Disk needs repaired... but it doesn't? I've been noticing some oddities with my computer lately. Applications running slower than normal. Hanging. I decide to run Disk Utility and I get the following statement:



So I do what it says and restart my computer. Once it restarts, I hold CMD + R until the Apple logo appears. Once the OS X Utilities window comes up, I select Disk Utility. I proceed to select my Mac HD, run Verify Disk and then Repair Disk. Both say they're "Ok." I restart as normal. That should seem to fix the problem, but I am still getting the following message every time I run Disk Utility.

How do I fix this issue? Any help would be appreciated.

My MacBook Pro specs:


OS X 10.9.1
2.7 Ghz Intel Core i7
16GB 1600MHz DDR3 RAM
750GB SSD
The apparent issues seems related to FileVault. The following steps seem to be the cure:


Go to “System Preferences” – “Security and Privacy”, click on
“FileVault” tab, click the lock icon on the bottom left to unlock,
then click on “Turn Off FileVault”. The decryption process will
take a while (hours).
When the decryption is done, reboot into Recovery HD.
Use Disk Utility to verify OS X Partition, this time the process
will take much longer and it will give you the same error message.
Click on “Repair Disk”.
DONE!
(Optional) Re-enable FileVault.


Source: http://alanhan.net/how-to-fix-volume-bitmap-needs-minor-repair-for-orphaned-blocks-on-os-x-10-8/