sysfs: Add block and char subdirectories under /sys/dev#12858
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sysfs: Add block and char subdirectories under /sys/dev#12858copybara-service[bot] merged 2 commits intomasterfrom
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gVisor does not expose real block/char devices, the directories remain empty, but their existence is required for compatibility. Tools like lsblk expect /sys/dev/block/ to exist in order to enumerate block devices. Currently, gVisor's sysfs creates /sys/dev/ as an empty directory without the standard block/ and char/ children, causing lsblk to fail with ENOENT. Signed-off-by: Tan Yifeng <yiftan@tencent.com>
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sysfs: Add block and char subdirectories under /sys/dev
gVisor does not expose real block/char devices, the directories remain empty, but their existence is required for compatibility.
Tools like lsblk expect /sys/dev/block/ to exist in order to enumerate block devices. Currently, gVisor's sysfs creates /sys/dev/ as an empty directory without the standard block/ and char/ children, causing lsblk to fail with ENOENT.
FUTURE_COPYBARA_INTEGRATE_REVIEW=#12813 from tanyifeng:add-dev-block-char 7b59546