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ch9: 2device-driver-3 成员变量 `avail_idx` 是可用环索引 #193

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h888866j opened this issue Jul 9, 2023 · 0 comments

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h888866j commented Jul 9, 2023

virtio_blk块设备驱动程序 - rCore-Tutorial-Book-v3 3.6.0-alpha.1 文档

其中成员变量 free_head 指空闲描述符链表头，初始时所有描述符通过 next 指针依次相连形成空闲链表，成员变量 last_used_idx 是指设备上次已取的已用环元素位置。成员变量 avail_idx 是指设备上次已取的已用环元素位置。

成员变量 avail_idx 是指设备上次已取的已用环元素位置。已在pr #191 中建议修改成成员变量 avail_idx 是可用环的索引值。如果可以，建议将其换成更具有解释性的描述

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h888866j mentioned this issue

Fix typos in ch1,ch3-9 #191

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