linux-kernel - Re: [PATCH] objtool: Add bch2_trans_unlocked_or_in_restart

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Message-ID: <20250220220806.cv6rnqefseckzlzm@jpoimboe>
Date: Thu, 20 Feb 2025 14:08:06 -0800
From: Josh Poimboeuf <jpoimboe@...nel.org>
To: Youling Tang <youling.tang@...ux.dev>
Cc: Peter Zijlstra <peterz@...radead.org>,
	Kent Overstreet <kent.overstreet@...ux.dev>,
	linux-kernel@...r.kernel.org, linux-bcachefs@...r.kernel.org,
	k2ci <kernel-bot@...inos.cn>, Youling Tang <tangyouling@...inos.cn>
Subject: Re: [PATCH] objtool: Add bch2_trans_unlocked_or_in_restart_error()
 to bcachefs noreturns

On Tue, Feb 18, 2025 at 02:42:30PM +0800, Youling Tang wrote:
> From: Youling Tang <tangyouling@...inos.cn>
> 
> Fix the following objtool warning during build time:
> fs/bcachefs/btree_cache.o: warning: objtool: btree_node_lock.constprop.0() falls through to next function bch2_recalc_btree_reserve()
> fs/bcachefs/btree_update.o: warning: objtool: bch2_trans_update_get_key_cache() falls through to next function need_whiteout_for_snapshot()
> 
> bch2_trans_unlocked_or_in_restart_error() is an Obviously Correct (tm)
> panic() wrapper, add it to the list of known noreturns.
> 
> Fixes: b318882022a8 ("bcachefs: bch2_trans_verify_not_unlocked_or_in_restart()")
> Reported-by: k2ci<kernel-bot@...inos.cn>
> Signed-off-by: Youling Tang <tangyouling@...inos.cn>

Acked-by: Josh Poimboeuf <jpoimboe@...nel.org>

Peter, can you take this one?

-- 
Josh