A few bugfixes#10

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liubogithub wants to merge 7 commits intocloud-hypervisor:masterfrom

liubogithub:sync

Commits on Oct 21, 2020

server: trim extra '\0's in bytes_to_cstr()

eryugey
authored and
liubogithub
committed
fusedev: commit() no longer returns IoError

chuanlang.gcw
authored and
liubogithub
committed
passthroughfs: support "none" as cache policy

eryugey
authored and
liubogithub
committed
Fix readdirplus to send available Dirent on error
liubogithub
committed
passthroughfs: avoid extra lookup after readdirplus
liubogithub
committed
build: silent cllipy complaints.

Changwei Ge
authored and
liubogithub
committed
fix clippy errors
liubogithub
committed