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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 /drivers/scsi/scsi_lib.c | |
| parent | Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 (diff) | |
| download | linux-dev-5972511b77809cb7c9ccdb79b825c54921c5c546.tar.xz linux-dev-5972511b77809cb7c9ccdb79b825c54921c5c546.zip | |
[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 'drivers/scsi/scsi_lib.c')
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 9f7482d0b594..05d79af5ab90 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -31,7 +31,7 @@ #define SG_MEMPOOL_NR ARRAY_SIZE(scsi_sg_pools) -#define SG_MEMPOOL_SIZE 32 +#define SG_MEMPOOL_SIZE 2 struct scsi_host_sg_pool { size_t size; |