|To:||Lachlan McIlroy <lachlan@xxxxxxx>, xfs-dev <xfs-dev@xxxxxxx>, xfs-oss <xfs@xxxxxxxxxxx>|
|Subject:||Re: [PATCH] Do not access buffers after dropping reference count|
|From:||Lachlan McIlroy <lachlan@xxxxxxx>|
|Date:||Tue, 22 Jul 2008 12:55:52 +1000|
|User-agent:||Thunderbird 18.104.22.168 (X11/20080421)|
Dave Chinner wrote:
On Tue, Jul 22, 2008 at 12:16:45PM +1000, Lachlan McIlroy wrote:We should not access a buffer after dropping it's reference count otherwise we could race with another thread that releases the final reference count and frees the buffer causing us to access potentially unmapped memory.Looks OK. The commit message should point out this is a problem only for DEBUG kernels, though.
Okay, will do.
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