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Add includes that let the header files compile or add explicit include
of kerncompat if the uXX types are used.
Signed-off-by: David Sterba <dsterba@suse.cz>
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There are missing ifdefs or defines with very generic names.
Signed-off-by: David Sterba <dsterba@suse.cz>
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The value of sector for space cache was hardcoded to 4k, and used to
calculate bitmap sizes. In kernel, the BITS_PER_BITMAP is derived from
PAGE_CACHE_SIZE which is not available for userspace, that can also deal
with filesystem of varying sectorsize.
Signed-off-by: David Sterba <dsterba@suse.cz>
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In trying to track down a weird tree log problem I wanted to make sure that the
free space cache was actually valid, which we currently have no way of doing.
So this patch adds a bunch of support for the free space cache code and then a
checker to fsck. Basically we go through and if we can actually load the free
space cache then we will walk the extent tree and verify that the free space
cache exactly matches what is in the extent tree. Hopefully this will always be
correct, the only time it wouldn't is if the extent tree is corrupt or we have
some sort of awful bug in the free space cache. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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