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由 Jeff Mahoney 提交于
commit 909c3a22 (Btrfs: fix loading of orphan roots leading to BUG_ON) avoids the BUG_ON but can add an aliased root to the dead_roots list or leak the root. Since we've already been loading roots into the radix tree, we should use it before looking the root up on disk. Cc: <stable@vger.kernel.org> # 4.5 Signed-off-by: NJeff Mahoney <jeffm@suse.com> Reviewed-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NDavid Sterba <dsterba@suse.com> Signed-off-by: NChris Mason <clm@fb.com>
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