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Qu Wenruo
027bcfa64e
The following kernel commit introduced the bug: 51f395ad btrfs: Use right extent length when inserting overlap extent map. When btrfs commit race with btrfs_get_extent(), merge_extent_mapping() may build up a new extent which length overflows and cause extent map insert fail, causing the caller get a -EEXIST error. This regression is fixed by the following patches: btrfs: Fix and enhance merge_extent_mapping() to insert best fitted extent map btrfs: Fix the wrong condition judgment about subset extent map Cc: Filipe Manana <fdmanana@suse.com> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Reviewed-by: Filipe Manana <fdmanana@suse.com> Tested-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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3 lines
43 B
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