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Diffstat (limited to 'net/sunrpc/cache.c')
-rw-r--r--net/sunrpc/cache.c109
1 files changed, 56 insertions, 53 deletions
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index f740cb51802a..bd843a81afa0 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -42,7 +42,7 @@ static bool cache_listeners_exist(struct cache_detail *detail);
static void cache_init(struct cache_head *h, struct cache_detail *detail)
{
- time_t now = seconds_since_boot();
+ time64_t now = seconds_since_boot();
INIT_HLIST_NODE(&h->cache_list);
h->flags = 0;
kref_init(&h->ref);
@@ -77,6 +77,22 @@ static struct cache_head *sunrpc_cache_find_rcu(struct cache_detail *detail,
return NULL;
}
+static void sunrpc_begin_cache_remove_entry(struct cache_head *ch,
+ struct cache_detail *cd)
+{
+ /* Must be called under cd->hash_lock */
+ hlist_del_init_rcu(&ch->cache_list);
+ set_bit(CACHE_CLEANED, &ch->flags);
+ cd->entries --;
+}
+
+static void sunrpc_end_cache_remove_entry(struct cache_head *ch,
+ struct cache_detail *cd)
+{
+ cache_fresh_unlocked(ch, cd);
+ cache_put(ch, cd);
+}
+
static struct cache_head *sunrpc_cache_add_entry(struct cache_detail *detail,
struct cache_head *key,
int hash)
@@ -100,8 +116,7 @@ static struct cache_head *sunrpc_cache_add_entry(struct cache_detail *detail,
hlist_for_each_entry_rcu(tmp, head, cache_list) {
if (detail->match(tmp, key)) {
if (cache_is_expired(detail, tmp)) {
- hlist_del_init_rcu(&tmp->cache_list);
- detail->entries --;
+ sunrpc_begin_cache_remove_entry(tmp, detail);
freeme = tmp;
break;
}
@@ -117,10 +132,8 @@ static struct cache_head *sunrpc_cache_add_entry(struct cache_detail *detail,
cache_get(new);
spin_unlock(&detail->hash_lock);
- if (freeme) {
- cache_fresh_unlocked(freeme, detail);
- cache_put(freeme, detail);
- }
+ if (freeme)
+ sunrpc_end_cache_remove_entry(freeme, detail);
return new;
}
@@ -139,10 +152,10 @@ EXPORT_SYMBOL_GPL(sunrpc_cache_lookup_rcu);
static void cache_dequeue(struct cache_detail *detail, struct cache_head *ch);
-static void cache_fresh_locked(struct cache_head *head, time_t expiry,
+static void cache_fresh_locked(struct cache_head *head, time64_t expiry,
struct cache_detail *detail)
{
- time_t now = seconds_since_boot();
+ time64_t now = seconds_since_boot();
if (now <= detail->flush_time)
/* ensure it isn't immediately treated as expired */
now = detail->flush_time + 1;
@@ -274,7 +287,7 @@ int cache_check(struct cache_detail *detail,
struct cache_head *h, struct cache_req *rqstp)
{
int rv;
- long refresh_age, age;
+ time64_t refresh_age, age;
/* First decide return status as best we can */
rv = cache_is_valid(h);
@@ -288,7 +301,7 @@ int cache_check(struct cache_detail *detail,
rv = -ENOENT;
} else if (rv == -EAGAIN ||
(h->expiry_time != 0 && age > refresh_age/2)) {
- dprintk("RPC: Want update, refage=%ld, age=%ld\n",
+ dprintk("RPC: Want update, refage=%lld, age=%lld\n",
refresh_age, age);
if (!test_and_set_bit(CACHE_PENDING, &h->flags)) {
switch (cache_make_upcall(detail, h)) {
@@ -454,8 +467,7 @@ static int cache_clean(void)
if (!cache_is_expired(current_detail, ch))
continue;
- hlist_del_init_rcu(&ch->cache_list);
- current_detail->entries--;
+ sunrpc_begin_cache_remove_entry(ch, current_detail);
rv = 1;
break;
}
@@ -465,11 +477,8 @@ static int cache_clean(void)
if (!ch)
current_index ++;
spin_unlock(&cache_list_lock);
- if (ch) {
- set_bit(CACHE_CLEANED, &ch->flags);
- cache_fresh_unlocked(ch, d);
- cache_put(ch, d);
- }
+ if (ch)
+ sunrpc_end_cache_remove_entry(ch, d);
} else
spin_unlock(&cache_list_lock);
@@ -525,13 +534,9 @@ void cache_purge(struct cache_detail *detail)
for (i = 0; i < detail->hash_size; i++) {
head = &detail->hash_table[i];
hlist_for_each_entry_safe(ch, tmp, head, cache_list) {
- hlist_del_init_rcu(&ch->cache_list);
- detail->entries--;
-
- set_bit(CACHE_CLEANED, &ch->flags);
+ sunrpc_begin_cache_remove_entry(ch, detail);
spin_unlock(&detail->hash_lock);
- cache_fresh_unlocked(ch, detail);
- cache_put(ch, detail);
+ sunrpc_end_cache_remove_entry(ch, detail);
