diff options
| author | Abhi Das <[email protected]> | 2016-11-16 21:44:23 -0600 |
|---|---|---|
| committer | Al Viro <[email protected]> | 2016-11-17 00:00:48 -0500 |
| commit | 680bb946a1ae04fe0ff369a4965f76b48c07dc54 (patch) | |
| tree | be2ca455a6186b86a08e3ab1c22d49748cc6ed75 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | 4a59015372840a6fc35d7fd40638a9d5dc3ec958 (diff) | |
fix iov_iter_advance() for ITER_PIPE
iov_iter_advance() needs to decrement iter->count by the number of
bytes we'd moved beyond. Normal flavours do that, but ITER_PIPE
doesn't and ITER_PIPE generic_file_read_iter() for O_DIRECT files
ends up with a bogus fallback to page cache read, resulting in incorrect
values for file offset and bytes read.
Signed-off-by: Abhi Das <[email protected]>
Signed-off-by: Al Viro <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions