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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2016-10-31 13:59:24 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-11-02 12:50:18 -0400 |
| commit | 2cefe4dbaadf83b236caab46705b4b5a4958e3b6 (patch) | |
| tree | bee7e525f1145ad55b6abd02f97d10222ae90cc9 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 13edd5e7315a26b448c5f7f33fc7721b1e0c17ef (diff) | |
block: add bio_iov_iter_get_pages()
This is a helper that pins down a range from an iov_iter and adds it to
a bio without requiring a separate memory allocation for the page array.
It will be used for upcoming direct I/O implementations for block devices
and iomap based file systems.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
[hch: ported to the iov_iter interface, renamed and added comments.
All blame should be directed to me and all fame should go to Kent
after this!]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions