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| author | Jens Axboe <jens.axboe@oracle.com> | 2007-04-02 10:06:42 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@nelson.home.kernel.dk> | 2007-04-30 09:08:17 +0200 |
| commit | 5972511b77809cb7c9ccdb79b825c54921c5c546 (patch) | |
| tree | 8dec5821badf9750be04f339f0f621fab2114c8a /include | |
| parent | b9099ff63c75216d6ca10bce5a1abcd9293c27e6 (diff) | |
| download | op-kernel-dev-5972511b77809cb7c9ccdb79b825c54921c5c546.zip op-kernel-dev-5972511b77809cb7c9ccdb79b825c54921c5c546.tar.gz | |
[BLOCK] Don't pin lots of memory in mempools
Currently we scale the mempool sizes depending on memory installed
in the machine, except for the bio pool itself which sits at a fixed
256 entry pre-allocation.
There's really no point in "optimizing" this OOM path, we just need
enough preallocated to make progress. A single unit is enough, lets
scale it down to 2 just to be on the safe side.
This patch saves ~150kb of pinned kernel memory on a 32-bit box.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bio.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h index 08daf32..4d85262 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -276,7 +276,7 @@ extern struct bio_pair *bio_split(struct bio *bi, mempool_t *pool, extern mempool_t *bio_split_pool; extern void bio_pair_release(struct bio_pair *dbio); -extern struct bio_set *bioset_create(int, int, int); +extern struct bio_set *bioset_create(int, int); extern void bioset_free(struct bio_set *); extern struct bio *bio_alloc(gfp_t, int); |
