diff options
author | Denis V. Lunev <den@openvz.org> | 2008-01-10 12:52:35 +0100 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-01-29 00:01:36 +0100 |
commit | ae22120ad846399f6aa19c5b32f8d4c7bd068fd1 (patch) | |
tree | 578eb44774b29cbb740005d59d5d29115ccbc3ef /net/atm/clip.c | |
parent | [ATM]: Oops reading net/atm/arp (diff) | |
download | linux-ae22120ad846399f6aa19c5b32f8d4c7bd068fd1.tar.xz linux-ae22120ad846399f6aa19c5b32f8d4c7bd068fd1.zip |
[ATM]: Simplify /proc/net/atm/arp opening
The iterator state->ns.neigh_sub_iter initialization is moved from
arp_seq_open to clip_seq_start for convinience. This should not be a
problem as the iterator will be used only after the seq_start
callback.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/atm/clip.c')
-rw-r--r-- | net/atm/clip.c | 42 |
1 files changed, 5 insertions, 37 deletions
diff --git a/net/atm/clip.c b/net/atm/clip.c index df7d218a6827..45e08620c8ca 100644 --- a/net/atm/clip.c +++ b/net/atm/clip.c @@ -903,6 +903,8 @@ static void *clip_seq_sub_iter(struct neigh_seq_state *_state, static void *clip_seq_start(struct seq_file *seq, loff_t * pos) { + struct clip_seq_state *state = seq->private; + state->ns.neigh_sub_iter = clip_seq_sub_iter; return neigh_seq_start(seq, pos, &clip_tbl, NEIGH_SEQ_NEIGH_ONLY); } @@ -932,49 +934,15 @@ static const struct seq_operations arp_seq_ops = { static int arp_seq_open(struct inode *inode, struct file *file) { - struct clip_seq_state *state; - struct seq_file *seq; - int rc = -EAGAIN; - - state = kzalloc(sizeof(*state), GFP_KERNEL); - if (!state) { - rc = -ENOMEM; - goto out_kfree; - } - state->ns.neigh_sub_iter = clip_seq_sub_iter; - - rc = seq_open(file, &arp_seq_ops); - if (rc) - goto out_kfree; - - seq = file->private_data; - seq->private = state; - state->ns.net = get_proc_net(inode); - if (!state->ns.net) { - seq_release_private(inode, file); - rc = -ENXIO; - } -out: - return rc; - -out_kfree: - kfree(state); - goto out; -} - -static int arp_seq_release(struct inode *inode, struct file *file) -{ - struct seq_file *seq = file->private_data; - struct clip_seq_state *state = seq->private; - put_net(state->ns.net); - return seq_release_private(inode, file); + return seq_open_net(inode, file, &arp_seq_ops, + sizeof(struct clip_seq_state)); } static const struct file_operations arp_seq_fops = { .open = arp_seq_open, .read = seq_read, .llseek = seq_lseek, - .release = arp_seq_release, + .release = seq_release_net, .owner = THIS_MODULE }; #endif |