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authorSasha Levin <sasha.levin@oracle.com>2014-06-04 18:02:32 -0400
committerDavid S. Miller <davem@davemloft.net>2014-06-04 15:11:41 -0700
commitf830b0223cabfc614552a73dabff920859191f2e (patch)
tree37843d8a076c5dfab950fcc8910dd4138a617135 /net/ipv4
parentcef33c815a80bf1f3b3353e2ee8d9a617007c8aa (diff)
net: Revert "fib_trie: use seq_file_net rather than seq->private"
This reverts commit 30f38d2fdd79f13fc929489f7e6e517b4a4bfe63. fib_triestat is surrounded by a big lie: while it claims that it's a seq_file (fib_triestat_seq_open, fib_triestat_seq_show), it isn't: static const struct file_operations fib_triestat_fops = { .owner = THIS_MODULE, .open = fib_triestat_seq_open, .read = seq_read, .llseek = seq_lseek, .release = single_release_net, }; Yes, fib_triestat is just a regular file. A small detail (assuming CONFIG_NET_NS=y) is that while for seq_files you could do seq_file_net() to get the net ptr, doing so for a regular file would be wrong and would dereference an invalid pointer. The fib_triestat lie claimed a victim, and trying to show the file would be bad for the kernel. This patch just reverts the issue and fixes fib_triestat, which still needs a rewrite to either be a seq_file or stop claiming it is. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/fib_trie.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 243c7f4e451e..5afeb5aa4c7c 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -2166,7 +2166,7 @@ static void fib_table_print(struct seq_file *seq, struct fib_table *tb)
static int fib_triestat_seq_show(struct seq_file *seq, void *v)
{
- struct net *net = seq_file_net(seq);
+ struct net *net = (struct net *)seq->private;
unsigned int h;
seq_printf(seq,