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| author | Nick Piggin <nickpiggin@yahoo.com.au> | 2005-05-01 17:58:36 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-01 17:58:36 +0200 |
| commit | b84a35be0285229b0a8a5e2e04d79360c5b75562 (patch) | |
| tree | 3ff63fde8534eb615b408d047b461015781f6a5b /fs | |
| parent | [PATCH] mm: pcp use non powers of 2 for batch size (diff) | |
| download | linux-b84a35be0285229b0a8a5e2e04d79360c5b75562.tar.xz linux-b84a35be0285229b0a8a5e2e04d79360c5b75562.zip | |
[PATCH] mempool: NOMEMALLOC and NORETRY
Mempools have 2 problems.
The first is that mempool_alloc can possibly get stuck in __alloc_pages
when they should opt to fail, and take an element from their reserved pool.
The second is that it will happily eat emergency PF_MEMALLOC reserves
instead of going to their reserved pools.
Fix the first by passing __GFP_NORETRY in the allocation calls in
mempool_alloc. Fix the second by introducing a __GFP_MEMPOOL flag which
directs the page allocator not to allocate from the reserve pool.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions