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docs: futex2: fix documented errno names for futex_waitv

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The documentation cited -EAGAIN and -ETIMEOUT, but futex_waitv()
returns -EWOULDBLOCK on value mismatch and -ETIMEDOUT when the
timeout expires, per kernel/futex/waitwake.c.

Signed-off-by: Iván Ezequiel Rodriguez <ivanrwcm25@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260831143125.151360-2-ivanrwcm25@gmail.com>
This commit is contained in:
Iván Ezequiel Rodriguez 2026-08-31 11:31:19 -03:00 committed by Jonathan Corbet
parent 5c11629e62
commit baab8aa73d
1 changed files with 2 additions and 2 deletions
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4
Documentation/userspace-api/futex2.rst
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@ -51,10 +51,10 @@ future extension.
For each entry in ``waiters`` array, the current value at ``uaddr`` is compared
to ``val``. If it's different, the syscall undo all the work done so far and
return ``-EAGAIN``. If all tests and verifications succeeds, syscall waits until
return ``-EWOULDBLOCK``. If all tests and verifications succeeds, syscall waits until
one of the following happens:
- The timeout expires, returning ``-ETIMEOUT``.
- The timeout expires, returning ``-ETIMEDOUT``.
- A signal was sent to the sleeping task, returning ``-ERESTARTSYS``.
- Some futex at the list was woken, returning the index of some waked futex.