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authorYu Kuai2023-11-25 16:16:02 +0800
committerSong Liu2023-11-27 15:49:05 -0800
commit2d32777d60de81aa020a2431567020af26564c71 (patch)
tree3dad0d0028d6b6510a59178c826301c12b89ce20 /.cocciconfig
parenta448af25becf4b555660b5ba2618c7ed3c4de6da (diff)
md/raid1: remove rcu protection to access rdev from conf
Because it's safe to accees rdev from conf: - If any spinlock is held, because synchronize_rcu() from md_kick_rdev_from_array() will prevent 'rdev' to be freed until spinlock is released; - If 'reconfig_lock' is held, because rdev can't be added or removed from array; - If there is normal IO inflight, because mddev_suspend() will prevent rdev to be added or removed from array; - If there is sync IO inflight, because 'MD_RECOVERY_RUNNING' is checked in remove_and_add_spares(). And these will cover all the scenarios in raid1. Signed-off-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/r/20231125081604.3939938-4-yukuai1@huaweicloud.com
Diffstat (limited to '.cocciconfig')
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