io_uring/rsrc: Drop io_copy_iov in favor of iovec API

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Instead of open coding an io_uring function to copy iovs from userspace,
rely on the existing iovec_from_user function.  While there, avoid
repeatedly zeroing the iov in the !arg case for io_sqe_buffer_register.

tested with liburing testsuite.

Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
Link: https://lore.kernel.org/r/20240523214535.31890-1-krisman@suse.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Gabriel Krisman Bertazi 2024-05-23 17:45:35 -04:00 • committed by Jens Axboe

parent 81cc927d9c

commit f4eaf8eda8

1 changed files with 21 additions and 39 deletions

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io_uring/rsrc.c

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