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| author |   Abhi Das <adas@redhat.com> | 2016-11-16 21:44:23 -0600 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2016-11-17 00:00:48 -0500 |
| commit | 680bb946a1ae04fe0ff369a4965f76b48c07dc54 (patch) | |
| tree | be2ca455a6186b86a08e3ab1c22d49748cc6ed75 /tools/perf/scripts/python | |
| parent | xattr: Fix setting security xattrs on sockfs (diff) | |
| download | linux-dev-680bb946a1ae04fe0ff369a4965f76b48c07dc54.tar.xz linux-dev-680bb946a1ae04fe0ff369a4965f76b48c07dc54.zip | |
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 <adas@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions