mirror of
https://github.com/torvalds/linux
synced 2024-09-06 18:01:05 +00:00
sunrpc/cache: simplify cache_fresh_locked and cache_fresh_unlocked.
The extra call to cache_revisit_request in cache_fresh_unlocked is not
needed, as should have been fairly clear at the time of
commit 4013edea9a
If there are requests to be revisited, then we can be sure that
CACHE_PENDING is set, so the second call is sufficient.
So remove the first call.
Then remove the 'new' parameter,
then remove the return value for cache_fresh_locked which is only used
to provide the value for 'new'.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
parent
9e4c6379a6
commit
908329f2c0
|
@ -105,18 +105,16 @@ EXPORT_SYMBOL_GPL(sunrpc_cache_lookup);
|
|||
|
||||
static void cache_dequeue(struct cache_detail *detail, struct cache_head *ch);
|
||||
|
||||
static int cache_fresh_locked(struct cache_head *head, time_t expiry)
|
||||
static void cache_fresh_locked(struct cache_head *head, time_t expiry)
|
||||
{
|
||||
head->expiry_time = expiry;
|
||||
head->last_refresh = get_seconds();
|
||||
return !test_and_set_bit(CACHE_VALID, &head->flags);
|
||||
set_bit(CACHE_VALID, &head->flags);
|
||||
}
|
||||
|
||||
static void cache_fresh_unlocked(struct cache_head *head,
|
||||
struct cache_detail *detail, int new)
|
||||
struct cache_detail *detail)
|
||||
{
|
||||
if (new)
|
||||
cache_revisit_request(head);
|
||||
if (test_and_clear_bit(CACHE_PENDING, &head->flags)) {
|
||||
cache_revisit_request(head);
|
||||
cache_dequeue(detail, head);
|
||||
|
@ -132,7 +130,6 @@ struct cache_head *sunrpc_cache_update(struct cache_detail *detail,
|
|||
*/
|
||||
struct cache_head **head;
|
||||
struct cache_head *tmp;
|
||||
int is_new;
|
||||
|
||||
if (!test_bit(CACHE_VALID, &old->flags)) {
|
||||
write_lock(&detail->hash_lock);
|
||||
|
@ -141,9 +138,9 @@ struct cache_head *sunrpc_cache_update(struct cache_detail *detail,
|
|||
set_bit(CACHE_NEGATIVE, &old->flags);
|
||||
else
|
||||
detail->update(old, new);
|
||||
is_new = cache_fresh_locked(old, new->expiry_time);
|
||||
cache_fresh_locked(old, new->expiry_time);
|
||||
write_unlock(&detail->hash_lock);
|
||||
cache_fresh_unlocked(old, detail, is_new);
|
||||
cache_fresh_unlocked(old, detail);
|
||||
return old;
|
||||
}
|
||||
write_unlock(&detail->hash_lock);
|
||||
|
@ -167,11 +164,11 @@ struct cache_head *sunrpc_cache_update(struct cache_detail *detail,
|
|||
*head = tmp;
|
||||
detail->entries++;
|
||||
cache_get(tmp);
|
||||
is_new = cache_fresh_locked(tmp, new->expiry_time);
|
||||
cache_fresh_locked(tmp, new->expiry_time);
|
||||
cache_fresh_locked(old, 0);
|
||||
write_unlock(&detail->hash_lock);
|
||||
cache_fresh_unlocked(tmp, detail, is_new);
|
||||
cache_fresh_unlocked(old, detail, 0);
|
||||
cache_fresh_unlocked(tmp, detail);
|
||||
cache_fresh_unlocked(old, detail);
|
||||
cache_put(old, detail);
|
||||
return tmp;
|
||||
}
|
||||
|
@ -240,8 +237,8 @@ int cache_check(struct cache_detail *detail,
|
|||
cache_revisit_request(h);
|
||||
if (rv == -EAGAIN) {
|
||||
set_bit(CACHE_NEGATIVE, &h->flags);
|
||||
cache_fresh_unlocked(h, detail,
|
||||
cache_fresh_locked(h, get_seconds()+CACHE_NEW_EXPIRY));
|
||||
cache_fresh_locked(h, get_seconds()+CACHE_NEW_EXPIRY);
|
||||
cache_fresh_unlocked(h, detail);
|
||||
rv = -ENOENT;
|
||||
}
|
||||
break;
|
||||
|
|
Loading…
Reference in a new issue