linux-kernel - RE: [PATCH md-6.13 4/5] md/raid5: implement pers->bitmap

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Message-ID: <20241119094929.148060-1-jinpu.wang@ionos.com>
Date: Tue, 19 Nov 2024 10:49:29 +0100
From: Jack Wang <jinpu.wang@...os.com>
To: yukuai1@...weicloud.com
Cc: linux-kernel@...r.kernel.org,
	linux-raid@...r.kernel.org,
	song@...nel.org,
	xni@...hat.com,
	yangerkun@...wei.com,
	yi.zhang@...wei.com,
	yukuai3@...wei.com
Subject: RE:  [PATCH md-6.13 4/5] md/raid5: implement pers->bitmap_sector() 

Hi Kuai,

Thanks for the patchset, as you mentioned both both hung problem regarding raid5
bitmap, just want to get confirmation, will this patchset fix the hung or just a
performance improvement/code cleanup?

In patch4, as you removed the set/clear bit STRIPE_BITMAP_PENDING, I think you
should also remove the test_bit line in stripe_can_batch, also the definition 
enum in raif5.h and the few lines in comments in __add_stripe_bio, same for the
line in break_stripe_batch_list.

Regards!
Jinpu Wang @ IONOS