sunrpc: extract some common sunrpc_cache code from nfsd
Rather can duplicating this idiom twice, put it in an inline function.
This reduces the usage of 'expiry_time' out side the sunrpc/cache.c
code and thus the impact of a change that is about to be made to that
field.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index c2a4f71..e56827b 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -935,10 +935,9 @@
ek = exp_get_fsid_key(exp->ex_client, exp->ex_fsid);
if (!IS_ERR(ek)) {
- ek->h.expiry_time = get_seconds()-1;
+ sunrpc_invalidate(&ek->h, &svc_expkey_cache);
cache_put(&ek->h, &svc_expkey_cache);
}
- svc_expkey_cache.nextcheck = get_seconds();
}
static int exp_fsid_hash(svc_client *clp, struct svc_export *exp)
@@ -973,10 +972,9 @@
ek = exp_get_key(exp->ex_client, inode->i_sb->s_dev, inode->i_ino);
if (!IS_ERR(ek)) {
- ek->h.expiry_time = get_seconds()-1;
+ sunrpc_invalidate(&ek->h, &svc_expkey_cache);
cache_put(&ek->h, &svc_expkey_cache);
}
- svc_expkey_cache.nextcheck = get_seconds();
}
/*
@@ -1097,8 +1095,7 @@
static void
exp_do_unexport(svc_export *unexp)
{
- unexp->h.expiry_time = get_seconds()-1;
- svc_export_cache.nextcheck = get_seconds();
+ sunrpc_invalidate(&unexp->h, &svc_export_cache);
exp_unhash(unexp);
exp_fsid_unhash(unexp);
}
diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h
index 7bf3e84..0e1febf 100644
--- a/include/linux/sunrpc/cache.h
+++ b/include/linux/sunrpc/cache.h
@@ -228,4 +228,10 @@
return rv;
}
+static inline void sunrpc_invalidate(struct cache_head *h,
+ struct cache_detail *detail)
+{
+ h->expiry_time = get_seconds() - 1;
+ detail->nextcheck = get_seconds();
+}
#endif /* _LINUX_SUNRPC_CACHE_H_ */