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由 Darrick J. Wong 提交于
Zorro Lang reports that generic/485 blows an assert on a filesystem with 512 byte blocks. The test tries to fallocate a post-eof extent at the maximum file size and calls insert range to shift the extents right by two blocks. On a 512b block filesystem this causes startoff to overflow the 54-bit startoff field, leading to the assert. Therefore, always check the rightmost extent to see if it would overflow prior to invoking the insert range machinery. Reported-by: zlang@redhat.com Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200137Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com> Reviewed-by: NAllison Henderson <allison.henderson@oracle.com> Reviewed-by: NChristoph Hellwig <hch@lst.de>
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