linux-kernel - [PATCH v1 0/2] Add read_poll_timeout

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Message-ID: <20250821035710.3692455-1-fujita.tomonori@gmail.com>
Date: Thu, 21 Aug 2025 12:57:08 +0900
From: FUJITA Tomonori <fujita.tomonori@...il.com>
To: a.hindborg@...nel.org,
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Subject: [PATCH v1 0/2] Add read_poll_timeout_atomic support

Add a helper function, read_poll_timeout_atomic() to poll periodically
until a condition is met or a timeout is reached.

Unlike read_poll_timeout(), read_poll_timeout_atomic() performs
busy-wait so it can be used in an atomic context.

This patchset can be applied on top of the read_poll_timeout patchset (v3) [1].

[1] https://lore.kernel.org/lkml/20250821002055.3654160-1-fujita.tomonori@gmail.com/

FUJITA Tomonori (2):
  rust: add udelay() function
  rust: Add read_poll_timeout_atomic function

 rust/helpers/time.c       |  5 +++
 rust/kernel/io/poll.rs    | 90 ++++++++++++++++++++++++++++++++++++++-
 rust/kernel/time/delay.rs | 34 +++++++++++++++
 3 files changed, 128 insertions(+), 1 deletion(-)


base-commit: a3b971f57db41ef1c68f842cd3c2c00b3df54ce4
-- 
2.43.0