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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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4
include/linux/nfsd/nfsd.h
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@ -57,8 +57,8 @@ extern u32 nfsd_supported_minorversion;
extern struct mutex nfsd_mutex;
extern struct svc_serv *nfsd_serv;
extern spinlock_t nfsd_drc_lock;
extern unsigned int nfsd_drc_max_pages;
extern unsigned int nfsd_drc_pages_used;
extern unsigned int nfsd_drc_max_mem;
extern unsigned int nfsd_drc_mem_used;
extern struct seq_operations nfs_exports_op;

1
include/linux/nfsd/state.h
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@ -96,6 +96,7 @@ struct nfs4_cb_conn {
#define NFSD_MAX_SLOTS_PER_SESSION 128
/* Maximum number of pages per slot cache entry */
#define NFSD_PAGES_PER_SLOT 1
#define NFSD_SLOT_CACHE_SIZE PAGE_SIZE
/* Maximum number of operations per session compound */
#define NFSD_MAX_OPS_PER_COMPOUND 16