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| author | Caleb Sander Mateos <[email protected]> | 2025-03-21 18:48:17 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2025-03-21 18:53:23 +0000 |
| commit | 8e3100fcc5cbba03518b8b5c059624aba5c29d50 (patch) | |
| tree | 97ab862f6fae88fbe60360c5c70eea352fd0c0da /drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c | |
| parent | io_uring/cmd: introduce io_uring_cmd_import_fixed_vec (diff) | |
| download | kernel-8e3100fcc5cbba03518b8b5c059624aba5c29d50.tar.gz kernel-8e3100fcc5cbba03518b8b5c059624aba5c29d50.zip | |
io_uring/net: only import send_zc buffer once
io_send_zc() guards its call to io_send_zc_import() with if (!done_io)
in an attempt to avoid calling it redundantly on the same req. However,
if the initial non-blocking issue returns -EAGAIN, done_io will stay 0.
This causes the subsequent issue to unnecessarily re-import the buffer.
Add an explicit flag "imported" to io_sr_msg to track if its buffer has
already been imported. Clear the flag in io_send_zc_prep(). Call
io_send_zc_import() and set the flag in io_send_zc() if it is unset.
Signed-off-by: Caleb Sander Mateos <[email protected]>
Fixes: 54cdcca05abd ("io_uring/net: switch io_send() and io_send_zc() to using io_async_msghdr")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_isp.c')
0 files changed, 0 insertions, 0 deletions