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xfs: split the iomap ops for buffered vs direct writes

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Instead of lots of magic conditionals in the main write_begin
handler this make the intent very clear.  Thing will become even
better once we support delayed allocations for extent size hints
and realtime allocations.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig
2019-10-19 09:09:46 -07:00
committed by Darrick J. Wong
parent a526c85c22
commit f150b42343
6 changed files with 40 additions and 52 deletions
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4
fs/xfs/xfs_iops.c
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@@ -883,10 +883,10 @@ xfs_setattr_size(
if (newsize > oldsize) {
trace_xfs_zero_eof(ip, oldsize, newsize - oldsize);
error = iomap_zero_range(inode, oldsize, newsize - oldsize,
&did_zeroing, &xfs_iomap_ops);
&did_zeroing, &xfs_buffered_write_iomap_ops);
} else {
error = iomap_truncate_page(inode, newsize, &did_zeroing,
&xfs_iomap_ops);
&xfs_buffered_write_iomap_ops);
}
if (error)