spin_lock(&detail->hash_lock);
}
}
@@ -1404,7 +1409,7 @@ static int c_show(struct seq_file *m, void *p)
return cd->cache_show(m, cd, NULL);
ifdebug(CACHE)
- seq_printf(m, "# expiry=%ld refcnt=%d flags=%lx\n",
+ seq_printf(m, "# expiry=%lld refcnt=%d flags=%lx\n",
convert_to_wallclock(cp->expiry_time),
kref_read(&cp->ref), cp->flags);
cache_get(cp);
@@ -1477,7 +1482,7 @@ static ssize_t read_flush(struct file *file, char __user *buf,
char tbuf[22];
size_t len;
- len = snprintf(tbuf, sizeof(tbuf), "%lu\n",
+ len = snprintf(tbuf, sizeof(tbuf), "%llu\n",
convert_to_wallclock(cd->flush_time));
return simple_read_from_buffer(buf, count, ppos, tbuf, len);
}
@@ -1488,7 +1493,7 @@ static ssize_t write_flush(struct file *file, const char __user *buf,
{
char tbuf[20];
char *ep;
- time_t now;
+ time64_t now;
if (*ppos || count > sizeof(tbuf)-1)
return -EINVAL;
@@ -1571,15 +1576,14 @@ static int cache_release_procfs(struct inode *inode, struct file *filp)
return cache_release(inode, filp, cd);
}
-static const struct file_operations cache_file_operations_procfs = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = cache_read_procfs,
- .write = cache_write_procfs,
- .poll = cache_poll_procfs,
- .unlocked_ioctl = cache_ioctl_procfs, /* for FIONREAD */
- .open = cache_open_procfs,
- .release = cache_release_procfs,
+static const struct proc_ops cache_channel_proc_ops = {
+ .proc_lseek = no_llseek,
+ .proc_read = cache_read_procfs,
+ .proc_write = cache_write_procfs,
+ .proc_poll = cache_poll_procfs,
+ .proc_ioctl = cache_ioctl_procfs, /* for FIONREAD */
+ .proc_open = cache_open_procfs,
+ .proc_release = cache_release_procfs,
};
static int content_open_procfs(struct inode *inode, struct file *filp)
@@ -1596,11 +1600,11 @@ static int content_release_procfs(struct inode *inode, struct file *filp)
return content_release(inode, filp, cd);
}
-static const struct file_operations content_file_operations_procfs = {
- .open = content_open_procfs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = content_release_procfs,
+static const struct proc_ops content_proc_ops = {
+ .proc_open = content_open_procfs,
+ .proc_read = seq_read,
+ .proc_lseek = seq_lseek,
+ .proc_release = content_release_procfs,
};
static int open_flush_procfs(struct inode *inode, struct file *filp)
@@ -1634,12 +1638,12 @@ static ssize_t write_flush_procfs(struct file *filp,
return write_flush(filp, buf, count, ppos, cd);
}
-static const struct file_operations cache_flush_operations_procfs = {
- .open = open_flush_procfs,
- .read = read_flush_procfs,
- .write = write_flush_procfs,
- .release = release_flush_procfs,
- .llseek = no_llseek,
+static const struct proc_ops cache_flush_proc_ops = {
+ .proc_open = open_flush_procfs,
+ .proc_read = read_flush_procfs,
+ .proc_write = write_flush_procfs,
+ .proc_release = release_flush_procfs,
+ .proc_lseek = no_llseek,
};
static void remove_cache_proc_entries(struct cache_detail *cd)
@@ -1662,19 +1666,19 @@ static int create_cache_proc_entries(struct cache_detail *cd, struct net *net)
goto out_nomem;
p = proc_create_data("flush", S_IFREG | 0600,
- cd->procfs, &cache_flush_operations_procfs, cd);
+ cd->procfs, &cache_flush_proc_ops, cd);
if (p == NULL)
goto out_nomem;
if (cd->cache_request || cd->cache_parse) {
p = proc_create_data("channel", S_IFREG | 0600, cd->procfs,
- &cache_file_operations_procfs, cd);
+ &cache_channel_proc_ops, cd);
if (p == NULL)
goto out_nomem;
}
if (cd->cache_show) {
p = proc_create_data("content", S_IFREG | 0400, cd->procfs,
- &content_file_operations_procfs, cd);
+ &content_proc_ops, cd);
if (p == NULL)
goto out_nomem;
}
@@ -1886,10 +1890,9 @@ void sunrpc_cache_unhash(struct cache_detail *cd, struct cache_head *h)
{
spin_lock(&cd->hash_lock);
if (!hlist_unhashed(&h->cache_list)){
- hlist_del_init_rcu(&h->cache_list);
- cd->entries--;
+ sunrpc_begin_cache_remove_entry(h, cd);
spin_unlock(&cd->hash_lock);
- cache_put(h, cd);
+ sunrpc_end_cache_remove_entry(h, cd);
} else
spin_unlock(&cd->hash_lock);
}
generated by cgit v1.2.3 (git 2.46.0) at 2025-04-26 04:15:15 +0000