Messages in this thread | | | Subject | Re: [patch] show_buffers() resurrection | Date | Sun, 12 Sep 1999 15:45:09 +0100 (BST) | From | Alan Cox <> |
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> Andrea, this was _SPECIFICALLY_ removed because it made the buffer > cache locking more complex. You risk total and complete deadlock > unless you change all of the buffer cache spinlocks to be IRQ > spinlocks.
If you look at the patch it doesn't touch the buffer locking. It just tries to test the lock if it can. Instead of locking the show buffers case against the system it simply does nothing if it cant get the lock, so doesn't deadlock
Alan
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