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-rw-r--r--net/ipv4/udp.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index abca870d8ff6..198f75b7bdd3 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1249,6 +1249,9 @@ csum_copy_err:
if (noblock)
return -EAGAIN;
+
+ /* starting over for a new packet */
+ msg->msg_flags &= ~MSG_TRUNC;
goto try_again;
}
@@ -2206,16 +2209,10 @@ void __init udp_table_init(struct udp_table *table, const char *name)
void __init udp_init(void)
{
- unsigned long nr_pages, limit;
+ unsigned long limit;
udp_table_init(&udp_table, "UDP");
- /* Set the pressure threshold up by the same strategy of TCP. It is a
- * fraction of global memory that is up to 1/2 at 256 MB, decreasing
- * toward zero with the amount of memory, with a floor of 128 pages.
- */
- nr_pages = totalram_pages - totalhigh_pages;
- limit = min(nr_pages, 1UL<<(28-PAGE_SHIFT)) >> (20-PAGE_SHIFT);
- limit = (limit * (nr_pages >> (20-PAGE_SHIFT))) >> (PAGE_SHIFT-11);
+ limit = nr_free_buffer_pages() / 8;
limit = max(limit, 128UL);
sysctl_udp_mem[0] = limit / 4 * 3;
sysctl_udp_mem[1] = limit;