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| author | Jens Axboe <[email protected]> | 2020-05-01 19:11:09 +0000 |
|---|---|---|
| committer | Al Viro <[email protected]> | 2020-05-07 02:33:43 +0000 |
| commit | 12aceb89b0bce19eb89735f9de7a9983e4f0adae (patch) | |
| tree | 4c16eb79da308c962eb7e586e741275d9085a3a7 /tools/perf/scripts/python/sctop.py | |
| parent | Linux 5.7-rc1 (diff) | |
| download | kernel-12aceb89b0bce19eb89735f9de7a9983e4f0adae.tar.gz kernel-12aceb89b0bce19eb89735f9de7a9983e4f0adae.zip | |
eventfd: convert to f_op->read_iter()
eventfd is using ->read() as it's file_operations read handler, but
this prevents passing in information about whether a given IO operation
is blocking or not. We can only use the file flags for that. To support
async (-EAGAIN/poll based) retries for io_uring, we need ->read_iter()
support. Convert eventfd to using ->read_iter().
With ->read_iter(), we can support IOCB_NOWAIT. Ensure the fd setup
is done such that we set file->f_mode with FMODE_NOWAIT.
[missing include added]
Signed-off-by: Jens Axboe <[email protected]>
Signed-off-by: Al Viro <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/sctop.py')
0 files changed, 0 insertions, 0 deletions