diff options
| author |   Ryan Ding <ryan.ding@oracle.com> | 2016-03-25 14:20:58 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-25 16:37:42 -0700 |
| commit | 65c4db8c8282cd239f0ba3226cfe59cc9768193c (patch) | |
| tree | 382f13a751f8d82adc6b3a39951e8948d33365e3 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | ocfs2: use c_new to indicate newly allocated extents (diff) | |
| download | linux-dev-65c4db8c8282cd239f0ba3226cfe59cc9768193c.tar.xz linux-dev-65c4db8c8282cd239f0ba3226cfe59cc9768193c.zip | |
ocfs2: test target page before change it
To support direct io in ocfs2_write_begin_nolock & ocfs2_write_end_nolock.
Direct io data will not appear in buffer. The w_target_page member will
not be filled by direct io. So avoid to use it when it's NULL. Unlinke
buffer io and mmap, direct io will call write_begin with more than 1
page a time. So the target_index is not sufficient to describe the
actual data. change it to a range start at target_index, end in
end_index.
Signed-off-by: Ryan Ding <ryan.ding@oracle.com>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions