linux-kernel - [PATCH 0/2] ipc/util.c: Cleanup and improve sysvipc_find

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Date:   Fri,  3 Sep 2021 07:20:18 +0200
From:   Manfred Spraul <manfred@...orfullife.com>
To:     LKML <linux-kernel@...r.kernel.org>,
        Davidlohr Bueso <dbueso@...e.de>,
        Waiman Long <llong@...hat.com>,
        Rafael Aquini <aquini@...hat.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>, 1vier1@....de,
        Manfred Spraul <manfred@...orfullife.com>
Subject: [PATCH 0/2] ipc/util.c: Cleanup and improve sysvipc_find_ipc(), V2

Update of the sysvipc_find_ipc() changes:

patch 01: 
	Unmodified patch from Rafael Aquini, already in mmotm.
	https://www.ozlabs.org/~akpm/mmotm/broken-out/ipc-replace-costly-bailout-check-in-sysvipc_find_ipc.patch
	
	Acked-by: Manfred Spraul <manfred@...orfullife.com>
	https://lore.kernel.org/lkml/42b60dd8-8393-5e0f-e576-da5303f29fe7@colorfullife.com/T/#m230673c8ef7261745e80ba458b9712bf1fad2251

patch 02:
	Performance improvement and further cleanup.

Especially, patch 02 tries to make sysvipc_find_ipc() more readable.

E.g.: There was a "+1" at the end of the function.
My first idea: "+1", as in "move to next".
No, the "+1" was "convert from index to pos".

@Andrew: Patch 01 is already in mmotm. Could you add
patch 02 to your tree and forward it as needed?

Thanks,
	Manfred