Re: [PATCH] struct file cleanup : the very large file_ra_state is now allocated only on demand.

> You don't want to always have bad performance though, so you
> could attempt to allocate if either the pointer is null _or_ it
> points to the global structure?

Remember it's after a GFP_KERNEL OOM. If that fails most likely
you have deadlocked somewhere else already because Linux's handling
of that is so bad. Suboptimal readahead somewhere is the smallest
of your problems.

-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Follow-Ups:
- Re: [PATCH] struct file cleanup : the very large file_ra_state is now allocated only on demand.
  - From: Nick Piggin <[email protected]>

References:
- [PATCH] struct file cleanup : the very large file_ra_state is now allocated only on demand.
  - From: Eric Dumazet <[email protected]>
- Re: [PATCH] struct file cleanup : the very large file_ra_state is now allocated only on demand.
  - From: Andi Kleen <[email protected]>
- Re: [PATCH] struct file cleanup : the very large file_ra_state is now allocated only on demand.
  - From: Nick Piggin <[email protected]>

Prev by Date: [PATCH] DVB: lgdt330x check callback fix
Next by Date: Re: sched_yield() makes OpenLDAP slow
Previous by thread: Re: [PATCH] struct file cleanup : the very large file_ra_state is now allocated only on demand.
Next by thread: Re: [PATCH] struct file cleanup : the very large file_ra_state is now allocated only on demand.
Index(es):
- Date
- Thread

[Index of Archives] [Kernel Newbies] [Netfilter] [Bugtraq] [Photo] [Gimp] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Video 4 Linux] [Linux for the blind]