
btrfs-progs: Add more meaningful return value for
btrfs_read_dev_super() and corresponding error string.
btrfs-progs: Fix size for malloc for superblock checksum.
btrfs-find-root.c | 9 ++++--
chunk-recover.c | 18 +++++++----
cmds-filesystem.c | 9 ++++--
disk-io.c | 91 +++++++++++++++++++++++++++++++++++++------------------
disk-io.h | 5 +--
super-recover.c | 2 +-
utils.c | 16 ++++++----
volumes.c | 8 ++---
volumes.h | 2 +-
9 files changed, 104 insertions(+), 56 deletions(-)
--
2.0.1
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