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/openbmc/linux/fs/xfs/libxfs/
H A Dxfs_inode_fork.hc442f308 Fri Jan 22 18:48:14 CST 2021 Chandan Babu R <chandanrlinux@gmail.com> xfs: Check for extent overflow when writing to unwritten extent

A write to a sub-interval of an existing unwritten extent causes
the original extent to be split into 3 extents
i.e. | Unwritten | Real | Unwritten |
Hence extent count can increase by 2.

Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
/openbmc/linux/fs/xfs/
H A Dxfs_iomap.cc442f308 Fri Jan 22 18:48:14 CST 2021 Chandan Babu R <chandanrlinux@gmail.com> xfs: Check for extent overflow when writing to unwritten extent

A write to a sub-interval of an existing unwritten extent causes
the original extent to be split into 3 extents
i.e. | Unwritten | Real | Unwritten |
Hence extent count can increase by 2.

Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>