| commit | 687de7f1010cb819d04b768556960d3689abe02b | [log] [tgz] |
|---|---|---|
| author | Jaegeuk Kim <jaegeuk@kernel.org> | Tue Mar 28 18:07:38 2017 -0700 |
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | Wed Apr 05 11:05:06 2017 -0700 |
| tree | c32a4ccac2d084d51e2074e7184598bf4cd37349 | |
| parent | ef095d19e82f25bbdead472b8b71f4ef3b7a636d [diff] |
f2fs: avoid IO split due to mixed WB_SYNC_ALL and WB_SYNC_NONE If two threads try to flush dirty pages in different inodes respectively, f2fs_write_data_pages() will produce WRITE and WRITE_SYNC one at a time, resulting in a lot of 4KB seperated IOs. So, this patch gives higher priority to WB_SYNC_ALL IOs and gathers write IOs with a big WRITE_SYNC'ed bio. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>