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nfsd41: hange from page to memory based drc limits

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NFSD_SLOT_CACHE_SIZE is the size of all encoded operation responses
(excluding the sequence operation) that we want to cache.

For now, keep NFSD_SLOT_CACHE_SIZE at PAGE_SIZE. It will be reduced
when the DRC is changed from page based to memory based.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Andy Adamson 2009-07-27 19:09:19 -04:00 • committed by J. Bruce Fields
parent 6a14dd1a4f
commit 0c193054a4
4 changed files with 22 additions and 24 deletions
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13
fs/nfsd/nfssvc.c
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@ -74,8 +74,8 @@ struct svc_serv *nfsd_serv;
* nfsd_drc_pages_used tracks the current version 4.1 DRC memory usage.
*/
spinlock_t nfsd_drc_lock;
unsigned int nfsd_drc_max_pages;
unsigned int nfsd_drc_pages_used;
unsigned int nfsd_drc_max_mem;
unsigned int nfsd_drc_mem_used;
#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
static struct svc_stat nfsd_acl_svcstats;
@ -247,12 +247,11 @@ void nfsd_reset_versions(void)
static void set_max_drc(void)
{
#define NFSD_DRC_SIZE_SHIFT 10
nfsd_drc_max_pages = nr_free_buffer_pages()
>> NFSD_DRC_SIZE_SHIFT;
nfsd_drc_pages_used = 0;
nfsd_drc_max_mem = (nr_free_buffer_pages()
>> NFSD_DRC_SIZE_SHIFT) * PAGE_SIZE;
nfsd_drc_mem_used = 0;
spin_lock_init(&nfsd_drc_lock);
dprintk("%s nfsd_drc_max_pages %u\n", __func__,
nfsd_drc_max_pages);
dprintk("%s nfsd_drc_max_mem %u \n", __func__, nfsd_drc_max_mem);
}
int nfsd_create_serv(void)