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Message-Id: <20241024131325.2250880-1-yukuai1@huaweicloud.com> Date: Thu, 24 Oct 2024 21:13:21 +0800 From: Yu Kuai <yukuai1@...weicloud.com> To: song@...nel.org Cc: linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org, yukuai3@...wei.com, yukuai1@...weicloud.com, yi.zhang@...wei.com, yangerkun@...wei.com Subject: [PATCH RFC 0/4] md/md-bitmap: support to build md-bitmap as kernel module From: Yu Kuai <yukuai3@...wei.com> Now that all implementations are internal, it's sensible to build it as kernel module now. Currently, if md-bitmap is build as module and the module is not loaded, creating new array will try to load the module, regardless that bitmap is used or not. There are still lots of cleanups to prevent deferencing "mddev->bitmap_ops" for the array without bitmap. Yu Kuai (4): md/md-bitmap: remove the parameter 'init' for bitmap_ops->resize() md/md-bitmap: merge md_bitmap_group into bitmap_operations md: export some helpers md/md-bitmap: support to build md-bitmap as kernel module drivers/md/Kconfig | 15 +++++ drivers/md/Makefile | 4 +- drivers/md/dm-raid.c | 2 +- drivers/md/md-bitmap.c | 38 +++++++++++-- drivers/md/md-bitmap.h | 13 +++-- drivers/md/md-cluster.c | 2 +- drivers/md/md.c | 118 +++++++++++++++++++++++++++++++++------- drivers/md/md.h | 12 +++- drivers/md/raid1.c | 2 +- drivers/md/raid10.c | 8 +-- drivers/md/raid5.c | 2 +- 11 files changed, 172 insertions(+), 44 deletions(-) -- 2.39.2
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