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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2021-05-30 22:53:43 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2021-06-02 17:50:38 -0400 |
| commit | 9067931236651c8bde847d17a2f862d052e672b7 (patch) | |
| tree | 0cc421fee7d9cd6ad32a4d46ebf3b8d5395104f1 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | Linux 5.13-rc1 (diff) | |
| download | linux-dev-9067931236651c8bde847d17a2f862d052e672b7.tar.xz linux-dev-9067931236651c8bde847d17a2f862d052e672b7.zip | |
ntfs_copy_from_user_iter(): don't bother with copying iov_iter
Advance the original, let the caller revert if it needs to.
Don't mess with iov_iter_single_seg_count() in the caller -
if we got a (non-zero) short copy, use the amount actually
copied for the next pass, limit it to "up to the end
of page" if nothing got copied at all.
Originally fault-in only read the first iovec; back then it used
to make sense to limit to the just one iovec for the pass after
short copy. These days it's no long true.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions