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authorQu Wenruo <quwenruo@cn.fujitsu.com>2015-10-12 03:35:38 -0400
committerChris Mason <clm@fb.com>2015-10-21 21:37:44 -0400
commitfefdc55702a5f9f99778b6bdce4c4e1185ff943f (patch)
tree5200c727ca441747ae8c1d168962749bd25dbe48 /tools/perf/scripts/python/export-to-sqlite.py
parentd38ed27f0442c8cd520e093081127949d4bcf9bc (diff)
btrfs: extent_io: Introduce new function clear_record_extent_bits()
Introduce new function clear_record_extent_bits(), which will clear bits for given range and record the details about which ranges are cleared and how many bytes in total it changes. This provides the basis for later qgroup reserve codes. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
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