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authorChris Mason <chris.mason@oracle.com>2010-12-09 16:36:29 -0500
committerChris Mason <chris.mason@oracle.com>2011-10-25 09:18:31 -0400
commitb4382217f18a27be16f9a960ac3b1327c87297e7 (patch)
tree0827570ecbaebaf234026bcec1e6885d0b373d95 /btrfs-show.c
parentfe7caa7c4a3bb738d3eb3ac6edaa24c8b38ec95f (diff)
Btrfs-progs: add a btrfs-select-super command to overwrite the super
Btrfs stores multiple copies of the superblock, and for common power-failure crashes where barriers were not in use, one of the super copies is often valid while the first copy is not. This adds a btrfs-select-super -s N /dev/xxx command, which can overwrite all the super blocks with a copy that you have already determined is valid with btrfsck -s Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'btrfs-show.c')
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