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authorJan Kara <jack@suse.cz>2013-04-11 23:56:53 -0400
committerTheodore Ts'o <tytso@mit.edu>2013-04-11 23:56:53 -0400
commit4eec708d263f0ee10861d69251708a225b64cac7 (patch)
tree2db2d3f0431d98ed83d7e7ad8fbeaca7d7a2dcc2 /tools/perf/scripts/python
parent0058f9658c94037173f7603fc8bae2007cc10253 (diff)
ext4: use io_end for multiple bios
Change writeback path to create just one io_end structure for the extent to which we submit IO and share it among bios writing that extent. This prevents needless splitting and joining of unwritten extents when they cannot be submitted as a single bio. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Dmitry Monakhov <dmonakhov@openvz.org> Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
Diffstat (limited to 'tools/perf/scripts/python')
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