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authorChristoph Hellwig <hch@lst.de>2018-04-13 20:38:35 +0200
committerChristoph Hellwig <hch@lst.de>2018-05-16 07:24:30 +0200
commit3617d9496cd92dcca4d0893191d95554590d8d9f (patch)
tree3054a4c965a42aa4375b08f92b111e1943cd41c5 /net/ipv4/proc.c
parentc3506372277779fccbffee2475400fcd689d5738 (diff)
proc: introduce proc_create_net_single
Variant of proc_create_data that directly take a seq_file show callback and deals with network namespaces in ->open and ->release. All callers of proc_create + single_open_net converted over, and single_{open,release}_net are removed entirely. Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'net/ipv4/proc.c')
-rw-r--r--net/ipv4/proc.c48
1 files changed, 6 insertions, 42 deletions
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index a058de677e94..573e43c8ed87 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -77,18 +77,6 @@ static int sockstat_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static int sockstat_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, sockstat_seq_show);
-}
-
-static const struct file_operations sockstat_seq_fops = {
- .open = sockstat_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
/* snmp items */
static const struct snmp_mib snmp4_ipstats_list[] = {
SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INPKTS),
@@ -460,20 +448,6 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static int snmp_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, snmp_seq_show);
-}
-
-static const struct file_operations snmp_seq_fops = {
- .open = snmp_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
-
-
/*
* Output /proc/net/netstat
*/
@@ -507,26 +481,16 @@ static int netstat_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static int netstat_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, netstat_seq_show);
-}
-
-static const struct file_operations netstat_seq_fops = {
- .open = netstat_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
static __net_init int ip_proc_init_net(struct net *net)
{
- if (!proc_create("sockstat", 0444, net->proc_net,
- &sockstat_seq_fops))
+ if (!proc_create_net_single("sockstat", 0444, net->proc_net,
+ sockstat_seq_show, NULL))
goto out_sockstat;
- if (!proc_create("netstat", 0444, net->proc_net, &netstat_seq_fops))
+ if (!proc_create_net_single("netstat", 0444, net->proc_net,
+ netstat_seq_show, NULL))
goto out_netstat;
- if (!proc_create("snmp", 0444, net->proc_net, &snmp_seq_fops))
+ if (!proc_create_net_single("snmp", 0444, net->proc_net, snmp_seq_show,
+ NULL))
goto out_snmp;
return 0;