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gcc 4.9.0 gives a warning: format ‘%d’ expects argument of type ‘int’,
but argument 2 has type ‘u64’
Using %llu and casting to unsigned long long (same as bytenr) fixes this.
Signed-off-by: Christian Hesse <mail@eworm.de>
Signed-off-by: David Sterba <dsterba@suse.cz>
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Switch to new helper arg_strtou64(), also check if user assign
a valid super copy.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
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Trivial patch:
./btrfs-progs/btrfs-select-super -s 0 /dev/sdc
using SB copy 0, bytenr 65536
No valid Btrfs found on /dev/sdc
Open ctree failed
The line 'using..' is confusing which gives an
indication that command is successful
This patch will avoid that when command fails
Signed-off-by: Anand Jain <anand.jain@oracle.com>
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Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: David Sterba <dsterba@suse.cz>
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check_mounted() returns kernel-style negative errors.
Patch drops sign for strerror().
Before the patch:
check_mounted(): Could not open /dev/sdb2
Could not check mount status: Unknown error 18446744073709551603
After the patch:
check_mounted(): Could not open /dev/sdb2
Could not check mount status: Permission denied
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
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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>
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