Re: [PATCH] x86 spinlock: Fix memory corruption on completing completions
On Mon, Feb 09, 2015 at 03:04:22PM +0530, Raghavendra K T wrote: > So we have 3 choices, > 1. xadd > 2. continue with current approach. > 3. a read before unlock and also after that.
For the truly paranoid we have probe_kernel_address(), suppose the lock was in module space and the module just got unloaded under us.