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mountlib: use procfs to validate mount on linux - #5593

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Current way of checking whether mountpoint has been already mounted (directory
list) can result in race if rclone runs under Automount (classic or systemd).

This patch adopts Linux ProcFS for the check. Note that mountpoint is considered
empty if it's tagged as "mounted" by autofs. Also ProcFS is used to check whether
rclone mount was successful (ie. tagged by a string containing "rclone").

On macOS/BSD where ProcFS is unavailable the old method is still used.

This patch also moves a few utility functions unchanged to utils.go:
CheckOverlap, CheckAllowings, SetVolumeName.
This commit is contained in:
Ivan Andreev
2021-07-24 16:27:48 +03:00
parent 68be24c88d
commit 8c10dee510
6 changed files with 200 additions and 96 deletions
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