diff options
| author | Angus Chen <angus.chen@jaguarmicro.com> | 2023-05-12 09:01:52 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-05-15 08:42:07 +0100 |
| commit | b2cbac9b9b28730e9e53be20b6cdf979d3b9f27e (patch) | |
| tree | 7347f32ea4db6680d4fd8b3dedb4bde4c1d65743 /net/ipv4 | |
| parent | 6d4ff8aed3b3f3afe12b40ff7e48815fc9688889 (diff) | |
net: Remove low_thresh in ip defrag
As low_thresh has no work in fragment reassembles,del it.
And Mark it deprecated in sysctl Document.
Signed-off-by: Angus Chen <angus.chen@jaguarmicro.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_fragment.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index 69c00ffdcf3e..0db5eb3dec83 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -553,7 +553,7 @@ EXPORT_SYMBOL(ip_check_defrag); #ifdef CONFIG_SYSCTL static int dist_min; - +static unsigned long ipfrag_low_thresh_unused; static struct ctl_table ip4_frags_ns_ctl_table[] = { { .procname = "ipfrag_high_thresh", @@ -609,9 +609,9 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net) } table[0].data = &net->ipv4.fqdir->high_thresh; - table[0].extra1 = &net->ipv4.fqdir->low_thresh; - table[1].data = &net->ipv4.fqdir->low_thresh; - table[1].extra2 = &net->ipv4.fqdir->high_thresh; + table[0].extra1 = &ipfrag_low_thresh_unused; + table[1].data = &ipfrag_low_thresh_unused; + table[1].extra2 = &net->ipv4.fqdir->high_thresh; table[2].data = &net->ipv4.fqdir->timeout; table[3].data = &net->ipv4.fqdir->max_dist; @@ -674,12 +674,9 @@ static int __net_init ipv4_frags_init_net(struct net *net) * A 64K fragment consumes 129736 bytes (44*2944)+200 * (1500 truesize == 2944, sizeof(struct ipq) == 200) * - * We will commit 4MB at one time. Should we cross that limit - * we will prune down to 3MB, making room for approx 8 big 64K - * fragments 8x128k. + * We will commit 4MB at one time. Should we cross that limit. */ net->ipv4.fqdir->high_thresh = 4 * 1024 * 1024; - net->ipv4.fqdir->low_thresh = 3 * 1024 * 1024; /* * Important NOTE! Fragment queue must be destroyed before MSL expires. * RFC791 is wrong proposing to prolongate timer each fragment arrival |