acl option silently ignored?

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I came across a debian bug report and confirmed that when you remount
- -o acl, dmesg shows ext4 acknowledging the remount with the acl option, but /proc/mounts does not show the acl option. Is this a kernel bug or is it intentional?

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The acl mount option is now defaulted on, so it's not a bug that if you specify the acl option, it won't get displayed in /proc/mounts. What *is* a bug is that if you specify "mount -o noacl", that doesn't show up in /proc/mounts.

Cheers,

- Ted