Jens Axboe f274495aea io_uring/kbuf: return correct iovec count from classic buffer peek ...

io_provided_buffers_select() returns 0 to indicate success, but it should
be returning 1 to indicate that 1 vec was mapped. This causes peeking
to fail with classic provided buffers, and while that's not a use case
that anyone should use, it should still work correctly.

The end result is that no buffer will be selected, and hence a completion
with '0' as the result will be posted, without a buffer attached.

Fixes: 35c8711c8f ("io_uring/kbuf: add helpers for getting/peeking multiple buffers")
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2024-08-30 10:45:54 -06:00

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advise.c

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advise.h

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alloc_cache.h

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cancel.c

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cancel.h

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epoll.c

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epoll.h

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eventfd.c

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eventfd.h

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fdinfo.c

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fdinfo.h

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filetable.c

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filetable.h

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fs.c

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fs.h

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futex.c

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futex.h

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io_uring.c

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io_uring.h

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io-wq.c

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io-wq.h

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kbuf.c

io_uring/kbuf: return correct iovec count from classic buffer peek

2024-08-30 10:45:54 -06:00

kbuf.h

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Makefile

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memmap.c

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memmap.h

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msg_ring.c

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msg_ring.h

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napi.c

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napi.h

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net.c

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net.h

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nop.c

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nop.h

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notif.c

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notif.h

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opdef.c

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opdef.h

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openclose.c

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openclose.h

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poll.c

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poll.h

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refs.h

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register.c

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register.h

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rsrc.c

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rsrc.h

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rw.c

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rw.h

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slist.h

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splice.c

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splice.h

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sqpoll.c

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sqpoll.h

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statx.c

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statx.h

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sync.c

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sync.h

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tctx.c

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tctx.h

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timeout.c

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timeout.h

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truncate.c

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truncate.h

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uring_cmd.c

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uring_cmd.h

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waitid.c

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waitid.h

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xattr.c

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xattr.h

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