Messages in this thread | | | Date | Tue, 19 Dec 2000 09:42:05 +0100 (CET) | From | Mikulas Patocka <> | Subject | Re: ANNOUNCE: Linux Kernel ORB: kORBit |
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On Tue, 19 Dec 2000, Andrea Arcangeli wrote:
> On Mon, Dec 18, 2000 at 10:57:44PM +0100, Mikulas Patocka wrote: > > You have small posibility that interrupt will eat up memory - interrupt in > > process that has PF_MEMALLOC. Patch: > > this is not the point of getblk, to fix the getblk deadlock the only way is to > implement a fail path in each caller and allow getblk to return NULL (as every > other memory allocation function can do).
Failing getblk would likely introduce filesystem corruption. Look at getblk in 2.0 - when allocating new page fails it tries to reuse existing clean buffers or wakes up bdflush and waits until it writes them. This is the right thing to do.
Mikulas
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