[bugfix] full file cache on XFS #297
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Signed-off-by: zhuangbowei.zbw <zhuangbowei.zbw@alibaba-inc.com>
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What this PR does / why we need it:
Something is wrong when writing exceeds a sparse file's virtual size on XFS, so we have to do
truncate()in advance to avoid this.Which issue(s) this PR fixes (optional, in
fixes #<issue number>(, fixes #<issue_number>, ...)format, will close the issue(s) when PR gets merged):Fixes #
Please check the following list: